- Linux-stable-mirror - lists.linaro.org

[PATCH v7 2/5] drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend()

by Lyude Paul

Since actual hotplug notifications don't get disabled until nouveau_display_fini() is called, all this will do is cause any hotplugs that happen between this drm_kms_helper_poll_disable() call and the actual hotplug disablement to potentially be dropped if ACPI isn't around to help us. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_drm.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index c7ec86d6c3c9..5fdc1fbe2ee5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -835,7 +835,6 @@ nouveau_pmops_runtime_suspend(struct device *dev) return -EBUSY; } - drm_kms_helper_poll_disable(drm_dev); nouveau_switcheroo_optimus_dsm(); ret = nouveau_do_suspend(drm_dev, true); pci_save_state(pdev); -- 2.17.1

7 years, 1 month

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[PATCH v7 1/5] drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement

by Lyude Paul

Turns out this part is my fault for not noticing when reviewing 9a2eba337cace ("drm/nouveau: Fix drm poll_helper handling"). Currently we call drm_kms_helper_poll_enable() from nouveau_display_hpd_work(). This makes basically no sense however, because that means we're calling drm_kms_helper_poll_enable() every time we schedule the hotplug detection work. This is also against the advice mentioned in drm_kms_helper_poll_enable()'s documentation: Note that calls to enable and disable polling must be strictly ordered, which is automatically the case when they're only call from suspend/resume callbacks. Of course, hotplugs can't really be ordered. They could even happen immediately after we called drm_kms_helper_poll_disable() in nouveau_display_fini(), which can lead to all sorts of issues. Additionally; enabling polling /after/ we call drm_helper_hpd_irq_event() could also mean that we'd miss a hotplug event anyway, since drm_helper_hpd_irq_event() wouldn't bother trying to probe connectors so long as polling is disabled. So; simply move this back into nouveau_display_init() again. The race condition that both of these patches attempted to work around has already been fixed properly in d61a5c106351 ("drm/nouveau: Fix deadlock on runtime suspend") Fixes: 9a2eba337cace ("drm/nouveau: Fix drm poll_helper handling") Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Peter Ujfalusi <peter.ujfalusi(a)ti.com> Cc: stable(a)vger.kernel.org --- drivers/gpu/drm/nouveau/nouveau_display.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index ec7861457b84..1d36ab5d4796 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -355,8 +355,6 @@ nouveau_display_hpd_work(struct work_struct *work) pm_runtime_get_sync(drm->dev->dev); drm_helper_hpd_irq_event(drm->dev); - /* enable polling for external displays */ - drm_kms_helper_poll_enable(drm->dev); pm_runtime_mark_last_busy(drm->dev->dev); pm_runtime_put_sync(drm->dev->dev); @@ -411,6 +409,11 @@ nouveau_display_init(struct drm_device *dev) if (ret) return ret; + /* enable connector detection and polling for connectors without HPD + * support + */ + drm_kms_helper_poll_enable(dev); + /* enable hotplug interrupts */ drm_connector_list_iter_begin(dev, &conn_iter); nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { -- 2.17.1

7 years, 1 month

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[PATCH v6 3/5] drm/nouveau: Fix deadlock with fb_helper with async RPM requests

by Lyude Paul

I'm sure I don't need to tell you that fb_helper's locking is a mess. That being said; fb_helper's locking mess can seriously complicate the runtime suspend/resume operations of drivers because it can invoke atomic commits and connector probing from anywhere that calls drm_fb_helper_hotplug_event(). Since most drivers use drm_fb_helper_output_poll_changed() as their output_poll_changed handler, this can happen in every single context that can fire off a hotplug event. An example: [ 246.669625] INFO: task kworker/4:0:37 blocked for more than 120 seconds. [ 246.673398] Not tainted 4.18.0-rc5Lyude-Test+ #2 [ 246.675271] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.676527] kworker/4:0 D 0 37 2 0x80000000 [ 246.677580] Workqueue: events output_poll_execute [drm_kms_helper] [ 246.678704] Call Trace: [ 246.679753] __schedule+0x322/0xaf0 [ 246.680916] schedule+0x33/0x90 [ 246.681924] schedule_preempt_disabled+0x15/0x20 [ 246.683023] __mutex_lock+0x569/0x9a0 [ 246.684035] ? kobject_uevent_env+0x117/0x7b0 [ 246.685132] ? drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.686179] mutex_lock_nested+0x1b/0x20 [ 246.687278] ? mutex_lock_nested+0x1b/0x20 [ 246.688307] drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.689420] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.690462] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.691570] output_poll_execute+0x198/0x1c0 [drm_kms_helper] [ 246.692611] process_one_work+0x231/0x620 [ 246.693725] worker_thread+0x214/0x3a0 [ 246.694756] kthread+0x12b/0x150 [ 246.695856] ? wq_pool_ids_show+0x140/0x140 [ 246.696888] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.697998] ret_from_fork+0x3a/0x50 [ 246.699034] INFO: task kworker/0:1:60 blocked for more than 120 seconds. [ 246.700153] Not tainted 4.18.0-rc5Lyude-Test+ #2 [ 246.701182] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.702278] kworker/0:1 D 0 60 2 0x80000000 [ 246.703293] Workqueue: pm pm_runtime_work [ 246.704393] Call Trace: [ 246.705403] __schedule+0x322/0xaf0 [ 246.706439] ? wait_for_completion+0x104/0x190 [ 246.707393] schedule+0x33/0x90 [ 246.708375] schedule_timeout+0x3a5/0x590 [ 246.709289] ? mark_held_locks+0x58/0x80 [ 246.710208] ? _raw_spin_unlock_irq+0x2c/0x40 [ 246.711222] ? wait_for_completion+0x104/0x190 [ 246.712134] ? trace_hardirqs_on_caller+0xf4/0x190 [ 246.713094] ? wait_for_completion+0x104/0x190 [ 246.713964] wait_for_completion+0x12c/0x190 [ 246.714895] ? wake_up_q+0x80/0x80 [ 246.715727] ? get_work_pool+0x90/0x90 [ 246.716649] flush_work+0x1c9/0x280 [ 246.717483] ? flush_workqueue_prep_pwqs+0x1b0/0x1b0 [ 246.718442] __cancel_work_timer+0x146/0x1d0 [ 246.719247] cancel_delayed_work_sync+0x13/0x20 [ 246.720043] drm_kms_helper_poll_disable+0x1f/0x30 [drm_kms_helper] [ 246.721123] nouveau_pmops_runtime_suspend+0x3d/0xb0 [nouveau] [ 246.721897] pci_pm_runtime_suspend+0x6b/0x190 [ 246.722825] ? pci_has_legacy_pm_support+0x70/0x70 [ 246.723737] __rpm_callback+0x7a/0x1d0 [ 246.724721] ? pci_has_legacy_pm_support+0x70/0x70 [ 246.725607] rpm_callback+0x24/0x80 [ 246.726553] ? pci_has_legacy_pm_support+0x70/0x70 [ 246.727376] rpm_suspend+0x142/0x6b0 [ 246.728185] pm_runtime_work+0x97/0xc0 [ 246.728938] process_one_work+0x231/0x620 [ 246.729796] worker_thread+0x44/0x3a0 [ 246.730614] kthread+0x12b/0x150 [ 246.731395] ? wq_pool_ids_show+0x140/0x140 [ 246.732202] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.732878] ret_from_fork+0x3a/0x50 [ 246.733768] INFO: task kworker/4:2:422 blocked for more than 120 seconds. [ 246.734587] Not tainted 4.18.0-rc5Lyude-Test+ #2 [ 246.735393] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 246.736113] kworker/4:2 D 0 422 2 0x80000080 [ 246.736789] Workqueue: events_long drm_dp_mst_link_probe_work [drm_kms_helper] [ 246.737665] Call Trace: [ 246.738490] __schedule+0x322/0xaf0 [ 246.739250] schedule+0x33/0x90 [ 246.739908] rpm_resume+0x19c/0x850 [ 246.740750] ? finish_wait+0x90/0x90 [ 246.741541] __pm_runtime_resume+0x4e/0x90 [ 246.742370] nv50_disp_atomic_commit+0x31/0x210 [nouveau] [ 246.743124] drm_atomic_commit+0x4a/0x50 [drm] [ 246.743775] restore_fbdev_mode_atomic+0x1c8/0x240 [drm_kms_helper] [ 246.744603] restore_fbdev_mode+0x31/0x140 [drm_kms_helper] [ 246.745373] drm_fb_helper_restore_fbdev_mode_unlocked+0x54/0xb0 [drm_kms_helper] [ 246.746220] drm_fb_helper_set_par+0x2d/0x50 [drm_kms_helper] [ 246.746884] drm_fb_helper_hotplug_event.part.28+0x96/0xb0 [drm_kms_helper] [ 246.747675] drm_fb_helper_output_poll_changed+0x23/0x30 [drm_kms_helper] [ 246.748544] drm_kms_helper_hotplug_event+0x2a/0x30 [drm_kms_helper] [ 246.749439] nv50_mstm_hotplug+0x15/0x20 [nouveau] [ 246.750111] drm_dp_send_link_address+0x177/0x1c0 [drm_kms_helper] [ 246.750764] drm_dp_check_and_send_link_address+0xa8/0xd0 [drm_kms_helper] [ 246.751602] drm_dp_mst_link_probe_work+0x51/0x90 [drm_kms_helper] [ 246.752314] process_one_work+0x231/0x620 [ 246.752979] worker_thread+0x44/0x3a0 [ 246.753838] kthread+0x12b/0x150 [ 246.754619] ? wq_pool_ids_show+0x140/0x140 [ 246.755386] ? kthread_create_worker_on_cpu+0x70/0x70 [ 246.756162] ret_from_fork+0x3a/0x50 [ 246.756847] Showing all locks held in the system: [ 246.758261] 3 locks held by kworker/4:0/37: [ 246.759016] #0: 00000000f8df4d2d ((wq_completion)"events"){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.759856] #1: 00000000e6065461 ((work_completion)(&(&dev->mode_config.output_poll_work)->work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.760670] #2: 00000000cb66735f (&helper->lock){+.+.}, at: drm_fb_helper_hotplug_event.part.28+0x20/0xb0 [drm_kms_helper] [ 246.761516] 2 locks held by kworker/0:1/60: [ 246.762274] #0: 00000000fff6be0f ((wq_completion)"pm"){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.762982] #1: 000000005ab44fb4 ((work_completion)(&dev->power.work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.763890] 1 lock held by khungtaskd/64: [ 246.764664] #0: 000000008cb8b5c3 (rcu_read_lock){....}, at: debug_show_all_locks+0x23/0x185 [ 246.765588] 5 locks held by kworker/4:2/422: [ 246.766440] #0: 00000000232f0959 ((wq_completion)"events_long"){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.767390] #1: 00000000bb59b134 ((work_completion)(&mgr->work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 246.768154] #2: 00000000cb66735f (&helper->lock){+.+.}, at: drm_fb_helper_restore_fbdev_mode_unlocked+0x4c/0xb0 [drm_kms_helper] [ 246.768966] #3: 000000004c8f0b6b (crtc_ww_class_acquire){+.+.}, at: restore_fbdev_mode_atomic+0x4b/0x240 [drm_kms_helper] [ 246.769921] #4: 000000004c34a296 (crtc_ww_class_mutex){+.+.}, at: drm_modeset_backoff+0x8a/0x1b0 [drm] [ 246.770839] 1 lock held by dmesg/1038: [ 246.771739] 2 locks held by zsh/1172: [ 246.772650] #0: 00000000836d0438 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 246.773680] #1: 000000001f4f4d48 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0xc1/0x870 [ 246.775522] ============================================= After trying dozens of different solutions, I found one very simple one that should also have the benefit of preventing us from having to fight locking for the rest of our lives. So, we work around these deadlocks by deferring all fbcon hotplug events that happen after the runtime suspend process starts until after the device is resumed again. Changes since v5: - Come up with the (hopefully final) solution for solving this dumb problem, one that is a lot less likely to cause issues with locking in the future. This should work around all deadlock conditions with fbcon brought up thus far. Changes since v4: - Add nouveau_fbcon_hotplugged_in_suspend() to workaround deadlock condition that Lukas described - Just move all of this out of drm_fb_helper. It seems that other DRM drivers have already figured out other workarounds for this. If other drivers do end up needing this in the future, we can just move this back into drm_fb_helper again. Changes since v3: - Actually check if fb_helper is NULL in both new helpers - Actually check drm_fbdev_emulation in both new helpers - Don't fire off a fb_helper hotplug unconditionally; only do it if the following conditions are true (as otherwise, calling this in the wrong spot will cause Bad Things to happen): - fb_helper hotplug handling was actually inhibited previously - fb_helper actually has a delayed hotplug pending - fb_helper is actually bound - fb_helper is actually initialized - Add __must_check to drm_fb_helper_suspend_hotplug(). There's no situation where a driver would actually want to use this without checking the return value, so enforce that - Rewrite and clarify the documentation for both helpers. - Make sure to return true in the drm_fb_helper_suspend_hotplug() stub that's provided in drm_fb_helper.h when CONFIG_DRM_FBDEV_EMULATION isn't enabled - Actually grab the toplevel fb_helper lock in drm_fb_helper_resume_hotplug(), since it's possible other activity (such as a hotplug) could be going on at the same time the driver calls drm_fb_helper_resume_hotplug(). We need this to check whether or not drm_fb_helper_hotplug_event() needs to be called anyway Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +- drivers/gpu/drm/nouveau/nouveau_display.c | 2 +- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 72 +++++++++++++++++++++++ drivers/gpu/drm/nouveau/nouveau_fbcon.h | 7 +++ 4 files changed, 81 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 8b522a9b12f6..a0772389ed90 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -2049,7 +2049,7 @@ nv50_disp_atomic_state_alloc(struct drm_device *dev) static const struct drm_mode_config_funcs nv50_disp_func = { .fb_create = nouveau_user_framebuffer_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, + .output_poll_changed = nouveau_fbcon_output_poll_changed, .atomic_check = nv50_disp_atomic_check, .atomic_commit = nv50_disp_atomic_commit, .atomic_state_alloc = nv50_disp_atomic_state_alloc, diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 1d36ab5d4796..4b873e668b26 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -293,7 +293,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev, static const struct drm_mode_config_funcs nouveau_mode_config_funcs = { .fb_create = nouveau_user_framebuffer_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, + .output_poll_changed = nouveau_fbcon_output_poll_changed, }; diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 85c1f10bc2b6..c7e86e9232a6 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -466,6 +466,7 @@ nouveau_fbcon_set_suspend_work(struct work_struct *work) console_unlock(); if (state == FBINFO_STATE_RUNNING) { + nouveau_fbcon_hotplug_resume(drm->fbcon); pm_runtime_mark_last_busy(drm->dev->dev); pm_runtime_put_sync(drm->dev->dev); } @@ -487,6 +488,76 @@ nouveau_fbcon_set_suspend(struct drm_device *dev, int state) schedule_work(&drm->fbcon_work); } +void +nouveau_fbcon_output_poll_changed(struct drm_device *dev) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct nouveau_fbdev *fbcon = drm->fbcon; + int ret; + + if (!fbcon) + return; + + mutex_lock(&fbcon->hotplug_lock); + + ret = pm_runtime_get(dev->dev); + if (ret == 1 || ret == -EACCES) { + drm_fb_helper_hotplug_event(&fbcon->helper); + + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); + } else if (ret == 0) { + /* If the GPU was already in the process of suspending before + * this event happened, then we can't block here as we'll + * deadlock the runtime pmops since they wait for us to + * finish. So, just defer this event for when we runtime + * resume again. It will be handled by fbcon_work. + */ + NV_DEBUG(drm, "fbcon HPD event deferred until runtime resume\n"); + fbcon->hotplug_waiting = true; + pm_runtime_put_noidle(drm->dev->dev); + } else { + DRM_WARN("fbcon HPD event lost due to RPM failure: %d\n", + ret); + } + + mutex_unlock(&fbcon->hotplug_lock); +} + +void +nouveau_fbcon_hotplug_resume(struct nouveau_fbdev *fbcon) +{ + struct nouveau_drm *drm; + + if (!fbcon) + return; + drm = nouveau_drm(fbcon->helper.dev); + + mutex_lock(&fbcon->hotplug_lock); + if (fbcon->hotplug_waiting) { + fbcon->hotplug_waiting = false; + + NV_DEBUG(drm, "Handling deferred fbcon HPD events\n"); + drm_fb_helper_hotplug_event(&fbcon->helper); + } + mutex_unlock(&fbcon->hotplug_lock); +} + +bool +nouveau_fbcon_hotplugged_in_suspend(struct nouveau_fbdev *fbcon) +{ + bool hotplug; + + if (!fbcon) + return false; + + mutex_lock(&fbcon->hotplug_lock); + hotplug = fbcon->hotplug_waiting; + mutex_unlock(&fbcon->hotplug_lock); + + return hotplug; +} + int nouveau_fbcon_init(struct drm_device *dev) { @@ -505,6 +576,7 @@ nouveau_fbcon_init(struct drm_device *dev) drm->fbcon = fbcon; INIT_WORK(&drm->fbcon_work, nouveau_fbcon_set_suspend_work); + mutex_init(&fbcon->hotplug_lock); drm_fb_helper_prepare(dev, &fbcon->helper, &nouveau_fbcon_helper_funcs); diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.h b/drivers/gpu/drm/nouveau/nouveau_fbcon.h index a6f192ea3fa6..148c6b2cc6da 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.h +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.h @@ -41,6 +41,9 @@ struct nouveau_fbdev { struct nvif_object gdi; struct nvif_object blit; struct nvif_object twod; + + struct mutex hotplug_lock; + bool hotplug_waiting; }; void nouveau_fbcon_restore(void); @@ -68,6 +71,10 @@ void nouveau_fbcon_set_suspend(struct drm_device *dev, int state); void nouveau_fbcon_accel_save_disable(struct drm_device *dev); void nouveau_fbcon_accel_restore(struct drm_device *dev); +void nouveau_fbcon_output_poll_changed(struct drm_device *dev); +void nouveau_fbcon_hotplug_resume(struct nouveau_fbdev *fbcon); +bool nouveau_fbcon_hotplugged_in_suspend(struct nouveau_fbdev *fbcon); + extern int nouveau_nofbaccel; #endif /* __NV50_FBCON_H__ */ -- 2.17.1

7 years, 1 month

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Targeted Amazon Web Services/ Microsoft Azure Global Accounts

by heather.peterson＠laytheon.com

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7 years, 1 month

1
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[PATCH v6 5/5] drm/nouveau: Fix deadlocks in nouveau_connector_detect()

by Lyude Paul

When we disable hotplugging on the GPU, we need to be able to synchronize with each connector's hotplug interrupt handler before the interrupt is finally disabled. This can be a problem however, since nouveau_connector_detect() currently grabs a runtime power reference when handling connector probing. This will deadlock the runtime suspend handler like so: [ 861.480896] INFO: task kworker/0:2:61 blocked for more than 120 seconds. [ 861.483290] Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.485158] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.486332] kworker/0:2 D 0 61 2 0x80000000 [ 861.487044] Workqueue: events nouveau_display_hpd_work [nouveau] [ 861.487737] Call Trace: [ 861.488394] __schedule+0x322/0xaf0 [ 861.489070] schedule+0x33/0x90 [ 861.489744] rpm_resume+0x19c/0x850 [ 861.490392] ? finish_wait+0x90/0x90 [ 861.491068] __pm_runtime_resume+0x4e/0x90 [ 861.491753] nouveau_display_hpd_work+0x22/0x60 [nouveau] [ 861.492416] process_one_work+0x231/0x620 [ 861.493068] worker_thread+0x44/0x3a0 [ 861.493722] kthread+0x12b/0x150 [ 861.494342] ? wq_pool_ids_show+0x140/0x140 [ 861.494991] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.495648] ret_from_fork+0x3a/0x50 [ 861.496304] INFO: task kworker/6:2:320 blocked for more than 120 seconds. [ 861.496968] Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.497654] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.498341] kworker/6:2 D 0 320 2 0x80000080 [ 861.499045] Workqueue: pm pm_runtime_work [ 861.499739] Call Trace: [ 861.500428] __schedule+0x322/0xaf0 [ 861.501134] ? wait_for_completion+0x104/0x190 [ 861.501851] schedule+0x33/0x90 [ 861.502564] schedule_timeout+0x3a5/0x590 [ 861.503284] ? mark_held_locks+0x58/0x80 [ 861.503988] ? _raw_spin_unlock_irq+0x2c/0x40 [ 861.504710] ? wait_for_completion+0x104/0x190 [ 861.505417] ? trace_hardirqs_on_caller+0xf4/0x190 [ 861.506136] ? wait_for_completion+0x104/0x190 [ 861.506845] wait_for_completion+0x12c/0x190 [ 861.507555] ? wake_up_q+0x80/0x80 [ 861.508268] flush_work+0x1c9/0x280 [ 861.508990] ? flush_workqueue_prep_pwqs+0x1b0/0x1b0 [ 861.509735] nvif_notify_put+0xb1/0xc0 [nouveau] [ 861.510482] nouveau_display_fini+0xbd/0x170 [nouveau] [ 861.511241] nouveau_display_suspend+0x67/0x120 [nouveau] [ 861.511969] nouveau_do_suspend+0x5e/0x2d0 [nouveau] [ 861.512715] nouveau_pmops_runtime_suspend+0x47/0xb0 [nouveau] [ 861.513435] pci_pm_runtime_suspend+0x6b/0x180 [ 861.514165] ? pci_has_legacy_pm_support+0x70/0x70 [ 861.514897] __rpm_callback+0x7a/0x1d0 [ 861.515618] ? pci_has_legacy_pm_support+0x70/0x70 [ 861.516313] rpm_callback+0x24/0x80 [ 861.517027] ? pci_has_legacy_pm_support+0x70/0x70 [ 861.517741] rpm_suspend+0x142/0x6b0 [ 861.518449] pm_runtime_work+0x97/0xc0 [ 861.519144] process_one_work+0x231/0x620 [ 861.519831] worker_thread+0x44/0x3a0 [ 861.520522] kthread+0x12b/0x150 [ 861.521220] ? wq_pool_ids_show+0x140/0x140 [ 861.521925] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.522622] ret_from_fork+0x3a/0x50 [ 861.523299] INFO: task kworker/6:0:1329 blocked for more than 120 seconds. [ 861.523977] Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.524644] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.525349] kworker/6:0 D 0 1329 2 0x80000000 [ 861.526073] Workqueue: events nvif_notify_work [nouveau] [ 861.526751] Call Trace: [ 861.527411] __schedule+0x322/0xaf0 [ 861.528089] schedule+0x33/0x90 [ 861.528758] rpm_resume+0x19c/0x850 [ 861.529399] ? finish_wait+0x90/0x90 [ 861.530073] __pm_runtime_resume+0x4e/0x90 [ 861.530798] nouveau_connector_detect+0x7e/0x510 [nouveau] [ 861.531459] ? ww_mutex_lock+0x47/0x80 [ 861.532097] ? ww_mutex_lock+0x47/0x80 [ 861.532819] ? drm_modeset_lock+0x88/0x130 [drm] [ 861.533481] drm_helper_probe_detect_ctx+0xa0/0x100 [drm_kms_helper] [ 861.534127] drm_helper_hpd_irq_event+0xa4/0x120 [drm_kms_helper] [ 861.534940] nouveau_connector_hotplug+0x98/0x120 [nouveau] [ 861.535556] nvif_notify_work+0x2d/0xb0 [nouveau] [ 861.536221] process_one_work+0x231/0x620 [ 861.536994] worker_thread+0x44/0x3a0 [ 861.537757] kthread+0x12b/0x150 [ 861.538463] ? wq_pool_ids_show+0x140/0x140 [ 861.539102] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.539815] ret_from_fork+0x3a/0x50 [ 861.540521] Showing all locks held in the system: [ 861.541696] 2 locks held by kworker/0:2/61: [ 861.542406] #0: 000000002dbf8af5 ((wq_completion)"events"){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.543071] #1: 0000000076868126 ((work_completion)(&drm->hpd_work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.543814] 1 lock held by khungtaskd/64: [ 861.544535] #0: 0000000059db4b53 (rcu_read_lock){....}, at: debug_show_all_locks+0x23/0x185 [ 861.545160] 3 locks held by kworker/6:2/320: [ 861.545896] #0: 00000000d9e1bc59 ((wq_completion)"pm"){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.546702] #1: 00000000c9f92d84 ((work_completion)(&dev->power.work)){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.547443] #2: 000000004afc5de1 (drm_connector_list_iter){.+.+}, at: nouveau_display_fini+0x96/0x170 [nouveau] [ 861.548146] 1 lock held by dmesg/983: [ 861.548889] 2 locks held by zsh/1250: [ 861.549605] #0: 00000000348e3cf6 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x37/0x40 [ 861.550393] #1: 000000007009a7a8 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0xc1/0x870 [ 861.551122] 6 locks held by kworker/6:0/1329: [ 861.551957] #0: 000000002dbf8af5 ((wq_completion)"events"){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.552765] #1: 00000000ddb499ad ((work_completion)(&notify->work)#2){+.+.}, at: process_one_work+0x1b3/0x620 [ 861.553582] #2: 000000006e013cbe (&dev->mode_config.mutex){+.+.}, at: drm_helper_hpd_irq_event+0x6c/0x120 [drm_kms_helper] [ 861.554357] #3: 000000004afc5de1 (drm_connector_list_iter){.+.+}, at: drm_helper_hpd_irq_event+0x78/0x120 [drm_kms_helper] [ 861.555227] #4: 0000000044f294d9 (crtc_ww_class_acquire){+.+.}, at: drm_helper_probe_detect_ctx+0x3d/0x100 [drm_kms_helper] [ 861.556133] #5: 00000000db193642 (crtc_ww_class_mutex){+.+.}, at: drm_modeset_lock+0x4b/0x130 [drm] [ 861.557864] ============================================= [ 861.559507] NMI backtrace for cpu 2 [ 861.560363] CPU: 2 PID: 64 Comm: khungtaskd Tainted: G O 4.18.0-rc6Lyude-Test+ #1 [ 861.561197] Hardware name: LENOVO 20EQS64N0B/20EQS64N0B, BIOS N1EET78W (1.51 ) 05/18/2018 [ 861.561948] Call Trace: [ 861.562757] dump_stack+0x8e/0xd3 [ 861.563516] nmi_cpu_backtrace.cold.3+0x14/0x5a [ 861.564269] ? lapic_can_unplug_cpu.cold.27+0x42/0x42 [ 861.565029] nmi_trigger_cpumask_backtrace+0xa1/0xae [ 861.565789] arch_trigger_cpumask_backtrace+0x19/0x20 [ 861.566558] watchdog+0x316/0x580 [ 861.567355] kthread+0x12b/0x150 [ 861.568114] ? reset_hung_task_detector+0x20/0x20 [ 861.568863] ? kthread_create_worker_on_cpu+0x70/0x70 [ 861.569598] ret_from_fork+0x3a/0x50 [ 861.570370] Sending NMI from CPU 2 to CPUs 0-1,3-7: [ 861.571426] NMI backtrace for cpu 6 skipped: idling at intel_idle+0x7f/0x120 [ 861.571429] NMI backtrace for cpu 7 skipped: idling at intel_idle+0x7f/0x120 [ 861.571432] NMI backtrace for cpu 3 skipped: idling at intel_idle+0x7f/0x120 [ 861.571464] NMI backtrace for cpu 5 skipped: idling at intel_idle+0x7f/0x120 [ 861.571467] NMI backtrace for cpu 0 skipped: idling at intel_idle+0x7f/0x120 [ 861.571469] NMI backtrace for cpu 4 skipped: idling at intel_idle+0x7f/0x120 [ 861.571472] NMI backtrace for cpu 1 skipped: idling at intel_idle+0x7f/0x120 [ 861.572428] Kernel panic - not syncing: hung_task: blocked tasks So: fix this by making it so that normal hotplug handling /only/ happens so long as the GPU is currently awake without any pending runtime PM requests. In the event that a hotplug occurs while the device is suspending or resuming, we can simply defer our response until the GPU is fully runtime resumed again. Changes since v5: - Use a new trick I came up with using pm_runtime_get() instead of the hackish junk we had before Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_connector.c | 22 +++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 010d6db14cba..109240c03357 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1124,6 +1124,26 @@ nouveau_connector_hotplug(struct nvif_notify *notify) const struct nvif_notify_conn_rep_v0 *rep = notify->data; const char *name = connector->name; struct nouveau_encoder *nv_encoder; + int ret; + + ret = pm_runtime_get(drm->dev->dev); + if (ret == 0) { + /* We can't block here if there's a pending PM request + * running, as we'll deadlock nouveau_display_fini() when it + * calls nvif_put() on our nvif_notify struct. So, simply + * defer the hotplug event until the device finishes resuming + */ + NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n", + name); + schedule_work(&drm->hpd_work); + + pm_runtime_put_noidle(drm->dev->dev); + return NVIF_NOTIFY_KEEP; + } else if (ret != 1 && ret != -EACCES) { + NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n", + name, ret); + return NVIF_NOTIFY_DROP; + } if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) { NV_DEBUG(drm, "service %s\n", name); @@ -1141,6 +1161,8 @@ nouveau_connector_hotplug(struct nvif_notify *notify) drm_helper_hpd_irq_event(connector->dev); } + pm_runtime_mark_last_busy(drm->dev->dev); + pm_runtime_put_autosuspend(drm->dev->dev); return NVIF_NOTIFY_KEEP; } -- 2.17.1

7 years, 1 month

1
0
0 0

[PATCH v6 4/5] drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()

by Lyude Paul

It's true we can't resume the device from poll workers in nouveau_connector_detect(). We can however, prevent the autosuspend timer from elapsing immediately if it hasn't already without risking any sort of deadlock with the runtime suspend/resume operations. So do that instead of entirely avoiding grabbing a power reference. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_connector.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 2a45b4c2ceb0..010d6db14cba 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -572,12 +572,16 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) nv_connector->edid = NULL; } - /* Outputs are only polled while runtime active, so acquiring a - * runtime PM ref here is unnecessary (and would deadlock upon - * runtime suspend because it waits for polling to finish). + /* Outputs are only polled while runtime active, so resuming the + * device here is unnecessary (and would deadlock upon runtime suspend + * because it waits for polling to finish). We do however, want to + * prevent the autosuspend timer from elapsing during this operation + * if possible. */ - if (!drm_kms_helper_is_poll_worker()) { - ret = pm_runtime_get_sync(connector->dev->dev); + if (drm_kms_helper_is_poll_worker()) { + pm_runtime_get_noresume(dev->dev); + } else { + ret = pm_runtime_get_sync(dev->dev); if (ret < 0 && ret != -EACCES) return conn_status; } @@ -655,10 +659,8 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) out: - if (!drm_kms_helper_is_poll_worker()) { - pm_runtime_mark_last_busy(connector->dev->dev); - pm_runtime_put_autosuspend(connector->dev->dev); - } + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); return conn_status; } -- 2.17.1

7 years, 1 month

1
0
0 0

[PATCH v6 2/5] drm/nouveau: Remove duplicate poll_enable() in pmops_runtime_suspend()

by Lyude Paul

Since actual hotplug notifications don't get disabled until nouveau_display_fini() is called, all this will do is cause any hotplugs that happen between this drm_kms_helper_poll_disable() call and the actual hotplug disablement to potentially be dropped if ACPI isn't around to help us. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_drm.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index c7ec86d6c3c9..5fdc1fbe2ee5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -835,7 +835,6 @@ nouveau_pmops_runtime_suspend(struct device *dev) return -EBUSY; } - drm_kms_helper_poll_disable(drm_dev); nouveau_switcheroo_optimus_dsm(); ret = nouveau_do_suspend(drm_dev, true); pci_save_state(pdev); -- 2.17.1

7 years, 1 month

1
0
0 0

[PATCH v6 1/5] drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement

by Lyude Paul

Turns out this part is my fault for not noticing when reviewing 9a2eba337cace ("drm/nouveau: Fix drm poll_helper handling"). Currently we call drm_kms_helper_poll_enable() from nouveau_display_hpd_work(). This makes basically no sense however, because that means we're calling drm_kms_helper_poll_enable() every time we schedule the hotplug detection work. This is also against the advice mentioned in drm_kms_helper_poll_enable()'s documentation: Note that calls to enable and disable polling must be strictly ordered, which is automatically the case when they're only call from suspend/resume callbacks. Of course, hotplugs can't really be ordered. They could even happen immediately after we called drm_kms_helper_poll_disable() in nouveau_display_fini(), which can lead to all sorts of issues. Additionally; enabling polling /after/ we call drm_helper_hpd_irq_event() could also mean that we'd miss a hotplug event anyway, since drm_helper_hpd_irq_event() wouldn't bother trying to probe connectors so long as polling is disabled. So; simply move this back into nouveau_display_init() again. The race condition that both of these patches attempted to work around has already been fixed properly in d61a5c106351 ("drm/nouveau: Fix deadlock on runtime suspend") Fixes: 9a2eba337cace ("drm/nouveau: Fix drm poll_helper handling") Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Peter Ujfalusi <peter.ujfalusi(a)ti.com> Cc: stable(a)vger.kernel.org --- drivers/gpu/drm/nouveau/nouveau_display.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index ec7861457b84..1d36ab5d4796 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -355,8 +355,6 @@ nouveau_display_hpd_work(struct work_struct *work) pm_runtime_get_sync(drm->dev->dev); drm_helper_hpd_irq_event(drm->dev); - /* enable polling for external displays */ - drm_kms_helper_poll_enable(drm->dev); pm_runtime_mark_last_busy(drm->dev->dev); pm_runtime_put_sync(drm->dev->dev); @@ -411,6 +409,11 @@ nouveau_display_init(struct drm_device *dev) if (ret) return ret; + /* enable connector detection and polling for connectors without HPD + * support + */ + drm_kms_helper_poll_enable(dev); + /* enable hotplug interrupts */ drm_connector_list_iter_begin(dev, &conn_iter); nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { -- 2.17.1

7 years, 1 month

1
0
0 0

[PATCH 2/2] net: socket: Fix potential spectre v1 gadget in sock_is_registered

by Jeremy Cline

'family' can be a user-controlled value, so sanitize it after the bounds check to avoid speculative out-of-bounds access. Cc: Josh Poimboeuf <jpoimboe(a)redhat.com> Cc: stable(a)vger.kernel.org Signed-off-by: Jeremy Cline <jcline(a)redhat.com> --- net/socket.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/socket.c b/net/socket.c index f15d5cbb3ba4..608e29ae6baf 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2672,7 +2672,8 @@ EXPORT_SYMBOL(sock_unregister); bool sock_is_registered(int family) { - return family < NPROTO && rcu_access_pointer(net_families[family]); + return family < NPROTO && + rcu_access_pointer(net_families[array_index_nospec(family, NPROTO)]); } static int __init sock_init(void) -- 2.17.1

7 years, 1 month

2
4
0 0

[PATCH v2 1/2] block: Introduce alloc_disk_node_attr()

by Bart Van Assche

This patch does not change the behavior of any existing code but introduces a function that will be used by the next patch. Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Cc: Keith Busch <keith.busch(a)intel.com> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Sagi Grimberg <sagi(a)grimberg.me> Cc: Matias Bjorling <mb(a)lightnvm.io> Cc: <stable(a)vger.kernel.org> --- block/genhd.c | 26 ++++++++++++++++++++++++-- include/linux/genhd.h | 13 +++++++++++-- 2 files changed, 35 insertions(+), 4 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 8cc719a37b32..3b643152907d 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1413,10 +1413,20 @@ dev_t blk_lookup_devt(const char *name, int partno) } EXPORT_SYMBOL(blk_lookup_devt); -struct gendisk *__alloc_disk_node(int minors, int node_id) +/** + * __alloc_disk_node - allocate a gendisk structure and initialize it + * @minors: number of partitions to allocate memory for + * @node_id: NUMA node to allocate memory from + * @ag: NULL or pointer to a NULL-terminated array with attribute groups that + * must be attached to the disk_to_dev() of the allocated disk structure + */ +struct gendisk *__alloc_disk_node(int minors, int node_id, + const struct attribute_group **ag) { struct gendisk *disk; struct disk_part_tbl *ptbl; + const struct attribute_group **agp; + int num_groups = 0; if (minors > DISK_MAX_PARTS) { printk(KERN_ERR @@ -1425,7 +1435,15 @@ struct gendisk *__alloc_disk_node(int minors, int node_id) minors = DISK_MAX_PARTS; } - disk = kzalloc_node(sizeof(struct gendisk), GFP_KERNEL, node_id); + if (ag) { + for (agp = ag; *agp; agp++) + num_groups++; + /* Only count the terminating NULL if the array is not empty. */ + if (num_groups) + num_groups++; + } + disk = kzalloc_node(struct_size(disk, ag, num_groups), GFP_KERNEL, + node_id); if (disk) { if (!init_part_stats(&disk->part0)) { kfree(disk); @@ -1461,6 +1479,10 @@ struct gendisk *__alloc_disk_node(int minors, int node_id) rand_initialize_disk(disk); disk_to_dev(disk)->class = &block_class; disk_to_dev(disk)->type = &disk_type; + if (num_groups) { + memcpy(disk->ag, ag, num_groups * sizeof(ag)); + disk_to_dev(disk)->groups = disk->ag; + } device_initialize(disk_to_dev(disk)); } return disk; diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 57864422a2c8..50ab6cf77fdf 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -211,6 +211,11 @@ struct gendisk { int node_id; struct badblocks *bb; struct lockdep_map lockdep_map; + /* + * Storage space for NULL-terminated attribute group array for + * disk_to_dev() of this gendisk structure. + */ + const struct attribute_group *ag[0]; }; static inline struct gendisk *part_to_disk(struct hd_struct *part) @@ -608,7 +613,8 @@ extern void __delete_partition(struct percpu_ref *); extern void delete_partition(struct gendisk *, int); extern void printk_all_partitions(void); -extern struct gendisk *__alloc_disk_node(int minors, int node_id); +extern struct gendisk *__alloc_disk_node(int minors, int node_id, + const struct attribute_group **ag); extern struct kobject *get_disk_and_module(struct gendisk *disk); extern void put_disk(struct gendisk *disk); extern void put_disk_and_module(struct gendisk *disk); @@ -634,6 +640,9 @@ extern ssize_t part_fail_store(struct device *dev, #endif /* CONFIG_FAIL_MAKE_REQUEST */ #define alloc_disk_node(minors, node_id) \ + alloc_disk_node_attr(minors, node_id, NULL) + +#define alloc_disk_node_attr(minors, node_id, ag) \ ({ \ static struct lock_class_key __key; \ const char *__name; \ @@ -641,7 +650,7 @@ extern ssize_t part_fail_store(struct device *dev, \ __name = "(gendisk_completion)"#minors"("#node_id")"; \ \ - __disk = __alloc_disk_node(minors, node_id); \ + __disk = __alloc_disk_node(minors, node_id, ag); \ \ if (__disk) \ lockdep_init_map(&__disk->lockdep_map, __name, &__key, 0); \ -- 2.18.0

7 years, 1 month

2
1
0 0

[PATCH 0/3 stable 4.9] proc/sysctl: prune stale dentries during unregistering

by Mike Rapoport

Hi, These patches fix a memory leak in per-cpu areas in v4.9.y The following command sequence while :; do c=$(docker create busybox) docker start $c docker stop $c docker rm $c done causes the number of pcpu_get_vm_area entries in /proc/vmallocinfo to grow. The commit d6cffbbe9a7e ("proc/sysctl: prune stale dentries during unregistering") fixes the issue and the commits ace0c791e6c3 ("proc/sysctl: Don't grab i_lock under sysctl_lock.") and 2fd1d2c4ceb2 ("proc: Fix proc_sys_prune_dcache to hold a sb reference") are the follow-up fixups. I've also checked v4.4 and the issue does not appear there. Eric W. Biederman (2): proc/sysctl: Don't grab i_lock under sysctl_lock. proc: Fix proc_sys_prune_dcache to hold a sb reference Konstantin Khlebnikov (1): proc/sysctl: prune stale dentries during unregistering fs/proc/inode.c | 3 +- fs/proc/internal.h | 7 +++-- fs/proc/proc_sysctl.c | 83 +++++++++++++++++++++++++++++++++++++++----------- include/linux/sysctl.h | 1 + 4 files changed, 74 insertions(+), 20 deletions(-) -- 2.7.4

7 years, 1 month

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[PATCH for-4.14.y 1/5] mtd: nand: qcom: Add a NULL check for devm_kasprintf()

by Amit Pundir

From: Fabio Estevam <fabio.estevam(a)nxp.com> commit 069f05346d01e7298939f16533953cdf52370be3 upstream. devm_kasprintf() may fail, so we should better add a NULL check and propagate an error on failure. Signed-off-by: Fabio Estevam <fabio.estevam(a)nxp.com> Signed-off-by: Boris Brezillon <boris.brezillon(a)free-electrons.com> Signed-off-by: Amit Pundir <amit.pundir(a)linaro.org> --- Cherry-picked from lede tree https://git.lede-project.org/?p=source.git Please apply it on 4.9.y as well. Not applicable for 4.4.y and 3.18.y drivers/mtd/nand/qcom_nandc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c index 3baddfc997d1..b49ca02b399d 100644 --- a/drivers/mtd/nand/qcom_nandc.c +++ b/drivers/mtd/nand/qcom_nandc.c @@ -2544,6 +2544,9 @@ static int qcom_nand_host_init(struct qcom_nand_controller *nandc, nand_set_flash_node(chip, dn); mtd->name = devm_kasprintf(dev, GFP_KERNEL, "qcom_nand.%d", host->cs); + if (!mtd->name) + return -ENOMEM; + mtd->owner = THIS_MODULE; mtd->dev.parent = dev; -- 2.7.4

7 years, 1 month

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request for 4.4-stable: d8f9cc328c88 ("IB/mlx4: Mark user MR as writable if actual virtual memory is writable")

by Sudip Mukherjee

Hi Greg, This was missing in 4.4-stable. Please apply to your queue. It will depend on 08bb558ac11a ("IB/core: Make testing MR flags for writability a static inline function") which I have sent earlier. -- Regards Sudip

7 years, 1 month

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[PATCH 1/5] Tools: hv: Fix a bug in the key delete code

by kys＠linuxonhyperv.com

From: "K. Y. Srinivasan" <kys(a)microsoft.com> Fix a bug in the key delete code - the num_records range from 0 to num_records-1. Signed-off-by: K. Y. Srinivasan <kys(a)microsoft.com> Reported-by: David Binderman <dcb314(a)hotmail.com> Cc: <stable(a)vger.kernel.org> --- tools/hv/hv_kvp_daemon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index dbf6e8bd98ba..bbb2a8ef367c 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -286,7 +286,7 @@ static int kvp_key_delete(int pool, const __u8 *key, int key_size) * Found a match; just move the remaining * entries up. */ - if (i == num_records) { + if (i == (num_records - 1)) { kvp_file_info[pool].num_records--; kvp_update_file(pool); return 0; -- 2.18.0

7 years, 1 month

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[Linux-stable-mirror] [PATCH] soc/tegra: pmc: fix child-node lookup

by Johan Hovold

Fix child-node lookup during probe, which ended up searching the whole device tree depth-first starting at the parent rather than just matching on its children. To make things worse, the parent pmc node could end up being prematurely freed as of_find_node_by_name() drops a reference to its first argument. Fixes: 3568df3d31d6 ("soc: tegra: Add thermal reset (thermtrip) support to PMC") Cc: stable <stable(a)vger.kernel.org> # 4.0 Cc: Mikko Perttunen <mperttunen(a)nvidia.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> --- drivers/soc/tegra/pmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 0453ff6839a7..7e9ef3431bea 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -1321,7 +1321,7 @@ static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc) if (!pmc->soc->has_tsense_reset) return; - np = of_find_node_by_name(pmc->dev->of_node, "i2c-thermtrip"); + np = of_get_child_by_name(pmc->dev->of_node, "i2c-thermtrip"); if (!np) { dev_warn(dev, "i2c-thermtrip node not found, %s.\n", disabled); return; -- 2.15.0

7 years, 1 month

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[PATCH v7 0/9] powerpc/pseries: Machine check handler improvements.

by Mahesh J Salgaonkar

This patch series includes some improvement to Machine check handler for pseries. Patch 1 fixes a buffer overrun issue if rtas extended error log size is greater than RTAS_ERROR_LOG_MAX. Patch 2 fixes an issue where machine check handler crashes kernel while accessing vmalloc-ed buffer while in nmi context. Patch 3 fixes endain bug while restoring of r3 in MCE handler. Patch 5 implements a real mode mce handler and flushes the SLBs on SLB error. Patch 6 display's the MCE error details on console. Patch 7 saves and dumps the SLB contents on SLB MCE errors to improve the debugability. Patch 8 adds sysctl knob for recovery action on recovered MCEs. Patch 9 consolidates mce early real mode handling code. Change in V7: - Fold Michal's patch into patch 5 - Handle MSR_RI=0 and evil context case in MC handler in patch 5. - Patch 7: Print slb cache ptr value and slb cache data. - Move patch 8 to patch 9. - Introduce patch 8 add sysctl knob for recovery action on recovered MCEs. Change in V6: - Introduce patch 8 to consolidate early real mode handling code. - Address Nick's comment on erroneous hunk. Change in V5: - Use min_t instead of max_t. - Fix an issue reported by kbuild test robot and address review comments. Change in V4: - Flush the SLBs in real mode mce handler to handle SLB errors for entry 0. - Allocate buffers per cpu to hold rtas error log and old slb contents. - Defer the logging of rtas error log to irq work queue. Change in V3: - Moved patch 5 to patch 2 Change in V2: - patch 3: Display additional info (NIP and task info) in MCE error details. - patch 5: Fix endain bug while restoring of r3 in MCE handler. --- Mahesh Salgaonkar (9): powerpc/pseries: Avoid using the size greater than RTAS_ERROR_LOG_MAX. powerpc/pseries: Defer the logging of rtas error to irq work queue. powerpc/pseries: Fix endainness while restoring of r3 in MCE handler. powerpc/pseries: Define MCE error event section. powerpc/pseries: flush SLB contents on SLB MCE errors. powerpc/pseries: Display machine check error details. powerpc/pseries: Dump the SLB contents on SLB MCE errors. powerpc/mce: Add sysctl control for recovery action on MCE. powernv/pseries: consolidate code for mce early handling. arch/powerpc/include/asm/book3s/64/mmu-hash.h | 8 + arch/powerpc/include/asm/machdep.h | 1 arch/powerpc/include/asm/mce.h | 2 arch/powerpc/include/asm/paca.h | 7 + arch/powerpc/include/asm/rtas.h | 116 ++++++++++++ arch/powerpc/kernel/exceptions-64s.S | 42 ++++ arch/powerpc/kernel/mce.c | 73 +++++++- arch/powerpc/kernel/traps.c | 3 arch/powerpc/mm/slb.c | 79 ++++++++ arch/powerpc/platforms/powernv/setup.c | 15 ++ arch/powerpc/platforms/pseries/pseries.h | 1 arch/powerpc/platforms/pseries/ras.c | 242 +++++++++++++++++++++++-- arch/powerpc/platforms/pseries/setup.c | 27 +++ 13 files changed, 588 insertions(+), 28 deletions(-) -- Signature

7 years, 1 month

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[PATCH v2 1/2] powerpc/fadump: handle crash memory ranges array index overflow

by Hari Bathini

Crash memory ranges is an array of memory ranges of the crashing kernel to be exported as a dump via /proc/vmcore file. The size of the array is set based on INIT_MEMBLOCK_REGIONS, which works alright in most cases where memblock memory regions count is less than INIT_MEMBLOCK_REGIONS value. But this count can grow beyond INIT_MEMBLOCK_REGIONS value since commit 142b45a72e22 ("memblock: Add array resizing support"). On large memory systems with a few DLPAR operations, the memblock memory regions count could be larger than INIT_MEMBLOCK_REGIONS value. On such systems, registering fadump results in crash or other system failures like below: task: c00007f39a290010 ti: c00000000b738000 task.ti: c00000000b738000 NIP: c000000000047df4 LR: c0000000000f9e58 CTR: c00000000010f180 REGS: c00000000b73b570 TRAP: 0300 Tainted: G L X (4.4.140+) MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 22004484 XER: 20000000 CFAR: c000000000008500 DAR: 000007a450000000 DSISR: 40000000 SOFTE: 0 GPR00: c0000000000f9e58 c00000000b73b7f0 c000000000f09a00 000000000000001a GPR04: c00007f3bf774c90 0000000000000004 c000000000eb9a00 0000000000000800 GPR08: 0000000000000804 000007a450000000 c000000000fa9a00 c00007ffb169ca20 GPR12: 0000000022004482 c00000000fa12c00 c00007f3a0ea97a8 0000000000000000 GPR16: c00007f3a0ea9a50 c00000000b73bd60 0000000000000118 000000000001fe80 GPR20: 0000000000000118 0000000000000000 c000000000b8c980 00000000000000d0 GPR24: 000007ffb0b10000 c00007ffb169c980 0000000000000000 c000000000b8c980 GPR28: 0000000000000004 c00007ffb169c980 000000000000001a c00007ffb169c980 NIP [c000000000047df4] smp_send_reschedule+0x24/0x80 LR [c0000000000f9e58] resched_curr+0x138/0x160 Call Trace: [c00000000b73b7f0] [c0000000000f9e58] resched_curr+0x138/0x160 (unreliable) [c00000000b73b820] [c0000000000fb538] check_preempt_curr+0xc8/0xf0 [c00000000b73b850] [c0000000000fb598] ttwu_do_wakeup+0x38/0x150 [c00000000b73b890] [c0000000000fc9c4] try_to_wake_up+0x224/0x4d0 [c00000000b73b900] [c00000000011ef34] __wake_up_common+0x94/0x100 [c00000000b73b960] [c00000000034a78c] ep_poll_callback+0xac/0x1c0 [c00000000b73b9b0] [c00000000011ef34] __wake_up_common+0x94/0x100 [c00000000b73ba10] [c00000000011f810] __wake_up_sync_key+0x70/0xa0 [c00000000b73ba60] [c00000000067c3e8] sock_def_readable+0x58/0xa0 [c00000000b73ba90] [c0000000007848ac] unix_stream_sendmsg+0x2dc/0x4c0 [c00000000b73bb70] [c000000000675a38] sock_sendmsg+0x68/0xa0 [c00000000b73bba0] [c00000000067673c] ___sys_sendmsg+0x2cc/0x2e0 [c00000000b73bd30] [c000000000677dbc] __sys_sendmsg+0x5c/0xc0 [c00000000b73bdd0] [c0000000006789bc] SyS_socketcall+0x36c/0x3f0 [c00000000b73be30] [c000000000009488] system_call+0x3c/0x100 Instruction dump: 4e800020 60000000 60420000 3c4c00ec 38421c30 7c0802a6 f8010010 60000000 3d42000a e92ab420 2fa90000 4dde0020 <e9290000> 2fa90000 419e0044 7c0802a6 ---[ end trace a6d1dd4bab5f8253 ]--- as array index overflow is not checked for while setting up crash memory ranges causing memory corruption. To resolve this issue, dynamically allocate memory for crash memory ranges and resize it incrementally, in units of pagesize, on hitting array size limit. Fixes: 2df173d9e85d ("fadump: Initialize elfcore header and add PT_LOAD program headers.") Cc: stable(a)vger.kernel.org Cc: Mahesh Salgaonkar <mahesh(a)linux.vnet.ibm.com> Signed-off-by: Hari Bathini <hbathini(a)linux.ibm.com> --- Changes in v2: * Allocating memory for crash ranges in pagesize unit. * freeing memory allocated while cleaning up. * Moved the changes to coalesce memory ranges into patch 2/2. arch/powerpc/include/asm/fadump.h | 4 +- arch/powerpc/kernel/fadump.c | 91 +++++++++++++++++++++++++++++++------ 2 files changed, 79 insertions(+), 16 deletions(-) diff --git a/arch/powerpc/include/asm/fadump.h b/arch/powerpc/include/asm/fadump.h index 5a23010..3abc738 100644 --- a/arch/powerpc/include/asm/fadump.h +++ b/arch/powerpc/include/asm/fadump.h @@ -195,8 +195,8 @@ struct fadump_crash_info_header { struct cpumask online_mask; }; -/* Crash memory ranges */ -#define INIT_CRASHMEM_RANGES (INIT_MEMBLOCK_REGIONS + 2) +/* Crash memory ranges size unit (pagesize) */ +#define CRASHMEM_RANGES_ALLOC_SIZE PAGE_SIZE struct fad_crash_memory_ranges { unsigned long long base; diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 07e8396..2ec5704 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -47,8 +47,10 @@ static struct fadump_mem_struct fdm; static const struct fadump_mem_struct *fdm_active; static DEFINE_MUTEX(fadump_mutex); -struct fad_crash_memory_ranges crash_memory_ranges[INIT_CRASHMEM_RANGES]; +struct fad_crash_memory_ranges *crash_memory_ranges; +int crash_memory_ranges_size; int crash_mem_ranges; +int max_crash_mem_ranges; /* Scan the Firmware Assisted dump configuration details. */ int __init early_init_dt_scan_fw_dump(unsigned long node, @@ -868,22 +870,67 @@ static int __init process_fadump(const struct fadump_mem_struct *fdm_active) return 0; } -static inline void fadump_add_crash_memory(unsigned long long base, - unsigned long long end) +static void free_crash_memory_ranges(void) +{ + kfree(crash_memory_ranges); + crash_memory_ranges = NULL; + crash_memory_ranges_size = 0; + max_crash_mem_ranges = 0; +} + +/* + * Allocate or reallocate crash memory ranges array in incremental units + * of CRASHMEM_RANGES_ALLOC_SIZE. + */ +static int allocate_crash_memory_ranges(void) +{ + u64 new_size; + struct fad_crash_memory_ranges *new_array; + + new_size = crash_memory_ranges_size + CRASHMEM_RANGES_ALLOC_SIZE; + pr_debug("Allocating %llu bytes of memory for crash memory ranges\n", + new_size); + + new_array = krealloc(crash_memory_ranges, new_size, GFP_KERNEL); + if (new_array == NULL) { + pr_err("Insufficient memory for setting up crash memory ranges\n"); + free_crash_memory_ranges(); + return -ENOMEM; + } + + crash_memory_ranges = new_array; + crash_memory_ranges_size = new_size; + max_crash_mem_ranges = (new_size / + sizeof(struct fad_crash_memory_ranges)); + return 0; +} + +static inline int fadump_add_crash_memory(unsigned long long base, + unsigned long long end) { if (base == end) - return; + return 0; + + if (crash_mem_ranges == max_crash_mem_ranges) { + int ret; + + ret = allocate_crash_memory_ranges(); + if (ret) + return ret; + } pr_debug("crash_memory_range[%d] [%#016llx-%#016llx], %#llx bytes\n", crash_mem_ranges, base, end - 1, (end - base)); crash_memory_ranges[crash_mem_ranges].base = base; crash_memory_ranges[crash_mem_ranges].size = end - base; crash_mem_ranges++; + return 0; } -static void fadump_exclude_reserved_area(unsigned long long start, +static int fadump_exclude_reserved_area(unsigned long long start, unsigned long long end) { + int ret = 0; unsigned long long ra_start, ra_end; ra_start = fw_dump.reserve_dump_area_start; @@ -891,15 +938,20 @@ static void fadump_exclude_reserved_area(unsigned long long start, if ((ra_start < end) && (ra_end > start)) { if ((start < ra_start) && (end > ra_end)) { - fadump_add_crash_memory(start, ra_start); - fadump_add_crash_memory(ra_end, end); + ret = fadump_add_crash_memory(start, ra_start); + if (ret) + return ret; + + ret = fadump_add_crash_memory(ra_end, end); } else if (start < ra_start) { - fadump_add_crash_memory(start, ra_start); + ret = fadump_add_crash_memory(start, ra_start); } else if (ra_end < end) { - fadump_add_crash_memory(ra_end, end); + ret = fadump_add_crash_memory(ra_end, end); } } else - fadump_add_crash_memory(start, end); + ret = fadump_add_crash_memory(start, end); + + return ret; } static int fadump_init_elfcore_header(char *bufp) @@ -939,8 +991,9 @@ static int fadump_init_elfcore_header(char *bufp) * Traverse through memblock structure and setup crash memory ranges. These * ranges will be used create PT_LOAD program headers in elfcore header. */ -static void fadump_setup_crash_memory_ranges(void) +static int fadump_setup_crash_memory_ranges(void) { + int ret; struct memblock_region *reg; unsigned long long start, end; @@ -953,7 +1006,9 @@ static void fadump_setup_crash_memory_ranges(void) * specified during fadump registration. We need to create a separate * program header for this chunk with the correct offset. */ - fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size); + ret = fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size); + if (ret) + return ret; for_each_memblock(memory, reg) { start = (unsigned long long)reg->base; @@ -973,8 +1028,12 @@ static void fadump_setup_crash_memory_ranges(void) } /* add this range excluding the reserved dump area. */ - fadump_exclude_reserved_area(start, end); + ret = fadump_exclude_reserved_area(start, end); + if (ret) + return ret; } + + return 0; } /* @@ -1095,6 +1154,7 @@ static unsigned long init_fadump_header(unsigned long addr) static int register_fadump(void) { + int ret; unsigned long addr; void *vaddr; @@ -1105,7 +1165,9 @@ static int register_fadump(void) if (!fw_dump.reserve_dump_area_size) return -ENODEV; - fadump_setup_crash_memory_ranges(); + ret = fadump_setup_crash_memory_ranges(); + if (ret) + return ret; addr = be64_to_cpu(fdm.rmr_region.destination_address) + be64_to_cpu(fdm.rmr_region.source_len); /* Initialize fadump crash info header. */ @@ -1183,6 +1245,7 @@ void fadump_cleanup(void) } else if (fw_dump.dump_registered) { /* Un-register Firmware-assisted dump if it was registered. */ fadump_unregister_dump(&fdm); + free_crash_memory_ranges(); } }

7 years, 1 month

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[PATCH v3 2/2] KVM: arm/arm64: Skip updating PTE entry if no change

by Punit Agrawal

When there is contention on faulting in a particular page table entry at stage 2, the break-before-make requirement of the architecture can lead to additional refaulting due to TLB invalidation. Avoid this by skipping a page table update if the new value of the PTE matches the previous value. Fixes: d5d8184d35c9 ("KVM: ARM: Memory virtualization setup") Signed-off-by: Punit Agrawal <punit.agrawal(a)arm.com> Reviewed-by: Suzuki Poulose <suzuki.poulose(a)arm.com> Cc: Marc Zyngier <marc.zyngier(a)arm.com> Cc: Christoffer Dall <christoffer.dall(a)arm.com> Cc: stable(a)vger.kernel.org --- virt/kvm/arm/mmu.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index 2bb0b5dba412..c2b95a22959b 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -1118,6 +1118,10 @@ static int stage2_set_pte(struct kvm *kvm, struct kvm_mmu_memory_cache *cache, /* Create 2nd stage page table mapping - Level 3 */ old_pte = *pte; if (pte_present(old_pte)) { + /* Skip page table update if there is no change */ + if (pte_val(old_pte) == pte_val(*new_pte)) + return 0; + kvm_set_pte(pte, __pte(0)); kvm_tlb_flush_vmid_ipa(kvm, addr); } else { -- 2.18.0

7 years, 1 month

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[PATCH v3 1/2] KVM: arm/arm64: Skip updating PMD entry if no change

by Punit Agrawal

Contention on updating a PMD entry by a large number of vcpus can lead to duplicate work when handling stage 2 page faults. As the page table update follows the break-before-make requirement of the architecture, it can lead to repeated refaults due to clearing the entry and flushing the tlbs. This problem is more likely when - * there are large number of vcpus * the mapping is large block mapping such as when using PMD hugepages (512MB) with 64k pages. Fix this by skipping the page table update if there is no change in the entry being updated. Fixes: ad361f093c1e ("KVM: ARM: Support hugetlbfs backed huge pages") Signed-off-by: Punit Agrawal <punit.agrawal(a)arm.com> Reviewed-by: Suzuki Poulose <suzuki.poulose(a)arm.com> Cc: Marc Zyngier <marc.zyngier(a)arm.com> Cc: Christoffer Dall <christoffer.dall(a)arm.com> Cc: stable(a)vger.kernel.org --- virt/kvm/arm/mmu.c | 38 +++++++++++++++++++++++++++----------- 1 file changed, 27 insertions(+), 11 deletions(-) diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index 1d90d79706bd..2bb0b5dba412 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -1015,19 +1015,35 @@ static int stage2_set_pmd_huge(struct kvm *kvm, struct kvm_mmu_memory_cache pmd = stage2_get_pmd(kvm, cache, addr); VM_BUG_ON(!pmd); - /* - * Mapping in huge pages should only happen through a fault. If a - * page is merged into a transparent huge page, the individual - * subpages of that huge page should be unmapped through MMU - * notifiers before we get here. - * - * Merging of CompoundPages is not supported; they should become - * splitting first, unmapped, merged, and mapped back in on-demand. - */ - VM_BUG_ON(pmd_present(*pmd) && pmd_pfn(*pmd) != pmd_pfn(*new_pmd)); - old_pmd = *pmd; if (pmd_present(old_pmd)) { + /* + * Multiple vcpus faulting on the same PMD entry, can + * lead to them sequentially updating the PMD with the + * same value. Following the break-before-make + * (pmd_clear() followed by tlb_flush()) process can + * hinder forward progress due to refaults generated + * on missing translations. + * + * Skip updating the page table if the entry is + * unchanged. + */ + if (pmd_val(old_pmd) == pmd_val(*new_pmd)) + return 0; + + /* + * Mapping in huge pages should only happen through a + * fault. If a page is merged into a transparent huge + * page, the individual subpages of that huge page + * should be unmapped through MMU notifiers before we + * get here. + * + * Merging of CompoundPages is not supported; they + * should become splitting first, unmapped, merged, + * and mapped back in on-demand. + */ + VM_BUG_ON(pmd_pfn(old_pmd) != pmd_pfn(*new_pmd)); + pmd_clear(pmd); kvm_tlb_flush_vmid_ipa(kvm, addr); } else { -- 2.18.0

7 years, 1 month

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[PATCH v2 1/2] KVM: arm/arm64: Skip updating PMD entry if no change

by Punit Agrawal

Contention on updating a PMD entry by a large number of vcpus can lead to duplicate work when handling stage 2 page faults. As the page table update follows the break-before-make requirement of the architecture, it can lead to repeated refaults due to clearing the entry and flushing the tlbs. This problem is more likely when - * there are large number of vcpus * the mapping is large block mapping such as when using PMD hugepages (512MB) with 64k pages. Fix this by skipping the page table update if there is no change in the entry being updated. Fixes: ad361f093c1e ("KVM: ARM: Support hugetlbfs backed huge pages") Change-Id: Ib417957c842ef67a6f4b786f68df62048d202c24 Signed-off-by: Punit Agrawal <punit.agrawal(a)arm.com> Cc: Marc Zyngier <marc.zyngier(a)arm.com> Cc: Christoffer Dall <christoffer.dall(a)arm.com> Cc: Suzuki Poulose <suzuki.poulose(a)arm.com> Cc: stable(a)vger.kernel.org --- virt/kvm/arm/mmu.c | 40 +++++++++++++++++++++++++++++----------- 1 file changed, 29 insertions(+), 11 deletions(-) diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index 1d90d79706bd..2ab977edc63c 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -1015,19 +1015,36 @@ static int stage2_set_pmd_huge(struct kvm *kvm, struct kvm_mmu_memory_cache pmd = stage2_get_pmd(kvm, cache, addr); VM_BUG_ON(!pmd); - /* - * Mapping in huge pages should only happen through a fault. If a - * page is merged into a transparent huge page, the individual - * subpages of that huge page should be unmapped through MMU - * notifiers before we get here. - * - * Merging of CompoundPages is not supported; they should become - * splitting first, unmapped, merged, and mapped back in on-demand. - */ - VM_BUG_ON(pmd_present(*pmd) && pmd_pfn(*pmd) != pmd_pfn(*new_pmd)); - old_pmd = *pmd; + if (pmd_present(old_pmd)) { + /* + * Mapping in huge pages should only happen through a + * fault. If a page is merged into a transparent huge + * page, the individual subpages of that huge page + * should be unmapped through MMU notifiers before we + * get here. + * + * Merging of CompoundPages is not supported; they + * should become splitting first, unmapped, merged, + * and mapped back in on-demand. + */ + VM_BUG_ON(pmd_pfn(old_pmd) != pmd_pfn(*new_pmd)); + + /* + * Multiple vcpus faulting on the same PMD entry, can + * lead to them sequentially updating the PMD with the + * same value. Following the break-before-make + * (pmd_clear() followed by tlb_flush()) process can + * hinder forward progress due to refaults generated + * on missing translations. + * + * Skip updating the page table if the entry is + * unchanged. + */ + if (pmd_val(old_pmd) == pmd_val(*new_pmd)) + goto out; + pmd_clear(pmd); kvm_tlb_flush_vmid_ipa(kvm, addr); } else { @@ -1035,6 +1052,7 @@ static int stage2_set_pmd_huge(struct kvm *kvm, struct kvm_mmu_memory_cache } kvm_set_pmd(pmd, *new_pmd); +out: return 0; } -- 2.18.0

7 years, 1 month

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[PATCH v2 2/2] KVM: arm/arm64: Skip updating PTE entry if no change

by Punit Agrawal

When there is contention on faulting in a particular page table entry at stage 2, the break-before-make requirement of the architecture can lead to additional refaulting due to TLB invalidation. Avoid this by skipping a page table update if the new value of the PTE matches the previous value. Fixes: d5d8184d35c9 ("KVM: ARM: Memory virtualization setup") Change-Id: I28e17daf394a4821b13c2cf8726bf72bf30434f9 Signed-off-by: Punit Agrawal <punit.agrawal(a)arm.com> Cc: Marc Zyngier <marc.zyngier(a)arm.com> Cc: Christoffer Dall <christoffer.dall(a)arm.com> Cc: Suzuki Poulose <suzuki.poulose(a)arm.com> Cc: stable(a)vger.kernel.org --- virt/kvm/arm/mmu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index 2ab977edc63c..d0a9dccc3793 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -1120,6 +1120,10 @@ static int stage2_set_pte(struct kvm *kvm, struct kvm_mmu_memory_cache *cache, /* Create 2nd stage page table mapping - Level 3 */ old_pte = *pte; if (pte_present(old_pte)) { + /* Skip page table update if there is no change */ + if (pte_val(old_pte) == pte_val(*new_pte)) + goto out; + kvm_set_pte(pte, __pte(0)); kvm_tlb_flush_vmid_ipa(kvm, addr); } else { @@ -1127,6 +1131,7 @@ static int stage2_set_pte(struct kvm *kvm, struct kvm_mmu_memory_cache *cache, } kvm_set_pte(pte, *new_pte); +out: return 0; } -- 2.18.0

7 years, 1 month

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FAILED: patch "[PATCH] i2c: xlp9xx: Fix case where SSIF read transaction completes" failed to apply to 4.17-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.17-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 5eb173f5c8f3a3cdc47b3952c368f10a28c81ab8 Mon Sep 17 00:00:00 2001 From: George Cherian <george.cherian(a)cavium.com> Date: Wed, 8 Aug 2018 23:36:48 -0700 Subject: [PATCH] i2c: xlp9xx: Fix case where SSIF read transaction completes early During ipmi stress tests we see occasional failure of transactions at the boot time. This happens in the case of a I2C_M_RECV_LEN transactions, when the read transfer completes (with the initial read length of 34) before the driver gets a chance to handle interrupts. The current driver code expects at least 2 interrupts for I2C_M_RECV_LEN transactions. The length is updated during the first interrupt, and the buffer contents are only copied during subsequent interrupts. In case of just one interrupt, we will complete the transaction without copying out the bytes from RX fifo. Update the code to drain the RX fifo after the length update, so that the transaction completes correctly in all cases. Signed-off-by: George Cherian <george.cherian(a)cavium.com> Signed-off-by: Wolfram Sang <wsa(a)the-dreams.de> Cc: stable(a)kernel.org diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c index 1f41a4f89c08..8a873975cf12 100644 --- a/drivers/i2c/busses/i2c-xlp9xx.c +++ b/drivers/i2c/busses/i2c-xlp9xx.c @@ -191,28 +191,43 @@ static void xlp9xx_i2c_drain_rx_fifo(struct xlp9xx_i2c_dev *priv) if (priv->len_recv) { /* read length byte */ rlen = xlp9xx_read_i2c_reg(priv, XLP9XX_I2C_MRXFIFO); + + /* + * We expect at least 2 interrupts for I2C_M_RECV_LEN + * transactions. The length is updated during the first + * interrupt, and the buffer contents are only copied + * during subsequent interrupts. If in case the interrupts + * get merged we would complete the transaction without + * copying out the bytes from RX fifo. To avoid this now we + * drain the fifo as and when data is available. + * We drained the rlen byte already, decrement total length + * by one. + */ + + len--; if (rlen > I2C_SMBUS_BLOCK_MAX || rlen == 0) { rlen = 0; /*abort transfer */ priv->msg_buf_remaining = 0; priv->msg_len = 0; - } else { - *buf++ = rlen; - if (priv->client_pec) - ++rlen; /* account for error check byte */ - /* update remaining bytes and message length */ - priv->msg_buf_remaining = rlen; - priv->msg_len = rlen + 1; + xlp9xx_i2c_update_rlen(priv); + return; } + + *buf++ = rlen; + if (priv->client_pec) + ++rlen; /* account for error check byte */ + /* update remaining bytes and message length */ + priv->msg_buf_remaining = rlen; + priv->msg_len = rlen + 1; xlp9xx_i2c_update_rlen(priv); priv->len_recv = false; - } else { - len = min(priv->msg_buf_remaining, len); - for (i = 0; i < len; i++, buf++) - *buf = xlp9xx_read_i2c_reg(priv, XLP9XX_I2C_MRXFIFO); - - priv->msg_buf_remaining -= len; } + len = min(priv->msg_buf_remaining, len); + for (i = 0; i < len; i++, buf++) + *buf = xlp9xx_read_i2c_reg(priv, XLP9XX_I2C_MRXFIFO); + + priv->msg_buf_remaining -= len; priv->msg_buf = buf; if (priv->msg_buf_remaining)

7 years, 1 month

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FAILED: patch "[PATCH] scsi: qedi: Fix a potential buffer overflow" failed to apply to 4.17-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.17-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 15d258674b5c91b9c1ae11264624d5c0d0675e8f Mon Sep 17 00:00:00 2001 From: Bart Van Assche <bart.vanassche(a)wdc.com> Date: Thu, 26 Jul 2018 14:10:37 -0700 Subject: [PATCH] scsi: qedi: Fix a potential buffer overflow Tell snprintf() to store at most 255 characters in the output buffer instead of 256. This patch avoids that smatch reports the following warning: drivers/scsi/qedi/qedi_main.c:891: qedi_get_boot_tgt_info() error: snprintf() is printing too much 256 vs 255 Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Cc: <QLogic-Storage-Upstream(a)cavium.com> Cc: <stable(a)vger.kernel.org> Acked-by: Nilesh Javali <nilesh.javali(a)cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen(a)oracle.com> diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 091ec1207bea..cff83b9457f7 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -888,7 +888,7 @@ static void qedi_get_boot_tgt_info(struct nvm_iscsi_block *block, ipv6_en = !!(block->generic.ctrl_flags & NVM_ISCSI_CFG_GEN_IPV6_ENABLED); - snprintf(tgt->iscsi_name, NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, "%s\n", + snprintf(tgt->iscsi_name, sizeof(tgt->iscsi_name), "%s\n", block->target[index].target_name.byte); tgt->ipv6_en = ipv6_en;

7 years, 1 month

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our mobile apps design

by Jack Dike

Do you need mobile apps development? We can do it for you. We are an India base company. Here are the details about us: Years in business: 8 Staffs: 125 App developed: 350 We work on Android, iOS, Ionic, and PhoneGap platforms, we have clients across different kind of industries. Such like retail, media and entertainment, BFSI, hospitality, social media, eCommerce, food and beverages, etc. We do below: Mobile Apps Mobile App UI/UX designing App Maintenance and Support Website or ecommerce portal development Please reply back if you are interested in what we do. We will share our portfolios to you. Regards, Jack

7 years, 1 month

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mobile apps for you

by Jack Dike

Do you need mobile apps development? We can do it for you. We are an India base company. Here are the details about us: Years in business: 8 Staffs: 125 App developed: 350 We work on Android, iOS, Ionic, and PhoneGap platforms, we have clients across different kind of industries. Such like retail, media and entertainment, BFSI, hospitality, social media, eCommerce, food and beverages, etc. We do below: Mobile Apps Mobile App UI/UX designing App Maintenance and Support Website or ecommerce portal development Please reply back if you are interested in what we do. We will share our portfolios to you. Regards, Jack

7 years, 1 month

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patch "tty: serial: 8250: Revert NXP SC16C2552 workaround" added to tty-next

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled tty: serial: 8250: Revert NXP SC16C2552 workaround to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. >From 47ac76662ca9c5852fd353093f19de3ae85f2e66 Mon Sep 17 00:00:00 2001 From: Mark <dmarkh(a)cfl.rr.com> Date: Sun, 12 Aug 2018 11:47:16 -0400 Subject: tty: serial: 8250: Revert NXP SC16C2552 workaround Revert commit ecb988a3b7985913d1f0112f66667cdd15e40711: tty: serial: 8250: 8250_core: NXP SC16C2552 workaround The above commit causes userland application to no longer write correctly its first write to a dumb terminal connected to /dev/ttyS0. This commit seems to be the culprit. It's as though the TX FIFO is being reset during that write. What should be displayed is: PSW 80000000 INST 00000000 HALT // What is displayed is some variation of: T 00000000 HAL// Reverting this commit via this patch fixes my problem. Signed-off-by: Mark Hounschell <dmarkh(a)cfl.rr.com> Fixes: ecb988a3b798 ("tty: serial: 8250: 8250_core: NXP SC16C2552 workaround") Cc: stable <stable(a)vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/8250/8250_port.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 8d863004c0da..3f779d25ec0c 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -90,8 +90,7 @@ static const struct serial8250_config uart_config[] = { .name = "16550A", .fifo_size = 16, .tx_loadsz = 16, - .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 | - UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT, + .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10, .rxtrig_bytes = {1, 4, 8, 14}, .flags = UART_CAP_FIFO, }, -- 2.18.0

7 years, 1 month

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the mobile apps

by Jack Dike

Do you need mobile apps development? We can do it for you. We are an India base company. Here are the details about us: Years in business: 8 Staffs: 125 App developed: 350 We work on Android, iOS, Ionic, and PhoneGap platforms, we have clients across different kind of industries. Such like retail, media and entertainment, BFSI, hospitality, social media, eCommerce, food and beverages, etc. We do below: Mobile Apps Mobile App UI/UX designing App Maintenance and Support Website or ecommerce portal development Please reply back if you are interested in what we do. We will share our portfolios to you. Regards, Jack

7 years, 1 month

1
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[PATCH v2] xtensa: limit offsets in __loop_cache_{all,page}

by Max Filippov

When building kernel for xtensa cores with big cache lines (e.g. 128 bytes or more) __loop_cache_all and __loop_cache_page may generate assembly instructions with immediate fields that are too big. This results in the following build errors: arch/xtensa/mm/misc.S: Assembler messages: arch/xtensa/mm/misc.S:464: Error: operand 2 of 'diwbi' has invalid value '256' arch/xtensa/mm/misc.S:464: Error: operand 2 of 'diwbi' has invalid value '384' arch/xtensa/kernel/head.S: Assembler messages: arch/xtensa/kernel/head.S:172: Error: operand 2 of 'diu' has invalid value '256' arch/xtensa/kernel/head.S:172: Error: operand 2 of 'diu' has invalid value '384' arch/xtensa/kernel/head.S:176: Error: operand 2 of 'iiu' has invalid value '256' arch/xtensa/kernel/head.S:176: Error: operand 2 of 'iiu' has invalid value '384' arch/xtensa/kernel/head.S:255: Error: operand 2 of 'diwb' has invalid value '256' arch/xtensa/kernel/head.S:255: Error: operand 2 of 'diwb' has invalid value '384' Add parameter max_immed to these macros and use it to limit values of immediate operands. Extract common code of these macros into the new macro __loop_cache_unroll. Cc: stable(a)vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc(a)gmail.com> --- Changes v1->v2: - use _index and _reps instead of rep and reps, rewrite assignments through .set as used in other similar cases. arch/xtensa/include/asm/cacheasm.h | 65 +++++++++++++++++++++++--------------- 1 file changed, 40 insertions(+), 25 deletions(-) diff --git a/arch/xtensa/include/asm/cacheasm.h b/arch/xtensa/include/asm/cacheasm.h index 2041abb10a23..2c73b4571226 100644 --- a/arch/xtensa/include/asm/cacheasm.h +++ b/arch/xtensa/include/asm/cacheasm.h @@ -31,16 +31,32 @@ * */ - .macro __loop_cache_all ar at insn size line_width - movi \ar, 0 + .macro __loop_cache_unroll ar at insn size line_width max_immed + + .if (1 << (\line_width)) > (\max_immed) + .set _reps, 1 + .elseif (2 << (\line_width)) > (\max_immed) + .set _reps, 2 + .else + .set _reps, 4 + .endif + + __loopi \ar, \at, \size, (_reps << (\line_width)) + .set _index, 0 + .rep _reps + \insn \ar, _index << (\line_width) + .set _index, _index + 1 + .endr + __endla \ar, \at, _reps << (\line_width) + + .endm + - __loopi \ar, \at, \size, (4 << (\line_width)) - \insn \ar, 0 << (\line_width) - \insn \ar, 1 << (\line_width) - \insn \ar, 2 << (\line_width) - \insn \ar, 3 << (\line_width) - __endla \ar, \at, 4 << (\line_width) + .macro __loop_cache_all ar at insn size line_width max_immed + + movi \ar, 0 + __loop_cache_unroll \ar, \at, \insn, \size, \line_width, \max_immed .endm @@ -57,14 +73,9 @@ .endm - .macro __loop_cache_page ar at insn line_width + .macro __loop_cache_page ar at insn line_width max_immed - __loopi \ar, \at, PAGE_SIZE, 4 << (\line_width) - \insn \ar, 0 << (\line_width) - \insn \ar, 1 << (\line_width) - \insn \ar, 2 << (\line_width) - \insn \ar, 3 << (\line_width) - __endla \ar, \at, 4 << (\line_width) + __loop_cache_unroll \ar, \at, \insn, PAGE_SIZE, \line_width, \max_immed .endm @@ -72,7 +83,8 @@ .macro ___unlock_dcache_all ar at #if XCHAL_DCACHE_LINE_LOCKABLE && XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -81,7 +93,8 @@ .macro ___unlock_icache_all ar at #if XCHAL_ICACHE_LINE_LOCKABLE && XCHAL_ICACHE_SIZE - __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE XCHAL_ICACHE_LINEWIDTH + __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE \ + XCHAL_ICACHE_LINEWIDTH 240 #endif .endm @@ -90,7 +103,8 @@ .macro ___flush_invalidate_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -99,7 +113,8 @@ .macro ___flush_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -109,7 +124,7 @@ #if XCHAL_DCACHE_SIZE __loop_cache_all \ar \at dii __stringify(DCACHE_WAY_SIZE) \ - XCHAL_DCACHE_LINEWIDTH + XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -119,7 +134,7 @@ #if XCHAL_ICACHE_SIZE __loop_cache_all \ar \at iii __stringify(ICACHE_WAY_SIZE) \ - XCHAL_ICACHE_LINEWIDTH + XCHAL_ICACHE_LINEWIDTH 1020 #endif .endm @@ -166,7 +181,7 @@ .macro ___flush_invalidate_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -175,7 +190,7 @@ .macro ___flush_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -184,7 +199,7 @@ .macro ___invalidate_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -193,7 +208,7 @@ .macro ___invalidate_icache_page ar as #if XCHAL_ICACHE_SIZE - __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH + __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH 1020 #endif .endm -- 2.11.0

7 years, 1 month

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Linux 3.18.111

by Greg KH

I'm announcing the release of the 3.18.111 kernel. All users of the 3.18 kernel series must upgrade. The updated 3.18.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.18.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Documentation/device-mapper/thin-provisioning.txt | 8 Makefile | 2 arch/alpha/include/asm/xchg.h | 30 ++- arch/arm/boot/dts/socfpga.dtsi | 2 arch/arm/mach-omap1/clock.c | 6 arch/arm/mach-omap2/pm.c | 4 arch/arm/plat-omap/dmtimer.c | 7 arch/m68k/coldfire/device.c | 12 + arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 2 arch/mips/kernel/ptrace.c | 22 +- arch/mips/kernel/ptrace32.c | 4 arch/mips/kvm/mips.c | 2 arch/mips/txx9/rbtx4939/setup.c | 4 arch/powerpc/include/asm/irq_work.h | 1 arch/powerpc/perf/core-book3s.c | 25 ++ arch/powerpc/sysdev/mpic.c | 2 arch/sh/kernel/entry-common.S | 2 arch/sparc/include/asm/atomic_64.h | 6 arch/x86/kernel/smpboot.c | 1 arch/x86/kvm/vmx.c | 20 +- arch/x86/kvm/x86.c | 7 arch/x86/power/hibernate_32.c | 2 arch/x86/power/hibernate_64.c | 2 drivers/acpi/acpi_pad.c | 3 drivers/acpi/acpica/evevent.c | 9 drivers/acpi/acpica/nseval.c | 8 drivers/acpi/processor_perflib.c | 2 drivers/ata/libata-core.c | 4 drivers/block/paride/pcd.c | 2 drivers/cdrom/cdrom.c | 3 drivers/cdrom/gdrom.c | 3 drivers/clk/samsung/clk-exynos3250.c | 4 drivers/clk/samsung/clk-exynos5250.c | 8 drivers/clk/samsung/clk-exynos5260.c | 2 drivers/clk/samsung/clk-s3c2410.c | 16 - drivers/clocksource/fsl_ftm_timer.c | 2 drivers/dma/pl330.c | 6 drivers/firewire/ohci.c | 8 drivers/firmware/dmi_scan.c | 22 -- drivers/gpu/drm/exynos/regs-fimc.h | 2 drivers/hid/hid-roccat-kovaplus.c | 2 drivers/hwmon/nct6775.c | 10 - drivers/hwmon/pmbus/adm1275.c | 4 drivers/hwmon/pmbus/max8688.c | 2 drivers/i2c/busses/i2c-mv64xxx.c | 8 drivers/ide/ide-cd.c | 2 drivers/infiniband/hw/mlx5/qp.c | 5 drivers/infiniband/ulp/ipoib/ipoib_main.c | 3 drivers/irqchip/irq-gic-v3.c | 2 drivers/md/bcache/alloc.c | 4 drivers/md/bcache/bcache.h | 2 drivers/md/bcache/btree.c | 9 drivers/md/bcache/request.c | 2 drivers/md/bcache/super.c | 23 +- drivers/md/bcache/sysfs.c | 11 - drivers/md/bcache/writeback.c | 27 ++ drivers/md/raid1.c | 11 + drivers/md/raid10.c | 6 drivers/media/dvb-core/dmxdev.c | 2 drivers/media/pci/cx23885/cx23885-cards.c | 4 drivers/media/pci/cx23885/cx23885-core.c | 10 + drivers/media/pci/cx25821/cx25821-core.c | 7 drivers/media/platform/s3c-camif/camif-capture.c | 7 drivers/media/usb/em28xx/em28xx.h | 2 drivers/message/fusion/mptctl.c | 2 drivers/net/ethernet/intel/e1000e/ich8lan.c | 2 drivers/net/ethernet/intel/e1000e/mac.c | 2 drivers/net/ethernet/intel/e1000e/netdev.c | 4 drivers/net/ethernet/marvell/mvneta.c | 1 drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 2 drivers/net/phy/dp83640.c | 18 + drivers/net/usb/qmi_wwan.c | 4 drivers/net/usb/r8152.c | 2 drivers/net/usb/smsc75xx.c | 7 drivers/net/virtio_net.c | 2 drivers/net/wireless/ath/ath10k/mac.c | 10 + drivers/parisc/lba_pci.c | 20 +- drivers/pci/pci-driver.c | 17 + drivers/pci/quirks.c | 5 drivers/regulator/of_regulator.c | 1 drivers/rtc/rtc-tx4939.c | 6 drivers/s390/cio/device_fsm.c | 7 drivers/s390/cio/io_sch.h | 1 drivers/scsi/aacraid/commsup.c | 4 drivers/scsi/aacraid/linit.c | 5 drivers/scsi/arm/fas216.c | 2 drivers/scsi/bnx2fc/bnx2fc_io.c | 1 drivers/scsi/lpfc/lpfc_attr.c | 5 drivers/scsi/lpfc/lpfc_hbadisc.c | 5 drivers/scsi/lpfc/lpfc_sli.c | 2 drivers/scsi/qla2xxx/qla_isr.c | 6 drivers/scsi/qla4xxx/ql4_def.h | 2 drivers/scsi/qla4xxx/ql4_os.c | 46 ++++ drivers/scsi/sd.c | 3 drivers/scsi/sr.c | 21 +- drivers/scsi/sym53c8xx_2/sym_hipd.c | 2 drivers/scsi/ufs/ufshcd.c | 2 drivers/staging/rtl8192u/r8192U_core.c | 2 drivers/tty/serial/arc_uart.c | 5 drivers/tty/serial/fsl_lpuart.c | 4 drivers/tty/serial/imx.c | 6 drivers/tty/serial/samsung.c | 4 drivers/tty/serial/xilinx_uartps.c | 2 drivers/usb/dwc2/core.h | 2 drivers/usb/dwc3/core.h | 2 drivers/usb/gadget/composite.c | 40 +--- drivers/usb/gadget/function/f_fs.c | 2 drivers/usb/gadget/function/f_uac2.c | 2 drivers/usb/gadget/udc/fsl_udc_core.c | 4 drivers/usb/gadget/udc/goku_udc.h | 2 drivers/usb/host/ohci-hcd.c | 3 drivers/usb/host/xhci-mem.c | 2 drivers/usb/musb/musb_core.c | 2 drivers/video/fbdev/sbuslib.c | 4 drivers/watchdog/f71808e_wdt.c | 3 drivers/watchdog/sp5100_tco.h | 2 drivers/xen/events/events_base.c | 4 drivers/xen/grant-table.c | 4 drivers/xen/swiotlb-xen.c | 2 drivers/xen/xen-acpi-processor.c | 6 drivers/xen/xenbus/xenbus_probe.c | 5 drivers/zorro/zorro.c | 12 + fs/affs/namei.c | 10 - fs/aio.c | 4 fs/btrfs/ctree.c | 12 - fs/btrfs/disk-io.c | 2 fs/btrfs/extent-tree.c | 1 fs/btrfs/inode.c | 16 - fs/btrfs/send.c | 3 fs/btrfs/tests/qgroup-tests.c | 2 fs/btrfs/tree-log.c | 12 - fs/cifs/cifssmb.c | 4 fs/dcache.c | 22 ++ fs/ecryptfs/inode.c | 3 fs/ext2/namei.c | 6 fs/ext4/namei.c | 6 fs/f2fs/namei.c | 12 - fs/jffs2/dir.c | 12 - fs/jffs2/fs.c | 1 fs/jfs/namei.c | 12 - fs/nfs/nfs4sysctl.c | 2 fs/nilfs2/namei.c | 6 fs/ocfs2/acl.c | 6 fs/ocfs2/super.c | 5 fs/ocfs2/xattr.c | 2 fs/proc/base.c | 29 ++ fs/proc/proc_sysctl.c | 3 fs/reiserfs/namei.c | 12 - fs/udf/namei.c | 6 fs/udf/super.c | 5 fs/ufs/namei.c | 6 fs/xfs/xfs_discard.c | 14 - include/asm-generic/pgtable.h | 15 + include/linux/dcache.h | 1 include/linux/suspend.h | 2 include/linux/usb/composite.h | 3 include/net/llc_conn.h | 2 include/net/mac80211.h | 2 include/net/regulatory.h | 2 include/trace/events/timer.h | 20 +- include/uapi/linux/if_ether.h | 1 kernel/audit.c | 2 kernel/debug/kdb/kdb_main.c | 27 ++ kernel/events/core.c | 3 kernel/power/power.h | 3 kernel/relay.c | 2 kernel/sched/rt.c | 2 kernel/signal.c | 4 mm/ksm.c | 28 ++ mm/mempolicy.c | 36 +++ mm/swapfile.c | 4 mm/vmscan.c | 22 +- net/batman-adv/distributed-arp-table.c | 2 net/batman-adv/fragmentation.c | 3 net/batman-adv/gateway_client.c | 3 net/batman-adv/multicast.c | 4 net/batman-adv/soft-interface.c | 8 net/bridge/netfilter/ebtables.c | 33 ++- net/core/skbuff.c | 9 net/ipv4/ip_vti.c | 2 net/ipv4/tcp_illinois.c | 2 net/ipv6/sit.c | 7 net/llc/llc_c_ac.c | 15 - net/llc/llc_conn.c | 32 ++- net/netlabel/netlabel_unlabeled.c | 10 + net/nfc/llcp_commands.c | 4 net/nfc/netlink.c | 3 scripts/kconfig/expr.c | 2 scripts/kconfig/menu.c | 1 scripts/kconfig/zconf.y | 33 ++- security/integrity/ima/ima_crypto.c | 2 security/integrity/ima/ima_main.c | 13 + sound/core/vmaster.c | 5 sound/soc/au1x/ac97c.c | 6 tools/lib/traceevent/parse-filter.c | 10 - tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc | 46 ++++ tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc | 97 ++++++++++ tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc | 43 ++++ tools/testing/selftests/memfd/config | 1 tools/thermal/tmon/sysfs.c | 12 - tools/thermal/tmon/tmon.c | 1 201 files changed, 1218 insertions(+), 395 deletions(-) Al Viro (3): affs_lookup(): close a race with affs_remove_link() aio: fix io_destroy(2) vs. lookup_ioctx() race do d_instantiate/unlock_new_inode combinations safely Alex Estrin (1): IB/ipoib: Fix for potential no-carrier state Alex Williamson (1): PCI: Add function 1 DMA alias quirk for Marvell 9128 Alexey Dobriyan (1): proc: fix /proc/*/map_files lookup Anders Roxell (1): selftests: memfd: add config fragment for fuse Andrea Parri (2): locking/xchg/alpha: Add unconditional memory barrier to cmpxchg() locking/xchg/alpha: Fix xchg() and cmpxchg() memory ordering bugs Andrzej Hajda (4): clk: samsung: s3c2410: Fix PLL rates clk: samsung: exynos5260: Fix PLL rates clk: samsung: exynos5250: Fix PLL rates clk: samsung: exynos3250: Fix PLL rates Anna-Maria Gleixner (1): tracing/hrtimer: Fix tracing bugs by taking all clock bases and modes into account Arnd Bergmann (4): scsi: fas216: fix sense buffer initialization x86/power: Fix swsusp_arch_resume prototype cifs: silence compiler warnings showing up with gcc-8.0.0 media: s3c-camif: fix out-of-bounds array access Arvind Yadav (1): xen: xenbus: use put_device() instead of kfree() Bart Van Assche (1): scsi: qla2xxx: Avoid triggering undefined behavior in qla2x00_mbx_completion() Benjamin Poirier (1): e1000e: Fix check_for_link return value with autoneg off Brad Love (3): media: cx23885: Override 888 ImpactVCBe crystal frequency media: cx23885: Set subdev host data to clk_freq pointer media: em28xx: USB bulk packet size fix Carlos Maiolino (1): Force log to disk before reading the AGF during a fstrim Chad Dupuis (1): scsi: bnx2fc: Fix check in SCSI completion handler for timed out request Chen Yu (1): ACPI: processor_perflib: Do not send _PPC change notification if not ready Chris Dickens (1): usb: gadget: composite: fix incorrect handling of OS desc requests Christophe JAILLET (1): regulator: of: Add a missing 'of_node_put()' in an error handling path of 'of_regulator_match()' Claudio Imbrenda (1): mm/ksm: fix interaction with THP Colin Ian King (5): KVM: Fix spelling mistake: "cop_unsuable" -> "cop_unusable" clocksource/drivers/fsl_ftm_timer: Fix error return checking staging: rtl8192u: return -ENOMEM on failed allocation of priv->oldaddr rtc: tx4939: avoid unintended sign extension on a 24 bit shift media: cx25821: prevent out-of-bounds read on array card Coly Li (2): bcache: properly set task state in bch_writeback_thread() bcache: quit dc->writeback_thread when BCACHE_DEV_DETACHING is set Cong Wang (1): llc: properly handle dev_queue_xmit() return value Dan Carpenter (5): ASoC: au1x: Fix timeout tests in au1xac97c_ac97_read() HID: roccat: prevent an out of bounds read in kovaplus_profile_activated() scsi: sym53c8xx_2: iterator underflow in sym_getsync() scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo() xen/acpi: off by one in read_acpi_id() Danilo Krummrich (1): fs/proc/proc_sysctl.c: fix potential page fault while unregistering sysctl table Dave Carroll (1): scsi: aacraid: Insure command thread is not recursively stopped David Rientjes (1): kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE David S. Miller (1): sparc64: Make atomic_xchg() an inline function rather than a macro. Davidlohr Bueso (1): sched/rt: Fix rq->clock_update_flags < RQCF_ACT_SKIP warning Eric Dumazet (2): smsc75xx: fix smsc75xx_set_features() r8152: fix tx packets accounting Erik Schmauss (1): ACPICA: Events: add a return on failure from acpi_hw_register_read Esben Haabendal (1): dp83640: Ensure against premature access to PHY registers after reset Felix Fietkau (1): mac80211: round IEEE80211_TX_STATUS_HEADROOM up to multiple of 4 Filipe Manana (2): Btrfs: send, fix issuing write op when processing hole in no data mode Btrfs: fix copy_items() return value when logging an inode Florian Westphal (2): netfilter: ebtables: convert BUG_ONs to WARN_ONs netfilter: ebtables: fix erroneous reject of last rule Frank Asseg (1): tools/thermal: tmon: fix for segfault Fredrik Noring (1): USB: OHCI: Fix NULL dereference in HCDs using HCD_LOCAL_MEM Geert Uytterhoeven (6): ARM: OMAP1: clock: Fix debugfs_create_*() usage serial: xuartps: Fix out-of-bounds access through DT alias serial: samsung: Fix out-of-bounds access through serial port index serial: imx: Fix out-of-bounds access through serial port index serial: fsl_lpuart: Fix out-of-bounds access through DT alias serial: arc_uart: Fix out-of-bounds access through DT alias Giuseppe Lippolis (1): net-usb: add qmi_wwan if on lte modem wistron neweb d18q1 Greg Kroah-Hartman (1): Linux 3.18.111 Greg Ungerer (1): m68k: set dma and coherent masks for platform FEC ethernets Gregory CLEMENT (1): i2c: mv64xxx: Apply errata delay only in standard mode Grigor Tovmasyan (1): usb: dwc2: Fix interval type issue Guenter Roeck (4): watchdog: sp5100_tco: Fix watchdog disable bit hwmon: (nct6775) Fix writing pwmX_mode hwmon: (pmbus/max8688) Accept negative page register values hwmon: (pmbus/adm1275) Accept negative page register values Hector Martin (1): firewire-ohci: work around oversized DMA reads on JMicron controllers Helge Deller (1): parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode Huang Ying (1): mm: fix races between address_space dereference and free in page_evicatable Igor Pylypiv (1): watchdog: f71808e_wdt: Fix magic close handling Jake Daryll Obina (1): jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path James Smart (3): scsi: lpfc: Fix issue_lip if link is disabled scsi: lpfc: Fix soft lockup in lpfc worker thread during LIP testing scsi: lpfc: Fix frequency of Release WQE CQEs Jan Chochol (1): nfs: Do not convert nfs_idmap_cache_timeout to jiffies Jan Kara (1): udf: Provide saner default for invalid uid / gid Jay Vosburgh (1): virtio-net: Fix operstate for virtio when no VIRTIO_NET_F_STATUS Jean Delvare (1): firmware: dmi_scan: Fix handling of empty DMI strings Jeff Mahoney (1): btrfs: fix lockdep splat in btrfs_alloc_subvolume_writers Jens Axboe (1): sr: get/drop reference to device in revalidate and check_events Jeremy Cline (1): scsi: sd: Keep disk read-only when re-reading partition Joe Jin (1): xen-swiotlb: fix the check condition for xen_swiotlb_free_coherent Joey Pabalinas (1): net/tcp/illinois: replace broken algorithm reference link Johannes Berg (1): regulatory: add NUL to request alpha2 John Keeping (1): usb: gadget: f_uac2: fix bFirstInterface in composite gadget Karthikeyan Periyasamy (1): ath10k: Fix kernel panic while using worker (ath10k_sta_rc_update_wk) Kees Cook (1): NFC: llcp: Limit size of SDP URI Kirill A. Shutemov (1): asm-generic: provide generic_pmdp_establish() Lars-Peter Clausen (1): usb: gadget: ffs: Let setup() return USB_GADGET_DELAYED_STATUS Lenny Szubowicz (1): ACPI: acpi_pad: Fix memory leak in power saving threads Leon Romanovsky (2): RDMA/mlx5: Avoid memory leak in case of XRCD dealloc failure net/mlx5: Protect from command bit overflow Linus Lüssing (2): batman-adv: fix multicast-via-unicast transmission with AP isolation batman-adv: fix packet loss for broadcasted DHCP packets to a server Liu Bo (2): Btrfs: bail out on error during replay_dir_deletes Btrfs: fix NULL pointer dereference in log_dir_items Maciej W. Rozycki (2): MIPS: ptrace: Expose FIR register through FP regset MIPS: Fix ptrace(2) PTRACE_PEEKUSR and PTRACE_POKEUSR accesses to o32 FGRs Madhavan Srinivasan (1): powerpc/perf: Prevent kernel address leak to userspace via BHRB buffer Manish Rangankar (1): scsi: qla4xxx: skip error recovery in case of register disconnect. Mark Salter (1): irqchip/gic-v3: Change pr_debug message to pr_devel Masami Hiramatsu (3): selftests: ftrace: Add probe event argument syntax testcase selftests: ftrace: Add a testcase for string type with kprobe_event selftests: ftrace: Add a testcase for probepoint Mathias Kresin (1): MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset Mathias Nyman (1): xhci: zero usb device slot_id member when disabling and freeing a xhci slot Mathieu Malaterre (1): powerpc: Add missing prototype for arch_irq_work_raise() Matt Redfearn (1): MIPS: TXx9: use IS_BUILTIN() for CONFIG_LEDS_CLASS Matthias Schiffer (3): batman-adv: fix packet checksum in receive path batman-adv: invalidate checksum on fragment reassembly batman-adv: fix header size check in batadv_dbg_arp() Maurizio Lombardi (1): cdrom: do not call check_disk_change() inside cdrom_open() Mauro Carvalho Chehab (1): media: dmxdev: fix error code for invalid ioctls Meelis Roos (1): scsi: aacraid: fix shutdown crash when init fails Mel Gorman (1): mm: pin address_space before dereferencing it while isolating an LRU page Merlijn Wajer (1): usb: musb: call pm_runtime_{get,put}_sync before reading vbus registers Michael Ellerman (2): powerpc/mpic: Check if cpu_possible() in mpic_physmask() powerpc/perf: Fix kernel address leak via sampling registers Michael Schmitz (1): zorro: Set up z->dev.dma_mask for the DMA API Nikolay Borisov (2): btrfs: Fix out of bounds access in btrfs_search_slot btrfs: Fix possible softlock on single core machines Paolo Bonzini (1): kvm: x86: fix KVM_XEN_HVM_CONFIG ioctl Pawel Dembicki (1): net: qmi_wwan: add BroadMobi BM806U 2020:2033 Peter Malone (1): fbdev: Fixing arbitrary kernel leak in case FBIOGETCMAP_SPARC in sbusfb_ioctl_helper(). Peter Zijlstra (1): perf/core: Fix perf_output_read_group() Petr Vorel (1): ima: Fallback to the builtin hash algorithm Philipp Puschmann (1): arm: dts: socfpga: fix GIC PPI warning Pierre-Yves Kerbrat (1): e1000e: allocate ring descriptors with dma_zalloc_coherent Qi Hou (1): dmaengine: pl330: fix a race condition in case of threaded irqs Qu Wenruo (1): btrfs: tests/qgroup: Fix wrong tree backref level Rafael J. Wysocki (1): PCI: Restore config space on runtime resume despite being unbound Randy Dunlap (1): kdb: make "mdr" command repeat Rich Felker (1): sh: fix debug trap failure to process signals before return to user Richard Guy Briggs (1): audit: return on memory error to avoid null pointer dereference Richard Haines (1): netlabel: If PF_INET6, check sk_buff ip header version Roger Pau Monne (1): xen/pirq: fix error path cleanup when binding MSIs Ross Lagerwall (1): xen/grant-table: Use put_page instead of free_page Samuel Neves (1): x86/topology: Update the 'cpu cores' field in /proc/cpuinfo correctly across CPU hotplug operations Sean Christopherson (1): KVM: VMX: raise internal error for exception during invalid protected mode state Sebastian Ott (2): s390/cio: fix return code after missing interrupt s390/cio: clear timer when terminating driver I/O Seunghun Han (1): ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c Stefan Agner (1): usb: gadget: fsl_udc_core: fix ep valid checks Stefano Brivio (2): vti4: Don't count header length twice on tunnel setup vti4: Don't override MTU passed on link creation via IFLA_MTU Steven Rostedt (VMware) (1): tools lib traceevent: Fix get_field_str() for dynamic strings Sujit Reddy Thumma (1): scsi: ufs: Enable quirk to ignore sending WRITE_SAME command Takashi Iwai (1): ALSA: vmaster: Propagate slave error Tang Junhui (4): bcache: fix for allocator and register thread race bcache: fix for data collapse after re-attaching an attached device bcache: return attach error when no cache set exist bcache: fix kcrashes with fio in RAID5 backend dev Tejun Heo (1): libata: Blacklist some Sandisk SSDs for NCQ Thinh Nguyen (1): usb: dwc3: Update DWC_usb31 GTXFIFOSIZ reg fields Thomas Vincent-Cross (1): PCI: Add function 1 DMA alias quirk for Marvell 88SE9220 Tom Abraham (1): swap: divide-by-zero when zero length swap file on ssd Tony Lindgren (2): ARM: OMAP3: Fix prm wake interrupt for resume ARM: OMAP: Fix dmtimer init for omap1 Toshiaki Makita (2): net: Fix vlan untag for bridge and vlan_dev with reorder_hdr off net: Fix untag for vlan packets without ethernet header Ulf Magnusson (3): kconfig: Don't leak main menus during parsing kconfig: Fix automatic menu creation mem leak kconfig: Fix expr_free() E_NOT leak Wolfram Sang (2): drm/exynos: fix comparison to bitshift when dealing with a mask usb: gadget: udc: change comparison to bitshift when dealing with a mask Xin Long (1): sit: fix IFLA_MTU ignored on NEWLINK Yelena Krivosheev (1): net: mvneta: fix enable of all initialized RXQs Yisheng Xie (3): mm/mempolicy: fix the check of nodemask from user mm/mempolicy: add nodes_empty check in SYSC_migrate_pages mm/mempolicy.c: avoid use uninitialized preferred_node Yufen Yu (2): md raid10: fix NULL deference in handle_write_completed() md/raid1: fix NULL pointer dereference mulhern (1): dm thin: fix documentation relative to low water mark threshold piaojun (2): ocfs2: return -EROFS to mount.ocfs2 if inode block is invalid ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute zhongjiang (1): kernel/signal.c: avoid undefined behaviour in kill_something_info

7 years, 1 month

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FAILED: patch "[PATCH] IB/core: Make testing MR flags for writability a static" failed to apply to 4.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 08bb558ac11ab944e0539e78619d7b4c356278bd Mon Sep 17 00:00:00 2001 From: Jack Morgenstein <jackm(a)dev.mellanox.co.il> Date: Wed, 23 May 2018 15:30:30 +0300 Subject: [PATCH] IB/core: Make testing MR flags for writability a static inline function Make the MR writability flags check, which is performed in umem.c, a static inline function in file ib_verbs.h This allows the function to be used by low-level infiniband drivers. Cc: <stable(a)vger.kernel.org> Signed-off-by: Jason Gunthorpe <jgg(a)mellanox.com> Signed-off-by: Jack Morgenstein <jackm(a)dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leonro(a)mellanox.com> diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index 2b6c9b516070..d76455edd292 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -119,16 +119,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, umem->length = size; umem->address = addr; umem->page_shift = PAGE_SHIFT; - /* - * We ask for writable memory if any of the following - * access flags are set. "Local write" and "remote write" - * obviously require write access. "Remote atomic" can do - * things like fetch and add, which will modify memory, and - * "MW bind" can change permissions by binding a window. - */ - umem->writable = !!(access & - (IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE | - IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_MW_BIND)); + umem->writable = ib_access_writable(access); if (access & IB_ACCESS_ON_DEMAND) { ret = ib_umem_odp_get(context, umem, access); diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 9fc8a825aa28..20fa5c591e81 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -3734,6 +3734,20 @@ static inline int ib_check_mr_access(int flags) return 0; } +static inline bool ib_access_writable(int access_flags) +{ + /* + * We have writable memory backing the MR if any of the following + * access flags are set. "Local write" and "remote write" obviously + * require write access. "Remote atomic" can do things like fetch and + * add, which will modify memory, and "MW bind" can change permissions + * by binding a window. + */ + return access_flags & + (IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_WRITE | + IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_MW_BIND); +} + /** * ib_check_mr_status: lightweight check of MR status. * This routine may provide status checks on a selected

7 years, 1 month

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patch "Revert NXP SC16C2552 workaround" added to tty-testing

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled Revert NXP SC16C2552 workaround to my tty git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git in the tty-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the tty-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From 09c46f3f2f82df132e97ee21702e7a31d6143ed6 Mon Sep 17 00:00:00 2001 From: Mark <dmarkh(a)cfl.rr.com> Date: Sun, 12 Aug 2018 11:47:16 -0400 Subject: Revert NXP SC16C2552 workaround Revert commit ecb988a3b7985913d1f0112f66667cdd15e40711: tty: serial: 8250: 8250_core: NXP SC16C2552 workaround The above commit causes userland application to no longer write correctly its first write to a dumb terminal connected to /dev/ttyS0. This commit seems to be the culprit. It's as though the TX FIFO is being reset during that write. What should be displayed is: PSW 80000000 INST 00000000 HALT // What is displayed is some variation of: T 00000000 HAL// Reverting this commit via this patch fixes my problem. Signed-off-by: Mark Hounschell <dmarkh(a)cfl.rr.com> Fixes: ecb988a3b798 ("tty: serial: 8250: 8250_core: NXP SC16C2552 workaround") Cc: stable <stable(a)vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/tty/serial/8250/8250_port.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 8d863004c0da..3f779d25ec0c 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -90,8 +90,7 @@ static const struct serial8250_config uart_config[] = { .name = "16550A", .fifo_size = 16, .tx_loadsz = 16, - .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 | - UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT, + .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10, .rxtrig_bytes = {1, 4, 8, 14}, .flags = UART_CAP_FIFO, }, -- 2.18.0

7 years, 1 month

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FAILED: patch "[PATCH] ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM" failed to apply to 4.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From fdcb613d49321b5bf5d5a1bd0fba8e7c241dcc70 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hdegoede(a)redhat.com> Date: Thu, 26 Apr 2018 14:10:24 +0200 Subject: [PATCH] ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices The LPSS PWM device on on Bay Trail and Cherry Trail devices has a set of private registers at offset 0x800, the current lpss_device_desc for them already sets the LPSS_SAVE_CTX flag to have these saved/restored over device-suspend, but the current lpss_device_desc was not setting the prv_offset field, leading to the regular device registers getting saved/restored instead. This is causing the PWM controller to no longer work, resulting in a black screen, after a suspend/resume on systems where the firmware clears the APB clock and reset bits at offset 0x804. This commit fixes this by properly setting prv_offset to 0x800 for the PWM devices. Cc: stable(a)vger.kernel.org Fixes: e1c748179754 ("ACPI / LPSS: Add Intel BayTrail ACPI mode PWM") Fixes: 1bfbd8eb8a7f ("ACPI / LPSS: Add ACPI IDs for Intel Braswell") Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> Acked-by: Rafael J . Wysocki <rjw(a)rjwysocki.net> Signed-off-by: Thierry Reding <thierry.reding(a)gmail.com> diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 2bcffec8dbf0..c4ba9164e582 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -229,11 +229,13 @@ static const struct lpss_device_desc lpt_sdio_dev_desc = { static const struct lpss_device_desc byt_pwm_dev_desc = { .flags = LPSS_SAVE_CTX, + .prv_offset = 0x800, .setup = byt_pwm_setup, }; static const struct lpss_device_desc bsw_pwm_dev_desc = { .flags = LPSS_SAVE_CTX | LPSS_NO_D3_DELAY, + .prv_offset = 0x800, .setup = bsw_pwm_setup, };

7 years, 1 month

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FAILED: patch "[PATCH] tpm: fix race condition in tpm_common_write()" failed to apply to 4.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 3ab2011ea368ec3433ad49e1b9e1c7b70d2e65df Mon Sep 17 00:00:00 2001 From: Tadeusz Struk <tadeusz.struk(a)intel.com> Date: Tue, 22 May 2018 14:37:18 -0700 Subject: [PATCH] tpm: fix race condition in tpm_common_write() There is a race condition in tpm_common_write function allowing two threads on the same /dev/tpm<N>, or two different applications on the same /dev/tpmrm<N> to overwrite each other commands/responses. Fixed this by taking the priv->buffer_mutex early in the function. Also converted the priv->data_pending from atomic to a regular size_t type. There is no need for it to be atomic since it is only touched under the protection of the priv->buffer_mutex. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable(a)vger.kernel.org Signed-off-by: Tadeusz Struk <tadeusz.struk(a)intel.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-common.c index 230b99288024..e4a04b2d3c32 100644 --- a/drivers/char/tpm/tpm-dev-common.c +++ b/drivers/char/tpm/tpm-dev-common.c @@ -37,7 +37,7 @@ static void timeout_work(struct work_struct *work) struct file_priv *priv = container_of(work, struct file_priv, work); mutex_lock(&priv->buffer_mutex); - atomic_set(&priv->data_pending, 0); + priv->data_pending = 0; memset(priv->data_buffer, 0, sizeof(priv->data_buffer)); mutex_unlock(&priv->buffer_mutex); } @@ -46,7 +46,6 @@ void tpm_common_open(struct file *file, struct tpm_chip *chip, struct file_priv *priv) { priv->chip = chip; - atomic_set(&priv->data_pending, 0); mutex_init(&priv->buffer_mutex); timer_setup(&priv->user_read_timer, user_reader_timeout, 0); INIT_WORK(&priv->work, timeout_work); @@ -58,29 +57,24 @@ ssize_t tpm_common_read(struct file *file, char __user *buf, size_t size, loff_t *off) { struct file_priv *priv = file->private_data; - ssize_t ret_size; - ssize_t orig_ret_size; + ssize_t ret_size = 0; int rc; del_singleshot_timer_sync(&priv->user_read_timer); flush_work(&priv->work); - ret_size = atomic_read(&priv->data_pending); - if (ret_size > 0) { /* relay data */ - orig_ret_size = ret_size; - if (size < ret_size) - ret_size = size; + mutex_lock(&priv->buffer_mutex); - mutex_lock(&priv->buffer_mutex); + if (priv->data_pending) { + ret_size = min_t(ssize_t, size, priv->data_pending); rc = copy_to_user(buf, priv->data_buffer, ret_size); - memset(priv->data_buffer, 0, orig_ret_size); + memset(priv->data_buffer, 0, priv->data_pending); if (rc) ret_size = -EFAULT; - mutex_unlock(&priv->buffer_mutex); + priv->data_pending = 0; } - atomic_set(&priv->data_pending, 0); - + mutex_unlock(&priv->buffer_mutex); return ret_size; } @@ -91,17 +85,19 @@ ssize_t tpm_common_write(struct file *file, const char __user *buf, size_t in_size = size; ssize_t out_size; + if (in_size > TPM_BUFSIZE) + return -E2BIG; + + mutex_lock(&priv->buffer_mutex); + /* Cannot perform a write until the read has cleared either via * tpm_read or a user_read_timer timeout. This also prevents split * buffered writes from blocking here. */ - if (atomic_read(&priv->data_pending) != 0) + if (priv->data_pending != 0) { + mutex_unlock(&priv->buffer_mutex); return -EBUSY; - - if (in_size > TPM_BUFSIZE) - return -E2BIG; - - mutex_lock(&priv->buffer_mutex); + } if (copy_from_user (priv->data_buffer, (void __user *) buf, in_size)) { @@ -132,7 +128,7 @@ ssize_t tpm_common_write(struct file *file, const char __user *buf, return out_size; } - atomic_set(&priv->data_pending, out_size); + priv->data_pending = out_size; mutex_unlock(&priv->buffer_mutex); /* Set a timeout by which the reader must come claim the result */ @@ -149,5 +145,5 @@ void tpm_common_release(struct file *file, struct file_priv *priv) del_singleshot_timer_sync(&priv->user_read_timer); flush_work(&priv->work); file->private_data = NULL; - atomic_set(&priv->data_pending, 0); + priv->data_pending = 0; } diff --git a/drivers/char/tpm/tpm-dev.h b/drivers/char/tpm/tpm-dev.h index ba3b6f9dacf7..b24cfb4d3ee1 100644 --- a/drivers/char/tpm/tpm-dev.h +++ b/drivers/char/tpm/tpm-dev.h @@ -8,7 +8,7 @@ struct file_priv { struct tpm_chip *chip; /* Data passed to and from the tpm via the read/write calls */ - atomic_t data_pending; + size_t data_pending; struct mutex buffer_mutex; struct timer_list user_read_timer; /* user needs to claim result */

7 years, 1 month

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want to have a try

by Joe

Are you upset for your current business s a l e s? We provide email C A M P A I G N service and we can bring you business l e a d s and up your s a l e s. Please reply today so we can send options for you. Kind Regards, Joe

7 years, 1 month

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[PATCH] xen/netfront: don't cache skb_shinfo()

by Juergen Gross

skb_shinfo() can change when calling __pskb_pull_tail(): Don't cache its return value. Cc: stable(a)vger.kernel.org Signed-off-by: Juergen Gross <jgross(a)suse.com> --- drivers/net/xen-netfront.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 2d8812dd1534..9dd2ca62d84a 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -894,7 +894,6 @@ static RING_IDX xennet_fill_frags(struct netfront_queue *queue, struct sk_buff *skb, struct sk_buff_head *list) { - struct skb_shared_info *shinfo = skb_shinfo(skb); RING_IDX cons = queue->rx.rsp_cons; struct sk_buff *nskb; @@ -903,15 +902,16 @@ static RING_IDX xennet_fill_frags(struct netfront_queue *queue, RING_GET_RESPONSE(&queue->rx, ++cons); skb_frag_t *nfrag = &skb_shinfo(nskb)->frags[0]; - if (shinfo->nr_frags == MAX_SKB_FRAGS) { + if (skb_shinfo(skb)->nr_frags == MAX_SKB_FRAGS) { unsigned int pull_to = NETFRONT_SKB_CB(skb)->pull_to; BUG_ON(pull_to <= skb_headlen(skb)); __pskb_pull_tail(skb, pull_to - skb_headlen(skb)); } - BUG_ON(shinfo->nr_frags >= MAX_SKB_FRAGS); + BUG_ON(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS); - skb_add_rx_frag(skb, shinfo->nr_frags, skb_frag_page(nfrag), + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, + skb_frag_page(nfrag), rx->offset, rx->status, PAGE_SIZE); skb_shinfo(nskb)->nr_frags = 0; -- 2.13.7

7 years, 1 month

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[for-next][PATCH 33/34] uprobes: Use synchronize_rcu() not synchronize_sched()

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> While debugging another bug, I was looking at all the synchronize*() functions being used in kernel/trace, and noticed that trace_uprobes was using synchronize_sched(), with a comment to synchronize with {u,ret}_probe_trace_func(). When looking at those functions, the data is protected with "rcu_read_lock()" and not with "rcu_read_lock_sched()". This is using the wrong synchronize_*() function. Link: http://lkml.kernel.org/r/20180809160553.469e1e32@gandalf.local.home Cc: stable(a)vger.kernel.org Fixes: 70ed91c6ec7f8 ("tracing/uprobes: Support ftrace_event_file base multibuffer") Acked-by: Oleg Nesterov <oleg(a)redhat.com> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- kernel/trace/trace_uprobe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index bf89a51e740d..ac02fafc9f1b 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -952,7 +952,7 @@ probe_event_disable(struct trace_uprobe *tu, struct trace_event_file *file) list_del_rcu(&link->list); /* synchronize with u{,ret}probe_trace_func */ - synchronize_sched(); + synchronize_rcu(); kfree(link); if (!list_empty(&tu->tp.files)) -- 2.18.0

7 years, 1 month

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[for-next][PATCH 18/34] tracing: Do not call start/stop() functions when tracing_on does not change

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> Currently, when one echo's in 1 into tracing_on, the current tracer's "start()" function is executed, even if tracing_on was already one. This can lead to strange side effects. One being that if the hwlat tracer is enabled, and someone does "echo 1 > tracing_on" into tracing_on, the hwlat tracer's start() function is called again which will recreate another kernel thread, and make it unable to remove the old one. Link: http://lkml.kernel.org/r/1533120354-22923-1-git-send-email-erica.bugden@lin… Cc: stable(a)vger.kernel.org Fixes: 2df8f8a6a897e ("tracing: Fix regression with irqsoff tracer and tracing_on file") Reported-by: Erica Bugden <erica.bugden(a)linutronix.de> Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- kernel/trace/trace.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 823687997b01..2378bb4f1442 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -7628,7 +7628,9 @@ rb_simple_write(struct file *filp, const char __user *ubuf, if (buffer) { mutex_lock(&trace_types_lock); - if (val) { + if (!!val == tracer_tracing_is_on(tr)) { + val = 0; /* do nothing */ + } else if (val) { tracer_tracing_on(tr); if (tr->current_trace->start) tr->current_trace->start(tr); -- 2.18.0

7 years, 1 month

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[PATCH] i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes

by Hans de Goede

acpi_gsb_i2c_write_bytes() returns i2c_transfer()'s return value, which is the number of transfers executed on success, so 1. The ACPI code expects us to store 0 in gsb->status for success, not 1. Specifically this breaks the following code in the Thinkpad 8 DSDT: ECWR = I2CW = ECWR /* \_SB_.I2C1.BAT0.ECWR */ If ((ECST == Zero)) { ECRD = I2CR /* \_SB_.I2C1.I2CR */ } Before this commit we set ECST to 1, causing the read to never happen breaking battery monitoring on the Thinkpad 8. Note the Thinkpad 8 also has some unrelated issues where i2c transfers are unreliable. This commit sets status to 0 if it was bigger then 0 (so success), mirroring the multi-byte read path, fixing this. Cc: stable(a)vger.kernel.org Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> --- drivers/i2c/i2c-core-acpi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index 7c3b4740b94b..10ad851bd277 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -595,6 +595,8 @@ i2c_acpi_space_handler(u32 function, acpi_physical_address command, } else { status = acpi_gsb_i2c_write_bytes(client, command, gsb->data, info->access_length); + if (status > 0) + status = 0; } break; -- 2.18.0

7 years, 1 month

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[PATCH] xtensa: increase ranges in ___invalidate_{i,d}cache_all

by Max Filippov

Cache invalidation macros use cache line size to iterate over invalidated cache lines, assuming that all cache ways are invalidated by single instruction, but xtensa ISA recommends to not assume that for future compatibility: In some implementations all ways at index Addry-1..z are invalidated regardless of the specified way, but for future compatibility this behavior should not be assumed. Iterate over all cache ways in ___invalidate_icache_all and ___invalidate_dcache_all. Cc: stable(a)vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc(a)gmail.com> --- arch/xtensa/include/asm/cacheasm.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/xtensa/include/asm/cacheasm.h b/arch/xtensa/include/asm/cacheasm.h index 5dd57c5db76c..e23069bcd8fb 100644 --- a/arch/xtensa/include/asm/cacheasm.h +++ b/arch/xtensa/include/asm/cacheasm.h @@ -123,7 +123,7 @@ .macro ___invalidate_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at dii __stringify(DCACHE_WAY_SIZE) \ + __loop_cache_all \ar \at dii XCHAL_DCACHE_SIZE \ XCHAL_DCACHE_LINEWIDTH 1020 #endif @@ -133,7 +133,7 @@ .macro ___invalidate_icache_all ar at #if XCHAL_ICACHE_SIZE - __loop_cache_all \ar \at iii __stringify(ICACHE_WAY_SIZE) \ + __loop_cache_all \ar \at iii XCHAL_ICACHE_SIZE \ XCHAL_ICACHE_LINEWIDTH 1020 #endif -- 2.11.0

7 years, 1 month

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[PATCH] xtensa: limit offsets in __loop_cache_{all,page}

by Max Filippov

When building kernel for xtensa cores with big cache lines (e.g. 128 bytes or more) __loop_cache_all and __loop_cache_page may generate assembly instructions with immediate fields that are too big. This results in the following build errors: arch/xtensa/mm/misc.S: Assembler messages: arch/xtensa/mm/misc.S:464: Error: operand 2 of 'diwbi' has invalid value '256' arch/xtensa/mm/misc.S:464: Error: operand 2 of 'diwbi' has invalid value '384' arch/xtensa/kernel/head.S: Assembler messages: arch/xtensa/kernel/head.S:172: Error: operand 2 of 'diu' has invalid value '256' arch/xtensa/kernel/head.S:172: Error: operand 2 of 'diu' has invalid value '384' arch/xtensa/kernel/head.S:176: Error: operand 2 of 'iiu' has invalid value '256' arch/xtensa/kernel/head.S:176: Error: operand 2 of 'iiu' has invalid value '384' arch/xtensa/kernel/head.S:255: Error: operand 2 of 'diwb' has invalid value '256' arch/xtensa/kernel/head.S:255: Error: operand 2 of 'diwb' has invalid value '384' Add parameter max_immed to these macros and use it to limit values of immediate operands. Extract common code of these macros into the new macro __loop_cache_unroll. Cc: stable(a)vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc(a)gmail.com> --- arch/xtensa/include/asm/cacheasm.h | 65 +++++++++++++++++++++++--------------- 1 file changed, 40 insertions(+), 25 deletions(-) diff --git a/arch/xtensa/include/asm/cacheasm.h b/arch/xtensa/include/asm/cacheasm.h index 2041abb10a23..5dd57c5db76c 100644 --- a/arch/xtensa/include/asm/cacheasm.h +++ b/arch/xtensa/include/asm/cacheasm.h @@ -31,16 +31,32 @@ * */ - .macro __loop_cache_all ar at insn size line_width - movi \ar, 0 + .macro __loop_cache_unroll ar at insn size line_width max_immed + + .if (1 << (\line_width)) > (\max_immed) + reps = 1 + .elseif (2 << (\line_width)) > (\max_immed) + reps = 2 + .else + reps = 4 + .endif + + __loopi \ar, \at, \size, (reps << (\line_width)) + rep = 0 + .rep reps + \insn \ar, rep << (\line_width) + rep = rep + 1 + .endr + __endla \ar, \at, reps << (\line_width) + + .endm + - __loopi \ar, \at, \size, (4 << (\line_width)) - \insn \ar, 0 << (\line_width) - \insn \ar, 1 << (\line_width) - \insn \ar, 2 << (\line_width) - \insn \ar, 3 << (\line_width) - __endla \ar, \at, 4 << (\line_width) + .macro __loop_cache_all ar at insn size line_width max_immed + + movi \ar, 0 + __loop_cache_unroll \ar, \at, \insn, \size, \line_width, \max_immed .endm @@ -57,14 +73,9 @@ .endm - .macro __loop_cache_page ar at insn line_width + .macro __loop_cache_page ar at insn line_width max_immed - __loopi \ar, \at, PAGE_SIZE, 4 << (\line_width) - \insn \ar, 0 << (\line_width) - \insn \ar, 1 << (\line_width) - \insn \ar, 2 << (\line_width) - \insn \ar, 3 << (\line_width) - __endla \ar, \at, 4 << (\line_width) + __loop_cache_unroll \ar, \at, \insn, PAGE_SIZE, \line_width, \max_immed .endm @@ -72,7 +83,8 @@ .macro ___unlock_dcache_all ar at #if XCHAL_DCACHE_LINE_LOCKABLE && XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -81,7 +93,8 @@ .macro ___unlock_icache_all ar at #if XCHAL_ICACHE_LINE_LOCKABLE && XCHAL_ICACHE_SIZE - __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE XCHAL_ICACHE_LINEWIDTH + __loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE \ + XCHAL_ICACHE_LINEWIDTH 240 #endif .endm @@ -90,7 +103,8 @@ .macro ___flush_invalidate_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -99,7 +113,8 @@ .macro ___flush_dcache_all ar at #if XCHAL_DCACHE_SIZE - __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH + __loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE \ + XCHAL_DCACHE_LINEWIDTH 240 #endif .endm @@ -109,7 +124,7 @@ #if XCHAL_DCACHE_SIZE __loop_cache_all \ar \at dii __stringify(DCACHE_WAY_SIZE) \ - XCHAL_DCACHE_LINEWIDTH + XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -119,7 +134,7 @@ #if XCHAL_ICACHE_SIZE __loop_cache_all \ar \at iii __stringify(ICACHE_WAY_SIZE) \ - XCHAL_ICACHE_LINEWIDTH + XCHAL_ICACHE_LINEWIDTH 1020 #endif .endm @@ -166,7 +181,7 @@ .macro ___flush_invalidate_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -175,7 +190,7 @@ .macro ___flush_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -184,7 +199,7 @@ .macro ___invalidate_dcache_page ar as #if XCHAL_DCACHE_SIZE - __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH + __loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH 1020 #endif .endm @@ -193,7 +208,7 @@ .macro ___invalidate_icache_page ar as #if XCHAL_ICACHE_SIZE - __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH + __loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH 1020 #endif .endm -- 2.11.0

7 years, 1 month

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[PATCH v5 13/13] drm/nouveau: Call pm_runtime_get_noresume() from hpd handlers

by Lyude Paul

We can't and don't need to try resuming the device from our hotplug handlers, but hotplug events are generally something we'd like to keep the device awake for whenever possible. So, grab a PM ref safely in our hotplug handlers using pm_runtime_get_noresume() and mark the device as busy once we're finished. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_connector.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 8409c3f2c3a1..5a8e8c1ad647 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1152,6 +1152,11 @@ nouveau_connector_hotplug(struct nvif_notify *notify) const char *name = connector->name; struct nouveau_encoder *nv_encoder; + /* Resuming the device here isn't possible; but the suspend PM ops + * will wait for us to finish our work before disabling us so this + * should be enough + */ + pm_runtime_get_noresume(drm->dev->dev); nv_connector->hpd_task = current; if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) { @@ -1171,6 +1176,9 @@ nouveau_connector_hotplug(struct nvif_notify *notify) } nv_connector->hpd_task = NULL; + + pm_runtime_mark_last_busy(drm->dev->dev); + pm_runtime_put_autosuspend(drm->dev->dev); return NVIF_NOTIFY_KEEP; } -- 2.17.1

7 years, 1 month

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the editing is that you need

by Jeff

We would like to check if your photos need editing. We can do it for you. Our image editing is for web store photos, jewelries images and beauty and portrait photos etc. It is including cut out and clipping path , and also retouching if it is needed. We can do test on your photos. Just send us a photo we will start to work on it, Thanks, Jeff Allen

7 years, 1 month

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the photos is what you need

by Jeff

We would like to check if your photos need editing. We can do it for you. Our image editing is for web store photos, jewelries images and beauty and portrait photos etc. It is including cut out and clipping path , and also retouching if it is needed. We can do test on your photos. Just send us a photo we will start to work on it, Thanks, Jeff Allen

7 years, 1 month

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KASAN errors from unwind_frame

by Sodagudi Prasad

Hi All, I have observed following KASAN error with 4.14.56 kernel. Can you please copy change-[1](kasan: add no_sanitize attribute for clang builds) into stable kernels? [1] - https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/i… ================================================================== BUG: KASAN: out-of-bounds in __read_once_size_nocheck include/linux/compiler.h:196 [inline] BUG: KASAN: out-of-bounds in unwind_frame+0xc4/0x324 arch/arm64/kernel/stacktrace.c:56 Read of size 8 at addr ffffffe3123ff4b0 by task poc/15233 CPU: 7 PID: 15233 Comm: poc Tainted: G S W O 4.14.56+ #3 Hardware name: Qualcomm Technologies, Inc. Call trace: dump_backtrace+0x0/0x388 show_stack+0x24/0x30 __dump_stack+0x24/0x2c dump_stack+0x8c/0xd0 print_address_description+0x74/0x234 kasan_report+0x240/0x264 __asan_report_load8_noabort+0x2c/0x38 unwind_frame+0xc4/0x324 walk_stackframe+0x44/0x6c __save_stack_trace+0x250/0x444 save_stack_trace_tsk+0x2c/0x38 proc_pid_stack+0x134/0x268 proc_single_show+0xdc/0x130 traverse+0x244/0x5b0 seq_lseek+0x10c/0x27c vfs_llseek+0xb4/0xe4 SyS_lseek+0x54/0xa0 el0_svc_naked+0x34/0x38 The buggy address belongs to the page: page:ffffffbf8c48ffc0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x0() raw: 0000000000000000 0000000000000000 0000000000000000 00000000ffffffff raw: 0000000000000000 dead000000000200 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected page_owner info is not active (free page?) Memory state around the buggy address: ffffffe3123ff380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffe3123ff400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > ffffffe3123ff480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffffffe3123ff500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffe3123ff580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== -Thanks, Prasad -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, Linux Foundation Collaborative Project

7 years, 1 month

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[PATCH] bcache: fix 0day error of setting writeback_rate by sysfs interface

by Coly Li

Commit ea8c5356d390 ("bcache: set max writeback rate when I/O request is idle") changes struct bch_ratelimit member rate from uint32_t to atomic_long_t and uses atomic_long_set() in drivers/md/bcache/sysfs.c to set new writeback rate, after the input is converted from memory buf to long int by sysfs_strtoul_clamp(). The above change has a problem because there is an implicit return inside sysfs_strtoul_clamp() so the following atomic_long_set() won't be called. This error is detected by 0day system with following snipped smatch warnings: drivers/md/bcache/sysfs.c:271 __cached_dev_store() error: uninitialized symbol 'v'. 270 sysfs_strtoul_clamp(writeback_rate, v, 1, INT_MAX); ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @271 atomic_long_set(&dc->writeback_rate.rate, v); This patch fixes the above error by using strtoul_safe_clamp() to convert the input buffer into a long int type result. Fixes: Commit ea8c5356d390 ("bcache: set max writeback rate when I/O request is idle") Signed-off-by: Coly Li <colyli(a)suse.de> Cc: stable(a)vger.kernel.org #4.16+ Cc: Kai Krakow <kai(a)kaishome.de> Cc: Stefan Priebe <s.priebe(a)profihost.ag> --- drivers/md/bcache/sysfs.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 543b06408321..150cf4f4cf74 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -267,10 +267,17 @@ STORE(__cached_dev) sysfs_strtoul_clamp(writeback_percent, dc->writeback_percent, 0, 40); if (attr == &sysfs_writeback_rate) { - int v; + ssize_t ret; + long int v = atomic_long_read(&dc->writeback_rate.rate); + + ret = strtoul_safe_clamp(buf, v, 1, INT_MAX); - sysfs_strtoul_clamp(writeback_rate, v, 1, INT_MAX); - atomic_long_set(&dc->writeback_rate.rate, v); + if (!ret) { + atomic_long_set(&dc->writeback_rate.rate, v); + ret = size; + } + + return ret; } sysfs_strtoul_clamp(writeback_rate_update_seconds, -- 2.18.0

7 years, 1 month

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[patch 4/4] zram: remove BD_CAP_SYNCHRONOUS_IO with writeback feature

by akpm＠linux-foundation.org

From: Minchan Kim <minchan(a)kernel.org> Subject: zram: remove BD_CAP_SYNCHRONOUS_IO with writeback feature If zram supports writeback feature, it's no longer a BD_CAP_SYNCHRONOUS_IO device beause zram does asynchronous IO operations for incompressible pages. Do not pretend to be synchronous IO device. It makes the system very sluggish due to waiting for IO completion from upper layers. Furthermore, it causes a user-after-free problem because swap thinks the opearion is done when the IO functions returns so it can free the page (e.g., lock_page_or_retry and goto out_release in do_swap_page) but in fact, IO is asynchronous so the driver could access a just freed page afterward. This patch fixes the problem. BUG: Bad page state in process qemu-system-x86 pfn:3dfab21 page:ffffdfb137eac840 count:0 mapcount:0 mapping:0000000000000000 index:0x1 flags: 0x17fffc000000008(uptodate) raw: 017fffc000000008 dead000000000100 dead000000000200 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: PAGE_FLAGS_CHECK_AT_PREP flag set bad because of flags: 0x8(uptodate) Modules linked in: lz4 lz4_compress zram zsmalloc intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel bin fmt_misc pcbc aesni_intel aes_x86_64 crypto_simd cryptd iTCO_wdt glue_helper iTCO_vendor_support intel_cstate lpc_ich mei_me intel_uncore intel_rapl_perf pcspkr joydev sg mfd_core ioatdma mei wmi evdev ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad button ip_tables x_tables autofs4 ext4 crc32c_generic crc16 mbcache jbd2 fscrypto hid_generic usbhid hid sd_mod xhci_pci ehci_pci ahci libahci xhci_hcd ehci_hcd libata igb i2c_algo_bit crc32c_intel scsi_mod i2c_i8 01 dca usbcore CPU: 4 PID: 1039 Comm: qemu-system-x86 Tainted: G B 4.18.0-rc5+ #1 Hardware name: Supermicro Super Server/X10SRL-F, BIOS 2.0b 05/02/2017 Call Trace: dump_stack+0x5c/0x7b bad_page+0xba/0x120 get_page_from_freelist+0x1016/0x1250 __alloc_pages_nodemask+0xfa/0x250 alloc_pages_vma+0x7c/0x1c0 do_swap_page+0x347/0x920 ? __update_load_avg_se.isra.38+0x1eb/0x1f0 ? cpumask_next_wrap+0x3d/0x60 __handle_mm_fault+0x7b4/0x1110 ? update_load_avg+0x5ea/0x720 handle_mm_fault+0xfc/0x1f0 __get_user_pages+0x12f/0x690 get_user_pages_unlocked+0x148/0x1f0 __gfn_to_pfn_memslot+0xff/0x3c0 [kvm] try_async_pf+0x87/0x230 [kvm] tdp_page_fault+0x132/0x290 [kvm] ? vmexit_fill_RSB+0xc/0x30 [kvm_intel] kvm_mmu_page_fault+0x74/0x570 [kvm] ? vmexit_fill_RSB+0xc/0x30 [kvm_intel] ? vmexit_fill_RSB+0x18/0x30 [kvm_intel] ? vmexit_fill_RSB+0xc/0x30 [kvm_intel] ? vmexit_fill_RSB+0x18/0x30 [kvm_intel] ? vmexit_fill_RSB+0xc/0x30 [kvm_intel] ? vmexit_fill_RSB+0x18/0x30 [kvm_intel] ? vmexit_fill_RSB+0xc/0x30 [kvm_intel] ? vmexit_fill_RSB+0x18/0x30 [kvm_intel] ? vmexit_fill_RSB+0xc/0x30 [kvm_intel] ? vmexit_fill_RSB+0x18/0x30 [kvm_intel] ? vmexit_fill_RSB+0xc/0x30 [kvm_intel] ? vmx_vcpu_run+0x375/0x620 [kvm_intel] kvm_arch_vcpu_ioctl_run+0x9b3/0x1990 [kvm] ? __update_load_avg_se.isra.38+0x1eb/0x1f0 ? kvm_vcpu_ioctl+0x388/0x5d0 [kvm] kvm_vcpu_ioctl+0x388/0x5d0 [kvm] ? __switch_to+0x395/0x450 ? __switch_to+0x395/0x450 do_vfs_ioctl+0xa2/0x630 ? __schedule+0x3fd/0x890 ksys_ioctl+0x70/0x80 ? exit_to_usermode_loop+0xca/0xf0 __x64_sys_ioctl+0x16/0x20 do_syscall_64+0x55/0x100 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fb30361add7 Code: 00 00 00 48 8b 05 c1 80 2b 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 91 80 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fb2e97f98b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000000ae80 RCX: 00007fb30361add7 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000015 RBP: 00005652b984e0f0 R08: 00005652b7d513d0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb308c66000 R14: 0000000000000000 R15: 00005652b984e0f0 Link: https://lore.kernel.org/lkml/0516ae2d-b0fd-92c5-aa92-112ba7bd32fc@contabo.d… Link: http://lkml.kernel.org/r/20180802051112.86174-1-minchan@kernel.org [minchan(a)kernel.org: fix changelog, add comment] Link: https://lore.kernel.org/lkml/0516ae2d-b0fd-92c5-aa92-112ba7bd32fc@contabo.d… Link: http://lkml.kernel.org/r/20180802051112.86174-1-minchan@kernel.org Link: http://lkml.kernel.org/r/20180805233722.217347-1-minchan@kernel.org [akpm(a)linux-foundation.org: coding-style fixes] Signed-off-by: Minchan Kim <minchan(a)kernel.org> Reported-by: Tino Lehnig <tino.lehnig(a)contabo.de> Tested-by: Tino Lehnig <tino.lehnig(a)contabo.de> Cc: Sergey Senozhatsky <sergey.senozhatsky.work(a)gmail.com> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: <stable(a)vger.kernel.org> [4.15+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- drivers/block/zram/zram_drv.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) --- a/drivers/block/zram/zram_drv.c~zram-remove-bd_cap_synchronous_io-with-writeback-feature +++ a/drivers/block/zram/zram_drv.c @@ -298,7 +298,8 @@ static void reset_bdev(struct zram *zram zram->backing_dev = NULL; zram->old_block_size = 0; zram->bdev = NULL; - + zram->disk->queue->backing_dev_info->capabilities |= + BDI_CAP_SYNCHRONOUS_IO; kvfree(zram->bitmap); zram->bitmap = NULL; } @@ -400,6 +401,18 @@ static ssize_t backing_dev_store(struct zram->backing_dev = backing_dev; zram->bitmap = bitmap; zram->nr_pages = nr_pages; + /* + * With writeback feature, zram does asynchronous IO so it's no longer + * synchronous device so let's remove synchronous io flag. Othewise, + * upper layer(e.g., swap) could wait IO completion rather than + * (submit and return), which will cause system sluggish. + * Furthermore, when the IO function returns(e.g., swap_readpage), + * upper layer expects IO was done so it could deallocate the page + * freely but in fact, IO is going on so finally could cause + * use-after-free when the IO is really done. + */ + zram->disk->queue->backing_dev_info->capabilities &= + ~BDI_CAP_SYNCHRONOUS_IO; up_write(&zram->init_lock); pr_info("setup backing device %s\n", file_name); _

7 years, 1 month

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[folded-merged] zram-remove-bd_cap_synchronous_io-with-writeback-feature-v2.patch removed from -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: zram-remove-bd_cap_synchronous_io-with-writeback-feature-v2 has been removed from the -mm tree. Its filename was zram-remove-bd_cap_synchronous_io-with-writeback-feature-v2.patch This patch was dropped because it was folded into zram-remove-bd_cap_synchronous_io-with-writeback-feature.patch ------------------------------------------------------ From: Minchan Kim <minchan(a)kernel.org> Subject: zram-remove-bd_cap_synchronous_io-with-writeback-feature-v2 - description correction - Andrew - add comment about removing BDI_CAP_SYNCHRONOUS_IO Link: https://lore.kernel.org/lkml/0516ae2d-b0fd-92c5-aa92-112ba7bd32fc@contabo.d… Link: http://lkml.kernel.org/r/20180802051112.86174-1-minchan@kernel.org Link: http://lkml.kernel.org/r/20180805233722.217347-1-minchan@kernel.org Signed-off-by: Minchan Kim <minchan(a)kernel.org> Reported-by: Tino Lehnig <tino.lehnig(a)contabo.de> Tested-by: Tino Lehnig <tino.lehnig(a)contabo.de> Cc: Sergey Senozhatsky <sergey.senozhatsky.work(a)gmail.com> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: <stable(a)vger.kernel.org> [4.15+] Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- diff -puN drivers/block/zram/zram_drv.c~zram-remove-bd_cap_synchronous_io-with-writeback-feature-v2 drivers/block/zram/zram_drv.c --- a/drivers/block/zram/zram_drv.c~zram-remove-bd_cap_synchronous_io-with-writeback-feature-v2 +++ a/drivers/block/zram/zram_drv.c @@ -401,6 +401,16 @@ static ssize_t backing_dev_store(struct zram->backing_dev = backing_dev; zram->bitmap = bitmap; zram->nr_pages = nr_pages; + /* + * With writeback feature, zram does asynchronous IO so it's no longer + * synchronous device so let's remove synchronous io flag. Othewise, + * upper layer(e.g., swap) could wait IO completion rather than + * (submit and return), which will cause system sluggish. + * Furthermore, when the IO function returns(e.g., swap_readpage), + * upper layer expects IO was done so it could deallocate the page + * freely but in fact, IO is going on so finally could cause + * use-after-free when the IO is really done. + */ zram->disk->queue->backing_dev_info->capabilities &= ~BDI_CAP_SYNCHRONOUS_IO; up_write(&zram->init_lock); _ Patches currently in -mm which might be from minchan(a)kernel.org are zram-remove-bd_cap_synchronous_io-with-writeback-feature.patch

7 years, 1 month

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+ reiserfs-fix-broken-xattr-handling-heap-corruption-bad-retval.patch added to -mm tree

by akpm＠linux-foundation.org

The patch titled Subject: reiserfs: fix broken xattr handling (heap corruption, bad retval) has been added to the -mm tree. Its filename is reiserfs-fix-broken-xattr-handling-heap-corruption-bad-retval.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/reiserfs-fix-broken-xattr-handling… and later at http://ozlabs.org/~akpm/mmotm/broken-out/reiserfs-fix-broken-xattr-handling… Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Jann Horn <jannh(a)google.com> Subject: reiserfs: fix broken xattr handling (heap corruption, bad retval) This fixes the following issues: - When a buffer size is supplied to reiserfs_listxattr() such that each individual name fits, but the concatenation of all names doesn't fit, reiserfs_listxattr() overflows the supplied buffer. This leads to a kernel heap overflow (verified using KASAN) followed by an out-of-bounds usercopy and is therefore a security bug. - When a buffer size is supplied to reiserfs_listxattr() such that a name doesn't fit, -ERANGE should be returned. But reiserfs instead just truncates the list of names; I have verified that if the only xattr on a file has a longer name than the supplied buffer length, listxattr() incorrectly returns zero. With my patch applied, -ERANGE is returned in both cases and the memory corruption doesn't happen anymore. Credit for making me clean this code up a bit goes to Al Viro, who pointed out that the ->actor calling convention is suboptimal and should be changed. Link: http://lkml.kernel.org/r/20180802151539.5373-1-jannh@google.com Fixes: 48b32a3553a5 ("reiserfs: use generic xattr handlers") Signed-off-by: Jann Horn <jannh(a)google.com> Cc: Jeff Mahoney <jeffm(a)suse.com> Cc: Eric Biggers <ebiggers(a)google.com> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- fs/reiserfs/xattr.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/fs/reiserfs/xattr.c~reiserfs-fix-broken-xattr-handling-heap-corruption-bad-retval +++ a/fs/reiserfs/xattr.c @@ -792,8 +792,10 @@ static int listxattr_filler(struct dir_c return 0; size = namelen + 1; if (b->buf) { - if (size > b->size) + if (b->pos + size > b->size) { + b->pos = -ERANGE; return -ERANGE; + } memcpy(b->buf + b->pos, name, namelen); b->buf[b->pos + namelen] = 0; } _ Patches currently in -mm which might be from jannh(a)google.com are reiserfs-fix-broken-xattr-handling-heap-corruption-bad-retval.patch fork-dont-copy-inconsistent-signal-handler-state-to-child.patch

7 years, 1 month

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[PATCH v5 10/13] drm/nouveau: Use pm_runtime_get_noresume() in connector_detect()

by Lyude Paul

It's true we can't resume the device from poll workers in nouveau_connector_detect(). We can however, prevent the autosuspend timer from elapsing immediately if it hasn't already without risking any sort of deadlock with the runtime suspend/resume operations. So do that instead of entirely avoiding grabbing a power reference. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_connector.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 2a45b4c2ceb0..010d6db14cba 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -572,12 +572,16 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) nv_connector->edid = NULL; } - /* Outputs are only polled while runtime active, so acquiring a - * runtime PM ref here is unnecessary (and would deadlock upon - * runtime suspend because it waits for polling to finish). + /* Outputs are only polled while runtime active, so resuming the + * device here is unnecessary (and would deadlock upon runtime suspend + * because it waits for polling to finish). We do however, want to + * prevent the autosuspend timer from elapsing during this operation + * if possible. */ - if (!drm_kms_helper_is_poll_worker()) { - ret = pm_runtime_get_sync(connector->dev->dev); + if (drm_kms_helper_is_poll_worker()) { + pm_runtime_get_noresume(dev->dev); + } else { + ret = pm_runtime_get_sync(dev->dev); if (ret < 0 && ret != -EACCES) return conn_status; } @@ -655,10 +659,8 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) out: - if (!drm_kms_helper_is_poll_worker()) { - pm_runtime_mark_last_busy(connector->dev->dev); - pm_runtime_put_autosuspend(connector->dev->dev); - } + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); return conn_status; } -- 2.17.1

7 years, 1 month

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[PATCH v5 08/13] drm/nouveau: Don't ignore nouveau_do_suspend() ret value

by Lyude Paul

Otherwise, how will we roll everything back? Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_drm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index db56e9b6b6af..f79b435368ec 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -842,6 +842,9 @@ nouveau_pmops_runtime_suspend(struct device *dev) } ret = nouveau_do_suspend(drm_dev, true); + if (ret) + return ret; + nouveau_switcheroo_optimus_dsm(); pci_save_state(pdev); pci_disable_device(pdev); -- 2.17.1

7 years, 1 month

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[PATCH v5 07/13] drm/nouveau: Add missing unroll functions in nouveau_do_suspend()

by Lyude Paul

Currently, it appears that nouveau_do_suspend() forgets to roll back suspending fbcon and suspending the device LEDs. We also currently skip the entire rollback process if nouveau_display_suspend() fails. So, fix that. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_drm.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 5ea8fe992484..db56e9b6b6af 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -674,10 +674,11 @@ nouveau_do_suspend(struct drm_device *dev, bool runtime) if (dev->mode_config.num_crtc) { NV_DEBUG(drm, "suspending console...\n"); nouveau_fbcon_set_suspend(dev, 1); + NV_DEBUG(drm, "suspending display...\n"); ret = nouveau_display_suspend(dev, runtime); if (ret) - return ret; + goto fail_fbcon; } NV_DEBUG(drm, "evicting buffers...\n"); @@ -719,7 +720,14 @@ nouveau_do_suspend(struct drm_device *dev, bool runtime) if (dev->mode_config.num_crtc) { NV_DEBUG(drm, "resuming display...\n"); nouveau_display_resume(dev, runtime); + +fail_fbcon: + NV_DEBUG(drm, "resuming console...\n"); + nouveau_fbcon_set_suspend(dev, 0); } + + nouveau_led_resume(dev); + return ret; } -- 2.17.1

7 years, 1 month

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[PATCH v5 06/13] drm/nouveau: Call optimus_dsm functions after nouveau_do_suspend()

by Lyude Paul

It's not necessary to call these before we call nouveau_do_suspend(). Ideally; we shouldn't have to call this at all here, but getting that to work will take a bit more effort. So for the time being, just move this call after nouveau_do_suspend() to allow us to easily be able to abort the runtime suspend process in nouveau_do_suspend() Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Lukas Wunner <lukas(a)wunner.de> Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/nouveau_drm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 04f704b77a3c..5ea8fe992484 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -833,8 +833,8 @@ nouveau_pmops_runtime_suspend(struct device *dev) return -EBUSY; } - nouveau_switcheroo_optimus_dsm(); ret = nouveau_do_suspend(drm_dev, true); + nouveau_switcheroo_optimus_dsm(); pci_save_state(pdev); pci_disable_device(pdev); pci_ignore_hotplug(pdev); -- 2.17.1

7 years, 1 month

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[PATCH] libnvdimm: fix ars_status output length calculation

by Vishal Verma

Commit efda1b5d87cb ("acpi, nfit, libnvdimm: fix / harden ars_status output length handling") Introduced additional hardening for ambiguity in the ACPI spec for ars_status output sizing. However, it had a couple of cases mixed up. Where it should have been checking for (and returning) "out_field[1] - 4" it was using "out_field[1] - 8" and vice versa. This caused a four byte discrepancy in the buffer size passed on to the command handler, and in some cases, this caused memory corruption like: ./daxdev-errors.sh: line 76: 24104 Aborted (core dumped) ./daxdev-errors $busdev $region malloc(): memory corruption Program received signal SIGABRT, Aborted. [...] #5 0x00007ffff7865a2e in calloc () from /lib64/libc.so.6 #6 0x00007ffff7bc2970 in ndctl_bus_cmd_new_ars_status (ars_cap=ars_cap@entry=0x6153b0) at ars.c:136 #7 0x0000000000401644 in check_ars_status (check=0x7fffffffdeb0, bus=0x604c20) at daxdev-errors.c:144 #8 test_daxdev_clear_error (region_name=<optimized out>, bus_name=<optimized out>) at daxdev-errors.c:332 Cc: <stable(a)vger.kernel.org> Cc: Dave Jiang <dave.jiang(a)intel.com> Cc: Keith Busch <keith.busch(a)intel.com> Cc: Lukasz Dorau <lukasz.dorau(a)intel.com> Cc: Dan Williams <dan.j.williams(a)intel.com> Fixes: efda1b5d87cb ("acpi, nfit, libnvdimm: fix / harden ars_status output length handling") Signed-off-by: Vishal Verma <vishal.l.verma(a)intel.com> --- drivers/nvdimm/bus.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index 27902a8799b1..8aae6dcc839f 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -812,9 +812,9 @@ u32 nd_cmd_out_size(struct nvdimm *nvdimm, int cmd, * overshoots the remainder by 4 bytes, assume it was * including 'status'. */ - if (out_field[1] - 8 == remainder) + if (out_field[1] - 4 == remainder) return remainder; - return out_field[1] - 4; + return out_field[1] - 8; } else if (cmd == ND_CMD_CALL) { struct nd_cmd_pkg *pkg = (struct nd_cmd_pkg *) in_field; -- 2.14.4

7 years, 1 month

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[PATCH] clk: sunxi-ng: fix H6 bus clocks divider position

by Icenowy Zheng

The bus clocks (AHB/APB) on Allwinner H6 have their second divider start at bit 8, according to the user manual and the BSP code. However, currently the divider is wrongly set to 16, thus the divider is not correctly read and the clock frequency is not correctly calculated. Fix this bit offset on all affected bus clocks in ccu-sun50i-h6. Cc: stable(a)vger.kernel.org # v4.17.y Signed-off-by: Icenowy Zheng <icenowy(a)aosc.io> --- drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c index bdbfe78fe133..0f7a0ffd3f70 100644 --- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c +++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c @@ -224,7 +224,7 @@ static SUNXI_CCU_MP_WITH_MUX(psi_ahb1_ahb2_clk, "psi-ahb1-ahb2", psi_ahb1_ahb2_parents, 0x510, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); @@ -233,19 +233,19 @@ static const char * const ahb3_apb1_apb2_parents[] = { "osc24M", "osc32k", "pll-periph0" }; static SUNXI_CCU_MP_WITH_MUX(ahb3_clk, "ahb3", ahb3_apb1_apb2_parents, 0x51c, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); static SUNXI_CCU_MP_WITH_MUX(apb1_clk, "apb1", ahb3_apb1_apb2_parents, 0x520, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); static SUNXI_CCU_MP_WITH_MUX(apb2_clk, "apb2", ahb3_apb1_apb2_parents, 0x524, 0, 5, /* M */ - 16, 2, /* P */ + 8, 2, /* P */ 24, 2, /* mux */ 0); -- 2.18.0

7 years, 1 month

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[PATCH] tpm: fix race condition in tpm_common_write()

by Jarkko Sakkinen

From: Tadeusz Struk <tadeusz.struk(a)intel.com> commit 3ab2011ea368ec3433ad49e1b9e1c7b70d2e65df upstream There is a race condition in tpm_common_write function allowing two threads on the same /dev/tpm<N>, or two different applications on the same /dev/tpmrm<N> to overwrite each other commands/responses. Fixed this by taking the priv->buffer_mutex early in the function. Also converted the priv->data_pending from atomic to a regular size_t type. There is no need for it to be atomic since it is only touched under the protection of the priv->buffer_mutex. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable(a)vger.kernel.org Signed-off-by: Tadeusz Struk <tadeusz.struk(a)intel.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen(a)linux.intel.com> --- Manually backported for v4.4 and v4.9. drivers/char/tpm/tpm-dev.c | 43 ++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 23 deletions(-) diff --git a/drivers/char/tpm/tpm-dev.c b/drivers/char/tpm/tpm-dev.c index 65b824954bdc..1662e4688ee2 100644 --- a/drivers/char/tpm/tpm-dev.c +++ b/drivers/char/tpm/tpm-dev.c @@ -25,7 +25,7 @@ struct file_priv { struct tpm_chip *chip; /* Data passed to and from the tpm via the read/write calls */ - atomic_t data_pending; + size_t data_pending; struct mutex buffer_mutex; struct timer_list user_read_timer; /* user needs to claim result */ @@ -46,7 +46,7 @@ static void timeout_work(struct work_struct *work) struct file_priv *priv = container_of(work, struct file_priv, work); mutex_lock(&priv->buffer_mutex); - atomic_set(&priv->data_pending, 0); + priv->data_pending = 0; memset(priv->data_buffer, 0, sizeof(priv->data_buffer)); mutex_unlock(&priv->buffer_mutex); } @@ -72,7 +72,6 @@ static int tpm_open(struct inode *inode, struct file *file) } priv->chip = chip; - atomic_set(&priv->data_pending, 0); mutex_init(&priv->buffer_mutex); setup_timer(&priv->user_read_timer, user_reader_timeout, (unsigned long)priv); @@ -86,28 +85,24 @@ static ssize_t tpm_read(struct file *file, char __user *buf, size_t size, loff_t *off) { struct file_priv *priv = file->private_data; - ssize_t ret_size; + ssize_t ret_size = 0; int rc; del_singleshot_timer_sync(&priv->user_read_timer); flush_work(&priv->work); - ret_size = atomic_read(&priv->data_pending); - if (ret_size > 0) { /* relay data */ - ssize_t orig_ret_size = ret_size; - if (size < ret_size) - ret_size = size; + mutex_lock(&priv->buffer_mutex); - mutex_lock(&priv->buffer_mutex); + if (priv->data_pending) { + ret_size = min_t(ssize_t, size, priv->data_pending); rc = copy_to_user(buf, priv->data_buffer, ret_size); - memset(priv->data_buffer, 0, orig_ret_size); + memset(priv->data_buffer, 0, priv->data_pending); if (rc) ret_size = -EFAULT; - mutex_unlock(&priv->buffer_mutex); + priv->data_pending = 0; } - atomic_set(&priv->data_pending, 0); - + mutex_unlock(&priv->buffer_mutex); return ret_size; } @@ -118,18 +113,20 @@ static ssize_t tpm_write(struct file *file, const char __user *buf, size_t in_size = size; ssize_t out_size; - /* cannot perform a write until the read has cleared - either via tpm_read or a user_read_timer timeout. - This also prevents splitted buffered writes from blocking here. - */ - if (atomic_read(&priv->data_pending) != 0) - return -EBUSY; - if (in_size > TPM_BUFSIZE) return -E2BIG; mutex_lock(&priv->buffer_mutex); + /* Cannot perform a write until the read has cleared either via + * tpm_read or a user_read_timer timeout. This also prevents split + * buffered writes from blocking here. + */ + if (priv->data_pending != 0) { + mutex_unlock(&priv->buffer_mutex); + return -EBUSY; + } + if (copy_from_user (priv->data_buffer, (void __user *) buf, in_size)) { mutex_unlock(&priv->buffer_mutex); @@ -159,7 +156,7 @@ static ssize_t tpm_write(struct file *file, const char __user *buf, return out_size; } - atomic_set(&priv->data_pending, out_size); + priv->data_pending = out_size; mutex_unlock(&priv->buffer_mutex); /* Set a timeout by which the reader must come claim the result */ @@ -178,7 +175,7 @@ static int tpm_release(struct inode *inode, struct file *file) del_singleshot_timer_sync(&priv->user_read_timer); flush_work(&priv->work); file->private_data = NULL; - atomic_set(&priv->data_pending, 0); + priv->data_pending = 0; clear_bit(0, &priv->chip->is_open); kfree(priv); return 0; -- 2.17.1

7 years, 1 month

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Applied "spi: davinci: fix a NULL pointer dereference" to the spi tree

by Mark Brown

The patch spi: davinci: fix a NULL pointer dereference has been applied to the spi tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From 563a53f3906a6b43692498e5b3ae891fac93a4af Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski <bgolaszewski(a)baylibre.com> Date: Fri, 10 Aug 2018 11:13:52 +0200 Subject: [PATCH] spi: davinci: fix a NULL pointer dereference On non-OF systems spi->controlled_data may be NULL. This causes a NULL pointer derefence on dm365-evm. Signed-off-by: Bartosz Golaszewski <bgolaszewski(a)baylibre.com> Signed-off-by: Mark Brown <broonie(a)kernel.org> Cc: stable(a)vger.kernel.org --- drivers/spi/spi-davinci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 60d59b003aa4..4ffc0f495be8 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -217,7 +217,7 @@ static void davinci_spi_chipselect(struct spi_device *spi, int value) pdata = &dspi->pdata; /* program delay transfers if tx_delay is non zero */ - if (spicfg->wdelay) + if (spicfg && spicfg->wdelay) spidat1 |= SPIDAT1_WDEL; /* -- 2.18.0

7 years, 1 month

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Please help to apply commit 32b6170ca59c("ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV")into the 4.4 stable kernel

by Yongqin Liu

Hi, All Sorry, I am following the instructions in Documentation/networking/netdev-FAQ.txt to send out this mail, if I was wrong or there are more things I need to do, please let me know. After investigated on some failures of the android VtsKernelNetTest module test, I found that without the change of "ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV", the config of CRYPTO_ECHAINIV will be generated as m by default in the .config file, which needs more module loading process to be done. But with the 4.9 and 4.14 kernels which have the change, CRYPTO_ECHAINIV will be generated as y by default in the .config file. We could set config of CRYPTO_ECHAINIV to y explicitly to generated the correct .config file, but having the change of "ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV" cherry picked into the 4.4 stable kernel looks more like the right solution. The commit id for that change is 32b6170ca59ccf07d0e394561e54b2cd9726038c, it's already in 4.9 and 4.14 kernels, like here: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net… Could you please help to check if we could have 32b6170ca59ccf07d0e394561e54b2cd9726038c in the 4.4 stable kernel? The patch is here: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/patch/net?… Thanks in advance! -- Best Regards, Yongqin Liu

7 years, 1 month

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[PATCH] uprobes: Use synchronize_rcu() not synchronize_sched()

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> While debugging another bug, I was looking at all the synchronize*() functions being used in kernel/trace, and noticed that trace_uprobes was using synchronize_sched(), with a comment to synchronize with {u,ret}_probe_trace_func(). When looking at those functions, the data is protected with "rcu_read_lock()" and not with "rcu_read_lock_sched()". This is using the wrong synchronize_*() function. Cc: stable(a)vger.kernel.org Fixes: 70ed91c6ec7f8 ("tracing/uprobes: Support ftrace_event_file base multibuffer") Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- kernel/trace/trace_uprobe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index bf89a51e740d..ac02fafc9f1b 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -952,7 +952,7 @@ probe_event_disable(struct trace_uprobe *tu, struct trace_event_file *file) list_del_rcu(&link->list); /* synchronize with u{,ret}probe_trace_func */ - synchronize_sched(); + synchronize_rcu(); kfree(link); if (!list_empty(&tu->tp.files)) -- 2.13.6

7 years, 1 month

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did you check it

by Kelly

Your photos need editing. We can do it for you. We do editing for e-commerce photos, jewelries images and portrait photos etc. This will include cutout and clipping path etc , also retouching if needed. Let;s know if you want to send photos for working. We can do test on your photos. Thanks, Kelly

7 years, 1 month

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[PATCH 2/2] drm/nouveau: Reset MST branching unit before enabling

by Lyude Paul

When probing a new MST device, it's not safe to make any assumptions about it's current state. While most well mannered MST hubs will just disable the branching unit on hotplug disconnects, this isn't enough to save us from various other scenarios that might have resulted in something writing to the MST branching unit before we got control of it. This could happen if a previous probe we tried failed, if we're booting in kexec context and the hub is still in the state the last kernel put it in, etc. Luckily; there is no reason we can't just reset the branching unit every time we enable a new topology. So, fix this by resetting it on enabling new topologies to ensure that we always start off with a clean, unmodified topology state on MST sinks. This fixes occasional hard-lockups on my P50's laptop dock (e.g. AUX times out all DPCD trasactions) observed after multiple docks, undocks, and module reloads. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index cdb3ef7c5d86..61bc36e9c915 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -1098,17 +1098,21 @@ nv50_mstm_enable(struct nv50_mstm *mstm, u8 dpcd, int state) int ret; if (dpcd >= 0x12) { - ret = drm_dp_dpcd_readb(mstm->mgr.aux, DP_MSTM_CTRL, &dpcd); + /* Even if we're enabling MST, start with disabling the + * branching unit to clear any sink-side MST topology state + * that wasn't set by us + */ + ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, 0); if (ret < 0) return ret; - dpcd &= ~DP_MST_EN; - if (state) - dpcd |= DP_MST_EN; - - ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, dpcd); - if (ret < 0) - return ret; + if (state) { + /* Now, start initializing */ + ret = drm_dp_dpcd_writeb(mstm->mgr.aux, DP_MSTM_CTRL, + DP_MST_EN); + if (ret < 0) + return ret; + } } return nvif_mthd(disp, 0, &args, sizeof(args)); -- 2.17.1

7 years, 1 month

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[PATCH 1/2] drm/nouveau: Only write DP_MSTM_CTRL when needed

by Lyude Paul

Currently, nouveau will re-write the DP_MSTM_CTRL register for an MST hub every time it receives a long HPD pulse on DP. This isn't actually necessary and additionally, has some unintended side effects. With the P50 I've got here, rewriting DP_MSTM_CTRL constantly seems to make it rather likely (1 out of 5 times usually) that bringing up MST with it's ThinkPad dock will fail and result in sideband messages timing out in the middle. Afterwards, successive probes don't manage to get the dock to communicate properly over MST sideband properly. Many times sideband message timeouts from MST hubs are indicative of either the source or the sink dropping an ESI event, which can cause DRM's perspective of the topology's current state to go out of sync with reality. While it's tough to really know for sure what's happening to the dock, using userspace tools to write to DP_MSTM_CTRL in the middle of the MST link probing process does appear to make things flaky. It's possible that when we write to DP_MSTM_CTRL, the function that gets triggered to respond in the dock's firmware temporarily puts it in a state where it might end up not reporting an ESI to the source, or ends up dropping a sideband message we sent it. So, to fix this we make it so that when probing an MST topology, we respect it's current state. If the dock's already enabled, we simply read DP_MSTM_CTRL and disable the topology if it's value is not what we expected. Otherwise, we perform the normal MST probing dance. We avoid taking any action except if the state of the MST topology actually changes. This fixes MST sideband message timeouts and detection failures on my P50 with its ThinkPad dock. Signed-off-by: Lyude Paul <lyude(a)redhat.com> Cc: stable(a)vger.kernel.org Cc: Karol Herbst <karolherbst(a)gmail.com> --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 45 ++++++++++++++++++++----- 1 file changed, 36 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index f6c0b2aa9857..cdb3ef7c5d86 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -1117,31 +1117,58 @@ nv50_mstm_enable(struct nv50_mstm *mstm, u8 dpcd, int state) int nv50_mstm_detect(struct nv50_mstm *mstm, u8 dpcd[8], int allow) { - int ret, state = 0; + struct drm_dp_aux *aux; + int ret; + bool old_state, new_state; + u8 mstm_ctrl; if (!mstm) return 0; - if (dpcd[0] >= 0x12) { - ret = drm_dp_dpcd_readb(mstm->mgr.aux, DP_MSTM_CAP, &dpcd[1]); + mutex_lock(&mstm->mgr.lock); + + old_state = mstm->mgr.mst_state; + new_state = old_state; + aux = mstm->mgr.aux; + + if (old_state) { + /* Just check that the MST hub is still as we expect it */ + ret = drm_dp_dpcd_readb(aux, DP_MSTM_CTRL, &mstm_ctrl); + if (ret < 0 || !(mstm_ctrl & DP_MST_EN)) { + DRM_DEBUG_KMS("Hub gone, disabling MST topology\n"); + new_state = false; + } + } else if (dpcd[0] >= 0x12) { + ret = drm_dp_dpcd_readb(aux, DP_MSTM_CAP, &dpcd[1]); if (ret < 0) - return ret; + goto probe_error; if (!(dpcd[1] & DP_MST_CAP)) dpcd[0] = 0x11; else - state = allow; + new_state = allow; } - ret = nv50_mstm_enable(mstm, dpcd[0], state); + if (new_state == old_state) { + mutex_unlock(&mstm->mgr.lock); + return new_state; + } + + ret = nv50_mstm_enable(mstm, dpcd[0], new_state); if (ret) - return ret; + goto probe_error; + + mutex_unlock(&mstm->mgr.lock); - ret = drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, state); + ret = drm_dp_mst_topology_mgr_set_mst(&mstm->mgr, new_state); if (ret) return nv50_mstm_enable(mstm, dpcd[0], 0); - return mstm->mgr.mst_state; + return new_state; + +probe_error: + mutex_unlock(&mstm->mgr.lock); + return ret; } static void -- 2.17.1

7 years, 1 month

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[for-next][PATCH 6/6] uprobes: Use synchronize_rcu() not synchronize_sched()

by Steven Rostedt

From: "Steven Rostedt (VMware)" <rostedt(a)goodmis.org> While debugging another bug, I was looking at all the synchronize*() functions being used in kernel/trace, and noticed that trace_uprobes was using synchronize_sched(), with a comment to synchronize with {u,ret}_probe_trace_func(). When looking at those functions, the data is protected with "rcu_read_lock()" and not with "rcu_read_lock_sched()". This is using the wrong synchronize_*() function. Cc: stable(a)vger.kernel.org Fixes: 70ed91c6ec7f8 ("tracing/uprobes: Support ftrace_event_file base multibuffer") Signed-off-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> --- kernel/trace/trace_uprobe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index bf89a51e740d..ac02fafc9f1b 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -952,7 +952,7 @@ probe_event_disable(struct trace_uprobe *tu, struct trace_event_file *file) list_del_rcu(&link->list); /* synchronize with u{,ret}probe_trace_func */ - synchronize_sched(); + synchronize_rcu(); kfree(link); if (!list_empty(&tu->tp.files)) -- 2.18.0

7 years, 1 month

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[PATCH v5 1/3] blkcg: Introduce blkg_root_lookup()

by Bart Van Assche

This new function will be used in a later patch to verify whether a queue has been dissociated from the cgroup controller before being released. Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Cc: Tejun Heo <tj(a)kernel.org> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Omar Sandoval <osandov(a)fb.com> Cc: Johannes Thumshirn <jthumshirn(a)suse.de> Cc: Alexandru Moise <00moses.alexander00(a)gmail.com> Cc: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: <stable(a)vger.kernel.org> --- include/linux/blk-cgroup.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h index f7b910768306..1361cfc9b878 100644 --- a/include/linux/blk-cgroup.h +++ b/include/linux/blk-cgroup.h @@ -341,6 +341,23 @@ static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, return __blkg_lookup(blkcg, q, false); } +/** + * blkg_lookup - look up blkg for the specified request queue + * @q: request_queue of interest + * + * Lookup blkg for @q at the root level. See also blkg_lookup(). + */ +static inline struct blkcg_gq *blkg_root_lookup(struct request_queue *q) +{ + struct blkcg_gq *blkg; + + rcu_read_lock(); + blkg = blkg_lookup(&blkcg_root, q); + rcu_read_unlock(); + + return blkg; +} + /** * blkg_to_pdata - get policy private data * @blkg: blkg of interest @@ -864,6 +881,7 @@ static inline bool blk_cgroup_congested(void) { return false; } static inline void blkcg_schedule_throttle(struct request_queue *q, bool use_memdelay) { } static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { return NULL; } +static inline struct blkcg_gq *blkg_root_lookup(struct request_queue *q) { return NULL; } static inline int blkcg_init_queue(struct request_queue *q) { return 0; } static inline void blkcg_drain_queue(struct request_queue *q) { } static inline void blkcg_exit_queue(struct request_queue *q) { } -- 2.18.0

7 years, 1 month

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v3.18.118 build: 0 failures 8 warnings (v3.18.118)

by Build bot for Mark Brown

Tree/Branch: v3.18.118 Git describe: v3.18.118 Commit: 830f9674e7 Linux 3.18.118 Build Time: 0 min 1 sec Passed: 7 / 7 (100.00 %) Failed: 0 / 7 ( 0.00 %) Errors: 0 Warnings: 8 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 5 warnings 0 mismatches : arm-allmodconfig 5 warnings 0 mismatches : arm-multi_v7_defconfig 12 warnings 0 mismatches : x86_64-allmodconfig 5 warnings 0 mismatches : arm-multi_v5_defconfig 7 warnings 0 mismatches : x86_64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 8 9 ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] 5 ../mm/slub.c:904:21: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] 5 ../mm/slub.c:856:21: warning: too many arguments for format [-Wformat-extra-args] 5 ../mm/slub.c:851:21: warning: too many arguments for format [-Wformat-extra-args] 3 ../mm/slub.c:856:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] 3 ../mm/slub.c:851:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] 2 ../mm/slub.c:856:29: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] 2 ../mm/slub.c:851:31: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: ../mm/slub.c:851:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:851:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:856:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:856:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:904:21: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: ../mm/slub.c:851:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:851:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:856:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:856:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:904:21: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] ------------------------------------------------------------------------------- x86_64-allmodconfig : PASS, 0 errors, 12 warnings, 0 section mismatches Warnings: ../mm/slub.c:851:31: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:851:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:856:29: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:856:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:904:21: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ------------------------------------------------------------------------------- arm-multi_v5_defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: ../mm/slub.c:851:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:851:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:856:21: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:856:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:904:21: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] ------------------------------------------------------------------------------- x86_64-defconfig : PASS, 0 errors, 7 warnings, 0 section mismatches Warnings: ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../include/linux/ftrace.h:632:36: warning: calling '__builtin_return_address' with a nonzero argument is unsafe [-Wframe-address] ../mm/slub.c:851:31: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:851:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:856:29: warning: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'const char *' [-Wformat=] ../mm/slub.c:856:21: warning: too many arguments for format [-Wformat-extra-args] ../mm/slub.c:904:21: warning: format '%d' expects argument of type 'int', but argument 5 has type 'long unsigned int' [-Wformat=] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig arm-allnoconfig

7 years, 1 month

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[PATCH] pci/sriov: Hold rescan lock while enumerating

by Keith Busch

PCI enumeration/de-enumeration needs to run single threaded to prevent race conditions with other threads changing the topology. Altering the number of virtual functions was not taking the rescan/remove lock hile adding or removing those virtual functions, so this patch adds that. Reported-by: Krzysztof Wierzbicki <krzysztof.wierzbicki(a)intel.com> Cc: stable(a)vger.kernel.org Signed-off-by: Keith Busch <keith.busch(a)intel.com> --- drivers/pci/pci-sysfs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 9ecfe13157c0..611abe220b6f 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -591,6 +591,7 @@ static ssize_t sriov_numvfs_store(struct device *dev, if (num_vfs > pci_sriov_get_totalvfs(pdev)) return -ERANGE; + pci_lock_rescan_remove(); device_lock(&pdev->dev); if (num_vfs == pdev->sriov->num_VFs) @@ -627,6 +628,7 @@ static ssize_t sriov_numvfs_store(struct device *dev, exit: device_unlock(&pdev->dev); + pci_unlock_rescan_remove(); if (ret < 0) return ret; -- 2.14.4

7 years, 1 month

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[PATCH v5 3/3] block: Ensure that a request queue is dissociated from the cgroup controller

by Bart Van Assche

Several block drivers call alloc_disk() followed by put_disk() if something fails before device_add_disk() is called without calling blk_cleanup_queue(). Make sure that also for this scenario a request queue is dissociated from the cgroup controller. This patch avoids that loading the parport_pc, paride and pf drivers triggers the following kernel crash: BUG: KASAN: null-ptr-deref in pi_init+0x42e/0x580 [paride] Read of size 4 at addr 0000000000000008 by task modprobe/744 Call Trace: dump_stack+0x9a/0xeb kasan_report+0x139/0x350 pi_init+0x42e/0x580 [paride] pf_init+0x2bb/0x1000 [pf] do_one_initcall+0x8e/0x405 do_init_module+0xd9/0x2f2 load_module+0x3ab4/0x4700 SYSC_finit_module+0x176/0x1a0 do_syscall_64+0xee/0x2b0 entry_SYSCALL_64_after_hwframe+0x42/0xb7 Reported-by: Alexandru Moise <00moses.alexander00(a)gmail.com> Fixes: a063057d7c73 ("block: Fix a race between request queue removal and the block cgroup controller") # v4.17 Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Tested-by: Alexandru Moise <00moses.alexander00(a)gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn(a)suse.de> Cc: Tejun Heo <tj(a)kernel.org> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Alexandru Moise <00moses.alexander00(a)gmail.com> Cc: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: <stable(a)vger.kernel.org> --- block/blk-sysfs.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index ca1984ecbdeb..fcadea471779 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -802,6 +802,21 @@ static void __blk_release_queue(struct work_struct *work) blk_stat_remove_callback(q, q->poll_cb); blk_stat_free_callback(q->poll_cb); + if (!blk_queue_dead(q)) { + /* + * Last reference was dropped without having called + * blk_cleanup_queue(). + */ + WARN_ONCE(blk_queue_init_done(q), + "request queue %p has been registered but blk_cleanup_queue() has not been called for that queue\n", + q); + blk_exit_queue(q); + } + + WARN(blkg_root_lookup(q), + "request queue %p is being released but it has not yet been removed from the blkcg controller\n", + q); + blk_free_queue_stats(q->stats); blk_exit_rl(q, &q->root_rl); -- 2.18.0

7 years, 1 month

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[PATCH v5 2/3] block: Introduce blk_exit_queue()

by Bart Van Assche

This patch does not change any functionality. Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Reviewed-by: Johannes Thumshirn <jthumshirn(a)suse.de> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Omar Sandoval <osandov(a)fb.com> Cc: Alexandru Moise <00moses.alexander00(a)gmail.com> Cc: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: <stable(a)vger.kernel.org> --- block/blk-core.c | 54 +++++++++++++++++++++++++++--------------------- block/blk.h | 1 + 2 files changed, 31 insertions(+), 24 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 2e054b65de42..55bc22ef2934 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -719,6 +719,35 @@ void blk_set_queue_dying(struct request_queue *q) } EXPORT_SYMBOL_GPL(blk_set_queue_dying); +/* Unconfigure the I/O scheduler and dissociate from the cgroup controller. */ +void blk_exit_queue(struct request_queue *q) +{ + /* + * Since the I/O scheduler exit code may access cgroup information, + * perform I/O scheduler exit before disassociating from the block + * cgroup controller. + */ + if (q->elevator) { + ioc_clear_queue(q); + elevator_exit(q, q->elevator); + q->elevator = NULL; + } + + /* + * Remove all references to @q from the block cgroup controller before + * restoring @q->queue_lock to avoid that restoring this pointer causes + * e.g. blkcg_print_blkgs() to crash. + */ + blkcg_exit_queue(q); + + /* + * Since the cgroup code may dereference the @q->backing_dev_info + * pointer, only decrease its reference count after having removed the + * association with the block cgroup controller. + */ + bdi_put(q->backing_dev_info); +} + /** * blk_cleanup_queue - shutdown a request queue * @q: request queue to shutdown @@ -788,30 +817,7 @@ void blk_cleanup_queue(struct request_queue *q) */ WARN_ON_ONCE(q->kobj.state_in_sysfs); - /* - * Since the I/O scheduler exit code may access cgroup information, - * perform I/O scheduler exit before disassociating from the block - * cgroup controller. - */ - if (q->elevator) { - ioc_clear_queue(q); - elevator_exit(q, q->elevator); - q->elevator = NULL; - } - - /* - * Remove all references to @q from the block cgroup controller before - * restoring @q->queue_lock to avoid that restoring this pointer causes - * e.g. blkcg_print_blkgs() to crash. - */ - blkcg_exit_queue(q); - - /* - * Since the cgroup code may dereference the @q->backing_dev_info - * pointer, only decrease its reference count after having removed the - * association with the block cgroup controller. - */ - bdi_put(q->backing_dev_info); + blk_exit_queue(q); if (q->mq_ops) blk_mq_free_queue(q); diff --git a/block/blk.h b/block/blk.h index 6adae8f94279..aeb8026f4d7b 100644 --- a/block/blk.h +++ b/block/blk.h @@ -130,6 +130,7 @@ void blk_free_flush_queue(struct blk_flush_queue *q); int blk_init_rl(struct request_list *rl, struct request_queue *q, gfp_t gfp_mask); void blk_exit_rl(struct request_queue *q, struct request_list *rl); +void blk_exit_queue(struct request_queue *q); void blk_rq_bio_prep(struct request_queue *q, struct request *rq, struct bio *bio); void blk_queue_bypass_start(struct request_queue *q); -- 2.18.0

7 years, 1 month

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want to edit

by Tony

We just found that you need image editing. We are an image studio, we do all kinds of image editing such as for e-commerce photos, jewelry images and portrait mages. Our service includes cutting out and clipping path etc , we also do retouching. You may send us a photo, testing will be provided to check our quality Thanks, Tony Glenn

7 years, 1 month

1
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in our studio

by Tony

We just found that you need image editing. We are an image studio, we do all kinds of image editing such as for e-commerce photos, jewelry images and portrait mages. Our service includes cutting out and clipping path etc , we also do retouching. You may send us a photo, testing will be provided to check our quality Thanks, Tony Glenn

7 years, 1 month

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Linux 3.18.118

by Greg KH

I'm announcing the release of the 3.18.118 kernel. All users of the 3.18 kernel series must upgrade. The updated 3.18.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-3.18.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 arch/microblaze/boot/Makefile | 10 ++-- arch/powerpc/kernel/head_8xx.S | 2 arch/powerpc/kernel/pci_32.c | 1 arch/powerpc/platforms/chrp/time.c | 6 +- arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 5 ++ arch/powerpc/platforms/powermac/bootx_init.c | 4 + arch/powerpc/platforms/powermac/setup.c | 1 arch/s390/include/asm/cpu_mf.h | 6 +- arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 arch/x86/kernel/cpu/perf_event_intel_uncore_nhmex.c | 2 crypto/authenc.c | 1 crypto/authencesn.c | 1 drivers/acpi/pci_root.c | 4 + drivers/ata/libata-eh.c | 12 +++-- drivers/char/random.c | 10 +++- drivers/crypto/padlock-aes.c | 8 ++- drivers/gpu/drm/gma500/psb_intel_drv.h | 2 drivers/gpu/drm/gma500/psb_intel_lvds.c | 2 drivers/gpu/drm/radeon/radeon_connectors.c | 10 ++-- drivers/hid/i2c-hid/i2c-hid.c | 8 +++ drivers/infiniband/core/mad.c | 11 ++-- drivers/infiniband/core/ucma.c | 6 ++ drivers/md/md.c | 3 + drivers/media/common/siano/smsendian.c | 14 ++--- drivers/media/i2c/smiapp/smiapp-core.c | 11 ++-- drivers/media/pci/saa7164/saa7164-fw.c | 3 - drivers/media/platform/omap3isp/isp.c | 7 +- drivers/media/radio/si470x/radio-si470x-i2c.c | 6 +- drivers/net/can/usb/ems_usb.c | 1 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 drivers/net/wireless/ath/regd.h | 5 ++ drivers/net/wireless/ath/regd_common.h | 13 +++++ drivers/net/wireless/mwifiex/usb.c | 3 + drivers/net/wireless/rsi/rsi_91x_sdio.c | 2 drivers/net/wireless/ti/wlcore/sdio.c | 5 ++ drivers/net/xen-netfront.c | 6 ++ drivers/pci/pci-sysfs.c | 15 +++--- drivers/regulator/pfuze100-regulator.c | 1 drivers/rtc/interface.c | 5 ++ drivers/scsi/3w-9xxx.c | 5 ++ drivers/scsi/3w-xxxx.c | 3 + drivers/scsi/megaraid.c | 3 + drivers/scsi/qla2xxx/qla_init.c | 7 +- drivers/scsi/qla2xxx/qla_os.c | 5 +- drivers/scsi/sg.c | 1 drivers/scsi/ufs/ufshcd.c | 2 drivers/tty/hvc/hvc_opal.c | 1 drivers/tty/pty.c | 3 + drivers/usb/core/hub.c | 4 + drivers/virtio/virtio_balloon.c | 2 fs/jfs/xattr.c | 10 ++-- fs/squashfs/block.c | 2 fs/squashfs/cache.c | 3 + fs/squashfs/file.c | 8 ++- fs/squashfs/fragment.c | 17 ++++--- fs/squashfs/squashfs_fs.h | 6 ++ fs/squashfs/squashfs_fs_sb.h | 1 fs/squashfs/super.c | 5 +- include/linux/ring_buffer.h | 1 include/net/tcp.h | 2 kernel/bpf/verifier.c | 4 - kernel/trace/ring_buffer.c | 16 ++++++ kernel/trace/trace.c | 6 ++ kernel/trace/trace_events_trigger.c | 18 +++++-- kernel/trace/trace_kprobe.c | 15 +++++- mm/slub.c | 2 mm/vmalloc.c | 3 - net/dsa/slave.c | 6 ++ net/ipv4/fib_frontend.c | 4 - net/ipv4/inet_fragment.c | 10 ++-- net/ipv4/ipconfig.c | 13 +++++ net/ipv4/tcp_dctcp.c | 4 - net/ipv4/tcp_input.c | 48 ++++++++++---------- sound/pci/emu10k1/emupcm.c | 4 + sound/pci/emu10k1/memory.c | 6 +- sound/pci/fm801.c | 16 +++++- sound/pci/hda/patch_ca0132.c | 8 ++- sound/soc/soc-pcm.c | 6 +- sound/usb/pcm.c | 2 tools/usb/usbip/src/usbip_detach.c | 9 ++- 81 files changed, 365 insertions(+), 144 deletions(-) Alexandre Belloni (1): rtc: ensure rtc_set_alarm fails when alarms are not supported Anil Gurumurthy (1): scsi: qla2xxx: Return error when TMF returns Anson Huang (1): regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops Anton Vasilyev (1): can: ems_usb: Fix memory leak on ems_usb_disconnect() Artem Savkov (1): tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure Brad Love (1): media: saa7164: Fix driver name in debug output Chintan Pandya (1): mm: vmalloc: avoid racy handling of debugobjects in vunmap Chris Novakovic (1): ipconfig: Correctly initialise ic_nameservers Christoph Hellwig (1): PCI: Prevent sysfs disable of device while driver is attached Christophe Leroy (1): powerpc/8xx: fix invalid register expression in head_8xx.S Colin Ian King (1): media: smiapp: fix timeout checking in smiapp_read_nvm Cong Wang (1): infiniband: fix a possible use-after-free bug DaeRyong Jeong (1): tty: Fix data race in tty_insert_flip_string_fixed_flag Damien Le Moal (1): libata: Fix command retry decision Dan Carpenter (1): scsi: megaraid: silence a static checker bug Dmitry Torokhov (1): HID: i2c-hid: check if device is there before really probing Dominik Bozek (1): usb: hub: Don't wait for connect state at resume for powered-off ports Eric Dumazet (5): tcp: do not force quickack when receiving out-of-order packets tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode tcp: do not aggressively quick ack after ECN events tcp: add one more quick ack after after ECN events inet: frag: enforce memory limits earlier Eugeniy Paltsev (1): NET: stmmac: align DMA stuff to largest cache line length Eyal Reizer (1): wlcore: sdio: check for valid platform device data before suspend Florian Fainelli (1): net: dsa: Do not suspend/resume closed slave_dev Ganapathi Bhat (1): mwifiex: handle race during mwifiex_usb_disconnect Greg Kroah-Hartman (1): Linux 3.18.118 Herbert Xu (1): crypto: padlock-aes - Fix Nano workaround data corruption Jakub Kicinski (1): bpf: fix references to free_bpf_prog_info() in comments Jiang Biao (1): virtio_balloon: fix another race between migration and ballooning Jonathan Neuschäfer (1): powerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet Kai Chieh Chuang (1): ASoC: dpcm: fix BE dai not hw_free and shutdown Kan Liang (2): perf/x86/intel/uncore: Correct fixed counter index check in generic code perf/x86/intel/uncore: Correct fixed counter index check for NHM Leon Romanovsky (1): RDMA/mad: Convert BUG_ONs to error flows Linus Torvalds (3): squashfs: be more careful about metadata corruption squashfs: more metadata hardening squashfs: more metadata hardenings Lorenzo Bianconi (1): ipv4: remove BUG_ON() from fib_compute_spec_dst Luc Van Oostenryck (2): drm/radeon: fix mode_valid's return type drm/gma500: fix psb_intel_lvds_mode_valid()'s return type Masami Hiramatsu (1): ring_buffer: tracing: Inherit the tracing setting to next ring buffer Mathieu Malaterre (5): mm/slub.c: add __printf verification to slab_err() powerpc/32: Add a missing include header powerpc/chrp/time: Make some functions static, add missing header include powerpc/powermac: Add missing prototype for note_bootable_part() powerpc/powermac: Mark variable x as unused Mauro Carvalho Chehab (2): media: siano: get rid of __le32/__le16 cast warnings media: si470x: fix __be16 annotations Maya Erez (1): scsi: ufs: fix exception event handling Michal Simek (1): microblaze: Fix simpleImage format generation Mika Westerberg (1): PCI: pciehp: Request control of native hotplug only if supported Quinn Tran (1): scsi: qla2xxx: Fix ISP recovery on unload Shankara Pailoor (1): jfs: Fix inconsistency between memory allocation and ea_buf->max_size Shuah Khan (Samsung OSG) (1): usbip: usbip_detach: Fix memory, udev context and udev leak Siva Rebbagondla (1): rsi: Fix 'invalid vdd' warning in mmc Steven Rostedt (VMware) (3): tracing: Fix double free of event_trigger_data tracing: Fix possible double free in event_enable_trigger_func() tracing: Quiet gcc warning about maybe unused link variable Stewart Smith (1): hvc_opal: don't set tb_ticks_per_usec in udbg_init_opal_common() Suman Anna (1): media: omap3isp: fix unbalanced dma_iommu_mapping Sven Eckelmann (9): ath: Add regulatory mapping for FCC3_ETSIC ath: Add regulatory mapping for ETSI8_WORLD ath: Add regulatory mapping for APL13_WORLD ath: Add regulatory mapping for APL2_FCCA ath: Add regulatory mapping for Uganda ath: Add regulatory mapping for Tanzania ath: Add regulatory mapping for Serbia ath: Add regulatory mapping for Bermuda ath: Add regulatory mapping for Bahamas Takashi Iwai (2): ALSA: emu10k1: Rate-limit error messages about page errors ALSA: usb-audio: Apply rate limit to warning messages in URB complete callback Takashi Sakamoto (1): ALSA: hda/ca0132: fix build failure when a local macro is defined Theodore Ts'o (1): random: mix rdrand with entropy sent in from userspace Thomas Richter (2): s390/cpum_sf: Add data entry sizes to sampling trailer entry perf: fix invalid bit in diagnostic entry Tony Battersby (1): scsi: sg: fix minor memory leak in error path Tudor-Dan Ambarus (2): crypto: authencesn - don't leak pointers to authenc keys crypto: authenc - don't leak pointers to authenc keys Wenwen Wang (2): scsi: 3w-9xxx: fix a missing-check bug scsi: 3w-xxxx: fix a missing-check bug Xiao Liang (1): xen-netfront: wait xenbus state change when load module manually Yousuk Seung (1): tcp: refactor tcp_ecn_check_ce to remove sk type cast Yufen Yu (1): md: fix NULL dereference of mddev->pers in remove_and_add_spares() Zhouyang Jia (2): ALSA: emu10k1: add error handling for snd_ctl_add ALSA: fm801: add error handling for snd_ctl_add

7 years, 1 month

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Linux 4.4.147

by Greg KH

I'm announcing the release of the 4.4.147 kernel. All users of the 4.4 kernel series must upgrade. The updated 4.4.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.4.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- drivers/i2c/busses/i2c-imx.c | 3 +-- drivers/pci/pci-acpi.c | 2 +- drivers/scsi/qla2xxx/qla_init.c | 7 +++---- drivers/scsi/qla2xxx/qla_os.c | 5 +++-- fs/ext4/super.c | 4 ++-- fs/jfs/xattr.c | 10 ++++++---- include/linux/ring_buffer.h | 1 + kernel/irq/manage.c | 9 ++++++++- kernel/time/tick-sched.c | 2 +- kernel/trace/ring_buffer.c | 16 ++++++++++++++++ kernel/trace/trace.c | 6 ++++++ net/netlink/af_netlink.c | 5 +++++ 13 files changed, 54 insertions(+), 18 deletions(-) Anil Gurumurthy (1): scsi: qla2xxx: Return error when TMF returns Anna-Maria Gleixner (1): nohz: Fix local_timer_softirq_pending() Dmitry Safonov (3): netlink: Do not subscribe to non-existent groups netlink: Don't shift with UB on nlk->ngroups netlink: Don't shift on 64 for ngroups Esben Haabendal (1): i2c: imx: Fix reinit_completion() use Greg Kroah-Hartman (1): Linux 4.4.147 Masami Hiramatsu (1): ring_buffer: tracing: Inherit the tracing setting to next ring buffer Quinn Tran (1): scsi: qla2xxx: Fix ISP recovery on unload Shankara Pailoor (1): jfs: Fix inconsistency between memory allocation and ea_buf->max_size Theodore Ts'o (1): ext4: fix false negatives *and* false positives in ext4_check_descriptors() Thomas Gleixner (1): genirq: Make force irq threading setup more robust Vitaly Kuznetsov (1): ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle

7 years, 1 month

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Linux 4.9.119

by Greg KH

I'm announcing the release of the 4.9.119 kernel. All users of the 4.9 kernel series must upgrade. The updated 4.9.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.9.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 +- drivers/i2c/busses/i2c-imx.c | 3 +-- drivers/infiniband/hw/hfi1/rc.c | 2 +- drivers/infiniband/hw/hfi1/uc.c | 4 ++-- drivers/infiniband/hw/hfi1/ud.c | 4 ++-- drivers/infiniband/hw/hfi1/verbs_txreq.c | 4 ++-- drivers/infiniband/hw/hfi1/verbs_txreq.h | 4 ++-- drivers/pci/pci-acpi.c | 2 +- drivers/scsi/qla2xxx/qla_init.c | 7 +++---- drivers/scsi/qla2xxx/qla_os.c | 5 +++-- fs/btrfs/extent_io.c | 3 +++ fs/ext4/super.c | 4 ++-- fs/jfs/xattr.c | 10 ++++++---- include/linux/ring_buffer.h | 1 + include/linux/thread_info.h | 7 +------ kernel/fork.c | 3 +++ kernel/irq/manage.c | 9 ++++++++- kernel/time/tick-sched.c | 2 +- kernel/trace/ring_buffer.c | 16 ++++++++++++++++ kernel/trace/trace.c | 6 ++++++ net/ipv4/tcp_input.c | 23 +++++++++++++++++++++-- net/netlink/af_netlink.c | 5 +++++ 22 files changed, 91 insertions(+), 35 deletions(-) Anil Gurumurthy (1): scsi: qla2xxx: Return error when TMF returns Anna-Maria Gleixner (1): nohz: Fix local_timer_softirq_pending() Dmitry Safonov (3): netlink: Do not subscribe to non-existent groups netlink: Don't shift with UB on nlk->ngroups netlink: Don't shift on 64 for ngroups Eric Dumazet (1): tcp: add tcp_ooo_try_coalesce() helper Esben Haabendal (1): i2c: imx: Fix reinit_completion() use Filipe Manana (1): Btrfs: fix file data corruption after cloning a range and fsync Greg Kroah-Hartman (1): Linux 4.9.119 Kees Cook (1): fork: unconditionally clear stack on fork Konstantin Khlebnikov (1): kmemleak: clear stale pointers from task stacks Masami Hiramatsu (1): ring_buffer: tracing: Inherit the tracing setting to next ring buffer Michael J. Ruhl (1): IB/hfi1: Fix incorrect mixing of ERR_PTR and NULL return values Quinn Tran (1): scsi: qla2xxx: Fix ISP recovery on unload Shankara Pailoor (1): jfs: Fix inconsistency between memory allocation and ea_buf->max_size Theodore Ts'o (1): ext4: fix false negatives *and* false positives in ext4_check_descriptors() Thomas Gleixner (1): genirq: Make force irq threading setup more robust Vitaly Kuznetsov (1): ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle

7 years, 1 month

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Linux 4.14.62

by Greg KH

I'm announcing the release of the 4.14.62 kernel. All users of the 4.14 kernel series must upgrade. The updated 4.14.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.14.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 - drivers/i2c/busses/i2c-imx.c | 3 - drivers/idle/intel_idle.c | 7 +++- drivers/nvme/host/pci.c | 64 ++++++++++++++++---------------------- drivers/nvme/target/fc.c | 44 ++++++++++++++++++++------ drivers/pci/pci-acpi.c | 2 - drivers/scsi/qla2xxx/qla_attr.c | 1 drivers/scsi/qla2xxx/qla_gbl.h | 1 drivers/scsi/qla2xxx/qla_gs.c | 4 ++ drivers/scsi/qla2xxx/qla_init.c | 7 +--- drivers/scsi/qla2xxx/qla_inline.h | 2 + drivers/scsi/qla2xxx/qla_mid.c | 5 ++ drivers/scsi/qla2xxx/qla_os.c | 7 ++-- fs/btrfs/extent_io.c | 3 + fs/ext4/super.c | 4 +- fs/jfs/xattr.c | 10 +++-- fs/xfs/libxfs/xfs_attr_leaf.c | 5 +- fs/xfs/xfs_icache.c | 58 ++++++++++++++++++++++++++++++---- include/linux/ring_buffer.h | 1 kernel/irq/manage.c | 9 ++++- kernel/softirq.c | 2 - kernel/time/tick-sched.c | 2 - kernel/trace/ring_buffer.c | 16 +++++++++ kernel/trace/trace.c | 6 +++ net/netlink/af_netlink.c | 4 +- 25 files changed, 191 insertions(+), 78 deletions(-) Anil Gurumurthy (1): scsi: qla2xxx: Return error when TMF returns Anna-Maria Gleixner (1): nohz: Fix local_timer_softirq_pending() Dave Chinner (2): xfs: catch inode allocation state mismatch corruption xfs: validate cached inodes are free when allocated Dmitry Safonov (1): netlink: Don't shift on 64 for ngroups Eric Sandeen (1): xfs: don't call xfs_da_shrink_inode with NULL bp Esben Haabendal (1): i2c: imx: Fix reinit_completion() use Filipe Manana (1): Btrfs: fix file data corruption after cloning a range and fsync Frederic Weisbecker (1): nohz: Fix missing tick reprogram when interrupting an inline softirq Greg Kroah-Hartman (1): Linux 4.14.62 James Smart (1): nvmet-fc: fix target sgl list on large transfers Keith Busch (1): nvme-pci: Fix queue double allocations Len Brown (1): intel_idle: Graceful probe failure when MWAIT is disabled Masami Hiramatsu (1): ring_buffer: tracing: Inherit the tracing setting to next ring buffer Quinn Tran (3): scsi: qla2xxx: Fix unintialized List head crash scsi: qla2xxx: Fix NPIV deletion by calling wait_for_sess_deletion scsi: qla2xxx: Fix ISP recovery on unload Sagi Grimberg (1): nvme-pci: allocate device queues storage space at probe Shankara Pailoor (1): jfs: Fix inconsistency between memory allocation and ea_buf->max_size Theodore Ts'o (1): ext4: fix false negatives *and* false positives in ext4_check_descriptors() Thomas Gleixner (1): genirq: Make force irq threading setup more robust Vitaly Kuznetsov (1): ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle

7 years, 1 month

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Linux 4.17.14

by Greg KH

I'm announcing the release of the 4.17.14 kernel. All users of the 4.17 kernel series must upgrade. The updated 4.17.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.17.y and can be browsed at the normal kernel.org git web browser: http://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 arch/x86/events/intel/uncore.h | 2 arch/x86/events/intel/uncore_snbep.c | 10 +++- block/blk-core.c | 5 +- drivers/i2c/busses/i2c-imx.c | 3 - drivers/scsi/qla2xxx/qla_attr.c | 1 drivers/scsi/qla2xxx/qla_gbl.h | 1 drivers/scsi/qla2xxx/qla_gs.c | 4 + drivers/scsi/qla2xxx/qla_init.c | 7 +-- drivers/scsi/qla2xxx/qla_inline.h | 2 drivers/scsi/qla2xxx/qla_isr.c | 3 + drivers/scsi/qla2xxx/qla_mbx.c | 6 ++ drivers/scsi/qla2xxx/qla_mid.c | 11 ++++- drivers/scsi/qla2xxx/qla_os.c | 51 ++++++++++-------------- drivers/scsi/qla2xxx/qla_sup.c | 3 + fs/btrfs/extent_io.c | 3 + fs/jfs/jfs_dinode.h | 7 +++ fs/jfs/jfs_incore.h | 1 fs/jfs/super.c | 3 - fs/jfs/xattr.c | 10 ++-- fs/xfs/libxfs/xfs_attr_leaf.c | 5 -- fs/xfs/xfs_icache.c | 73 +++++++++++++++++++++++------------ include/linux/ring_buffer.h | 1 kernel/irq/manage.c | 9 +++- kernel/softirq.c | 2 kernel/time/tick-sched.c | 2 kernel/trace/ring_buffer.c | 16 +++++++ kernel/trace/trace.c | 6 ++ net/netlink/af_netlink.c | 4 - 29 files changed, 170 insertions(+), 83 deletions(-) Anil Gurumurthy (1): scsi: qla2xxx: Return error when TMF returns Anna-Maria Gleixner (1): nohz: Fix local_timer_softirq_pending() Dave Chinner (1): xfs: validate cached inodes are free when allocated Dmitry Safonov (1): netlink: Don't shift on 64 for ngroups Eric Sandeen (1): xfs: don't call xfs_da_shrink_inode with NULL bp Esben Haabendal (1): i2c: imx: Fix reinit_completion() use Filipe Manana (1): Btrfs: fix file data corruption after cloning a range and fsync Frederic Weisbecker (1): nohz: Fix missing tick reprogram when interrupting an inline softirq Greg Kroah-Hartman (1): Linux 4.17.14 Kan Liang (1): perf/x86/intel/uncore: Fix hardcoded index of Broadwell extra PCI devices Kees Cook (1): jfs: Fix usercopy whitelist for inline inode data Linus Torvalds (1): Partially revert "block: fail op_is_write() requests to read-only partitions" Masami Hiramatsu (1): ring_buffer: tracing: Inherit the tracing setting to next ring buffer Quinn Tran (4): scsi: qla2xxx: Fix unintialized List head crash scsi: qla2xxx: Fix NPIV deletion by calling wait_for_sess_deletion scsi: qla2xxx: Fix driver unload by shutting down chip scsi: qla2xxx: Fix ISP recovery on unload Shankara Pailoor (1): jfs: Fix inconsistency between memory allocation and ea_buf->max_size Thomas Gleixner (1): genirq: Make force irq threading setup more robust

7 years, 1 month

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[PATCH 3.18.y 5/5] switch ->setxattr() to passing dentry and inode separately

by Seung-Woo Kim

From: Al Viro <viro(a)zeniv.linux.org.uk> smack ->d_instantiate() uses ->setxattr(), so to be able to call it before we'd hashed the new dentry and attached it to inode, we need ->setxattr() instances getting the inode as an explicit argument rather than obtaining it from dentry. Similar change for ->getxattr() had been done in commit ce23e64. Unlike ->getxattr() (which is used by both selinux and smack instances of ->d_instantiate()) ->setxattr() is used only by smack one and unfortunately it got missed back then. Reported-by: Seung-Woo Kim <sw0312.kim(a)samsung.com> Tested-by: Casey Schaufler <casey(a)schaufler-ca.com> Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk> [sw0312.kim: backport to 3.18] Signed-off-by: Seung-Woo Kim <sw0312.kim(a)samsung.com> --- It is not clear, a26feccaba29 ("ceph: Get rid of d_find_alias in ceph_set_acl") is required backport for ceph or not. --- Documentation/filesystems/porting | 7 +++++++ .../staging/lustre/lustre/llite/llite_internal.h | 4 ++-- drivers/staging/lustre/lustre/llite/xattr.c | 6 ++---- fs/bad_inode.c | 4 ++-- fs/btrfs/xattr.c | 12 +++++++----- fs/btrfs/xattr.h | 5 +++-- fs/ceph/super.h | 4 ++-- fs/ceph/xattr.c | 7 ++++--- fs/cifs/cifsfs.h | 4 ++-- fs/cifs/xattr.c | 13 +++++++------ fs/ecryptfs/crypto.c | 9 +++++---- fs/ecryptfs/ecryptfs_kernel.h | 4 ++-- fs/ecryptfs/inode.c | 7 ++++--- fs/ecryptfs/mmap.c | 3 ++- fs/fuse/dir.c | 6 +++--- fs/gfs2/inode.c | 9 +++++---- fs/hfs/attr.c | 6 +++--- fs/hfs/hfs_fs.h | 2 +- fs/jfs/jfs_xattr.h | 4 ++-- fs/jfs/xattr.c | 10 +++++----- fs/kernfs/inode.c | 11 ++++++----- fs/kernfs/kernfs-internal.h | 3 ++- fs/overlayfs/inode.c | 5 +++-- fs/overlayfs/overlayfs.h | 5 +++-- fs/reiserfs/xattr.c | 8 ++++---- fs/reiserfs/xattr.h | 5 +++-- fs/ubifs/ubifs.h | 2 +- fs/ubifs/xattr.c | 4 ++-- fs/xattr.c | 9 +++++---- include/linux/fs.h | 3 ++- include/linux/xattr.h | 3 ++- mm/shmem.c | 10 ++++++---- security/smack/smack_lsm.c | 2 +- 33 files changed, 110 insertions(+), 86 deletions(-) diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index daf9acd..51bdd4a 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -469,3 +469,10 @@ in your dentry operations instead. dentry might be yet to be attached to inode, so do _not_ use its ->d_inode in the instances. Rationale: !@#!@# security_d_instantiate() needs to be called before we attach dentry to inode. +-- +[mandatory] + ->setxattr() and xattr_handler.set() get dentry and inode passed separately. + dentry might be yet to be attached to inode, so do _not_ use its ->d_inode + in the instances. Rationale: !@#!@# security_d_instantiate() needs to be + called before we attach dentry to inode and !@#!@##!@$!$#!@#$!@$!@$ smack + ->d_instantiate() uses not just ->getxattr() but ->setxattr() as well. diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 442fe5b..d7ac9bc 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -1068,8 +1068,8 @@ static inline __u64 ll_file_maxbytes(struct inode *inode) } /* llite/xattr.c */ -int ll_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags); +int ll_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags); ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size); ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size); diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index fc4b95d3..3edbbd2 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -212,11 +212,9 @@ int ll_setxattr_common(struct inode *inode, const char *name, return 0; } -int ll_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) +int ll_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags) { - struct inode *inode = dentry->d_inode; - LASSERT(inode); LASSERT(name); diff --git a/fs/bad_inode.c b/fs/bad_inode.c index 336c284..5c29455 100644 --- a/fs/bad_inode.c +++ b/fs/bad_inode.c @@ -247,8 +247,8 @@ static int bad_inode_setattr(struct dentry *direntry, struct iattr *attrs) return -EIO; } -static int bad_inode_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) +static int bad_inode_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags) { return -EIO; } diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index 6fa0196..22291af 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -412,10 +412,11 @@ ssize_t btrfs_getxattr(struct dentry *dentry, struct inode *inode, return __btrfs_getxattr(inode, name, buffer, size); } -int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, +int btrfs_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags) { - struct btrfs_root *root = BTRFS_I(dentry->d_inode)->root; + struct btrfs_root *root = BTRFS_I(inode)->root; int ret; /* @@ -431,20 +432,21 @@ int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, * for it via sb->s_xattr. */ if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_setxattr(dentry, name, value, size, flags); + return generic_setxattr(dentry, inode, name, value, + size, flags); ret = btrfs_is_valid_xattr(name); if (ret) return ret; if (!strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN)) - return btrfs_set_prop(dentry->d_inode, name, + return btrfs_set_prop(inode, name, value, size, flags); if (size == 0) value = ""; /* empty EA, do not remove */ - return __btrfs_setxattr(NULL, dentry->d_inode, name, value, size, + return __btrfs_setxattr(NULL, inode, name, value, size, flags); } diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h index 8ee4329..bbd23f3 100644 --- a/fs/btrfs/xattr.h +++ b/fs/btrfs/xattr.h @@ -30,8 +30,9 @@ extern int __btrfs_setxattr(struct btrfs_trans_handle *trans, const void *value, size_t size, int flags); extern ssize_t btrfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size); -extern int btrfs_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags); +extern int btrfs_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags); extern int btrfs_removexattr(struct dentry *dentry, const char *name); extern int btrfs_xattr_security_init(struct btrfs_trans_handle *trans, diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 82dd063..2783da8 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -722,8 +722,8 @@ extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); /* xattr.c */ -extern int ceph_setxattr(struct dentry *, const char *, const void *, - size_t, int); +extern int ceph_setxattr(struct dentry *, struct inode *, const char *, + const void *, size_t, int); int __ceph_setxattr(struct dentry *, const char *, const void *, size_t, int); ssize_t __ceph_getxattr(struct inode *, const char *, void *, size_t); int __ceph_removexattr(struct dentry *, const char *); diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index 59640c0..663cecc 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -995,14 +995,15 @@ out: return err; } -int ceph_setxattr(struct dentry *dentry, const char *name, +int ceph_setxattr(struct dentry *dentry, struct inode *inode, const char *name, const void *value, size_t size, int flags) { - if (ceph_snap(dentry->d_inode) != CEPH_NOSNAP) + if (ceph_snap(inode) != CEPH_NOSNAP) return -EROFS; if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_setxattr(dentry, name, value, size, flags); + return generic_setxattr(dentry, inode, name, value, size, + flags); return __ceph_setxattr(dentry, name, value, size, flags); } diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index b0eac15..bda690e 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -122,8 +122,8 @@ extern int cifs_readlink(struct dentry *direntry, char __user *buffer, extern int cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname); extern int cifs_removexattr(struct dentry *, const char *); -extern int cifs_setxattr(struct dentry *, const char *, const void *, - size_t, int); +extern int cifs_setxattr(struct dentry *, struct inode *, const char *, + const void *, size_t, int); extern ssize_t cifs_getxattr(struct dentry *, struct inode *, const char *, void *, size_t); extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index d2c738e..2d7e6de 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -97,8 +97,9 @@ remove_ea_exit: return rc; } -int cifs_setxattr(struct dentry *direntry, const char *ea_name, - const void *ea_value, size_t value_size, int flags) +int cifs_setxattr(struct dentry *direntry, struct inode *inode, + const char *ea_name, const void *ea_value, size_t value_size, + int flags) { int rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR @@ -111,9 +112,9 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, if (direntry == NULL) return -EIO; - if (direntry->d_inode == NULL) + if (inode == NULL) return -EIO; - sb = direntry->d_inode->i_sb; + sb = inode->i_sb; if (sb == NULL) return -EIO; @@ -177,12 +178,12 @@ int cifs_setxattr(struct dentry *direntry, const char *ea_name, memcpy(pacl, ea_value, value_size); if (pTcon->ses->server->ops->set_acl) rc = pTcon->ses->server->ops->set_acl(pacl, - value_size, direntry->d_inode, + value_size, inode, full_path, CIFS_ACL_DACL); else rc = -EOPNOTSUPP; if (rc == 0) /* force revalidate of the inode */ - CIFS_I(direntry->d_inode)->time = 0; + CIFS_I(inode)->time = 0; kfree(pacl); } #else diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index bc82bf3..1523f21 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1149,12 +1149,13 @@ ecryptfs_write_metadata_to_contents(struct inode *ecryptfs_inode, static int ecryptfs_write_metadata_to_xattr(struct dentry *ecryptfs_dentry, + struct inode *ecryptfs_inode, char *page_virt, size_t size) { int rc; - rc = ecryptfs_setxattr(ecryptfs_dentry, ECRYPTFS_XATTR_NAME, page_virt, - size, 0); + rc = ecryptfs_setxattr(ecryptfs_dentry, ecryptfs_inode, + ECRYPTFS_XATTR_NAME, page_virt, size, 0); return rc; } @@ -1223,8 +1224,8 @@ int ecryptfs_write_metadata(struct dentry *ecryptfs_dentry, goto out_free; } if (crypt_stat->flags & ECRYPTFS_METADATA_IN_XATTR) - rc = ecryptfs_write_metadata_to_xattr(ecryptfs_dentry, virt, - size); + rc = ecryptfs_write_metadata_to_xattr(ecryptfs_dentry, ecryptfs_inode, + virt, size); else rc = ecryptfs_write_metadata_to_contents(ecryptfs_inode, virt, virt_len); diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h index 0030865..567fbd7 100644 --- a/fs/ecryptfs/ecryptfs_kernel.h +++ b/fs/ecryptfs/ecryptfs_kernel.h @@ -621,8 +621,8 @@ ssize_t ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode, const char *name, void *value, size_t size); int -ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, - size_t size, int flags); +ecryptfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name, + const void *value, size_t size, int flags); int ecryptfs_read_xattr_region(char *page_virt, struct inode *ecryptfs_inode); #ifdef CONFIG_ECRYPT_FS_MESSAGING int ecryptfs_process_response(struct ecryptfs_daemon *daemon, diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 4fb21a7..80006b1 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -1016,7 +1016,8 @@ static int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry, } int -ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, +ecryptfs_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags) { int rc = 0; @@ -1029,8 +1030,8 @@ ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, } rc = vfs_setxattr(lower_dentry, name, value, size, flags); - if (!rc && dentry->d_inode) - fsstack_copy_attr_all(dentry->d_inode, lower_dentry->d_inode); + if (!rc && inode) + fsstack_copy_attr_all(inode, lower_dentry->d_inode); out: return rc; } diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index 4ee2cac..5099360 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -443,7 +443,8 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode) if (size < 0) size = 8; put_unaligned_be64(i_size_read(ecryptfs_inode), xattr_virt); - rc = lower_inode->i_op->setxattr(lower_dentry, ECRYPTFS_XATTR_NAME, + rc = lower_inode->i_op->setxattr(lower_dentry, lower_inode, + ECRYPTFS_XATTR_NAME, xattr_virt, size, 0); mutex_unlock(&lower_inode->i_mutex); if (rc) diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index bef1ee3..1dbc7c1 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -1845,10 +1845,10 @@ static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry, return fuse_update_attributes(inode, stat, NULL, NULL); } -static int fuse_setxattr(struct dentry *entry, const char *name, - const void *value, size_t size, int flags) +static int fuse_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) { - struct inode *inode = entry->d_inode; struct fuse_conn *fc = get_fuse_conn(inode); struct fuse_req *req; struct fuse_setxattr_in inarg; diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index ee95780..eb10bd8 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1851,10 +1851,10 @@ static int gfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, return 0; } -static int gfs2_setxattr(struct dentry *dentry, const char *name, - const void *data, size_t size, int flags) +static int gfs2_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *data, size_t size, + int flags) { - struct inode *inode = dentry->d_inode; struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder gh; int ret; @@ -1864,7 +1864,8 @@ static int gfs2_setxattr(struct dentry *dentry, const char *name, if (ret == 0) { ret = gfs2_rs_alloc(ip); if (ret == 0) - ret = generic_setxattr(dentry, name, data, size, flags); + ret = generic_setxattr(dentry, inode, name, data, + size, flags); gfs2_glock_dq(&gh); } gfs2_holder_uninit(&gh); diff --git a/fs/hfs/attr.c b/fs/hfs/attr.c index ce9719c..39b7123 100644 --- a/fs/hfs/attr.c +++ b/fs/hfs/attr.c @@ -13,10 +13,10 @@ #include "hfs_fs.h" #include "btree.h" -int hfs_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) +int hfs_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) { - struct inode *inode = dentry->d_inode; struct hfs_find_data fd; hfs_cat_rec rec; struct hfs_cat_file *file; diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h index f234e2a..f052215 100644 --- a/fs/hfs/hfs_fs.h +++ b/fs/hfs/hfs_fs.h @@ -211,7 +211,7 @@ extern void hfs_evict_inode(struct inode *); extern void hfs_delete_inode(struct inode *); /* attr.c */ -extern int hfs_setxattr(struct dentry *dentry, const char *name, +extern int hfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name, const void *value, size_t size, int flags); extern ssize_t hfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *value, size_t size); diff --git a/fs/jfs/jfs_xattr.h b/fs/jfs/jfs_xattr.h index e69e14f..01c47b1 100644 --- a/fs/jfs/jfs_xattr.h +++ b/fs/jfs/jfs_xattr.h @@ -54,8 +54,8 @@ struct jfs_ea_list { extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *, size_t, int); -extern int jfs_setxattr(struct dentry *, const char *, const void *, size_t, - int); +extern int jfs_setxattr(struct dentry *, struct inode *, const char *, + const void *, size_t, int); extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t); extern ssize_t jfs_getxattr(struct dentry *, struct inode *, const char *, void *, size_t); extern ssize_t jfs_listxattr(struct dentry *, char *, size_t); diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c index 7b9a8f9..a942358 100644 --- a/fs/jfs/xattr.c +++ b/fs/jfs/xattr.c @@ -846,10 +846,9 @@ int __jfs_setxattr(tid_t tid, struct inode *inode, const char *name, return rc; } -int jfs_setxattr(struct dentry *dentry, const char *name, const void *value, - size_t value_len, int flags) +int jfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name, + const void *value, size_t value_len, int flags) { - struct inode *inode = dentry->d_inode; struct jfs_inode_info *ji = JFS_IP(inode); int rc; tid_t tid; @@ -860,7 +859,8 @@ int jfs_setxattr(struct dentry *dentry, const char *name, const void *value, * for it via sb->s_xattr. */ if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_setxattr(dentry, name, value, value_len, flags); + return generic_setxattr(dentry, inode, name, value, value_len, + flags); if ((rc = can_set_xattr(inode, name, value, value_len))) return rc; @@ -872,7 +872,7 @@ int jfs_setxattr(struct dentry *dentry, const char *name, const void *value, tid = txBegin(inode->i_sb, 0); mutex_lock(&ji->commit_mutex); - rc = __jfs_setxattr(tid, dentry->d_inode, name, value, value_len, + rc = __jfs_setxattr(tid, inode, name, value, value_len, flags); if (!rc) rc = txCommit(tid, 1, &inode, 0); diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c index 332ccaf..d422c76 100644 --- a/fs/kernfs/inode.c +++ b/fs/kernfs/inode.c @@ -169,10 +169,11 @@ static int kernfs_node_setsecdata(struct kernfs_node *kn, void **secdata, return 0; } -int kernfs_iop_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) +int kernfs_iop_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) { - struct kernfs_node *kn = dentry->d_fsdata; + struct kernfs_node *kn = inode->i_private; struct kernfs_iattrs *attrs; void *secdata; int error; @@ -184,11 +185,11 @@ int kernfs_iop_setxattr(struct dentry *dentry, const char *name, if (!strncmp(name, XATTR_SECURITY_PREFIX, XATTR_SECURITY_PREFIX_LEN)) { const char *suffix = name + XATTR_SECURITY_PREFIX_LEN; - error = security_inode_setsecurity(dentry->d_inode, suffix, + error = security_inode_setsecurity(inode, suffix, value, size, flags); if (error) return error; - error = security_inode_getsecctx(dentry->d_inode, + error = security_inode_getsecctx(inode, &secdata, &secdata_len); if (error) return error; diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h index 35b9ee1..b7469cf 100644 --- a/fs/kernfs/kernfs-internal.h +++ b/fs/kernfs/kernfs-internal.h @@ -82,7 +82,8 @@ int kernfs_iop_permission(struct inode *inode, int mask); int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr); int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); -int kernfs_iop_setxattr(struct dentry *dentry, const char *name, const void *value, +int kernfs_iop_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags); int kernfs_iop_removexattr(struct dentry *dentry, const char *name); ssize_t kernfs_iop_getxattr(struct dentry *dentry, struct inode *inode, diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index 04b5520..810969d 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -213,8 +213,9 @@ bool ovl_is_private_xattr(const char *name) return strncmp(name, "trusted.overlay.", 14) == 0; } -int ovl_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) +int ovl_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags) { int err; struct dentry *upperdentry; diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index 66b56ea..214baf0 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -159,8 +159,9 @@ void ovl_cache_free(struct list_head *list); /* inode.c */ int ovl_setattr(struct dentry *dentry, struct iattr *attr); int ovl_permission(struct inode *inode, int mask); -int ovl_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags); +int ovl_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags); ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *value, size_t size); ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size); diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index b5d64cc..5251955 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -787,8 +787,8 @@ reiserfs_getxattr(struct dentry *dentry, struct inode *inode, * dentry->d_inode->i_mutex down */ int -reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value, - size_t size, int flags) +reiserfs_setxattr(struct dentry *dentry, struct inode *inode, const char *name, + const void *value, size_t size, int flags) { const struct xattr_handler *handler; @@ -797,8 +797,8 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value, if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1) return -EOPNOTSUPP; - return handler->set(dentry, dentry->d_inode, name, value, size, - flags, handler->flags); + return handler->set(dentry, inode, name, value, size, flags, + handler->flags); } /* diff --git a/fs/reiserfs/xattr.h b/fs/reiserfs/xattr.h index 033bac1..0762779 100644 --- a/fs/reiserfs/xattr.h +++ b/fs/reiserfs/xattr.h @@ -20,8 +20,9 @@ int reiserfs_permission(struct inode *inode, int mask); #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir) ssize_t reiserfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size); -int reiserfs_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags); +int reiserfs_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, + int flags); ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size); int reiserfs_removexattr(struct dentry *dentry, const char *name); diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index c35436f..7b022a9 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1748,7 +1748,7 @@ int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat); /* xattr.c */ -int ubifs_setxattr(struct dentry *dentry, const char *name, +int ubifs_setxattr(struct dentry *dentry, struct inode *inode, const char *name, const void *value, size_t size, int flags); ssize_t ubifs_getxattr(struct dentry *dentry, struct inode *host, const char *name, void *buf, size_t size); diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c index 698194f..13104e4 100644 --- a/fs/ubifs/xattr.c +++ b/fs/ubifs/xattr.c @@ -294,10 +294,10 @@ static struct inode *iget_xattr(struct ubifs_info *c, ino_t inum) return ERR_PTR(-EINVAL); } -int ubifs_setxattr(struct dentry *dentry, const char *name, +int ubifs_setxattr(struct dentry *dentry, struct inode *host, const char *name, const void *value, size_t size, int flags) { - struct inode *inode, *host = dentry->d_inode; + struct inode *inode; struct ubifs_info *c = host->i_sb->s_fs_info; struct qstr nm = QSTR_INIT(name, strlen(name)); struct ubifs_dent_node *xent; diff --git a/fs/xattr.c b/fs/xattr.c index 87bd926..d6351cb 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -100,7 +100,7 @@ int __vfs_setxattr_noperm(struct dentry *dentry, const char *name, if (issec) inode->i_flags &= ~S_NOSEC; if (inode->i_op->setxattr) { - error = inode->i_op->setxattr(dentry, name, value, size, flags); + error = inode->i_op->setxattr(dentry, inode, name, value, size, flags); if (!error) { fsnotify_xattr(dentry); security_inode_post_setxattr(dentry, name, value, @@ -764,7 +764,8 @@ generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size) * Find the handler for the prefix and dispatch its set() operation. */ int -generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) +generic_setxattr(struct dentry *dentry, struct inode *inode, const char *name, + const void *value, size_t size, int flags) { const struct xattr_handler *handler; @@ -773,8 +774,8 @@ generic_setxattr(struct dentry *dentry, const char *name, const void *value, siz handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name); if (!handler) return -EOPNOTSUPP; - return handler->set(dentry, dentry->d_inode, name, value, size, - flags, handler->flags); + return handler->set(dentry, inode, name, value, size, flags, + handler->flags); } /* diff --git a/include/linux/fs.h b/include/linux/fs.h index 7586207..ba463aa 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1537,7 +1537,8 @@ struct inode_operations { struct inode *, struct dentry *, unsigned int); int (*setattr) (struct dentry *, struct iattr *); int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *); - int (*setxattr) (struct dentry *, const char *,const void *,size_t,int); + int (*setxattr) (struct dentry *, struct inode *, + const char *, const void *, size_t, int); ssize_t (*getxattr) (struct dentry *, struct inode *, const char *, void *, size_t); ssize_t (*listxattr) (struct dentry *, char *, size_t); diff --git a/include/linux/xattr.h b/include/linux/xattr.h index 0027b04..ac6e270 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -46,7 +46,8 @@ int vfs_removexattr(struct dentry *, const char *); ssize_t generic_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size); ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size); -int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); +int generic_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, int flags); int generic_removexattr(struct dentry *dentry, const char *name); ssize_t vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value, size_t size, gfp_t flags); diff --git a/mm/shmem.c b/mm/shmem.c index 8be47d4..f926e5e 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2597,10 +2597,11 @@ static ssize_t shmem_getxattr(struct dentry *dentry, struct inode *inode, return simple_xattr_get(&info->xattrs, name, buffer, size); } -static int shmem_setxattr(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) +static int shmem_setxattr(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, + int flags) { - struct shmem_inode_info *info = SHMEM_I(dentry->d_inode); + struct shmem_inode_info *info = SHMEM_I(inode); int err; /* @@ -2609,7 +2610,8 @@ static int shmem_setxattr(struct dentry *dentry, const char *name, * for it via sb->s_xattr. */ if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_setxattr(dentry, name, value, size, flags); + return generic_setxattr(dentry, inode, name, value, size, + flags); err = shmem_xattr_validate(name); if (err) diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 764e521..444a619 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3139,7 +3139,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode) */ if (isp->smk_flags & SMK_INODE_CHANGED) { isp->smk_flags &= ~SMK_INODE_CHANGED; - rc = inode->i_op->setxattr(dp, + rc = inode->i_op->setxattr(dp, inode, XATTR_NAME_SMACKTRANSMUTE, TRANS_TRUE, TRANS_TRUE_SIZE, 0); -- 1.7.4.1

7 years, 1 month

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[PATCH 3.18.y 4/5] switch xattr_handler->set() to passing dentry and inode separately

by Seung-Woo Kim

From: Al Viro <viro(a)zeniv.linux.org.uk> preparation for similar switch in ->setxattr() (see the next commit for rationale). Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk> [sw0312.kim: backport to 3.18 including ext3] Signed-off-by: Seung-Woo Kim <sw0312.kim(a)samsung.com> --- fs/9p/acl.c | 7 +++---- fs/9p/xattr_security.c | 5 +++-- fs/9p/xattr_trusted.c | 5 +++-- fs/9p/xattr_user.c | 5 +++-- fs/ext2/xattr_security.c | 7 ++++--- fs/ext2/xattr_trusted.c | 7 ++++--- fs/ext2/xattr_user.c | 9 +++++---- fs/ext3/xattr_security.c | 7 ++++--- fs/ext3/xattr_trusted.c | 7 ++++--- fs/ext3/xattr_user.c | 9 +++++---- fs/ext4/xattr_security.c | 7 ++++--- fs/ext4/xattr_trusted.c | 7 ++++--- fs/ext4/xattr_user.c | 9 +++++---- fs/f2fs/xattr.c | 17 ++++++++--------- fs/gfs2/xattr.c | 7 ++++--- fs/hfsplus/xattr.c | 7 ++++--- fs/hfsplus/xattr.h | 4 ++-- fs/hfsplus/xattr_security.c | 7 ++++--- fs/hfsplus/xattr_trusted.c | 7 ++++--- fs/hfsplus/xattr_user.c | 7 ++++--- fs/jffs2/security.c | 7 ++++--- fs/jffs2/xattr_trusted.c | 7 ++++--- fs/jffs2/xattr_user.c | 7 ++++--- fs/nfs/nfs4proc.c | 19 +++++++++---------- fs/ocfs2/xattr.c | 23 +++++++++++++---------- fs/posix_acl.c | 6 +++--- fs/reiserfs/xattr.c | 6 ++++-- fs/reiserfs/xattr_security.c | 8 ++++---- fs/reiserfs/xattr_trusted.c | 8 ++++---- fs/reiserfs/xattr_user.c | 8 ++++---- fs/xattr.c | 5 +++-- fs/xfs/xfs_xattr.c | 7 ++++--- include/linux/xattr.h | 5 +++-- 33 files changed, 144 insertions(+), 119 deletions(-) diff --git a/fs/9p/acl.c b/fs/9p/acl.c index 938e1a4..0928d74 100644 --- a/fs/9p/acl.c +++ b/fs/9p/acl.c @@ -279,14 +279,13 @@ static int v9fs_remote_set_acl(struct dentry *dentry, const char *name, } -static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name, - const void *value, size_t size, - int flags, int type) +static int v9fs_xattr_set_acl(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { int retval; struct posix_acl *acl; struct v9fs_session_info *v9ses; - struct inode *inode = dentry->d_inode; if (strcmp(name, "") != 0) return -EINVAL; diff --git a/fs/9p/xattr_security.c b/fs/9p/xattr_security.c index df692f9..242c1f8 100644 --- a/fs/9p/xattr_security.c +++ b/fs/9p/xattr_security.c @@ -47,8 +47,9 @@ static int v9fs_xattr_security_get(struct dentry *dentry, struct inode *inode, return retval; } -static int v9fs_xattr_security_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int v9fs_xattr_security_set(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { int retval; char *full_name; diff --git a/fs/9p/xattr_trusted.c b/fs/9p/xattr_trusted.c index acfadcf..a1fe7d9 100644 --- a/fs/9p/xattr_trusted.c +++ b/fs/9p/xattr_trusted.c @@ -47,8 +47,9 @@ static int v9fs_xattr_trusted_get(struct dentry *dentry, struct inode *inode, return retval; } -static int v9fs_xattr_trusted_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int v9fs_xattr_trusted_set(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { int retval; char *full_name; diff --git a/fs/9p/xattr_user.c b/fs/9p/xattr_user.c index 9b37675..7a34aca 100644 --- a/fs/9p/xattr_user.c +++ b/fs/9p/xattr_user.c @@ -47,8 +47,9 @@ static int v9fs_xattr_user_get(struct dentry *dentry, struct inode *inode, return retval; } -static int v9fs_xattr_user_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int v9fs_xattr_user_set(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { int retval; char *full_name; diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c index 1d53da4..3ece525 100644 --- a/fs/ext2/xattr_security.c +++ b/fs/ext2/xattr_security.c @@ -33,12 +33,13 @@ ext2_xattr_security_get(struct dentry *unused, struct inode *inode, } static int -ext2_xattr_security_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext2_xattr_security_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ext2_xattr_set(dentry->d_inode, EXT2_XATTR_INDEX_SECURITY, name, + return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name, value, size, flags); } diff --git a/fs/ext2/xattr_trusted.c b/fs/ext2/xattr_trusted.c index dd05f14..d88cbb1 100644 --- a/fs/ext2/xattr_trusted.c +++ b/fs/ext2/xattr_trusted.c @@ -37,12 +37,13 @@ ext2_xattr_trusted_get(struct dentry *unused, struct inode *inode, } static int -ext2_xattr_trusted_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext2_xattr_trusted_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ext2_xattr_set(dentry->d_inode, EXT2_XATTR_INDEX_TRUSTED, name, + return ext2_xattr_set(inode, EXT2_XATTR_INDEX_TRUSTED, name, value, size, flags); } diff --git a/fs/ext2/xattr_user.c b/fs/ext2/xattr_user.c index b3289d5..b96a8f8 100644 --- a/fs/ext2/xattr_user.c +++ b/fs/ext2/xattr_user.c @@ -41,15 +41,16 @@ ext2_xattr_user_get(struct dentry *unused, struct inode *inode, } static int -ext2_xattr_user_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext2_xattr_user_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - if (!test_opt(dentry->d_sb, XATTR_USER)) + if (!test_opt(inode->i_sb, XATTR_USER)) return -EOPNOTSUPP; - return ext2_xattr_set(dentry->d_inode, EXT2_XATTR_INDEX_USER, + return ext2_xattr_set(inode, EXT2_XATTR_INDEX_USER, name, value, size, flags); } diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c index 3e60abc..815f8c4 100644 --- a/fs/ext3/xattr_security.c +++ b/fs/ext3/xattr_security.c @@ -34,12 +34,13 @@ ext3_xattr_security_get(struct dentry *unused, struct inode *inode, } static int -ext3_xattr_security_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext3_xattr_security_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ext3_xattr_set(dentry->d_inode, EXT3_XATTR_INDEX_SECURITY, + return ext3_xattr_set(inode, EXT3_XATTR_INDEX_SECURITY, name, value, size, flags); } diff --git a/fs/ext3/xattr_trusted.c b/fs/ext3/xattr_trusted.c index 9fe035b..f9e1769 100644 --- a/fs/ext3/xattr_trusted.c +++ b/fs/ext3/xattr_trusted.c @@ -37,12 +37,13 @@ ext3_xattr_trusted_get(struct dentry *unused, struct inode *inode, } static int -ext3_xattr_trusted_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext3_xattr_trusted_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ext3_xattr_set(dentry->d_inode, EXT3_XATTR_INDEX_TRUSTED, name, + return ext3_xattr_set(inode, EXT3_XATTR_INDEX_TRUSTED, name, value, size, flags); } diff --git a/fs/ext3/xattr_user.c b/fs/ext3/xattr_user.c index 8856f51..ce7b23d 100644 --- a/fs/ext3/xattr_user.c +++ b/fs/ext3/xattr_user.c @@ -39,14 +39,15 @@ ext3_xattr_user_get(struct dentry *unused, struct inode *inode, } static int -ext3_xattr_user_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext3_xattr_user_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - if (!test_opt(dentry->d_sb, XATTR_USER)) + if (!test_opt(inode->i_sb, XATTR_USER)) return -EOPNOTSUPP; - return ext3_xattr_set(dentry->d_inode, EXT3_XATTR_INDEX_USER, + return ext3_xattr_set(inode, EXT3_XATTR_INDEX_USER, name, value, size, flags); } diff --git a/fs/ext4/xattr_security.c b/fs/ext4/xattr_security.c index 7704e94..c0dc82d 100644 --- a/fs/ext4/xattr_security.c +++ b/fs/ext4/xattr_security.c @@ -38,12 +38,13 @@ ext4_xattr_security_get(struct dentry *unused, struct inode *inode, } static int -ext4_xattr_security_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext4_xattr_security_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ext4_xattr_set(dentry->d_inode, EXT4_XATTR_INDEX_SECURITY, + return ext4_xattr_set(inode, EXT4_XATTR_INDEX_SECURITY, name, value, size, flags); } diff --git a/fs/ext4/xattr_trusted.c b/fs/ext4/xattr_trusted.c index 7bf8df2..42d6db0 100644 --- a/fs/ext4/xattr_trusted.c +++ b/fs/ext4/xattr_trusted.c @@ -41,12 +41,13 @@ ext4_xattr_trusted_get(struct dentry *unused, struct inode *inode, } static int -ext4_xattr_trusted_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext4_xattr_trusted_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ext4_xattr_set(dentry->d_inode, EXT4_XATTR_INDEX_TRUSTED, + return ext4_xattr_set(inode, EXT4_XATTR_INDEX_TRUSTED, name, value, size, flags); } diff --git a/fs/ext4/xattr_user.c b/fs/ext4/xattr_user.c index afad2827..f37a4ff 100644 --- a/fs/ext4/xattr_user.c +++ b/fs/ext4/xattr_user.c @@ -42,14 +42,15 @@ ext4_xattr_user_get(struct dentry *unused, struct inode *inode, } static int -ext4_xattr_user_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +ext4_xattr_user_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - if (!test_opt(dentry->d_sb, XATTR_USER)) + if (!test_opt(inode->i_sb, XATTR_USER)) return -EOPNOTSUPP; - return ext4_xattr_set(dentry->d_inode, EXT4_XATTR_INDEX_USER, + return ext4_xattr_set(inode, EXT4_XATTR_INDEX_USER, name, value, size, flags); } diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c index a6e15c5..3f4705f 100644 --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -87,10 +87,11 @@ static int f2fs_xattr_generic_get(struct dentry *unused, struct inode *inode, return f2fs_getxattr(inode, type, name, buffer, size); } -static int f2fs_xattr_generic_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int f2fs_xattr_generic_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { - struct f2fs_sb_info *sbi = F2FS_SB(dentry->d_sb); + struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); switch (type) { case F2FS_XATTR_INDEX_USER: @@ -109,8 +110,7 @@ static int f2fs_xattr_generic_set(struct dentry *dentry, const char *name, if (strcmp(name, "") == 0) return -EINVAL; - return f2fs_setxattr(dentry->d_inode, type, name, - value, size, NULL, flags); + return f2fs_setxattr(inode, type, name, value, size, NULL, flags); } static size_t f2fs_xattr_advise_list(struct dentry *dentry, char *list, @@ -138,11 +138,10 @@ static int f2fs_xattr_advise_get(struct dentry *unused, struct inode *inode, return sizeof(char); } -static int f2fs_xattr_advise_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int f2fs_xattr_advise_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { - struct inode *inode = dentry->d_inode; - if (strcmp(name, "") != 0) return -EINVAL; if (!inode_owner_or_capable(inode)) diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c index 0c15e9f..96e47b0 100644 --- a/fs/gfs2/xattr.c +++ b/fs/gfs2/xattr.c @@ -1227,10 +1227,11 @@ int __gfs2_xattr_set(struct inode *inode, const char *name, return error; } -static int gfs2_xattr_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int gfs2_xattr_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { - return __gfs2_xattr_set(dentry->d_inode, name, value, + return __gfs2_xattr_set(inode, name, value, size, flags, type); } diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c index 1377437..1ac46a2 100644 --- a/fs/hfsplus/xattr.c +++ b/fs/hfsplus/xattr.c @@ -826,8 +826,9 @@ static int hfsplus_osx_getxattr(struct dentry *unused, struct inode *inode, return hfsplus_getxattr(inode, name, buffer, size); } -static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name, - const void *buffer, size_t size, int flags, int type) +static int hfsplus_osx_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags, int type) { if (!strcmp(name, "")) return -EINVAL; @@ -845,7 +846,7 @@ static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name, * creates), so we pass the name through unmodified (after * ensuring it doesn't conflict with another namespace). */ - return hfsplus_setxattr(dentry, name, buffer, size, flags); + return hfsplus_setxattr(inode, name, buffer, size, flags); } static size_t hfsplus_osx_listxattr(struct dentry *dentry, char *list, diff --git a/fs/hfsplus/xattr.h b/fs/hfsplus/xattr.h index ba9d80d7..28337f5 100644 --- a/fs/hfsplus/xattr.h +++ b/fs/hfsplus/xattr.h @@ -21,10 +21,10 @@ extern const struct xattr_handler *hfsplus_xattr_handlers[]; int __hfsplus_setxattr(struct inode *inode, const char *name, const void *value, size_t size, int flags); -static inline int hfsplus_setxattr(struct dentry *dentry, const char *name, +static inline int hfsplus_setxattr(struct inode *inode, const char *name, const void *value, size_t size, int flags) { - return __hfsplus_setxattr(dentry->d_inode, name, value, size, flags); + return __hfsplus_setxattr(inode, name, value, size, flags); } ssize_t __hfsplus_getxattr(struct inode *inode, const char *name, diff --git a/fs/hfsplus/xattr_security.c b/fs/hfsplus/xattr_security.c index 77d7f29..ccbc7df 100644 --- a/fs/hfsplus/xattr_security.c +++ b/fs/hfsplus/xattr_security.c @@ -35,8 +35,9 @@ static int hfsplus_security_getxattr(struct dentry *unused, struct inode *inode, return res; } -static int hfsplus_security_setxattr(struct dentry *dentry, const char *name, - const void *buffer, size_t size, int flags, int type) +static int hfsplus_security_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags, int type) { char *xattr_name; int res; @@ -51,7 +52,7 @@ static int hfsplus_security_setxattr(struct dentry *dentry, const char *name, strcpy(xattr_name, XATTR_SECURITY_PREFIX); strcpy(xattr_name + XATTR_SECURITY_PREFIX_LEN, name); - res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags); + res = hfsplus_setxattr(inode, xattr_name, buffer, size, flags); kfree(xattr_name); return res; } diff --git a/fs/hfsplus/xattr_trusted.c b/fs/hfsplus/xattr_trusted.c index 5c9e7a0..5d54660 100644 --- a/fs/hfsplus/xattr_trusted.c +++ b/fs/hfsplus/xattr_trusted.c @@ -33,8 +33,9 @@ static int hfsplus_trusted_getxattr(struct dentry *unused, struct inode *inode, return res; } -static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name, - const void *buffer, size_t size, int flags, int type) +static int hfsplus_trusted_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags, int type) { char *xattr_name; int res; @@ -49,7 +50,7 @@ static int hfsplus_trusted_setxattr(struct dentry *dentry, const char *name, strcpy(xattr_name, XATTR_TRUSTED_PREFIX); strcpy(xattr_name + XATTR_TRUSTED_PREFIX_LEN, name); - res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags); + res = hfsplus_setxattr(inode, xattr_name, buffer, size, flags); kfree(xattr_name); return res; } diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c index c7c424c..931c054 100644 --- a/fs/hfsplus/xattr_user.c +++ b/fs/hfsplus/xattr_user.c @@ -33,8 +33,9 @@ static int hfsplus_user_getxattr(struct dentry *unused, struct inode *inode, return res; } -static int hfsplus_user_setxattr(struct dentry *dentry, const char *name, - const void *buffer, size_t size, int flags, int type) +static int hfsplus_user_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags, int type) { char *xattr_name; int res; @@ -49,7 +50,7 @@ static int hfsplus_user_setxattr(struct dentry *dentry, const char *name, strcpy(xattr_name, XATTR_USER_PREFIX); strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name); - res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags); + res = hfsplus_setxattr(inode, xattr_name, buffer, size, flags); kfree(xattr_name); return res; } diff --git a/fs/jffs2/security.c b/fs/jffs2/security.c index 77a9db6..f8ee8a2 100644 --- a/fs/jffs2/security.c +++ b/fs/jffs2/security.c @@ -59,13 +59,14 @@ static int jffs2_security_getxattr(struct dentry *unused, struct inode *inode, name, buffer, size); } -static int jffs2_security_setxattr(struct dentry *dentry, const char *name, - const void *buffer, size_t size, int flags, int type) +static int jffs2_security_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags, int type) { if (!strcmp(name, "")) return -EINVAL; - return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_SECURITY, + return do_jffs2_setxattr(inode, JFFS2_XPREFIX_SECURITY, name, buffer, size, flags); } diff --git a/fs/jffs2/xattr_trusted.c b/fs/jffs2/xattr_trusted.c index 7b2fe19..0f36f46 100644 --- a/fs/jffs2/xattr_trusted.c +++ b/fs/jffs2/xattr_trusted.c @@ -26,12 +26,13 @@ static int jffs2_trusted_getxattr(struct dentry *unused, struct inode *inode, name, buffer, size); } -static int jffs2_trusted_setxattr(struct dentry *dentry, const char *name, - const void *buffer, size_t size, int flags, int type) +static int jffs2_trusted_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags, int type) { if (!strcmp(name, "")) return -EINVAL; - return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_TRUSTED, + return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size, flags); } diff --git a/fs/jffs2/xattr_user.c b/fs/jffs2/xattr_user.c index 0d8b125..62551b6 100644 --- a/fs/jffs2/xattr_user.c +++ b/fs/jffs2/xattr_user.c @@ -26,12 +26,13 @@ static int jffs2_user_getxattr(struct dentry *unused, struct inode *inode, name, buffer, size); } -static int jffs2_user_setxattr(struct dentry *dentry, const char *name, - const void *buffer, size_t size, int flags, int type) +static int jffs2_user_setxattr(struct dentry *unused, struct inode *inode, + const char *name, const void *buffer, + size_t size, int flags, int type) { if (!strcmp(name, "")) return -EINVAL; - return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_USER, + return do_jffs2_setxattr(inode, JFFS2_XPREFIX_USER, name, buffer, size, flags); } diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 3e0df4a1..7ccecfb 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4781,12 +4781,11 @@ static int nfs4_do_set_security_label(struct inode *inode, } static int -nfs4_set_security_label(struct dentry *dentry, const void *buf, size_t buflen) +nfs4_set_security_label(struct inode *inode, const void *buf, size_t buflen) { struct nfs4_label ilabel, *olabel = NULL; struct nfs_fattr fattr; struct rpc_cred *cred; - struct inode *inode = dentry->d_inode; int status; if (!nfs_server_capable(inode, NFS_CAP_SECURITY_LABEL)) @@ -6037,14 +6036,14 @@ nfs4_release_lockowner(struct nfs_server *server, struct nfs4_lock_state *lsp) #define XATTR_NAME_NFSV4_ACL "system.nfs4_acl" -static int nfs4_xattr_set_nfs4_acl(struct dentry *dentry, const char *key, - const void *buf, size_t buflen, - int flags, int type) +static int nfs4_xattr_set_nfs4_acl(struct dentry *unused, struct inode *inode, + const char *key, const void *buf, + size_t buflen, int flags, int type) { if (strcmp(key, "") != 0) return -EINVAL; - return nfs4_proc_set_acl(dentry->d_inode, buf, buflen); + return nfs4_proc_set_acl(inode, buf, buflen); } static int nfs4_xattr_get_nfs4_acl(struct dentry *unused, struct inode *inode, @@ -6077,12 +6076,12 @@ static inline int nfs4_server_supports_labels(struct nfs_server *server) return server->caps & NFS_CAP_SECURITY_LABEL; } -static int nfs4_xattr_set_nfs4_label(struct dentry *dentry, const char *key, - const void *buf, size_t buflen, - int flags, int type) +static int nfs4_xattr_set_nfs4_label(struct dentry *unused, struct inode *inode, + const char *key, const void *buf, + size_t buflen, int flags, int type) { if (security_ismaclabel(key)) - return nfs4_set_security_label(dentry, buf, buflen); + return nfs4_set_security_label(inode, buf, buflen); return -EOPNOTSUPP; } diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c index 8f42eaa..2d6aa1a 100644 --- a/fs/ocfs2/xattr.c +++ b/fs/ocfs2/xattr.c @@ -7262,13 +7262,14 @@ static int ocfs2_xattr_security_get(struct dentry *unused, struct inode *inode, name, buffer, size); } -static int ocfs2_xattr_security_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int ocfs2_xattr_security_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ocfs2_xattr_set(dentry->d_inode, OCFS2_XATTR_INDEX_SECURITY, + return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_SECURITY, name, value, size, flags); } @@ -7353,13 +7354,14 @@ static int ocfs2_xattr_trusted_get(struct dentry *unused, struct inode *inode, name, buffer, size); } -static int ocfs2_xattr_trusted_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int ocfs2_xattr_trusted_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { if (strcmp(name, "") == 0) return -EINVAL; - return ocfs2_xattr_set(dentry->d_inode, OCFS2_XATTR_INDEX_TRUSTED, + return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_TRUSTED, name, value, size, flags); } @@ -7406,17 +7408,18 @@ static int ocfs2_xattr_user_get(struct dentry *unused, struct inode *inode, buffer, size); } -static int ocfs2_xattr_user_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +static int ocfs2_xattr_user_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int type) { - struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb); + struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); if (strcmp(name, "") == 0) return -EINVAL; if (osb->s_mount_opt & OCFS2_MOUNT_NOUSERXATTR) return -EOPNOTSUPP; - return ocfs2_xattr_set(dentry->d_inode, OCFS2_XATTR_INDEX_USER, + return ocfs2_xattr_set(inode, OCFS2_XATTR_INDEX_USER, name, value, size, flags); } diff --git a/fs/posix_acl.c b/fs/posix_acl.c index a9d6c01..81b0008 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -841,10 +841,10 @@ set_posix_acl(struct inode *inode, int type, struct posix_acl *acl) EXPORT_SYMBOL(set_posix_acl); static int -posix_acl_xattr_set(struct dentry *dentry, const char *name, - const void *value, size_t size, int flags, int type) +posix_acl_xattr_set(struct dentry *dentry, struct inode *inode, + const char *name, const void *value, size_t size, + int flags, int type) { - struct inode *inode = dentry->d_inode; struct posix_acl *acl = NULL; int ret; diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index 40d4fcc..b5d64cc 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -797,7 +797,8 @@ reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value, if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1) return -EOPNOTSUPP; - return handler->set(dentry, name, value, size, flags, handler->flags); + return handler->set(dentry, dentry->d_inode, name, value, size, + flags, handler->flags); } /* @@ -814,7 +815,8 @@ int reiserfs_removexattr(struct dentry *dentry, const char *name) if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1) return -EOPNOTSUPP; - return handler->set(dentry, name, NULL, 0, XATTR_REPLACE, handler->flags); + return handler->set(dentry, dentry->d_inode, name, NULL, 0, + XATTR_REPLACE, handler->flags); } struct listxattr_buf { diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c index dad61a9..d68b8da 100644 --- a/fs/reiserfs/xattr_security.c +++ b/fs/reiserfs/xattr_security.c @@ -22,16 +22,16 @@ security_get(struct dentry *unused, struct inode *inode, const char *name, } static int -security_set(struct dentry *dentry, const char *name, const void *buffer, - size_t size, int flags, int handler_flags) +security_set(struct dentry *unused, struct inode *inode, const char *name, + const void *buffer, size_t size, int flags, int handler_flags) { if (strlen(name) < sizeof(XATTR_SECURITY_PREFIX)) return -EINVAL; - if (IS_PRIVATE(dentry->d_inode)) + if (IS_PRIVATE(inode)) return -EPERM; - return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags); + return reiserfs_xattr_set(inode, name, buffer, size, flags); } static size_t security_list(struct dentry *dentry, char *list, size_t list_len, diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c index 9e3cf4a..8202daa 100644 --- a/fs/reiserfs/xattr_trusted.c +++ b/fs/reiserfs/xattr_trusted.c @@ -21,16 +21,16 @@ trusted_get(struct dentry *unused, struct inode *inode, const char *name, } static int -trusted_set(struct dentry *dentry, const char *name, const void *buffer, - size_t size, int flags, int handler_flags) +trusted_set(struct dentry *unused, struct inode *inode, const char *name, + const void *buffer, size_t size, int flags, int handler_flags) { if (strlen(name) < sizeof(XATTR_TRUSTED_PREFIX)) return -EINVAL; - if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(dentry->d_inode)) + if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)) return -EPERM; - return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags); + return reiserfs_xattr_set(inode, name, buffer, size, flags); } static size_t trusted_list(struct dentry *dentry, char *list, size_t list_size, diff --git a/fs/reiserfs/xattr_user.c b/fs/reiserfs/xattr_user.c index 8c0d2ef..5d0ec05 100644 --- a/fs/reiserfs/xattr_user.c +++ b/fs/reiserfs/xattr_user.c @@ -19,15 +19,15 @@ user_get(struct dentry *unused, struct inode *inode, const char *name, } static int -user_set(struct dentry *dentry, const char *name, const void *buffer, - size_t size, int flags, int handler_flags) +user_set(struct dentry *unused, struct inode *inode, const char *name, + const void *buffer, size_t size, int flags, int handler_flags) { if (strlen(name) < sizeof(XATTR_USER_PREFIX)) return -EINVAL; - if (!reiserfs_xattrs_user(dentry->d_sb)) + if (!reiserfs_xattrs_user(inode->i_sb)) return -EOPNOTSUPP; - return reiserfs_xattr_set(dentry->d_inode, name, buffer, size, flags); + return reiserfs_xattr_set(inode, name, buffer, size, flags); } static size_t user_list(struct dentry *dentry, char *list, size_t list_size, diff --git a/fs/xattr.c b/fs/xattr.c index b04fc6b..87bd926 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -773,7 +773,8 @@ generic_setxattr(struct dentry *dentry, const char *name, const void *value, siz handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name); if (!handler) return -EOPNOTSUPP; - return handler->set(dentry, name, value, size, flags, handler->flags); + return handler->set(dentry, dentry->d_inode, name, value, size, + flags, handler->flags); } /* @@ -788,7 +789,7 @@ generic_removexattr(struct dentry *dentry, const char *name) handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name); if (!handler) return -EOPNOTSUPP; - return handler->set(dentry, name, NULL, 0, + return handler->set(dentry, dentry->d_inode, name, NULL, 0, XATTR_REPLACE, handler->flags); } diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c index bd4a6ee..8e19527 100644 --- a/fs/xfs/xfs_xattr.c +++ b/fs/xfs/xfs_xattr.c @@ -56,10 +56,11 @@ xfs_xattr_get(struct dentry *unused, struct inode *inode, const char *name, } static int -xfs_xattr_set(struct dentry *dentry, const char *name, const void *value, - size_t size, int flags, int xflags) +xfs_xattr_set(struct dentry *unused, struct inode *inode, + const char *name, const void *value, + size_t size, int flags, int xflags) { - struct xfs_inode *ip = XFS_I(dentry->d_inode); + struct xfs_inode *ip = XFS_I(inode); if (strcmp(name, "") == 0) return -EINVAL; diff --git a/include/linux/xattr.h b/include/linux/xattr.h index ad4c869..0027b04 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -26,8 +26,9 @@ struct xattr_handler { const char *name, size_t name_len, int handler_flags); int (*get)(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size, int handler_flags); - int (*set)(struct dentry *dentry, const char *name, const void *buffer, - size_t size, int flags, int handler_flags); + int (*set)(struct dentry *dentry, struct inode *inode, const char *name, + const void *buffer, size_t size, int flags, + int handler_flags); }; struct xattr { -- 1.7.4.1

7 years, 1 month

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[PATCH 3.18.y 3/5] security_d_instantiate(): move to the point prior to attaching dentry to inode

by Seung-Woo Kim

From: Al Viro <viro(a)zeniv.linux.org.uk> commit b96809173e94ea2fa8c19c2e40e8545a1821bf57 upstream. Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk> [sw0312.kim: backport to 3.18] Signed-off-by: Seung-Woo Kim <sw0312.kim(a)samsung.com> --- fs/dcache.c | 18 +++++++----------- 1 files changed, 7 insertions(+), 11 deletions(-) diff --git a/fs/dcache.c b/fs/dcache.c index a34d401..6a4290a 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -1729,12 +1729,12 @@ static void __d_instantiate(struct dentry *dentry, struct inode *inode) void d_instantiate(struct dentry *entry, struct inode * inode) { BUG_ON(!hlist_unhashed(&entry->d_u.d_alias)); + security_d_instantiate(entry, inode); if (inode) spin_lock(&inode->i_lock); __d_instantiate(entry, inode); if (inode) spin_unlock(&inode->i_lock); - security_d_instantiate(entry, inode); } EXPORT_SYMBOL(d_instantiate); @@ -1795,16 +1795,15 @@ struct dentry *d_instantiate_unique(struct dentry *entry, struct inode *inode) BUG_ON(!hlist_unhashed(&entry->d_u.d_alias)); + security_d_instantiate(entry, inode); if (inode) spin_lock(&inode->i_lock); result = __d_instantiate_unique(entry, inode); if (inode) spin_unlock(&inode->i_lock); - if (!result) { - security_d_instantiate(entry, inode); + if (!result) return NULL; - } BUG_ON(!d_unhashed(result)); iput(inode); @@ -1826,6 +1825,7 @@ int d_instantiate_no_diralias(struct dentry *entry, struct inode *inode) { BUG_ON(!hlist_unhashed(&entry->d_u.d_alias)); + security_d_instantiate(entry, inode); spin_lock(&inode->i_lock); if (S_ISDIR(inode->i_mode) && !hlist_empty(&inode->i_dentry)) { spin_unlock(&inode->i_lock); @@ -1834,7 +1834,6 @@ int d_instantiate_no_diralias(struct dentry *entry, struct inode *inode) } __d_instantiate(entry, inode); spin_unlock(&inode->i_lock); - security_d_instantiate(entry, inode); return 0; } @@ -1930,6 +1929,7 @@ static struct dentry *__d_obtain_alias(struct inode *inode, int disconnected) goto out_iput; } + security_d_instantiate(tmp, inode); spin_lock(&inode->i_lock); res = __d_find_any_alias(inode); if (res) { @@ -1953,13 +1953,10 @@ static struct dentry *__d_obtain_alias(struct inode *inode, int disconnected) hlist_bl_unlock(&tmp->d_sb->s_anon); spin_unlock(&tmp->d_lock); spin_unlock(&inode->i_lock); - security_d_instantiate(tmp, inode); return tmp; out_iput: - if (res && !IS_ERR(res)) - security_d_instantiate(res, inode); iput(inode); return res; } @@ -2817,6 +2814,7 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry) return ERR_CAST(inode); if (inode && S_ISDIR(inode->i_mode)) { + security_d_instantiate(dentry, inode); spin_lock(&inode->i_lock); new = __d_find_any_alias(inode); if (new) { @@ -2836,13 +2834,11 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry) __d_move(new, dentry, false); write_sequnlock(&rename_lock); spin_unlock(&inode->i_lock); - security_d_instantiate(new, inode); iput(inode); } else { /* already taking inode->i_lock, so d_add() by hand */ __d_instantiate(dentry, inode); spin_unlock(&inode->i_lock); - security_d_instantiate(dentry, inode); d_rehash(dentry); } } else { @@ -2876,6 +2872,7 @@ struct dentry *d_materialise_unique(struct dentry *dentry, struct inode *inode) goto out_nolock; } + security_d_instantiate(dentry, inode); spin_lock(&inode->i_lock); if (S_ISDIR(inode->i_mode)) { @@ -2927,7 +2924,6 @@ found: spin_unlock(&inode->i_lock); out_nolock: if (actual == dentry) { - security_d_instantiate(dentry, inode); return NULL; } -- 1.7.4.1

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[PATCH 3.18.y 2/5] ->getxattr(): pass dentry and inode as separate arguments

by Seung-Woo Kim

From: Al Viro <viro(a)zeniv.linux.org.uk> commit ce23e640133484eebc20ca7b7668388213e11327 upstream. Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk> [sw0312.kim: backport to 3.18] Signed-off-by: Seung-Woo Kim <sw0312.kim(a)samsung.com> --- Documentation/filesystems/porting | 6 +++++ .../staging/lustre/lustre/llite/llite_internal.h | 4 +- drivers/staging/lustre/lustre/llite/xattr.c | 6 +--- fs/bad_inode.c | 4 +- fs/btrfs/xattr.c | 8 +++--- fs/btrfs/xattr.h | 4 +- fs/ceph/super.h | 3 +- fs/ceph/xattr.c | 8 +++--- fs/cifs/cifsfs.h | 2 +- fs/cifs/xattr.c | 10 ++++---- fs/ecryptfs/crypto.c | 5 +++- fs/ecryptfs/ecryptfs_kernel.h | 4 +- fs/ecryptfs/inode.c | 23 ++++++++++--------- fs/ecryptfs/mmap.c | 3 +- fs/fuse/dir.c | 5 +-- fs/gfs2/inode.c | 9 +++---- fs/hfs/attr.c | 5 +-- fs/hfs/hfs_fs.h | 4 +- fs/jfs/jfs_xattr.h | 2 +- fs/jfs/xattr.c | 8 +++--- fs/kernfs/inode.c | 6 ++-- fs/kernfs/kernfs-internal.h | 4 +- fs/overlayfs/inode.c | 4 +- fs/overlayfs/overlayfs.h | 4 +- fs/overlayfs/super.c | 2 +- fs/reiserfs/xattr.c | 8 +++--- fs/reiserfs/xattr.h | 4 +- fs/ubifs/ubifs.h | 4 +- fs/ubifs/xattr.c | 6 ++-- fs/xattr.c | 13 ++++++----- include/linux/fs.h | 3 +- include/linux/xattr.h | 2 +- mm/shmem.c | 8 +++--- net/socket.c | 2 +- security/commoncap.c | 6 ++-- security/integrity/evm/evm_main.c | 2 +- security/selinux/hooks.c | 9 ++++--- security/smack/smack_lsm.c | 4 +- 38 files changed, 112 insertions(+), 102 deletions(-) diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 0f3a139..daf9acd 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -463,3 +463,9 @@ in your dentry operations instead. of the in-tree instances did). inode_hash_lock is still held, of course, so they are still serialized wrt removal from inode hash, as well as wrt set() callback of iget5_locked(). +-- +[mandatory] + ->getxattr() and xattr_handler.get() get dentry and inode passed separately. + dentry might be yet to be attached to inode, so do _not_ use its ->d_inode + in the instances. Rationale: !@#!@# security_d_instantiate() needs to be + called before we attach dentry to inode. diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 36aa0fd..442fe5b 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -1070,8 +1070,8 @@ static inline __u64 ll_file_maxbytes(struct inode *inode) /* llite/xattr.c */ int ll_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); -ssize_t ll_getxattr(struct dentry *dentry, const char *name, - void *buffer, size_t size); +ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size); ssize_t ll_listxattr(struct dentry *dentry, char *buffer, size_t size); int ll_removexattr(struct dentry *dentry, const char *name); diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c index 252a619..fc4b95d3 100644 --- a/drivers/staging/lustre/lustre/llite/xattr.c +++ b/drivers/staging/lustre/lustre/llite/xattr.c @@ -455,11 +455,9 @@ out: return rc; } -ssize_t ll_getxattr(struct dentry *dentry, const char *name, - void *buffer, size_t size) +ssize_t ll_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { - struct inode *inode = dentry->d_inode; - LASSERT(inode); LASSERT(name); diff --git a/fs/bad_inode.c b/fs/bad_inode.c index afd2b44..336c284 100644 --- a/fs/bad_inode.c +++ b/fs/bad_inode.c @@ -253,8 +253,8 @@ static int bad_inode_setxattr(struct dentry *dentry, const char *name, return -EIO; } -static ssize_t bad_inode_getxattr(struct dentry *dentry, const char *name, - void *buffer, size_t size) +static ssize_t bad_inode_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { return -EIO; } diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c index fbb0533..6fa0196 100644 --- a/fs/btrfs/xattr.c +++ b/fs/btrfs/xattr.c @@ -393,8 +393,8 @@ static int btrfs_is_valid_xattr(const char *name) return 0; } -ssize_t btrfs_getxattr(struct dentry *dentry, const char *name, - void *buffer, size_t size) +ssize_t btrfs_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { int ret; @@ -404,12 +404,12 @@ ssize_t btrfs_getxattr(struct dentry *dentry, const char *name, * for it via sb->s_xattr. */ if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_getxattr(dentry, name, buffer, size); + return generic_getxattr(dentry, inode, name, buffer, size); ret = btrfs_is_valid_xattr(name); if (ret) return ret; - return __btrfs_getxattr(dentry->d_inode, name, buffer, size); + return __btrfs_getxattr(inode, name, buffer, size); } int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, diff --git a/fs/btrfs/xattr.h b/fs/btrfs/xattr.h index 5049608..8ee4329 100644 --- a/fs/btrfs/xattr.h +++ b/fs/btrfs/xattr.h @@ -28,8 +28,8 @@ extern ssize_t __btrfs_getxattr(struct inode *inode, const char *name, extern int __btrfs_setxattr(struct btrfs_trans_handle *trans, struct inode *inode, const char *name, const void *value, size_t size, int flags); -extern ssize_t btrfs_getxattr(struct dentry *dentry, const char *name, - void *buffer, size_t size); +extern ssize_t btrfs_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size); extern int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); extern int btrfs_removexattr(struct dentry *dentry, const char *name); diff --git a/fs/ceph/super.h b/fs/ceph/super.h index b82f507..82dd063 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -727,7 +727,8 @@ extern int ceph_setxattr(struct dentry *, const char *, const void *, int __ceph_setxattr(struct dentry *, const char *, const void *, size_t, int); ssize_t __ceph_getxattr(struct inode *, const char *, void *, size_t); int __ceph_removexattr(struct dentry *, const char *); -extern ssize_t ceph_getxattr(struct dentry *, const char *, void *, size_t); +extern ssize_t ceph_getxattr(struct dentry *, struct inode *, const char *, + void *, size_t); extern ssize_t ceph_listxattr(struct dentry *, char *, size_t); extern int ceph_removexattr(struct dentry *, const char *); extern void __ceph_build_xattrs_blob(struct ceph_inode_info *ci); diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c index f827d55..59640c0 100644 --- a/fs/ceph/xattr.c +++ b/fs/ceph/xattr.c @@ -773,13 +773,13 @@ out: return err; } -ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value, - size_t size) +ssize_t ceph_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *value, size_t size) { if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_getxattr(dentry, name, value, size); + return generic_getxattr(dentry, inode, name, value, size); - return __ceph_getxattr(dentry->d_inode, name, value, size); + return __ceph_getxattr(inode, name, value, size); } ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size) diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index 15da9e3..b0eac15 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -124,7 +124,7 @@ extern int cifs_symlink(struct inode *inode, struct dentry *direntry, extern int cifs_removexattr(struct dentry *, const char *); extern int cifs_setxattr(struct dentry *, const char *, const void *, size_t, int); -extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t); +extern ssize_t cifs_getxattr(struct dentry *, struct inode *, const char *, void *, size_t); extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); diff --git a/fs/cifs/xattr.c b/fs/cifs/xattr.c index 72a4d10..d2c738e 100644 --- a/fs/cifs/xattr.c +++ b/fs/cifs/xattr.c @@ -232,8 +232,8 @@ set_ea_exit: return rc; } -ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, - void *ea_value, size_t buf_size) +ssize_t cifs_getxattr(struct dentry *direntry, struct inode *inode, + const char *ea_name, void *ea_value, size_t buf_size) { ssize_t rc = -EOPNOTSUPP; #ifdef CONFIG_CIFS_XATTR @@ -246,9 +246,9 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, if (direntry == NULL) return -EIO; - if (direntry->d_inode == NULL) + if (inode == NULL) return -EIO; - sb = direntry->d_inode->i_sb; + sb = inode->i_sb; if (sb == NULL) return -EIO; @@ -324,7 +324,7 @@ ssize_t cifs_getxattr(struct dentry *direntry, const char *ea_name, goto get_ea_exit; /* rc already EOPNOTSUPP */ pacl = pTcon->ses->server->ops->get_acl(cifs_sb, - direntry->d_inode, full_path, &acllen); + inode, full_path, &acllen); if (IS_ERR(pacl)) { rc = PTR_ERR(pacl); cifs_dbg(VFS, "%s: error %zd getting sec desc\n", diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index 31b148f..bc82bf3 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1377,7 +1377,9 @@ int ecryptfs_read_xattr_region(char *page_virt, struct inode *ecryptfs_inode) ssize_t size; int rc = 0; - size = ecryptfs_getxattr_lower(lower_dentry, ECRYPTFS_XATTR_NAME, + size = ecryptfs_getxattr_lower(lower_dentry, + ecryptfs_inode_to_lower(ecryptfs_inode), + ECRYPTFS_XATTR_NAME, page_virt, ECRYPTFS_DEFAULT_EXTENT_SIZE); if (size < 0) { if (unlikely(ecryptfs_verbosity > 0)) @@ -1399,6 +1401,7 @@ int ecryptfs_read_and_validate_xattr_region(struct dentry *dentry, int rc; rc = ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry), + ecryptfs_inode_to_lower(inode), ECRYPTFS_XATTR_NAME, file_size, ECRYPTFS_SIZE_AND_MARKER_BYTES); if (rc < ECRYPTFS_SIZE_AND_MARKER_BYTES) diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h index 4682bef..0030865 100644 --- a/fs/ecryptfs/ecryptfs_kernel.h +++ b/fs/ecryptfs/ecryptfs_kernel.h @@ -618,8 +618,8 @@ ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat, unsigned char *src, struct dentry *ecryptfs_dentry); int ecryptfs_truncate(struct dentry *dentry, loff_t new_length); ssize_t -ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name, - void *value, size_t size); +ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode, + const char *name, void *value, size_t size); int ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 885c6a9..4fb21a7 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -1036,29 +1036,30 @@ out: } ssize_t -ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name, - void *value, size_t size) +ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode, + const char *name, void *value, size_t size) { int rc = 0; - if (!lower_dentry->d_inode->i_op->getxattr) { + if (!lower_inode->i_op->getxattr) { rc = -EOPNOTSUPP; goto out; } - mutex_lock(&lower_dentry->d_inode->i_mutex); - rc = lower_dentry->d_inode->i_op->getxattr(lower_dentry, name, value, - size); - mutex_unlock(&lower_dentry->d_inode->i_mutex); + mutex_lock(&lower_inode->i_mutex); + rc = lower_inode->i_op->getxattr(lower_dentry, lower_inode, + name, value, size); + mutex_unlock(&lower_inode->i_mutex); out: return rc; } static ssize_t -ecryptfs_getxattr(struct dentry *dentry, const char *name, void *value, - size_t size) +ecryptfs_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *value, size_t size) { - return ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry), name, - value, size); + return ecryptfs_getxattr_lower(ecryptfs_dentry_to_lower(dentry), + ecryptfs_inode_to_lower(inode), + name, value, size); } static ssize_t diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index 564a1fa..4ee2cac 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -437,7 +437,8 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode) goto out; } mutex_lock(&lower_inode->i_mutex); - size = lower_inode->i_op->getxattr(lower_dentry, ECRYPTFS_XATTR_NAME, + size = lower_inode->i_op->getxattr(lower_dentry, lower_inode, + ECRYPTFS_XATTR_NAME, xattr_virt, PAGE_CACHE_SIZE); if (size < 0) size = 8; diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 86ee53f..bef1ee3 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -1887,10 +1887,9 @@ static int fuse_setxattr(struct dentry *entry, const char *name, return err; } -static ssize_t fuse_getxattr(struct dentry *entry, const char *name, - void *value, size_t size) +static ssize_t fuse_getxattr(struct dentry *entry, struct inode *inode, + const char *name, void *value, size_t size) { - struct inode *inode = entry->d_inode; struct fuse_conn *fc = get_fuse_conn(inode); struct fuse_req *req; struct fuse_getxattr_in inarg; diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index c4ed823..ee95780 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1871,22 +1871,21 @@ static int gfs2_setxattr(struct dentry *dentry, const char *name, return ret; } -static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, - void *data, size_t size) +static ssize_t gfs2_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *data, size_t size) { - struct inode *inode = dentry->d_inode; struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder gh; int ret; /* For selinux during lookup */ if (gfs2_glock_is_locked_by_me(ip->i_gl)) - return generic_getxattr(dentry, name, data, size); + return generic_getxattr(dentry, inode, name, data, size); gfs2_holder_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); ret = gfs2_glock_nq(&gh); if (ret == 0) { - ret = generic_getxattr(dentry, name, data, size); + ret = generic_getxattr(dentry, inode, name, data, size); gfs2_glock_dq(&gh); } gfs2_holder_uninit(&gh); diff --git a/fs/hfs/attr.c b/fs/hfs/attr.c index e057ec5..ce9719c 100644 --- a/fs/hfs/attr.c +++ b/fs/hfs/attr.c @@ -56,10 +56,9 @@ out: return res; } -ssize_t hfs_getxattr(struct dentry *dentry, const char *name, - void *value, size_t size) +ssize_t hfs_getxattr(struct dentry *unused, struct inode *inode, + const char *name, void *value, size_t size) { - struct inode *inode = dentry->d_inode; struct hfs_find_data fd; hfs_cat_rec rec; struct hfs_cat_file *file; diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h index 95d2552..f234e2a 100644 --- a/fs/hfs/hfs_fs.h +++ b/fs/hfs/hfs_fs.h @@ -213,8 +213,8 @@ extern void hfs_delete_inode(struct inode *); /* attr.c */ extern int hfs_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); -extern ssize_t hfs_getxattr(struct dentry *dentry, const char *name, - void *value, size_t size); +extern ssize_t hfs_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *value, size_t size); extern ssize_t hfs_listxattr(struct dentry *dentry, char *buffer, size_t size); /* mdb.c */ diff --git a/fs/jfs/jfs_xattr.h b/fs/jfs/jfs_xattr.h index e8d717d..e69e14f 100644 --- a/fs/jfs/jfs_xattr.h +++ b/fs/jfs/jfs_xattr.h @@ -57,7 +57,7 @@ extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *, extern int jfs_setxattr(struct dentry *, const char *, const void *, size_t, int); extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t); -extern ssize_t jfs_getxattr(struct dentry *, const char *, void *, size_t); +extern ssize_t jfs_getxattr(struct dentry *, struct inode *, const char *, void *, size_t); extern ssize_t jfs_listxattr(struct dentry *, char *, size_t); extern int jfs_removexattr(struct dentry *, const char *); diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c index 46325d5..7b9a8f9 100644 --- a/fs/jfs/xattr.c +++ b/fs/jfs/xattr.c @@ -933,8 +933,8 @@ ssize_t __jfs_getxattr(struct inode *inode, const char *name, void *data, return size; } -ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data, - size_t buf_size) +ssize_t jfs_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *data, size_t buf_size) { int err; @@ -944,7 +944,7 @@ ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data, * for it via sb->s_xattr. */ if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_getxattr(dentry, name, data, buf_size); + return generic_getxattr(dentry, inode, name, data, buf_size); if (strncmp(name, XATTR_OS2_PREFIX, XATTR_OS2_PREFIX_LEN) == 0) { /* @@ -959,7 +959,7 @@ ssize_t jfs_getxattr(struct dentry *dentry, const char *name, void *data, return -EOPNOTSUPP; } - err = __jfs_getxattr(dentry->d_inode, name, data, buf_size); + err = __jfs_getxattr(inode, name, data, buf_size); return err; } diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c index 9852176..332ccaf 100644 --- a/fs/kernfs/inode.c +++ b/fs/kernfs/inode.c @@ -220,10 +220,10 @@ int kernfs_iop_removexattr(struct dentry *dentry, const char *name) return simple_xattr_remove(&attrs->xattrs, name); } -ssize_t kernfs_iop_getxattr(struct dentry *dentry, const char *name, void *buf, - size_t size) +ssize_t kernfs_iop_getxattr(struct dentry *unused, struct inode *inode, + const char *name, void *buf, size_t size) { - struct kernfs_node *kn = dentry->d_fsdata; + struct kernfs_node *kn = inode->i_private; struct kernfs_iattrs *attrs; attrs = kernfs_iattrs(kn); diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h index dc84a3e..35b9ee1 100644 --- a/fs/kernfs/kernfs-internal.h +++ b/fs/kernfs/kernfs-internal.h @@ -85,8 +85,8 @@ int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry, int kernfs_iop_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); int kernfs_iop_removexattr(struct dentry *dentry, const char *name); -ssize_t kernfs_iop_getxattr(struct dentry *dentry, const char *name, void *buf, - size_t size); +ssize_t kernfs_iop_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buf, size_t size); ssize_t kernfs_iop_listxattr(struct dentry *dentry, char *buf, size_t size); void kernfs_inode_init(void); diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index df5c285..04b5520 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -246,8 +246,8 @@ static bool ovl_need_xattr_filter(struct dentry *dentry, return type == OVL_PATH_UPPER && S_ISDIR(dentry->d_inode->i_mode); } -ssize_t ovl_getxattr(struct dentry *dentry, const char *name, - void *value, size_t size) +ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *value, size_t size) { struct path realpath; enum ovl_path_type type = ovl_path_real(dentry, &realpath); diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index f13557f..66b56ea 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -161,8 +161,8 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr); int ovl_permission(struct inode *inode, int mask); int ovl_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); -ssize_t ovl_getxattr(struct dentry *dentry, const char *name, - void *value, size_t size); +ssize_t ovl_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *value, size_t size); ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size); int ovl_removexattr(struct dentry *dentry, const char *name); struct inode *ovl_d_select_inode(struct dentry *dentry, unsigned file_flags); diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index b5bddae..7d00d6c 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -249,7 +249,7 @@ static bool ovl_is_opaquedir(struct dentry *dentry) if (!S_ISDIR(inode->i_mode) || !inode->i_op->getxattr) return false; - res = inode->i_op->getxattr(dentry, ovl_opaque_xattr, &val, 1); + res = inode->i_op->getxattr(dentry, inode, ovl_opaque_xattr, &val, 1); if (res == 1 && val == 'y') return true; diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index 9998770..40d4fcc 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -767,8 +767,8 @@ find_xattr_handler_prefix(const struct xattr_handler **handlers, * Inode operation getxattr() */ ssize_t -reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer, - size_t size) +reiserfs_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { const struct xattr_handler *handler; @@ -777,8 +777,8 @@ reiserfs_getxattr(struct dentry * dentry, const char *name, void *buffer, if (!handler || get_inode_sd_version(dentry->d_inode) == STAT_DATA_V1) return -EOPNOTSUPP; - return handler->get(dentry, dentry->d_inode, name, buffer, size, - handler->flags); + return handler->get(dentry, inode, + name, buffer, size, handler->flags); } /* diff --git a/fs/reiserfs/xattr.h b/fs/reiserfs/xattr.h index f620e96..033bac1 100644 --- a/fs/reiserfs/xattr.h +++ b/fs/reiserfs/xattr.h @@ -18,8 +18,8 @@ int reiserfs_permission(struct inode *inode, int mask); #ifdef CONFIG_REISERFS_FS_XATTR #define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir) -ssize_t reiserfs_getxattr(struct dentry *dentry, const char *name, - void *buffer, size_t size); +ssize_t reiserfs_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size); int reiserfs_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); ssize_t reiserfs_listxattr(struct dentry *dentry, char *buffer, size_t size); diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index c4fe900..c35436f 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1750,8 +1750,8 @@ int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry, /* xattr.c */ int ubifs_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); -ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf, - size_t size); +ssize_t ubifs_getxattr(struct dentry *dentry, struct inode *host, + const char *name, void *buf, size_t size); ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size); int ubifs_removexattr(struct dentry *dentry, const char *name); diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c index ce6c0d4..698194f 100644 --- a/fs/ubifs/xattr.c +++ b/fs/ubifs/xattr.c @@ -357,10 +357,10 @@ out_free: return err; } -ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf, - size_t size) +ssize_t ubifs_getxattr(struct dentry *dentry, struct inode *host, + const char *name, void *buf, size_t size) { - struct inode *inode, *host = dentry->d_inode; + struct inode *inode; struct ubifs_info *c = host->i_sb->s_fs_info; struct qstr nm = QSTR_INIT(name, strlen(name)); struct ubifs_inode *ui; diff --git a/fs/xattr.c b/fs/xattr.c index 70a5962..b04fc6b 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -192,7 +192,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value, if (!inode->i_op->getxattr) return -EOPNOTSUPP; - error = inode->i_op->getxattr(dentry, name, NULL, 0); + error = inode->i_op->getxattr(dentry, inode, name, NULL, 0); if (error < 0) return error; @@ -203,7 +203,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value, memset(value, 0, error + 1); } - error = inode->i_op->getxattr(dentry, name, value, error); + error = inode->i_op->getxattr(dentry, inode, name, value, error); *xattr_value = value; return error; } @@ -255,7 +255,7 @@ vfs_getxattr(struct dentry *dentry, const char *name, void *value, size_t size) } nolsm: if (inode->i_op->getxattr) - error = inode->i_op->getxattr(dentry, name, value, size); + error = inode->i_op->getxattr(dentry, inode, name, value, size); else error = -EOPNOTSUPP; @@ -717,15 +717,16 @@ xattr_resolve_name(const struct xattr_handler **handlers, const char **name) * Find the handler for the prefix and dispatch its get() operation. */ ssize_t -generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size) +generic_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { const struct xattr_handler *handler; handler = xattr_resolve_name(dentry->d_sb->s_xattr, &name); if (!handler) return -EOPNOTSUPP; - return handler->get(dentry, dentry->d_inode, name, buffer, size, - handler->flags); + return handler->get(dentry, inode, + name, buffer, size, handler->flags); } /* diff --git a/include/linux/fs.h b/include/linux/fs.h index 2a41353..7586207 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1538,7 +1538,8 @@ struct inode_operations { int (*setattr) (struct dentry *, struct iattr *); int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *); int (*setxattr) (struct dentry *, const char *,const void *,size_t,int); - ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t); + ssize_t (*getxattr) (struct dentry *, struct inode *, + const char *, void *, size_t); ssize_t (*listxattr) (struct dentry *, char *, size_t); int (*removexattr) (struct dentry *, const char *); int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, diff --git a/include/linux/xattr.h b/include/linux/xattr.h index 1088878..ad4c869 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -43,7 +43,7 @@ int __vfs_setxattr_noperm(struct dentry *, const char *, const void *, size_t, i int vfs_setxattr(struct dentry *, const char *, const void *, size_t, int); int vfs_removexattr(struct dentry *, const char *); -ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size); +ssize_t generic_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size); ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size); int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags); int generic_removexattr(struct dentry *dentry, const char *name); diff --git a/mm/shmem.c b/mm/shmem.c index fac22b5..8be47d4 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2576,10 +2576,10 @@ static int shmem_xattr_validate(const char *name) return -EOPNOTSUPP; } -static ssize_t shmem_getxattr(struct dentry *dentry, const char *name, - void *buffer, size_t size) +static ssize_t shmem_getxattr(struct dentry *dentry, struct inode *inode, + const char *name, void *buffer, size_t size) { - struct shmem_inode_info *info = SHMEM_I(dentry->d_inode); + struct shmem_inode_info *info = SHMEM_I(inode); int err; /* @@ -2588,7 +2588,7 @@ static ssize_t shmem_getxattr(struct dentry *dentry, const char *name, * for it via sb->s_xattr. */ if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) - return generic_getxattr(dentry, name, buffer, size); + return generic_getxattr(dentry, inode, name, buffer, size); err = shmem_xattr_validate(name); if (err) diff --git a/net/socket.c b/net/socket.c index e723717..a70e86c 100644 --- a/net/socket.c +++ b/net/socket.c @@ -470,7 +470,7 @@ static struct socket *sockfd_lookup_light(int fd, int *err, int *fput_needed) #define XATTR_SOCKPROTONAME_SUFFIX "sockprotoname" #define XATTR_NAME_SOCKPROTONAME (XATTR_SYSTEM_PREFIX XATTR_SOCKPROTONAME_SUFFIX) #define XATTR_NAME_SOCKPROTONAME_LEN (sizeof(XATTR_NAME_SOCKPROTONAME)-1) -static ssize_t sockfs_getxattr(struct dentry *dentry, +static ssize_t sockfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name, void *value, size_t size) { const char *proto_name; diff --git a/security/commoncap.c b/security/commoncap.c index 6849e6c..bdbe1e1 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -308,7 +308,7 @@ int cap_inode_need_killpriv(struct dentry *dentry) if (!inode->i_op->getxattr) return 0; - error = inode->i_op->getxattr(dentry, XATTR_NAME_CAPS, NULL, 0); + error = inode->i_op->getxattr(dentry, inode, XATTR_NAME_CAPS, NULL, 0); if (error <= 0) return 0; return 1; @@ -391,8 +391,8 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data if (!inode || !inode->i_op->getxattr) return -ENODATA; - size = inode->i_op->getxattr((struct dentry *)dentry, XATTR_NAME_CAPS, &caps, - XATTR_CAPS_SZ); + size = inode->i_op->getxattr((struct dentry *)dentry, inode, + XATTR_NAME_CAPS, &caps, XATTR_CAPS_SZ); if (size == -ENODATA || size == -EOPNOTSUPP) /* no data, that's ok */ return -ENODATA; diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c index e1998df..106d1ac 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -83,7 +83,7 @@ static int evm_find_protected_xattrs(struct dentry *dentry) return -EOPNOTSUPP; for (xattr = evm_config_xattrnames; *xattr != NULL; xattr++) { - error = inode->i_op->getxattr(dentry, *xattr, NULL, 0); + error = inode->i_op->getxattr(dentry, inode, *xattr, NULL, 0); if (error < 0) { if (error == -ENODATA) continue; diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 98370d0..8718f05 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -442,7 +442,8 @@ static int sb_finish_set_opts(struct super_block *sb) rc = -EOPNOTSUPP; goto out; } - rc = root_inode->i_op->getxattr(root, XATTR_NAME_SELINUX, NULL, 0); + rc = root_inode->i_op->getxattr(root, root_inode, + XATTR_NAME_SELINUX, NULL, 0); if (rc < 0 && rc != -ENODATA) { if (rc == -EOPNOTSUPP) printk(KERN_WARNING "SELinux: (dev %s, type " @@ -1344,13 +1345,13 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent goto out_unlock; } context[len] = '\0'; - rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX, + rc = inode->i_op->getxattr(dentry, inode, XATTR_NAME_SELINUX, context, len); if (rc == -ERANGE) { kfree(context); /* Need a larger buffer. Query for the right size. */ - rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX, + rc = inode->i_op->getxattr(dentry, inode, XATTR_NAME_SELINUX, NULL, 0); if (rc < 0) { dput(dentry); @@ -1364,7 +1365,7 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent goto out_unlock; } context[len] = '\0'; - rc = inode->i_op->getxattr(dentry, + rc = inode->i_op->getxattr(dentry, inode, XATTR_NAME_SELINUX, context, len); } diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index a72b516..764e521 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -219,7 +219,7 @@ static struct smack_known *smk_fetch(const char *name, struct inode *ip, if (buffer == NULL) return NULL; - rc = ip->i_op->getxattr(dp, name, buffer, SMK_LONGLABEL); + rc = ip->i_op->getxattr(dp, ip, name, buffer, SMK_LONGLABEL); if (rc > 0) skp = smk_import_entry(buffer, rc); @@ -3144,7 +3144,7 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode) TRANS_TRUE, TRANS_TRUE_SIZE, 0); } else { - rc = inode->i_op->getxattr(dp, + rc = inode->i_op->getxattr(dp, inode, XATTR_NAME_SMACKTRANSMUTE, trattr, TRANS_TRUE_SIZE); if (rc >= 0 && strncmp(trattr, TRANS_TRUE, -- 1.7.4.1

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patch "USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB" added to usb-testing

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From 3ae259faaf19e9b6284fe786e3bd4626df143cd7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maxence=20Dupr=C3=A8s?= <xpros64(a)hotmail.fr> Date: Wed, 8 Aug 2018 23:56:33 +0000 Subject: USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller WORLDE Controller KS49 or Prodipe MIDI 49C USB controller cause a -EPROTO error, a communication restart and loop again. This issue has already been fixed for KS25. https://lore.kernel.org/patchwork/patch/753077/ I just add device 201 for KS49 in quirks.c to get it works. Signed-off-by: Laurent Roux <xpros64(a)hotmail.fr> Cc: stable <stable(a)vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/core/quirks.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 097057d2eacf..689a6c65bc5c 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -178,6 +178,10 @@ static const struct usb_device_id usb_quirk_list[] = { /* CBM - Flash disk */ { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME }, + /* WORLDE Controller KS49 or Prodipe MIDI 49C USB controller */ + { USB_DEVICE(0x0218, 0x0201), .driver_info = + USB_QUIRK_CONFIG_INTF_STRINGS }, + /* WORLDE easy key (easykey.25) MIDI controller */ { USB_DEVICE(0x0218, 0x0401), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, -- 2.18.0

7 years, 1 month

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patch "USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB" added to usb-testing

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-testing branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open. If you have any questions about this process, please let me know. >From 44daed946923907f425f616b3d69b18a4145740c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Maxence=20Dupr=C3=A8s?= <xpros64(a)hotmail.fr> Date: Wed, 8 Aug 2018 23:56:33 +0000 Subject: USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller WORLDE Controller KS49 or Prodipe MIDI 49C USB controller cause a -EPROTO error, a communication restart and loop again. This issue has already been fixed for KS25. https://lore.kernel.org/patchwork/patch/753077/ I just add device 201 for KS49 in quirks.c to get it works. This is the patch I propose. Signed-off-by: Laurent Roux <xpros64(a)hotmail.fr> Cc: stable <stable(a)vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/core/quirks.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 097057d2eacf..689a6c65bc5c 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -178,6 +178,10 @@ static const struct usb_device_id usb_quirk_list[] = { /* CBM - Flash disk */ { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME }, + /* WORLDE Controller KS49 or Prodipe MIDI 49C USB controller */ + { USB_DEVICE(0x0218, 0x0201), .driver_info = + USB_QUIRK_CONFIG_INTF_STRINGS }, + /* WORLDE easy key (easykey.25) MIDI controller */ { USB_DEVICE(0x0218, 0x0401), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, -- 2.18.0

7 years, 1 month

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perf: Support uncore in 4.9.112

by Jin, Yao

Hi, The stable kernel 4.9.112 has supported Intel uncore feature in perf core. While it also needs the perf tool supporting to let perf uncore feature work. Following backport patches enables basic perf uncore feature in 4.9.112. For example, on skylake desktop, root@skl:~# uname -a Linux skl 4.9.112+ #2 SMP Mon Jul 16 17:35:25 CST 2018 x86_64 x86_64 x86_64 GNU/Linux root@skl:~# perf list | grep unc_ unc_arb_coh_trk_requests.all unc_arb_trk_occupancy.all unc_arb_trk_occupancy.cycles_with_any_request unc_arb_trk_requests.all unc_arb_trk_requests.drd_direct unc_arb_trk_requests.writes unc_cbo_cache_lookup.any_es unc_cbo_cache_lookup.any_i unc_cbo_cache_lookup.any_m unc_cbo_cache_lookup.any_mesi unc_cbo_cache_lookup.read_es unc_cbo_cache_lookup.read_i unc_cbo_cache_lookup.read_mesi unc_cbo_cache_lookup.write_es unc_cbo_cache_lookup.write_m unc_cbo_cache_lookup.write_mesi unc_cbo_xsnp_response.hit_xcore unc_cbo_xsnp_response.hitm_xcore unc_cbo_xsnp_response.miss_eviction unc_cbo_xsnp_response.miss_xcore root@skl:~# perf stat -a -e unc_cbo_cache_lookup.any_es sleep 1 Performance counter stats for 'system wide': 147,229 unc_cbo_cache_lookup.any_es 1.001204726 seconds time elapsed These patches are divided into 2 parts, perf core part and perf tool part. (Please apply the patches from top to bottom in following lists, otherwise conflicts will happen) 1. Patches for perf core to fix some uncore issues. perf/x86/intel/uncore: Fix Skylake server CHA LLC_LOOKUP event umask c3f02682a101b83424128915b14e60c156c03f02 perf/x86/intel/uncore: Fix Skylake server PCU PMU event format bab4e569e80c07ba6fe5e4f2d815adeef26cee94 perf/x86/intel/uncore: Fix Skylake UPI PMU event masks b3625980a65db6b6b6bbd5790a77ab95ce6397c5 perf/x86/intel/uncore: Remove invalid Skylake server CHA filter field 9ad0fbd8fcd9e6815908c772f8d792a9d764449e perf/x86/intel/uncore: Fix SKX CHA event extra regs 8aa7b7b4b4a601978672dce6604b9f5630b2eeb8 perf/x86/intel/uncore: Fix missing marker for skx_uncore_cha_extra_regs ba883b4abc9cd837441b01eb9cf8d9196181294d perf/x86/intel/uncore: Add event constraint for BDX PCU bb9fbe1b57503f790dbbf9f06e72cb0fb9e60740 2. Patches for perf tool to enable the uncore feature. Note that since some dependencies in perf vendor events patches, so this patch-set includes both core and uncore event patches. perf vendor events: Add BroadwellDE V5 event file 27b565b1eb04a277027953cab13b5aad5d469390 perf vendor events: Add Broadwell V17 event file b74d1315cab113ce1e0ee5e10eb6638219c1b0d1 perf vendor events: Add BroadwellX V10 event file 19c0389b60d486010d508d5a1551ee9b6a8b2f45 perf vendor events: Add Bonnell V4 event file 052aa3cce3f2b91e339318e5fe9806d0cfd822f0 perf vendor events: Add Goldmont V8 event file 4a00680b059a6c2c378945e2dffa2fa2876a4fc1 perf vendor events: Add Haswell V24 event file dcfbad10c7ba0bd2f4993c8d8a258471eb6083ff perf vendor events: Add HaswellX V17 event file ede007404388cd1ba306760a2881dc9722f5bb47 perf vendor events: Add IvyBridge V18 event file 4b90798ebb0bab8fe1ed9065e80879503f5601d2 perf vendor events: Add IvyTown V19 event file d910f0ba6d72a0917ae30b6aed5131988e3096e4 perf vendor events: Add Jaketown V20 event file 902ea4ee33e6dccece0f78a68e882eee9be9577f perf vendor events: Add KnightsLanding V9 event file 55d42d272ee30cd781e74a9c4ab152664c6417fc perf vendor events: Add NehalemEP V2 event file edaa78b4c050ec0a0fc7f436cdf6a73c91af64e0 perf vendor events: Add NehalemEX V2 event file d8c303858582d4dcd90f13ebbe9db812a70d0948 perf vendor events: Add Skylake V24 event file 47cbd67e243a6bbb4133d719edd24ee6a315462d perf vendor events: Add Silvermont V13 event file 1b0978458300164046d12e1b7930c9de38057e1d perf vendor events: Add SandyBridge V15 event file 6e82bdae472355fe0953e12eb29a36079e155ddb perf vendor events: Add WestmereEP-DP V2 event file 1f888acd92c8f88b0ab9640cef0794bc5424c668 perf vendor events: Add WestmereEP-SP V2 event file 01dd25455b3588431d3f59c70e7b934a91d66121 perf vendor events: Add WestmereEX V2 event file 1fbd54b2e2356659f9f87920dc514792db6ff602 perf vendor events intel: Add uncore events for Haswell Server processor 7003f00fdb7b44662e8b47ebaf8ff6ce554df4bb perf vendor events intel: Add uncore events for Broadwell Server 949c84efcac9662b1df520675cdfce07273f4d59 perf vendor events intel: Add uncore events for IvyBridge Server 6b138c7b14d6134bed2419ccf7573b87e7a064b0 perf vendor events intel: Add uncore events for Sandy Bridge Server dd32cb5d8fd42316bf8c2b9f7e5c51a38625f755 perf vendor events intel: Add uncore events for Xeon Phi (Knights Landing) 22c8e5526b7bf33840c20b4e717e6560e5dfb294 perf vendor events intel: Add uncore events for Broadwell DE 76667024171a2d6811c5ddbe42a8f675987ad8a1 perf vendor events: Add mapping for KnightsMill PMU events 771ceddaadd0a2b31603034b36dca50943ff6836 perf vendor events intel: Update Intel uncore JSON event files b90b3e9c11050e09279d2b9a318189e155910b20 perf vendor events intel: Add missing UNC_M_DCLOCKTICKS for Broadwell DE uncore 9c4e2e2589c99ed01db6245847b4bd44bc053330 perf vendor events intel: Add uncore events for Sandy Bridge client 80432c7311dbcf0c814d4923480b055a725b0be2 perf vendor events intel: Add uncore events for Ivy Bridge client bccdcb2a77ba0bef17baf152179e30ca35459a0c perf vendor events intel: Add uncore events for Haswell client 0585c6265e66f952bcb6280cf078e5e120bd367a perf vendor events intel: Add uncore events for Broadwell client 092a95d41655bdd31d7d28f1788818724505feb2 perf vendor events intel: Add uncore events for Skylake client 92c6de0f10a80e4936fac04148bd3783a7c2b9f8 perf vendor events: Add core event list for Skylake Server 630171d4156a257869b3cca5b2e63aacf7bc7948 perf vendor events: Add Skylake server uncore event list 41d3d6db1767326dd7daf7c6df48e42020647c15 perf vendor events: Add Goldmont Plus V1 event file 65db92e0965ab56e8031d5c804f26d5be0e47047 perf jevents: Parse eventcode as number d581141970ef3965c1624960fa928d765afd8a3e perf jevents: Add support for parsing uncore json files fedb2b518239cbc00abcf0d200e0be8436251c11 perf pmu: Support per pmu json aliases 15b22ed369aa23ef4d083ffb9621650c353d3ddd perf pmu: Support event aliases for non cpu// pmus 231bb2aa32498cbebef1306889a02114e9dfc934 perf pmu: Factor out scale conversion code d02fc6bcd53721cf8588633409157c232f2418e0 perf tools: Move new_term arguments into struct parse_events_term template 67b49b38f7bd6f34319b540ce824d5697241b3a8 perf tools: Fail on using multiple bits long terms without value 99e7138eb7897aa0ccc6661173ae2d7e79721e05 perf list: Add debug support for outputing alias string f23610245c1aa0e912476e642bd5107d04122230 perf tools: Factor out PMU matching in parser 2073ad3326b7e4577af3d6789edd03df79519d21 perf pmu: Expand PMU events by prefix match 8255718f4bedbfb3558fba10ff40a70934f2117d perf pmu: Special case uncore_ prefix a820e33547aee9fd0460106c1fc577a125c23975 perf stat: Factor out callback for collecting event values fbe51fba82901fd15d3e0a068388fcd7d02dc047 perf stat: Collapse identically named events 430daf2dc7aff16096a137347e6fd03d4af609e9 perf stat: Handle partially bad results with merging b4229e9d4cac2295f8f04ec26acd571a391c6c37 perf vendor events intel: Add uncore_arb JSON support af34cb4fad1ba08db199ef1b0a529549e041dd25 perf vendor events intel: Add missing space in json descriptions 3401e8d1e1300742ed41910b9338b9da52689a16 Thanks Jin Yao

7 years, 1 month

3
13
0 0

[PATCH 08/10] bcache: set max writeback rate when I/O request is idle

by Coly Li

Commit b1092c9af9ed ("bcache: allow quick writeback when backing idle") allows the writeback rate to be faster if there is no I/O request on a bcache device. It works well if there is only one bcache device attached to the cache set. If there are many bcache devices attached to a cache set, it may introduce performance regression because multiple faster writeback threads of the idle bcache devices will compete the btree level locks with the bcache device who have I/O requests coming. This patch fixes the above issue by only permitting fast writebac when all bcache devices attached on the cache set are idle. And if one of the bcache devices has new I/O request coming, minimized all writeback throughput immediately and let PI controller __update_writeback_rate() to decide the upcoming writeback rate for each bcache device. Also when all bcache devices are idle, limited wrieback rate to a small number is wast of thoughput, especially when backing devices are slower non-rotation devices (e.g. SATA SSD). This patch sets a max writeback rate for each backing device if the whole cache set is idle. A faster writeback rate in idle time means new I/Os may have more available space for dirty data, and people may observe a better write performance then. Please note bcache may change its cache mode in run time, and this patch still works if the cache mode is switched from writeback mode and there is still dirty data on cache. Fixes: Commit b1092c9af9ed ("bcache: allow quick writeback when backing idle") Cc: stable(a)vger.kernel.org #4.16+ Signed-off-by: Coly Li <colyli(a)suse.de> Tested-by: Kai Krakow <kai(a)kaishome.de> Tested-by: Stefan Priebe <s.priebe(a)profihost.ag> Cc: Michael Lyle <mlyle(a)lyle.org> --- drivers/md/bcache/bcache.h | 10 ++-- drivers/md/bcache/request.c | 59 ++++++++++++++++++++++- drivers/md/bcache/super.c | 4 ++ drivers/md/bcache/sysfs.c | 15 ++++-- drivers/md/bcache/util.c | 2 +- drivers/md/bcache/util.h | 2 +- drivers/md/bcache/writeback.c | 91 +++++++++++++++++++++++------------ 7 files changed, 138 insertions(+), 45 deletions(-) diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index b393b3fd06b6..05f82ff6f016 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -328,13 +328,6 @@ struct cached_dev { */ atomic_t has_dirty; - /* - * Set to zero by things that touch the backing volume-- except - * writeback. Incremented by writeback. Used to determine when to - * accelerate idle writeback. - */ - atomic_t backing_idle; - struct bch_ratelimit writeback_rate; struct delayed_work writeback_rate_update; @@ -515,6 +508,8 @@ struct cache_set { struct cache_accounting accounting; unsigned long flags; + atomic_t idle_counter; + atomic_t at_max_writeback_rate; struct cache_sb sb; @@ -524,6 +519,7 @@ struct cache_set { struct bcache_device **devices; unsigned devices_max_used; + atomic_t attached_dev_nr; struct list_head cached_devs; uint64_t cached_dev_sectors; atomic_long_t flash_dev_dirty_sectors; diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 914d501ad1e0..7dbe8b6316a0 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -1103,6 +1103,44 @@ static void detached_dev_do_request(struct bcache_device *d, struct bio *bio) generic_make_request(bio); } +static void quit_max_writeback_rate(struct cache_set *c, + struct cached_dev *this_dc) +{ + int i; + struct bcache_device *d; + struct cached_dev *dc; + + /* + * mutex bch_register_lock may compete with other parallel requesters, + * or attach/detach operations on other backing device. Waiting to + * the mutex lock may increase I/O request latency for seconds or more. + * To avoid such situation, if mutext_trylock() failed, only writeback + * rate of current cached device is set to 1, and __update_write_back() + * will decide writeback rate of other cached devices (remember now + * c->idle_counter is 0 already). + */ + if (mutex_trylock(&bch_register_lock)) { + for (i = 0; i < c->devices_max_used; i++) { + if (!c->devices[i]) + continue; + + if (UUID_FLASH_ONLY(&c->uuids[i])) + continue; + + d = c->devices[i]; + dc = container_of(d, struct cached_dev, disk); + /* + * set writeback rate to default minimum value, + * then let update_writeback_rate() to decide the + * upcoming rate. + */ + atomic_long_set(&dc->writeback_rate.rate, 1); + } + mutex_unlock(&bch_register_lock); + } else + atomic_long_set(&this_dc->writeback_rate.rate, 1); +} + /* Cached devices - read & write stuff */ static blk_qc_t cached_dev_make_request(struct request_queue *q, @@ -1120,8 +1158,25 @@ static blk_qc_t cached_dev_make_request(struct request_queue *q, return BLK_QC_T_NONE; } - atomic_set(&dc->backing_idle, 0); - generic_start_io_acct(q, bio_op(bio), bio_sectors(bio), &d->disk->part0); + if (likely(d->c)) { + if (atomic_read(&d->c->idle_counter)) + atomic_set(&d->c->idle_counter, 0); + /* + * If at_max_writeback_rate of cache set is true and new I/O + * comes, quit max writeback rate of all cached devices + * attached to this cache set, and set at_max_writeback_rate + * to false. + */ + if (unlikely(atomic_read(&d->c->at_max_writeback_rate) == 1)) { + atomic_set(&d->c->at_max_writeback_rate, 0); + quit_max_writeback_rate(d->c, dc); + } + } + + generic_start_io_acct(q, + bio_op(bio), + bio_sectors(bio), + &d->disk->part0); bio_set_dev(bio, dc->bdev); bio->bi_iter.bi_sector += dc->sb.data_offset; diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index f517d7d1fa10..32b95f3b9461 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -696,6 +696,8 @@ static void bcache_device_detach(struct bcache_device *d) { lockdep_assert_held(&bch_register_lock); + atomic_dec(&d->c->attached_dev_nr); + if (test_bit(BCACHE_DEV_DETACHING, &d->flags)) { struct uuid_entry *u = d->c->uuids + d->id; @@ -1144,6 +1146,7 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c, bch_cached_dev_run(dc); bcache_device_link(&dc->disk, c, "bdev"); + atomic_inc(&c->attached_dev_nr); /* Allow the writeback thread to proceed */ up_write(&dc->writeback_lock); @@ -1696,6 +1699,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb) c->block_bits = ilog2(sb->block_size); c->nr_uuids = bucket_bytes(c) / sizeof(struct uuid_entry); c->devices_max_used = 0; + atomic_set(&c->attached_dev_nr, 0); c->btree_pages = bucket_pages(c); if (c->btree_pages > BTREE_MAX_PAGES) c->btree_pages = max_t(int, c->btree_pages / 4, diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 3e9d3459a224..6e88142514fb 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -171,7 +171,8 @@ SHOW(__bch_cached_dev) var_printf(writeback_running, "%i"); var_print(writeback_delay); var_print(writeback_percent); - sysfs_hprint(writeback_rate, wb ? dc->writeback_rate.rate << 9 : 0); + sysfs_hprint(writeback_rate, + wb ? atomic_long_read(&dc->writeback_rate.rate) << 9 : 0); sysfs_hprint(io_errors, atomic_read(&dc->io_errors)); sysfs_printf(io_error_limit, "%i", dc->error_limit); sysfs_printf(io_disable, "%i", dc->io_disable); @@ -193,7 +194,9 @@ SHOW(__bch_cached_dev) * Except for dirty and target, other values should * be 0 if writeback is not running. */ - bch_hprint(rate, wb ? dc->writeback_rate.rate << 9 : 0); + bch_hprint(rate, + wb ? atomic_long_read(&dc->writeback_rate.rate) << 9 + : 0); bch_hprint(dirty, bcache_dev_sectors_dirty(&dc->disk) << 9); bch_hprint(target, dc->writeback_rate_target << 9); bch_hprint(proportional, @@ -261,8 +264,12 @@ STORE(__cached_dev) sysfs_strtoul_clamp(writeback_percent, dc->writeback_percent, 0, 40); - sysfs_strtoul_clamp(writeback_rate, - dc->writeback_rate.rate, 1, INT_MAX); + if (attr == &sysfs_writeback_rate) { + int v; + + sysfs_strtoul_clamp(writeback_rate, v, 1, INT_MAX); + atomic_long_set(&dc->writeback_rate.rate, v); + } sysfs_strtoul_clamp(writeback_rate_update_seconds, dc->writeback_rate_update_seconds, diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c index fc479b026d6d..b15256bcf0e7 100644 --- a/drivers/md/bcache/util.c +++ b/drivers/md/bcache/util.c @@ -200,7 +200,7 @@ uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done) { uint64_t now = local_clock(); - d->next += div_u64(done * NSEC_PER_SEC, d->rate); + d->next += div_u64(done * NSEC_PER_SEC, atomic_long_read(&d->rate)); /* Bound the time. Don't let us fall further than 2 seconds behind * (this prevents unnecessary backlog that would make it impossible diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h index cced87f8eb27..f7b0133c9d2f 100644 --- a/drivers/md/bcache/util.h +++ b/drivers/md/bcache/util.h @@ -442,7 +442,7 @@ struct bch_ratelimit { * Rate at which we want to do work, in units per second * The units here correspond to the units passed to bch_next_delay() */ - uint32_t rate; + atomic_long_t rate; }; static inline void bch_ratelimit_reset(struct bch_ratelimit *d) diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index 912e969fedba..481d4cf38ac0 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -104,11 +104,56 @@ static void __update_writeback_rate(struct cached_dev *dc) dc->writeback_rate_proportional = proportional_scaled; dc->writeback_rate_integral_scaled = integral_scaled; - dc->writeback_rate_change = new_rate - dc->writeback_rate.rate; - dc->writeback_rate.rate = new_rate; + dc->writeback_rate_change = new_rate - + atomic_long_read(&dc->writeback_rate.rate); + atomic_long_set(&dc->writeback_rate.rate, new_rate); dc->writeback_rate_target = target; } +static bool set_at_max_writeback_rate(struct cache_set *c, + struct cached_dev *dc) +{ + /* + * Idle_counter is increased everytime when update_writeback_rate() is + * called. If all backing devices attached to the same cache set have + * identical dc->writeback_rate_update_seconds values, it is about 6 + * rounds of update_writeback_rate() on each backing device before + * c->at_max_writeback_rate is set to 1, and then max wrteback rate set + * to each dc->writeback_rate.rate. + * In order to avoid extra locking cost for counting exact dirty cached + * devices number, c->attached_dev_nr is used to calculate the idle + * throushold. It might be bigger if not all cached device are in write- + * back mode, but it still works well with limited extra rounds of + * update_writeback_rate(). + */ + if (atomic_inc_return(&c->idle_counter) < + atomic_read(&c->attached_dev_nr) * 6) + return false; + + if (atomic_read(&c->at_max_writeback_rate) != 1) + atomic_set(&c->at_max_writeback_rate, 1); + + atomic_long_set(&dc->writeback_rate.rate, INT_MAX); + + /* keep writeback_rate_target as existing value */ + dc->writeback_rate_proportional = 0; + dc->writeback_rate_integral_scaled = 0; + dc->writeback_rate_change = 0; + + /* + * Check c->idle_counter and c->at_max_writeback_rate agagain in case + * new I/O arrives during before set_at_max_writeback_rate() returns. + * Then the writeback rate is set to 1, and its new value should be + * decided via __update_writeback_rate(). + */ + if ((atomic_read(&c->idle_counter) < + atomic_read(&c->attached_dev_nr) * 6) || + !atomic_read(&c->at_max_writeback_rate)) + return false; + + return true; +} + static void update_writeback_rate(struct work_struct *work) { struct cached_dev *dc = container_of(to_delayed_work(work), @@ -136,13 +181,20 @@ static void update_writeback_rate(struct work_struct *work) return; } - down_read(&dc->writeback_lock); - - if (atomic_read(&dc->has_dirty) && - dc->writeback_percent) - __update_writeback_rate(dc); + if (atomic_read(&dc->has_dirty) && dc->writeback_percent) { + /* + * If the whole cache set is idle, set_at_max_writeback_rate() + * will set writeback rate to a max number. Then it is + * unncessary to update writeback rate for an idle cache set + * in maximum writeback rate number(s). + */ + if (!set_at_max_writeback_rate(c, dc)) { + down_read(&dc->writeback_lock); + __update_writeback_rate(dc); + up_read(&dc->writeback_lock); + } + } - up_read(&dc->writeback_lock); /* * CACHE_SET_IO_DISABLE might be set via sysfs interface, @@ -422,27 +474,6 @@ static void read_dirty(struct cached_dev *dc) delay = writeback_delay(dc, size); - /* If the control system would wait for at least half a - * second, and there's been no reqs hitting the backing disk - * for awhile: use an alternate mode where we have at most - * one contiguous set of writebacks in flight at a time. If - * someone wants to do IO it will be quick, as it will only - * have to contend with one operation in flight, and we'll - * be round-tripping data to the backing disk as quickly as - * it can accept it. - */ - if (delay >= HZ / 2) { - /* 3 means at least 1.5 seconds, up to 7.5 if we - * have slowed way down. - */ - if (atomic_inc_return(&dc->backing_idle) >= 3) { - /* Wait for current I/Os to finish */ - closure_sync(&cl); - /* And immediately launch a new set. */ - delay = 0; - } - } - while (!kthread_should_stop() && !test_bit(CACHE_SET_IO_DISABLE, &dc->disk.c->flags) && delay) { @@ -741,7 +772,7 @@ void bch_cached_dev_writeback_init(struct cached_dev *dc) dc->writeback_running = true; dc->writeback_percent = 10; dc->writeback_delay = 30; - dc->writeback_rate.rate = 1024; + atomic_long_set(&dc->writeback_rate.rate, 1024); dc->writeback_rate_minimum = 8; dc->writeback_rate_update_seconds = WRITEBACK_RATE_UPDATE_SECS_DEFAULT; -- 2.18.0

7 years, 1 month

1
0
0 0

[PATCH 01/10] bcache: do not check return value of debugfs_create_dir()

by Coly Li

Greg KH suggests that normal code should not care about debugfs. Therefore no matter successful or failed of debugfs_create_dir() execution, it is unncessary to check its return value. There are two functions called debugfs_create_dir() and check the return value, which are bch_debug_init() and closure_debug_init(). This patch changes these two functions from int to void type, and ignore return values of debugfs_create_dir(). This patch does not fix exact bug, just makes things work as they should. Signed-off-by: Coly Li <colyli(a)suse.de> Suggested-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: stable(a)vger.kernel.org Cc: Kai Krakow <kai(a)kaishome.de> Cc: Kent Overstreet <kent.overstreet(a)gmail.com> --- drivers/md/bcache/bcache.h | 2 +- drivers/md/bcache/closure.c | 13 +++++++++---- drivers/md/bcache/closure.h | 4 ++-- drivers/md/bcache/debug.c | 11 ++++++----- drivers/md/bcache/super.c | 4 +++- 5 files changed, 21 insertions(+), 13 deletions(-) diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index 872ef4d67711..0a3e82b0876d 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -1001,7 +1001,7 @@ void bch_open_buckets_free(struct cache_set *); int bch_cache_allocator_start(struct cache *ca); void bch_debug_exit(void); -int bch_debug_init(struct kobject *); +void bch_debug_init(struct kobject *kobj); void bch_request_exit(void); int bch_request_init(void); diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c index 0e14969182c6..618253683d40 100644 --- a/drivers/md/bcache/closure.c +++ b/drivers/md/bcache/closure.c @@ -199,11 +199,16 @@ static const struct file_operations debug_ops = { .release = single_release }; -int __init closure_debug_init(void) +void __init closure_debug_init(void) { - closure_debug = debugfs_create_file("closures", - 0400, bcache_debug, NULL, &debug_ops); - return IS_ERR_OR_NULL(closure_debug); + if (!IS_ERR_OR_NULL(bcache_debug)) + /* + * it is unnecessary to check return value of + * debugfs_create_file(), we should not care + * about this. + */ + closure_debug = debugfs_create_file( + "closures", 0400, bcache_debug, NULL, &debug_ops); } #endif diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h index 71427eb5fdae..7c2c5bc7c88b 100644 --- a/drivers/md/bcache/closure.h +++ b/drivers/md/bcache/closure.h @@ -186,13 +186,13 @@ static inline void closure_sync(struct closure *cl) #ifdef CONFIG_BCACHE_CLOSURES_DEBUG -int closure_debug_init(void); +void closure_debug_init(void); void closure_debug_create(struct closure *cl); void closure_debug_destroy(struct closure *cl); #else -static inline int closure_debug_init(void) { return 0; } +static inline void closure_debug_init(void) {} static inline void closure_debug_create(struct closure *cl) {} static inline void closure_debug_destroy(struct closure *cl) {} diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c index 04d146711950..12034c07257b 100644 --- a/drivers/md/bcache/debug.c +++ b/drivers/md/bcache/debug.c @@ -252,11 +252,12 @@ void bch_debug_exit(void) debugfs_remove_recursive(bcache_debug); } -int __init bch_debug_init(struct kobject *kobj) +void __init bch_debug_init(struct kobject *kobj) { - if (!IS_ENABLED(CONFIG_DEBUG_FS)) - return 0; - + /* + * it is unnecessary to check return value of + * debugfs_create_file(), we should not care + * about this. + */ bcache_debug = debugfs_create_dir("bcache", NULL); - return IS_ERR_OR_NULL(bcache_debug); } diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index e0a92104ca23..c7ffa6ef3f82 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -2345,10 +2345,12 @@ static int __init bcache_init(void) goto err; if (bch_request_init() || - bch_debug_init(bcache_kobj) || closure_debug_init() || sysfs_create_files(bcache_kobj, files)) goto err; + bch_debug_init(bcache_kobj); + closure_debug_init(); + return 0; err: bcache_exit(); -- 2.18.0

7 years, 1 month

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[PATCH 4.17 00/18] 4.17.14-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.17.14 release. There are 18 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu Aug 9 17:23:05 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.17.14-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.17.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.17.14-rc1 Shankara Pailoor <shankarapailoor(a)gmail.com> jfs: Fix inconsistency between memory allocation and ea_buf->max_size Dave Chinner <dchinner(a)redhat.com> xfs: validate cached inodes are free when allocated Eric Sandeen <sandeen(a)sandeen.net> xfs: don't call xfs_da_shrink_inode with NULL bp Linus Torvalds <torvalds(a)linux-foundation.org> Partially revert "block: fail op_is_write() requests to read-only partitions" Filipe Manana <fdmanana(a)suse.com> Btrfs: fix file data corruption after cloning a range and fsync Esben Haabendal <eha(a)deif.com> i2c: imx: Fix reinit_completion() use Masami Hiramatsu <mhiramat(a)kernel.org> ring_buffer: tracing: Inherit the tracing setting to next ring buffer Dmitry Safonov <dima(a)arista.com> netlink: Don't shift on 64 for ngroups Frederic Weisbecker <frederic(a)kernel.org> nohz: Fix missing tick reprogram when interrupting an inline softirq Anna-Maria Gleixner <anna-maria(a)linutronix.de> nohz: Fix local_timer_softirq_pending() Kan Liang <kan.liang(a)linux.intel.com> perf/x86/intel/uncore: Fix hardcoded index of Broadwell extra PCI devices Thomas Gleixner <tglx(a)linutronix.de> genirq: Make force irq threading setup more robust Kees Cook <keescook(a)chromium.org> jfs: Fix usercopy whitelist for inline inode data Anil Gurumurthy <anil.gurumurthy(a)cavium.com> scsi: qla2xxx: Return error when TMF returns Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix ISP recovery on unload Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix driver unload by shutting down chip Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix NPIV deletion by calling wait_for_sess_deletion Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix unintialized List head crash ------------- Diffstat: Makefile | 4 +- arch/x86/events/intel/uncore.h | 2 +- arch/x86/events/intel/uncore_snbep.c | 10 +++-- block/blk-core.c | 5 ++- drivers/i2c/busses/i2c-imx.c | 3 +- drivers/scsi/qla2xxx/qla_attr.c | 1 + drivers/scsi/qla2xxx/qla_gbl.h | 1 + drivers/scsi/qla2xxx/qla_gs.c | 4 ++ drivers/scsi/qla2xxx/qla_init.c | 7 ++-- drivers/scsi/qla2xxx/qla_inline.h | 2 + drivers/scsi/qla2xxx/qla_isr.c | 3 ++ drivers/scsi/qla2xxx/qla_mbx.c | 6 +++ drivers/scsi/qla2xxx/qla_mid.c | 11 +++++- drivers/scsi/qla2xxx/qla_os.c | 51 +++++++++++-------------- drivers/scsi/qla2xxx/qla_sup.c | 3 ++ fs/btrfs/extent_io.c | 3 ++ fs/jfs/jfs_dinode.h | 7 ++++ fs/jfs/jfs_incore.h | 1 + fs/jfs/super.c | 3 +- fs/jfs/xattr.c | 10 +++-- fs/xfs/libxfs/xfs_attr_leaf.c | 5 +-- fs/xfs/xfs_icache.c | 73 ++++++++++++++++++++++++------------ include/linux/ring_buffer.h | 1 + kernel/irq/manage.c | 9 ++++- kernel/softirq.c | 2 +- kernel/time/tick-sched.c | 2 +- kernel/trace/ring_buffer.c | 16 ++++++++ kernel/trace/trace.c | 6 +++ net/netlink/af_netlink.c | 4 +- 29 files changed, 171 insertions(+), 84 deletions(-)

7 years, 1 month

4
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[PATCH] ARC: [plat-axs10x] Enable SWAP

by Alexey Brodkin

SWAP support on ARC was fixed earlier by commit 6e3761145a9b ("ARC: Fix CONFIG_SWAP") so now we may safely enable it on platforms that have external media like USB and SD-card. Signed-off-by: Alexey Brodkin <abrodkin(a)synopsys.com> Cc: stable(a)vger.kernel.org # 6e3761145a9b: ARC: Fix CONFIG_SWAP --- arch/arc/configs/axs101_defconfig | 1 - arch/arc/configs/axs103_defconfig | 1 - arch/arc/configs/axs103_smp_defconfig | 1 - 3 files changed, 3 deletions(-) diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig index 3dbb2b3f60af..96b7258a76be 100644 --- a/arch/arc/configs/axs101_defconfig +++ b/arch/arc/configs/axs101_defconfig @@ -1,4 +1,3 @@ -# CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig index 4d7b85d4b2dc..72fc21ef1334 100644 --- a/arch/arc/configs/axs103_defconfig +++ b/arch/arc/configs/axs103_defconfig @@ -1,4 +1,3 @@ -# CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_CROSS_MEMORY_ATTACH is not set diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig index 92417e2e39f3..2ac89bd00e28 100644 --- a/arch/arc/configs/axs103_smp_defconfig +++ b/arch/arc/configs/axs103_smp_defconfig @@ -1,4 +1,3 @@ -# CONFIG_SWAP is not set CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y # CONFIG_CROSS_MEMORY_ATTACH is not set -- 2.17.1

7 years, 1 month

2
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[PATCH 3.18 00/85] 3.18.118-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 3.18.118 release. There are 85 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu Aug 9 17:23:43 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v3.x/stable-review/patch-3.18.118-r… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.18.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 3.18.118-rc1 Shankara Pailoor <shankarapailoor(a)gmail.com> jfs: Fix inconsistency between memory allocation and ea_buf->max_size Masami Hiramatsu <mhiramat(a)kernel.org> ring_buffer: tracing: Inherit the tracing setting to next ring buffer Anil Gurumurthy <anil.gurumurthy(a)cavium.com> scsi: qla2xxx: Return error when TMF returns Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix ISP recovery on unload Tony Battersby <tonyb(a)cybernetics.com> scsi: sg: fix minor memory leak in error path Herbert Xu <herbert(a)gondor.apana.org.au> crypto: padlock-aes - Fix Nano workaround data corruption Jiang Biao <jiang.biao2(a)zte.com.cn> virtio_balloon: fix another race between migration and ballooning Anton Vasilyev <vasilyev(a)ispras.ru> can: ems_usb: Fix memory leak on ems_usb_disconnect() Linus Torvalds <torvalds(a)linux-foundation.org> squashfs: more metadata hardenings Linus Torvalds <torvalds(a)linux-foundation.org> squashfs: more metadata hardening Florian Fainelli <f.fainelli(a)gmail.com> net: dsa: Do not suspend/resume closed slave_dev Eric Dumazet <edumazet(a)google.com> inet: frag: enforce memory limits earlier Lorenzo Bianconi <lorenzo.bianconi(a)redhat.com> ipv4: remove BUG_ON() from fib_compute_spec_dst Eric Dumazet <edumazet(a)google.com> tcp: add one more quick ack after after ECN events Yousuk Seung <ysseung(a)google.com> tcp: refactor tcp_ecn_check_ce to remove sk type cast Eric Dumazet <edumazet(a)google.com> tcp: do not aggressively quick ack after ECN events Eric Dumazet <edumazet(a)google.com> tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode Eric Dumazet <edumazet(a)google.com> tcp: do not force quickack when receiving out-of-order packets Xiao Liang <xiliang(a)redhat.com> xen-netfront: wait xenbus state change when load module manually Eugeniy Paltsev <Eugeniy.Paltsev(a)synopsys.com> NET: stmmac: align DMA stuff to largest cache line length Linus Torvalds <torvalds(a)linux-foundation.org> squashfs: be more careful about metadata corruption Theodore Ts'o <tytso(a)mit.edu> random: mix rdrand with entropy sent in from userspace Mauro Carvalho Chehab <mchehab(a)s-opensource.com> media: si470x: fix __be16 annotations Suman Anna <s-anna(a)ti.com> media: omap3isp: fix unbalanced dma_iommu_mapping Tudor-Dan Ambarus <tudor.ambarus(a)microchip.com> crypto: authenc - don't leak pointers to authenc keys Tudor-Dan Ambarus <tudor.ambarus(a)microchip.com> crypto: authencesn - don't leak pointers to authenc keys Dominik Bozek <dominikx.bozek(a)intel.com> usb: hub: Don't wait for connect state at resume for powered-off ports Michal Simek <michal.simek(a)xilinx.com> microblaze: Fix simpleImage format generation Siva Rebbagondla <siva.rebbagondla(a)redpinesignals.com> rsi: Fix 'invalid vdd' warning in mmc Chris Novakovic <chris(a)chrisn.me.uk> ipconfig: Correctly initialise ic_nameservers Luc Van Oostenryck <luc.vanoostenryck(a)gmail.com> drm/gma500: fix psb_intel_lvds_mode_valid()'s return type Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: hda/ca0132: fix build failure when a local macro is defined Mauro Carvalho Chehab <mchehab(a)s-opensource.com> media: siano: get rid of __le32/__le16 cast warnings Jakub Kicinski <jakub.kicinski(a)netronome.com> bpf: fix references to free_bpf_prog_info() in comments Dan Carpenter <dan.carpenter(a)oracle.com> scsi: megaraid: silence a static checker bug Wenwen Wang <wang6495(a)umn.edu> scsi: 3w-xxxx: fix a missing-check bug Wenwen Wang <wang6495(a)umn.edu> scsi: 3w-9xxx: fix a missing-check bug Thomas Richter <tmricht(a)linux.ibm.com> perf: fix invalid bit in diagnostic entry Thomas Richter <tmricht(a)linux.ibm.com> s390/cpum_sf: Add data entry sizes to sampling trailer entry Brad Love <brad(a)nextdimension.cc> media: saa7164: Fix driver name in debug output Damien Le Moal <damien.lemoal(a)wdc.com> libata: Fix command retry decision DaeRyong Jeong <threeearcat(a)gmail.com> tty: Fix data race in tty_insert_flip_string_fixed_flag Dmitry Torokhov <dtor(a)chromium.org> HID: i2c-hid: check if device is there before really probing Jonathan Neuschäfer <j.neuschaefer(a)gmx.net> powerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet Luc Van Oostenryck <luc.vanoostenryck(a)gmail.com> drm/radeon: fix mode_valid's return type Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Apply rate limit to warning messages in URB complete callback Colin Ian King <colin.king(a)canonical.com> media: smiapp: fix timeout checking in smiapp_read_nvm Yufen Yu <yuyufen(a)huawei.com> md: fix NULL dereference of mddev->pers in remove_and_add_spares() Anson Huang <Anson.Huang(a)nxp.com> regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops Takashi Iwai <tiwai(a)suse.de> ALSA: emu10k1: Rate-limit error messages about page errors Maya Erez <merez(a)codeaurora.org> scsi: ufs: fix exception event handling Mika Westerberg <mika.westerberg(a)linux.intel.com> PCI: pciehp: Request control of native hotplug only if supported Christophe Leroy <christophe.leroy(a)c-s.fr> powerpc/8xx: fix invalid register expression in head_8xx.S Mathieu Malaterre <malat(a)debian.org> powerpc/powermac: Mark variable x as unused Mathieu Malaterre <malat(a)debian.org> powerpc/powermac: Add missing prototype for note_bootable_part() Mathieu Malaterre <malat(a)debian.org> powerpc/chrp/time: Make some functions static, add missing header include Mathieu Malaterre <malat(a)debian.org> powerpc/32: Add a missing include header Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Bahamas Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Bermuda Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Serbia Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Tanzania Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Uganda Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for APL2_FCCA Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for APL13_WORLD Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for ETSI8_WORLD Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for FCC3_ETSIC Christoph Hellwig <hch(a)lst.de> PCI: Prevent sysfs disable of device while driver is attached Eyal Reizer <eyalreizer(a)gmail.com> wlcore: sdio: check for valid platform device data before suspend Ganapathi Bhat <gbhat(a)marvell.com> mwifiex: handle race during mwifiex_usb_disconnect Kai Chieh Chuang <kaichieh.chuang(a)mediatek.com> ASoC: dpcm: fix BE dai not hw_free and shutdown Kan Liang <kan.liang(a)intel.com> perf/x86/intel/uncore: Correct fixed counter index check for NHM Kan Liang <kan.liang(a)intel.com> perf/x86/intel/uncore: Correct fixed counter index check in generic code Shuah Khan (Samsung OSG) <shuah(a)kernel.org> usbip: usbip_detach: Fix memory, udev context and udev leak Leon Romanovsky <leonro(a)mellanox.com> RDMA/mad: Convert BUG_ONs to error flows Stewart Smith <stewart(a)linux.ibm.com> hvc_opal: don't set tb_ticks_per_usec in udbg_init_opal_common() Cong Wang <xiyou.wangcong(a)gmail.com> infiniband: fix a possible use-after-free bug Alexandre Belloni <alexandre.belloni(a)bootlin.com> rtc: ensure rtc_set_alarm fails when alarms are not supported Mathieu Malaterre <malat(a)debian.org> mm/slub.c: add __printf verification to slab_err() Chintan Pandya <cpandya(a)codeaurora.org> mm: vmalloc: avoid racy handling of debugobjects in vunmap Zhouyang Jia <jiazhouyang09(a)gmail.com> ALSA: fm801: add error handling for snd_ctl_add Zhouyang Jia <jiazhouyang09(a)gmail.com> ALSA: emu10k1: add error handling for snd_ctl_add Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Quiet gcc warning about maybe unused link variable Artem Savkov <asavkov(a)redhat.com> tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Fix possible double free in event_enable_trigger_func() Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Fix double free of event_trigger_data ------------- Diffstat: Makefile | 4 +- arch/microblaze/boot/Makefile | 10 +++-- arch/powerpc/kernel/head_8xx.S | 2 +- arch/powerpc/kernel/pci_32.c | 1 + arch/powerpc/platforms/chrp/time.c | 6 ++- arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 5 +++ arch/powerpc/platforms/powermac/bootx_init.c | 4 +- arch/powerpc/platforms/powermac/setup.c | 1 + arch/s390/include/asm/cpu_mf.h | 6 ++- arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 +- .../x86/kernel/cpu/perf_event_intel_uncore_nhmex.c | 2 +- crypto/authenc.c | 1 + crypto/authencesn.c | 1 + drivers/acpi/pci_root.c | 4 +- drivers/ata/libata-eh.c | 12 ++++-- drivers/char/random.c | 10 ++++- drivers/crypto/padlock-aes.c | 8 +++- drivers/gpu/drm/gma500/psb_intel_drv.h | 2 +- drivers/gpu/drm/gma500/psb_intel_lvds.c | 2 +- drivers/gpu/drm/radeon/radeon_connectors.c | 10 ++--- drivers/hid/i2c-hid/i2c-hid.c | 8 ++++ drivers/infiniband/core/mad.c | 11 +++-- drivers/infiniband/core/ucma.c | 6 ++- drivers/md/md.c | 3 ++ drivers/media/common/siano/smsendian.c | 14 +++---- drivers/media/i2c/smiapp/smiapp-core.c | 11 +++-- drivers/media/pci/saa7164/saa7164-fw.c | 3 +- drivers/media/platform/omap3isp/isp.c | 7 ++-- drivers/media/radio/si470x/radio-si470x-i2c.c | 6 +-- drivers/net/can/usb/ems_usb.c | 1 + drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/wireless/ath/regd.h | 5 +++ drivers/net/wireless/ath/regd_common.h | 13 ++++++ drivers/net/wireless/mwifiex/usb.c | 3 ++ drivers/net/wireless/rsi/rsi_91x_sdio.c | 2 - drivers/net/wireless/ti/wlcore/sdio.c | 5 +++ drivers/net/xen-netfront.c | 6 +++ drivers/pci/pci-sysfs.c | 15 ++++--- drivers/regulator/pfuze100-regulator.c | 1 + drivers/rtc/interface.c | 5 +++ drivers/scsi/3w-9xxx.c | 5 +++ drivers/scsi/3w-xxxx.c | 3 ++ drivers/scsi/megaraid.c | 3 ++ drivers/scsi/qla2xxx/qla_init.c | 7 ++-- drivers/scsi/qla2xxx/qla_os.c | 5 ++- drivers/scsi/sg.c | 1 + drivers/scsi/ufs/ufshcd.c | 2 + drivers/tty/hvc/hvc_opal.c | 1 - drivers/tty/pty.c | 3 ++ drivers/usb/core/hub.c | 4 ++ drivers/virtio/virtio_balloon.c | 2 + fs/jfs/xattr.c | 10 +++-- fs/squashfs/block.c | 2 + fs/squashfs/cache.c | 3 ++ fs/squashfs/file.c | 8 +++- fs/squashfs/fragment.c | 17 ++++---- fs/squashfs/squashfs_fs.h | 6 +++ fs/squashfs/squashfs_fs_sb.h | 1 + fs/squashfs/super.c | 5 ++- include/linux/ring_buffer.h | 1 + include/net/tcp.h | 2 +- kernel/bpf/verifier.c | 4 +- kernel/trace/ring_buffer.c | 16 ++++++++ kernel/trace/trace.c | 6 +++ kernel/trace/trace_events_trigger.c | 18 +++++--- kernel/trace/trace_kprobe.c | 15 ++++++- mm/slub.c | 2 +- mm/vmalloc.c | 3 +- net/dsa/slave.c | 6 +++ net/ipv4/fib_frontend.c | 4 +- net/ipv4/inet_fragment.c | 10 ++--- net/ipv4/ipconfig.c | 13 ++++++ net/ipv4/tcp_dctcp.c | 4 +- net/ipv4/tcp_input.c | 48 +++++++++++----------- sound/pci/emu10k1/emupcm.c | 4 +- sound/pci/emu10k1/memory.c | 6 +-- sound/pci/fm801.c | 16 ++++++-- sound/pci/hda/patch_ca0132.c | 8 +++- sound/soc/soc-pcm.c | 6 ++- sound/usb/pcm.c | 2 +- tools/usb/usbip/src/usbip_detach.c | 9 ++-- 81 files changed, 366 insertions(+), 145 deletions(-)

7 years, 1 month

4
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[PATCH v2] RDMA/rxe: Set wqe->status correctly if an unexpected response is received

by Bart Van Assche

Every function that returns COMPST_ERROR must set wqe->status to another value than IB_WC_SUCCESS before returning COMPST_ERROR. Fix the only code path for which this is not yet the case. Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Cc: Zhu Yanjun <yanjun.zhu(a)oracle.com> Cc: Jianchao Wang <jianchao.w.wang(a)oracle.com> Cc: Yuval Shaia <yuval.shaia(a)oracle.com> Cc: <stable(a)vger.kernel.org> --- Changes compared to v1: left out a pr_err() statement as requested by Jason. drivers/infiniband/sw/rxe/rxe_comp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/sw/rxe/rxe_comp.c b/drivers/infiniband/sw/rxe/rxe_comp.c index 98d470d1f3fc..83311dd07019 100644 --- a/drivers/infiniband/sw/rxe/rxe_comp.c +++ b/drivers/infiniband/sw/rxe/rxe_comp.c @@ -276,6 +276,7 @@ static inline enum comp_state check_ack(struct rxe_qp *qp, case IB_OPCODE_RC_RDMA_READ_RESPONSE_MIDDLE: if (wqe->wr.opcode != IB_WR_RDMA_READ && wqe->wr.opcode != IB_WR_RDMA_READ_WITH_INV) { + wqe->status = IB_WC_FATAL_ERR; return COMPST_ERROR; } reset_retry_counters(qp); -- 2.17.1

7 years, 1 month

4
5
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[PATCH 4.14 00/21] 4.14.62-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.62 release. There are 21 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu Aug 9 17:23:22 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.62-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.14.62-rc1 Shankara Pailoor <shankarapailoor(a)gmail.com> jfs: Fix inconsistency between memory allocation and ea_buf->max_size Eric Sandeen <sandeen(a)sandeen.net> xfs: don't call xfs_da_shrink_inode with NULL bp Dave Chinner <dchinner(a)redhat.com> xfs: validate cached inodes are free when allocated Dave Chinner <dchinner(a)redhat.com> xfs: catch inode allocation state mismatch corruption Len Brown <len.brown(a)intel.com> intel_idle: Graceful probe failure when MWAIT is disabled James Smart <jsmart2021(a)gmail.com> nvmet-fc: fix target sgl list on large transfers Keith Busch <keith.busch(a)intel.com> nvme-pci: Fix queue double allocations Sagi Grimberg <sagi(a)grimberg.me> nvme-pci: allocate device queues storage space at probe Filipe Manana <fdmanana(a)suse.com> Btrfs: fix file data corruption after cloning a range and fsync Esben Haabendal <eha(a)deif.com> i2c: imx: Fix reinit_completion() use Masami Hiramatsu <mhiramat(a)kernel.org> ring_buffer: tracing: Inherit the tracing setting to next ring buffer Vitaly Kuznetsov <vkuznets(a)redhat.com> ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle Theodore Ts'o <tytso(a)mit.edu> ext4: fix false negatives *and* false positives in ext4_check_descriptors() Dmitry Safonov <dima(a)arista.com> netlink: Don't shift on 64 for ngroups Frederic Weisbecker <frederic(a)kernel.org> nohz: Fix missing tick reprogram when interrupting an inline softirq Anna-Maria Gleixner <anna-maria(a)linutronix.de> nohz: Fix local_timer_softirq_pending() Thomas Gleixner <tglx(a)linutronix.de> genirq: Make force irq threading setup more robust Anil Gurumurthy <anil.gurumurthy(a)cavium.com> scsi: qla2xxx: Return error when TMF returns Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix ISP recovery on unload Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix NPIV deletion by calling wait_for_sess_deletion Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix unintialized List head crash ------------- Diffstat: Makefile | 4 +-- drivers/i2c/busses/i2c-imx.c | 3 +- drivers/idle/intel_idle.c | 7 ++++- drivers/nvme/host/pci.c | 64 +++++++++++++++++---------------------- drivers/nvme/target/fc.c | 44 +++++++++++++++++++++------ drivers/pci/pci-acpi.c | 2 +- drivers/scsi/qla2xxx/qla_attr.c | 1 + drivers/scsi/qla2xxx/qla_gbl.h | 1 + drivers/scsi/qla2xxx/qla_gs.c | 4 +++ drivers/scsi/qla2xxx/qla_init.c | 7 ++--- drivers/scsi/qla2xxx/qla_inline.h | 2 ++ drivers/scsi/qla2xxx/qla_mid.c | 5 +++ drivers/scsi/qla2xxx/qla_os.c | 7 +++-- fs/btrfs/extent_io.c | 3 ++ fs/ext4/super.c | 4 +-- fs/jfs/xattr.c | 10 +++--- fs/xfs/libxfs/xfs_attr_leaf.c | 5 ++- fs/xfs/xfs_icache.c | 58 ++++++++++++++++++++++++++++++----- include/linux/ring_buffer.h | 1 + kernel/irq/manage.c | 9 +++++- kernel/softirq.c | 2 +- kernel/time/tick-sched.c | 2 +- kernel/trace/ring_buffer.c | 16 ++++++++++ kernel/trace/trace.c | 6 ++++ net/netlink/af_netlink.c | 4 +-- 25 files changed, 192 insertions(+), 79 deletions(-)

7 years, 1 month

4
23
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[PATCH 4.9 00/17] 4.9.119-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.119 release. There are 17 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu Aug 9 17:23:30 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.119-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.9.119-rc1 Shankara Pailoor <shankarapailoor(a)gmail.com> jfs: Fix inconsistency between memory allocation and ea_buf->max_size Michael J. Ruhl <michael.j.ruhl(a)intel.com> IB/hfi1: Fix incorrect mixing of ERR_PTR and NULL return values Kees Cook <keescook(a)chromium.org> fork: unconditionally clear stack on fork Konstantin Khlebnikov <khlebnikov(a)yandex-team.ru> kmemleak: clear stale pointers from task stacks Eric Dumazet <edumazet(a)google.com> tcp: add tcp_ooo_try_coalesce() helper Filipe Manana <fdmanana(a)suse.com> Btrfs: fix file data corruption after cloning a range and fsync Esben Haabendal <eha(a)deif.com> i2c: imx: Fix reinit_completion() use Masami Hiramatsu <mhiramat(a)kernel.org> ring_buffer: tracing: Inherit the tracing setting to next ring buffer Vitaly Kuznetsov <vkuznets(a)redhat.com> ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle Theodore Ts'o <tytso(a)mit.edu> ext4: fix false negatives *and* false positives in ext4_check_descriptors() Dmitry Safonov <dima(a)arista.com> netlink: Don't shift on 64 for ngroups Dmitry Safonov <dima(a)arista.com> netlink: Don't shift with UB on nlk->ngroups Dmitry Safonov <dima(a)arista.com> netlink: Do not subscribe to non-existent groups Anna-Maria Gleixner <anna-maria(a)linutronix.de> nohz: Fix local_timer_softirq_pending() Thomas Gleixner <tglx(a)linutronix.de> genirq: Make force irq threading setup more robust Anil Gurumurthy <anil.gurumurthy(a)cavium.com> scsi: qla2xxx: Return error when TMF returns Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix ISP recovery on unload ------------- Diffstat: Makefile | 4 ++-- drivers/i2c/busses/i2c-imx.c | 3 +-- drivers/infiniband/hw/hfi1/rc.c | 2 +- drivers/infiniband/hw/hfi1/uc.c | 4 ++-- drivers/infiniband/hw/hfi1/ud.c | 4 ++-- drivers/infiniband/hw/hfi1/verbs_txreq.c | 4 ++-- drivers/infiniband/hw/hfi1/verbs_txreq.h | 4 ++-- drivers/pci/pci-acpi.c | 2 +- drivers/scsi/qla2xxx/qla_init.c | 7 +++---- drivers/scsi/qla2xxx/qla_os.c | 5 +++-- fs/btrfs/extent_io.c | 3 +++ fs/ext4/super.c | 4 ++-- fs/jfs/xattr.c | 10 ++++++---- include/linux/ring_buffer.h | 1 + include/linux/thread_info.h | 7 +------ kernel/fork.c | 3 +++ kernel/irq/manage.c | 9 ++++++++- kernel/time/tick-sched.c | 2 +- kernel/trace/ring_buffer.c | 16 ++++++++++++++++ kernel/trace/trace.c | 6 ++++++ net/ipv4/tcp_input.c | 23 +++++++++++++++++++++-- net/netlink/af_netlink.c | 5 +++++ 22 files changed, 92 insertions(+), 36 deletions(-)

7 years, 1 month

5
20
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[PATCH 4.4 00/12] 4.4.147-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.147 release. There are 12 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu Aug 9 17:23:34 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.4.147-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.4.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.4.147-rc1 Shankara Pailoor <shankarapailoor(a)gmail.com> jfs: Fix inconsistency between memory allocation and ea_buf->max_size Esben Haabendal <eha(a)deif.com> i2c: imx: Fix reinit_completion() use Masami Hiramatsu <mhiramat(a)kernel.org> ring_buffer: tracing: Inherit the tracing setting to next ring buffer Vitaly Kuznetsov <vkuznets(a)redhat.com> ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle Theodore Ts'o <tytso(a)mit.edu> ext4: fix false negatives *and* false positives in ext4_check_descriptors() Dmitry Safonov <dima(a)arista.com> netlink: Don't shift on 64 for ngroups Dmitry Safonov <dima(a)arista.com> netlink: Don't shift with UB on nlk->ngroups Dmitry Safonov <dima(a)arista.com> netlink: Do not subscribe to non-existent groups Anna-Maria Gleixner <anna-maria(a)linutronix.de> nohz: Fix local_timer_softirq_pending() Thomas Gleixner <tglx(a)linutronix.de> genirq: Make force irq threading setup more robust Anil Gurumurthy <anil.gurumurthy(a)cavium.com> scsi: qla2xxx: Return error when TMF returns Quinn Tran <quinn.tran(a)cavium.com> scsi: qla2xxx: Fix ISP recovery on unload ------------- Diffstat: Makefile | 4 ++-- drivers/i2c/busses/i2c-imx.c | 3 +-- drivers/pci/pci-acpi.c | 2 +- drivers/scsi/qla2xxx/qla_init.c | 7 +++---- drivers/scsi/qla2xxx/qla_os.c | 5 +++-- fs/ext4/super.c | 4 ++-- fs/jfs/xattr.c | 10 ++++++---- include/linux/ring_buffer.h | 1 + kernel/irq/manage.c | 9 ++++++++- kernel/time/tick-sched.c | 2 +- kernel/trace/ring_buffer.c | 16 ++++++++++++++++ kernel/trace/trace.c | 6 ++++++ net/netlink/af_netlink.c | 5 +++++ 13 files changed, 55 insertions(+), 19 deletions(-)

7 years, 1 month

5
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[PATCH v4 2/2] block: Ensure that a request queue is dissociated from the cgroup controller

by Bart Van Assche

Several block drivers call alloc_disk() followed by put_disk() if something fails before device_add_disk() is called without calling blk_cleanup_queue(). Make sure that also for this scenario a request queue is dissociated from the cgroup controller. This patch avoids that loading the parport_pc, paride and pf drivers triggers the following kernel crash: BUG: KASAN: null-ptr-deref in pi_init+0x42e/0x580 [paride] Read of size 4 at addr 0000000000000008 by task modprobe/744 Call Trace: dump_stack+0x9a/0xeb kasan_report+0x139/0x350 pi_init+0x42e/0x580 [paride] pf_init+0x2bb/0x1000 [pf] do_one_initcall+0x8e/0x405 do_init_module+0xd9/0x2f2 load_module+0x3ab4/0x4700 SYSC_finit_module+0x176/0x1a0 do_syscall_64+0xee/0x2b0 entry_SYSCALL_64_after_hwframe+0x42/0xb7 Reported-by: Alexandru Moise <00moses.alexander00(a)gmail.com> Fixes: a063057d7c73 ("block: Fix a race between request queue removal and the block cgroup controller") # v4.17 Signed-off-by: Bart Van Assche <bart.vanassche(a)wdc.com> Tested-by: Alexandru Moise <00moses.alexander00(a)gmail.com> Cc: Tejun Heo <tj(a)kernel.org> Cc: Christoph Hellwig <hch(a)lst.de> Cc: Ming Lei <ming.lei(a)redhat.com> Cc: Johannes Thumshirn <jthumshirn(a)suse.de> Cc: Alexandru Moise <00moses.alexander00(a)gmail.com> Cc: Joseph Qi <joseph.qi(a)linux.alibaba.com> Cc: <stable(a)vger.kernel.org> --- block/blk-sysfs.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index ca1984ecbdeb..26275d9babcb 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -802,6 +802,31 @@ static void __blk_release_queue(struct work_struct *work) blk_stat_remove_callback(q, q->poll_cb); blk_stat_free_callback(q->poll_cb); + if (!blk_queue_dead(q)) { + /* + * Last reference was dropped without having called + * blk_cleanup_queue(). + */ + WARN_ONCE(blk_queue_init_done(q), + "request queue %p has been registered but blk_cleanup_queue() has not been called for that queue\n", + q); + blk_exit_queue(q); + } + +#ifdef CONFIG_BLK_CGROUP + { + struct blkcg_gq *blkg; + + rcu_read_lock(); + blkg = blkg_lookup(&blkcg_root, q); + rcu_read_unlock(); + + WARN(blkg, + "request queue %p is being released but it has not yet been removed from the blkcg controller\n", + q); + } +#endif + blk_free_queue_stats(q->stats); blk_exit_rl(q, &q->root_rl); -- 2.18.0

7 years, 1 month

4
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[PATCH v6 0/8] powerpc/pseries: Machine check handler improvements.

by Mahesh J Salgaonkar

This patch series includes some improvement to Machine check handler for pSeries. Patch 1 fixes a buffer overrun issue if rtas extended error log size is greater than RTAS_ERROR_LOG_MAX. Patch 2 fixes an issue where machine check handler crashes kernel while accessing vmalloc-ed buffer while in nmi context. Patch 3 fixes endain bug while restoring of r3 in MCE handler. Patch 5 implements a real mode mce handler and flushes the SLBs on SLB error. Patch 6 display's the MCE error details on console. Patch 7 saves and dumps the SLB contents on SLB MCE errors to improve the debugability. Patch 8 consolidates mce early real mode handling code. Change in V6: - Introduce patch 8 to consolidate early real mode handling code. - Address Nick's comment on erroneous hunk. Change in V5: - Use min_t instead of max_t. - Fix an issue reported by kbuild test robot and address review comments. Change in V4: - Flush the SLBs in real mode mce handler to handle SLB errors for entry 0. - Allocate buffers per cpu to hold rtas error log and old slb contents. - Defer the logging of rtas error log to irq work queue. Change in V3: - Moved patch 5 to patch 2 Change in V2: - patch 3: Display additional info (NIP and task info) in MCE error details. - patch 5: Fix endain bug while restoring of r3 in MCE handler. --- Mahesh Salgaonkar (8): powerpc/pseries: Avoid using the size greater than RTAS_ERROR_LOG_MAX. powerpc/pseries: Defer the logging of rtas error to irq work queue. powerpc/pseries: Fix endainness while restoring of r3 in MCE handler. powerpc/pseries: Define MCE error event section. powerpc/pseries: flush SLB contents on SLB MCE errors. powerpc/pseries: Display machine check error details. powerpc/pseries: Dump the SLB contents on SLB MCE errors. powernv/pseries: consolidate code for mce early handling. arch/powerpc/include/asm/book3s/64/mmu-hash.h | 8 + arch/powerpc/include/asm/machdep.h | 1 arch/powerpc/include/asm/paca.h | 4 arch/powerpc/include/asm/rtas.h | 116 ++++++++++++ arch/powerpc/kernel/exceptions-64s.S | 18 +- arch/powerpc/kernel/mce.c | 16 +- arch/powerpc/mm/slb.c | 63 +++++++ arch/powerpc/platforms/pseries/pseries.h | 1 arch/powerpc/platforms/pseries/ras.c | 242 +++++++++++++++++++++++-- arch/powerpc/platforms/pseries/setup.c | 27 +++ 10 files changed, 471 insertions(+), 25 deletions(-) -- Signature

7 years, 1 month

2
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[PATCH 4.14 000/246] 4.14.60-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.14.60 release. There are 246 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Fri Aug 3 16:49:18 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.14.60-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.14.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.14.60-rc1 Eric Dumazet <edumazet(a)google.com> tcp: add one more quick ack after after ECN events Yousuk Seung <ysseung(a)google.com> tcp: refactor tcp_ecn_check_ce to remove sk type cast Eric Dumazet <edumazet(a)google.com> tcp: do not aggressively quick ack after ECN events Eric Dumazet <edumazet(a)google.com> tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode Eric Dumazet <edumazet(a)google.com> tcp: do not force quickack when receiving out-of-order packets Dmitry Safonov <dima(a)arista.com> netlink: Don't shift with UB on nlk->ngroups Dmitry Safonov <dima(a)arista.com> netlink: Do not subscribe to non-existent groups Xiao Liang <xiliang(a)redhat.com> xen-netfront: wait xenbus state change when load module manually Neal Cardwell <ncardwell(a)google.com> tcp_bbr: fix bw probing to raise in-flight data for very small BDPs Eugeniy Paltsev <Eugeniy.Paltsev(a)synopsys.com> NET: stmmac: align DMA stuff to largest cache line length Anton Vasilyev <vasilyev(a)ispras.ru> net: mdio-mux: bcm-iproc: fix wrong getter and setter pair Stefan Wahren <stefan.wahren(a)i2se.com> net: lan78xx: fix rx handling before first packet is send tangpengpeng <tangpengpeng(a)higon.com> net: fix amd-xgbe flow-control issue Gal Pressman <pressmangal(a)gmail.com> net: ena: Fix use of uninitialized DMA address bits field Lorenzo Bianconi <lorenzo.bianconi(a)redhat.com> ipv4: remove BUG_ON() from fib_compute_spec_dst Michal Vokáč <vokac.m(a)gmail.com> net: dsa: qca8k: Allow overwriting CPU port setting Michal Vokáč <vokac.m(a)gmail.com> net: dsa: qca8k: Add QCA8334 binding documentation Michal Vokáč <vokac.m(a)gmail.com> net: dsa: qca8k: Enable RXMAC when bringing up a port Michal Vokáč <vokac.m(a)gmail.com> net: dsa: qca8k: Force CPU port to its highest bandwidth Leon Romanovsky <leonro(a)mellanox.com> RDMA/uverbs: Protect from attempts to create flows on unsupported QP Yoshihiro Shimoda <yoshihiro.shimoda.uh(a)renesas.com> usb: gadget: udc: renesas_usb3: should remove debugfs Chengguang Xu <cgxu(a)mykernel.net> ovl: Sync upper dirty data when syncing overlayfs Lorenzo Pieralisi <lorenzo.pieralisi(a)arm.com> PCI: xgene: Remove leftover pci_scan_child_bus() call Lukas Wunner <lukas(a)wunner.de> PCI: pciehp: Assume NoCompl+ for Thunderbolt ports Theodore Ts'o <tytso(a)mit.edu> ext4: fix check to prevent initializing reserved inodes Theodore Ts'o <tytso(a)mit.edu> ext4: check for allocation block validity with block group locked Theodore Ts'o <tytso(a)mit.edu> ext4: fix inline data updates with checksums enabled Linus Torvalds <torvalds(a)linux-foundation.org> squashfs: be more careful about metadata corruption Theodore Ts'o <tytso(a)mit.edu> random: mix rdrand with entropy sent in from userspace Greg Edwards <gedwards(a)ddn.com> block: reset bi_iter.bi_done after splitting bio Martin Wilck <mwilck(a)suse.com> blkdev: __blkdev_direct_IO_simple: fix leak in error case Martin Wilck <mwilck(a)suse.com> block: bio_iov_iter_get_pages: fix size of last iovec Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> drm/dp/mst: Fix off-by-one typo when dump payload table Ville Syrjälä <ville.syrjala(a)linux.intel.com> drm/atomic-helper: Drop plane->fb references only for drm_atomic_helper_shutdown() José Roberto de Souza <jose.souza(a)intel.com> drm: Add DP PSR2 sink enable bit Kirill Marinushkin <k.marinushkin(a)gmail.com> ASoC: topology: Add missing clock gating parameter when parsing hw_configs Kirill Marinushkin <k.marinushkin(a)gmail.com> ASoC: topology: Fix bclk and fsync inversion in set_link_hw_format() Mauro Carvalho Chehab <mchehab(a)kernel.org> media: si470x: fix __be16 annotations Mauro Carvalho Chehab <mchehab(a)kernel.org> media: atomisp: compat32: fix __user annotations Matthew R. Ochs <mrochs(a)linux.vnet.ibm.com> scsi: cxlflash: Avoid clobbering context control register value Uma Krishnan <ukrishn(a)linux.vnet.ibm.com> scsi: cxlflash: Synchronize reset and remove ops Shivasharan S <shivasharan.srikanteshwara(a)broadcom.com> scsi: megaraid_sas: Increase timeout by 1 sec for non-RAID fastpath IOs Xose Vazquez Perez <xose.vazquez(a)gmail.com> scsi: scsi_dh: replace too broad "TP9" string with the exact models Douglas Anderson <dianders(a)chromium.org> regulator: Don't return or expect -errno from of_map_mode() Suman Anna <s-anna(a)ti.com> media: omap3isp: fix unbalanced dma_iommu_mapping Tudor-Dan Ambarus <tudor.ambarus(a)microchip.com> crypto: authenc - don't leak pointers to authenc keys Tudor-Dan Ambarus <tudor.ambarus(a)microchip.com> crypto: authencesn - don't leak pointers to authenc keys Dominik Bozek <dominikx.bozek(a)intel.com> usb: hub: Don't wait for connect state at resume for powered-off ports Michal Simek <michal.simek(a)xilinx.com> microblaze: Fix simpleImage format generation Andrey Smirnov <andrew.smirnov(a)gmail.com> soc: imx: gpcv2: Do not pass static memory as platform data Douglas Anderson <dianders(a)chromium.org> serial: core: Make sure compiler barfs for 16-byte earlycon names NeilBrown <neilb(a)suse.com> staging: lustre: ldlm: free resource when ldlm_lock_create() fails. James Simmons <jsimmons(a)infradead.org> staging: lustre: llite: correct removexattr detection Stefan Wahren <stefan.wahren(a)i2se.com> staging: vchiq_core: Fix missing semaphore release in error case Ondrej Mosnáček <omosnace(a)redhat.com> audit: allow not equal op for audit by executable Siva Rebbagondla <siva.rebbagondla(a)redpinesignals.com> rsi: fix nommu_map_sg overflow kernel panic Siva Rebbagondla <siva.rebbagondla(a)redpinesignals.com> rsi: Fix 'invalid vdd' warning in mmc Chris Novakovic <chris(a)chrisn.me.uk> ipconfig: Correctly initialise ic_nameservers Luc Van Oostenryck <luc.vanoostenryck(a)gmail.com> drm/gma500: fix psb_intel_lvds_mode_valid()'s return type Vinicius Costa Gomes <vinicius.gomes(a)intel.com> igb: Fix queue selection on MAC filters on i210 Enric Balletbo i Serra <enric.balletbo(a)collabora.com> arm64: defconfig: Enable Rockchip io-domain driver Wei Xu <wxu(a)cnexlabs.com> nvme: lightnvm: add granby support Dmitry Osipenko <digetx(a)gmail.com> memory: tegra: Apply interrupts mask per SoC Dmitry Osipenko <digetx(a)gmail.com> memory: tegra: Do not handle spurious interrupts Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> delayacct: Use raw_spinlocks Thomas Gleixner <tglx(a)linutronix.de> stop_machine: Use raw spinlocks Wolfram Sang <wsa+renesas(a)sang-engineering.com> backlight: pwm_bl: Don't use GPIOF_* with gpiod_get_direction Kirill Tkhai <ktkhai(a)virtuozzo.com> fasync: Fix deadlock between task-context and interrupt-context kill_fasync() Yixun Lan <yixun.lan(a)amlogic.com> dt-bindings: net: meson-dwmac: new compatible name for AXG SoC Huazhong Tan <tanhuazhong(a)huawei.com> net: hns3: Fixes the out of bounds access in hclge_map_tqp Alexey Khoroshilov <khoroshilov(a)ispras.ru> spi: meson-spicc: Fix error handling in meson_spicc_probe() Martin Blumenstingl <martin.blumenstingl(a)googlemail.com> dt-bindings: pinctrl: meson: add support for the Meson8m2 SoC Tobin C. Harding <me(a)tobin.cc> mmc: pwrseq: Use kmalloc_array instead of stack VLA Shawn Lin <shawn.lin(a)rock-chips.com> mmc: dw_mmc: update actual clock for mmc debugfs Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: hda/ca0132: fix build failure when a local macro is defined Satendra Singh Thakur <satendra.t(a)samsung.com> drm/atomic: Handling the case when setting old crtc for plane Mauro Carvalho Chehab <mchehab(a)kernel.org> media: siano: get rid of __le32/__le16 cast warnings Jaegeuk Kim <jaegeuk(a)kernel.org> f2fs: avoid fsync() failure caused by EAGAIN in writepage() Jakub Kicinski <jakub.kicinski(a)netronome.com> bpf: fix references to free_bpf_prog_info() in comments Bartlomiej Zolnierkiewicz <b.zolnierkie(a)samsung.com> thermal: exynos: fix setting rising_threshold for Exynos5433 Doug Oucharek <dougso(a)me.com> staging: lustre: o2iblnd: Fix FastReg map/unmap for MLX5 Doug Oucahrek <dougso(a)me.com> staging: lustre: o2iblnd: fix race at kiblnd_connect_peer Chad Dupuis <chad.dupuis(a)cavium.com> scsi: qedf: Set the UNLOADING flag when removing a vport Xiang Chen <chenxiang66(a)hisilicon.com> scsi: hisi_sas: config ATA de-reset as an constrained command for v3 hw Dan Carpenter <dan.carpenter(a)oracle.com> scsi: megaraid: silence a static checker bug Wenwen Wang <wang6495(a)umn.edu> scsi: 3w-xxxx: fix a missing-check bug Wenwen Wang <wang6495(a)umn.edu> scsi: 3w-9xxx: fix a missing-check bug Michael Chan <michael.chan(a)broadcom.com> bnxt_en: Check unsupported speeds in bnxt_update_link() on PF only. Thomas Richter <tmricht(a)linux.ibm.com> perf: fix invalid bit in diagnostic entry Thomas Richter <tmricht(a)linux.ibm.com> s390/cpum_sf: Add data entry sizes to sampling trailer entry Sean Lanigan <sean(a)lano.id.au> brcmfmac: Add support for bcm43364 wireless chipset Jane Wan <Jane.Wan(a)nokia.com> mtd: rawnand: fsl_ifc: fix FSL NAND driver to read all ONFI parameter pages Brad Love <brad(a)nextdimension.cc> media: saa7164: Fix driver name in debug output Sami Tolvanen <samitolvanen(a)google.com> media: media-device: fix ioctl function types Hans de Goede <hdegoede(a)redhat.com> ACPI / LPSS: Only call pwm_add_table() for Bay Trail PWM if PMIC HRV is 2 Damien Le Moal <damien.lemoal(a)wdc.com> libata: Fix command retry decision Wei Yongjun <yongjun_wei(a)trendmicro.com.cn> media: rcar_jpu: Add missing clk_disable_unprepare() on error in jpu_open() Florian Fainelli <f.fainelli(a)gmail.com> net: phy: phylink: Release link GPIO Marc Zyngier <marc.zyngier(a)arm.com> dma-iommu: Fix compilation when !CONFIG_IOMMU_DMA DaeRyong Jeong <threeearcat(a)gmail.com> tty: Fix data race in tty_insert_flip_string_fixed_flag Jacob Keller <jacob.e.keller(a)intel.com> i40e: free the skb after clearing the bitlock Mathieu Malaterre <malat(a)debian.org> nvmem: properly handle returned value nvmem_reg_read Geert Uytterhoeven <geert+renesas(a)glider.be> ARM: dts: sh73a0: Add missing interrupt-affinity to PMU node Geert Uytterhoeven <geert+renesas(a)glider.be> ARM: dts: emev2: Add missing interrupt-affinity to PMU node Patrice Chotard <patrice.chotard(a)st.com> ARM: dts: stih407-pinctrl: Fix complain about IRQ_TYPE_NONE usage Thor Thayer <thor.thayer(a)linux.intel.com> EDAC, altera: Fix ARM64 build warning Dmitry Torokhov <dtor(a)chromium.org> HID: i2c-hid: check if device is there before really probing Jonathan Neuschäfer <j.neuschaefer(a)gmx.net> powerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet Samuel Li <Samuel.Li(a)amd.com> drm/amdgpu: Remove VRAM from shared bo domains. Luc Van Oostenryck <luc.vanoostenryck(a)gmail.com> drm/radeon: fix mode_valid's return type Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> arm64: dts: renesas: salvator-common: use audio-graph-card for Sound Terry Junge <terry.junge(a)plantronics.com> HID: hid-plantronics: Re-resend Update to map button for PTT products Will Deacon <will.deacon(a)arm.com> arm64: cmpwait: Clear event register before arming exclusive monitor Mauro Carvalho Chehab <mchehab(a)kernel.org> media: atomisp: ov2680: don't declare unused vars Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Apply rate limit to warning messages in URB complete callback Grygorii Strashko <grygorii.strashko(a)ti.com> net: ethernet: ti: cpsw-phy-sel: check bus_find_device() ret value Colin Ian King <colin.king(a)canonical.com> media: smiapp: fix timeout checking in smiapp_read_nvm Emil Tantilov <emil.s.tantilov(a)intel.com> ixgbevf: fix MAC address changes through ixgbevf_set_mac() Yufen Yu <yuyufen(a)huawei.com> md: fix NULL dereference of mddev->pers in remove_and_add_spares() Gioh Kim <gi-oh.kim(a)profitbricks.com> md/raid1: add error handling of read error from FailFast device Anson Huang <Anson.Huang(a)nxp.com> regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops Takashi Iwai <tiwai(a)suse.de> ALSA: emu10k1: Rate-limit error messages about page errors Alexandre Belloni <alexandre.belloni(a)bootlin.com> rtc: tps65910: fix possible race condition Alexandre Belloni <alexandre.belloni(a)bootlin.com> rtc: vr41xx: fix possible race condition Alexandre Belloni <alexandre.belloni(a)bootlin.com> rtc: tps6586x: fix possible race condition Vic Wei <vwei(a)codeaurora.org> Bluetooth: btusb: add ID for LiteOn 04ca:301a Ben Skeggs <bskeggs(a)redhat.com> drm/nouveau/fifo/gk104-: poll for runlist update completion Jens Remus <jremus(a)linux.ibm.com> scsi: zfcp: assert that the ERP lock is held when tracing a recovery trigger Maya Erez <merez(a)codeaurora.org> scsi: ufs: fix exception event handling Subhash Jadavani <subhashj(a)codeaurora.org> scsi: ufs: ufshcd: fix possible unclocked register access Eric Biggers <ebiggers(a)google.com> fscrypt: use unbound workqueue for decryption Xi Wang <wangxi11(a)huawei.com> net: hns3: Fix the missing client list node initialization Tony Lindgren <tony(a)atomide.com> spi: Add missing pm_runtime_put_noidle() after failed get Mark Rutland <mark.rutland(a)arm.com> drivers/perf: arm-ccn: don't log to dmesg in event_init Mimi Zohar <zohar(a)linux.vnet.ibm.com> ima: based on policy verify firmware signatures (pre-allocated buffer) Xinming Hu <huxm(a)marvell.com> mwifiex: correct histogram data with appropriate index Michal Vokáč <vokac.m(a)gmail.com> net: dsa: qca8k: Add support for QCA8334 switch Mika Westerberg <mika.westerberg(a)linux.intel.com> PCI: pciehp: Request control of native hotplug only if supported Sandipan Das <sandipan(a)linux.vnet.ibm.com> bpf: powerpc64: pad function address loads with NOPs Julia Lawall <Julia.Lawall(a)lip6.fr> pinctrl: at91-pio4: add missing of_node_put Christophe Leroy <christophe.leroy(a)c-s.fr> powerpc/8xx: fix invalid register expression in head_8xx.S Geert Uytterhoeven <geert+renesas(a)glider.be> spi: sh-msiof: Fix setting SIRMDR1.SYNCAC to match SITMDR1.SYNCAC Mathieu Malaterre <malat(a)debian.org> powerpc: Add __printf verification to prom_printf Mathieu Malaterre <malat(a)debian.org> powerpc/powermac: Mark variable x as unused Mathieu Malaterre <malat(a)debian.org> powerpc/powermac: Add missing prototype for note_bootable_part() Mathieu Malaterre <malat(a)debian.org> powerpc/chrp/time: Make some functions static, add missing header include Mathieu Malaterre <malat(a)debian.org> powerpc/32: Add a missing include header Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Bahamas Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Bermuda Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Serbia Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Tanzania Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Uganda Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for APL2_FCCA Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for APL13_WORLD Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for ETSI8_WORLD Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for FCC3_ETSIC Keith Busch <keith.busch(a)intel.com> nvme-pci: Fix AER reset handling Jianchao Wang <jianchao.w.wang(a)oracle.com> nvme-rdma: stop admin queue before freeing it Christoph Hellwig <hch(a)lst.de> PCI: Prevent sysfs disable of device while driver is attached Sebastian Andrzej Siewior <bigeasy(a)linutronix.de> PM / wakeup: Make s2idle_lock a RAW_SPINLOCK Scott Wood <swood(a)redhat.com> x86/microcode: Make the late update update_lock a raw lock for RT Qu Wenruo <wqu(a)suse.com> btrfs: qgroup: Finish rescan when hit the last leaf of extent tree David Sterba <dsterba(a)suse.com> btrfs: add barriers to btrfs_sync_log before log_commit_wait wakeups Omar Sandoval <osandov(a)fb.com> Btrfs: don't BUG_ON() in btrfs_truncate_inode_items() Omar Sandoval <osandov(a)fb.com> Btrfs: don't return ino to ino cache if inode item removal fails Hans Verkuil <hans.verkuil(a)cisco.com> media: videobuf2-core: don't call memop 'finish' when queueing Ezequiel Garcia <ezequiel(a)collabora.com> media: tw686x: Fix incorrect vb2_mem_ops GFP flags Fuyun Liang <liangfuyun1(a)huawei.com> net: hns3: Fixes the init of the VALID BD info in the descriptor Eyal Reizer <eyalreizer(a)gmail.com> wlcore: sdio: check for valid platform device data before suspend Ganapathi Bhat <gbhat(a)marvell.com> mwifiex: handle race during mwifiex_usb_disconnect Vincent Palatin <vpalatin(a)chromium.org> mfd: cros_ec: Fail early if we cannot identify the EC Kai Chieh Chuang <kaichieh.chuang(a)mediatek.com> ASoC: dpcm: fix BE dai not hw_free and shutdown Jian-Hong Pan <jian-hong(a)endlessm.com> Bluetooth: btusb: Add a new Realtek 8723DE ID 2ff8:b011 Thierry Escande <thierry.escande(a)linaro.org> Bluetooth: hci_qca: Fix "Sleep inside atomic section" warning Shaul Triebitz <shaul.triebitz(a)intel.com> iwlwifi: pcie: fix race in Rx buffer allocator Ethan Lien <ethanlien(a)synology.com> btrfs: balance dirty metadata pages in btrfs_finish_ordered_io Jan Kiszka <jan.kiszka(a)siemens.com> PCI: Fix devm_pci_alloc_host_bridge() memory leak Shuah Khan (Samsung OSG) <shuah(a)kernel.org> selftests: intel_pstate: return Kselftest Skip code for skipped tests Shuah Khan (Samsung OSG) <shuah(a)kernel.org> selftests: memfd: return Kselftest Skip code for skipped tests Daniel Díaz <daniel.diaz(a)linaro.org> selftests/intel_pstate: Improve test, minor fixes Kan Liang <kan.liang(a)intel.com> perf/x86/intel/uncore: Correct fixed counter index check for NHM Kan Liang <kan.liang(a)intel.com> perf/x86/intel/uncore: Correct fixed counter index check in generic code Michael Grzeschik <m.grzeschik(a)pengutronix.de> usbip: dynamically allocate idev by nports found in sysfs Shuah Khan (Samsung OSG) <shuah(a)kernel.org> usbip: usbip_detach: Fix memory, udev context and udev leak Filippo Muzzini <filippo.muzzini(a)outlook.it> block, bfq: remove wrong lock in bfq_requests_merged Chao Yu <yuchao0(a)huawei.com> f2fs: fix race in between GC and atomic open Chao Yu <yuchao0(a)huawei.com> f2fs: fix to detect failure of dquot_initialize Sahitya Tummala <stummala(a)codeaurora.org> f2fs: Fix deadlock in shutdown ioctl Chao Yu <yuchao0(a)huawei.com> f2fs: fix to wait page writeback during revoking atomic write Chao Yu <yuchao0(a)huawei.com> f2fs: fix to don't trigger writeback during recovery Chao Yu <yuchao0(a)huawei.com> f2fs: fix error path of move_data_page Anatoly Pugachev <matorola(a)gmail.com> disable loading f2fs module on PAGE_SIZE > 4KB Trond Myklebust <trond.myklebust(a)hammerspace.com> pnfs: Don't release the sequence slot until we've processed layoutget on open Alexey Kodanev <alexey.kodanev(a)oracle.com> netfilter: nf_tables: check msg_type before nft_trans_set(trans) Javier González <javier(a)cnexlabs.com> lightnvm: pblk: warn in case of corrupted write buffer Leon Romanovsky <leonro(a)mellanox.com> RDMA/mad: Convert BUG_ONs to error flows Nicholas Piggin <npiggin(a)gmail.com> powerpc/64s: Fix compiler store ordering to SLB shadow area Stewart Smith <stewart(a)linux.ibm.com> hvc_opal: don't set tb_ticks_per_usec in udbg_init_opal_common() Sam Bobroff <sbobroff(a)linux.ibm.com> powerpc/eeh: Fix use-after-release of EEH driver Michal Suchanek <msuchanek(a)suse.de> powerpc/64s: Add barrier_nospec Christophe Leroy <christophe.leroy(a)c-s.fr> powerpc/lib: Adjust .balign inside string functions for PPC32 Cong Wang <xiyou.wangcong(a)gmail.com> infiniband: fix a possible use-after-free bug Benjamin Poirier <bpoirier(a)suse.com> e1000e: Ignore TSYNCRXCTL when getting I219 clock attributes Chengguang Xu <cgxu519(a)gmx.com> ceph: fix alignment of rasize Wang YanQing <udknight(a)gmail.com> bpf, arm32: fix inconsistent naming about emit_a32_lsr_{r64,i64} Sergey Senozhatsky <sergey.senozhatsky.work(a)gmail.com> printk: drop in_nmi check from printk_safe_flush_on_panic() Marco Felsch <m.felsch(a)pengutronix.de> watchdog: da9063: Fix updating timeout value Laurentiu Tudor <laurentiu.tudor(a)nxp.com> irqchip/ls-scfg-msi: Map MSIs in the iommu Jozsef Kadlecsik <kadlec(a)blackhole.kfki.hu> netfilter: ipset: List timing out entries with "timeout 1" instead of zero Florent Fourcot <florent.fourcot(a)wifirst.fr> netfilter: ipset: forbid family for hash:mac sets Jiri Olsa <jolsa(a)kernel.org> perf tools: Fix pmu events parsing rule Alexandre Belloni <alexandre.belloni(a)bootlin.com> rtc: ensure rtc_set_alarm fails when alarms are not supported Mathieu Malaterre <malat(a)debian.org> mm/slub.c: add __printf verification to slab_err() Chintan Pandya <cpandya(a)codeaurora.org> mm: vmalloc: avoid racy handling of debugobjects in vunmap Huang Ying <ying.huang(a)intel.com> mm: /proc/pid/pagemap: hide swap entries from unprivileged users Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> kernel/hung_task.c: show all hung tasks before panic Alex Williamson <alex.williamson(a)redhat.com> vfio/type1: Fix task tracking for QEMU vCPU hotplug Alex Williamson <alex.williamson(a)redhat.com> vfio/mdev: Check globally for duplicate devices Geert Uytterhoeven <geert+renesas(a)glider.be> vfio: platform: Fix reset module leak in error path Scott Mayhew <smayhew(a)redhat.com> nfsd: fix potential use-after-free in nfsd4_decode_getdeviceinfo Trond Myklebust <trond.myklebust(a)hammerspace.com> NFSv4.1: Fix the client behaviour on NFS4ERR_SEQ_FALSE_RETRY Zhouyang Jia <jiazhouyang09(a)gmail.com> ALSA: fm801: add error handling for snd_ctl_add Zhouyang Jia <jiazhouyang09(a)gmail.com> ALSA: emu10k1: add error handling for snd_ctl_add Olga Kornievskaia <olga.kornievskaia(a)gmail.com> skip LAYOUTRETURN if layout is invalid Stephen Hemminger <stephen(a)networkplumber.org> hv_netvsc: fix network namespace issues with VF support Juergen Gross <jgross(a)suse.com> xen/netfront: raise max number of slots in xennet_get_responses() Mark Rutland <mark.rutland(a)arm.com> kcov: ensure irq code sees a valid area Petr Machata <petrm(a)mellanox.com> mlxsw: spectrum_switchdev: Fix port_vlan refcounting Johannes Weiner <hannes(a)cmpxchg.org> arm64: fix vmemmap BUILD_BUG_ON() triggering on !vmemmap setups Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Quiet gcc warning about maybe unused link variable Artem Savkov <asavkov(a)redhat.com> tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure Snild Dolkow <snild(a)sony.com> kthread, tracing: Don't expose half-written comm when creating kthreads Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Fix possible double free in event_enable_trigger_func() Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Fix double free of event_trigger_data Tejun Heo <tj(a)kernel.org> delayacct: fix crash in delayacct_blkio_end() after delayacct init failure Shakeel Butt <shakeelb(a)google.com> kvm, mm: account shadow page tables to kmemcg KT Liao <kt.liao(a)emc.com.tw> Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST Chen-Yu Tsai <wens(a)csie.org> Input: i8042 - add Lenovo LaVie Z to the i8042 reset list Donald Shanty III <dshanty(a)protonmail.com> Input: elan_i2c - add ACPI ID for lenovo ideapad 330 Marek Szyprowski <m.szyprowski(a)samsung.com> spi: spi-s3c64xx: Fix system resume support Andrew Morton <akpm(a)linux-foundation.org> drivers/infiniband/ulp/srpt/ib_srpt.c: fix build with gcc-4.4.4 Bart Van Assche <bart.vanassche(a)wdc.com> IB/srpt: Fix an out-of-bounds stack access in srpt_zerolength_write() Andrew Morton <akpm(a)linux-foundation.org> drivers/infiniband/core/verbs.c: fix build with gcc-4.4.4 Bart Van Assche <bart.vanassche(a)wdc.com> RDMA/core: Avoid that ib_drain_qp() triggers an out-of-bounds stack access Lixin Wang <alan.1.wang(a)nokia-sbell.com> i2c: core: decrease reference count of device node in i2c_unregister_device Kees Cook <keescook(a)chromium.org> fork: unconditionally clear stack on fork ------------- Diffstat: .../devicetree/bindings/net/dsa/qca8k.txt | 23 ++++- .../devicetree/bindings/net/meson-dwmac.txt | 1 + .../devicetree/bindings/pinctrl/meson,pinctrl.txt | 2 + Documentation/vfio-mediated-device.txt | 5 + Makefile | 4 +- arch/arm/boot/dts/emev2.dtsi | 5 +- arch/arm/boot/dts/sh73a0.dtsi | 5 +- arch/arm/boot/dts/stih407-pinctrl.dtsi | 10 +- arch/arm/net/bpf_jit_32.c | 10 +- arch/arm64/boot/dts/renesas/salvator-common.dtsi | 38 ++++--- arch/arm64/configs/defconfig | 2 + arch/arm64/include/asm/cmpxchg.h | 4 +- arch/arm64/mm/init.c | 4 +- arch/microblaze/boot/Makefile | 10 +- arch/powerpc/include/asm/barrier.h | 15 +++ arch/powerpc/include/asm/cache.h | 3 + arch/powerpc/kernel/eeh_driver.c | 28 ++--- arch/powerpc/kernel/head_8xx.S | 2 +- arch/powerpc/kernel/pci_32.c | 1 + arch/powerpc/kernel/prom_init.c | 114 +++++++++++---------- arch/powerpc/lib/string.S | 7 +- arch/powerpc/mm/slb.c | 8 +- arch/powerpc/net/bpf_jit_comp64.c | 34 ++++-- arch/powerpc/platforms/chrp/time.c | 6 +- arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 5 + arch/powerpc/platforms/powermac/bootx_init.c | 4 +- arch/powerpc/platforms/powermac/setup.c | 1 + arch/s390/include/asm/cpu_mf.h | 6 +- arch/x86/events/intel/uncore.c | 2 +- arch/x86/events/intel/uncore_nhmex.c | 2 +- arch/x86/kernel/cpu/microcode/core.c | 6 +- arch/x86/kvm/mmu.c | 2 +- block/bfq-iosched.c | 2 - block/bio.c | 19 ++-- crypto/authenc.c | 1 + crypto/authencesn.c | 1 + drivers/acpi/acpi_lpss.c | 6 +- drivers/acpi/pci_root.c | 4 +- drivers/ata/libata-eh.c | 12 ++- drivers/bluetooth/btusb.c | 4 + drivers/bluetooth/hci_qca.c | 2 +- drivers/bus/arm-ccn.c | 20 ++-- drivers/char/random.c | 10 +- drivers/edac/altera_edac.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 8 +- drivers/gpu/drm/drm_atomic.c | 4 +- drivers/gpu/drm/drm_atomic_helper.c | 78 +++++++------- drivers/gpu/drm/drm_dp_mst_topology.c | 9 +- drivers/gpu/drm/gma500/psb_intel_drv.h | 2 +- drivers/gpu/drm/gma500/psb_intel_lvds.c | 2 +- drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c | 8 +- drivers/gpu/drm/radeon/radeon_connectors.c | 10 +- drivers/hid/hid-plantronics.c | 6 +- drivers/hid/i2c-hid/i2c-hid.c | 8 ++ drivers/i2c/i2c-core-base.c | 5 +- drivers/infiniband/core/mad.c | 11 +- drivers/infiniband/core/ucma.c | 6 +- drivers/infiniband/core/uverbs_cmd.c | 5 + drivers/infiniband/core/verbs.c | 12 ++- drivers/infiniband/ulp/srpt/ib_srpt.c | 16 +-- drivers/input/mouse/elan_i2c_core.c | 2 + drivers/input/serio/i8042-x86ia64io.h | 7 ++ drivers/irqchip/irq-ls-scfg-msi.c | 3 + drivers/lightnvm/pblk-rb.c | 5 +- drivers/md/md.c | 3 + drivers/md/raid1.c | 2 + drivers/media/common/siano/smsendian.c | 14 +-- drivers/media/i2c/smiapp/smiapp-core.c | 11 +- drivers/media/media-device.c | 21 ++-- drivers/media/pci/saa7164/saa7164-fw.c | 3 +- drivers/media/pci/tw686x/tw686x-video.c | 3 +- drivers/media/platform/omap3isp/isp.c | 7 +- drivers/media/platform/rcar_jpu.c | 4 +- drivers/media/radio/si470x/radio-si470x-i2c.c | 6 +- drivers/media/v4l2-core/videobuf2-core.c | 9 +- drivers/memory/tegra/mc.c | 22 +--- drivers/memory/tegra/mc.h | 9 ++ drivers/memory/tegra/tegra114.c | 2 + drivers/memory/tegra/tegra124.c | 6 ++ drivers/memory/tegra/tegra210.c | 3 + drivers/memory/tegra/tegra30.c | 2 + drivers/mfd/cros_ec.c | 6 +- drivers/mmc/core/pwrseq_simple.c | 14 ++- drivers/mmc/host/dw_mmc.c | 4 + drivers/mtd/nand/fsl_ifc_nand.c | 17 +-- drivers/net/dsa/qca8k.c | 52 +++++++++- drivers/net/dsa/qca8k.h | 7 +- drivers/net/ethernet/amazon/ena/ena_com.c | 1 + drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 4 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 3 + .../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 7 +- .../net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c | 4 + drivers/net/ethernet/intel/e1000e/netdev.c | 15 ++- drivers/net/ethernet/intel/i40e/i40e_ptp.c | 7 +- drivers/net/ethernet/intel/igb/igb_main.c | 9 +- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 1 + .../ethernet/mellanox/mlxsw/spectrum_switchdev.c | 4 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/ethernet/ti/cpsw-phy-sel.c | 8 +- drivers/net/hyperv/hyperv_net.h | 2 + drivers/net/hyperv/netvsc_drv.c | 43 ++++---- drivers/net/phy/mdio-mux-bcm-iproc.c | 2 +- drivers/net/phy/phylink.c | 2 + drivers/net/usb/lan78xx.c | 2 + drivers/net/wireless/ath/regd.h | 5 + drivers/net/wireless/ath/regd_common.h | 13 +++ .../wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c | 1 + drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 2 + drivers/net/wireless/marvell/mwifiex/usb.c | 3 + drivers/net/wireless/marvell/mwifiex/util.c | 8 +- drivers/net/wireless/rsi/rsi_91x_hal.c | 35 ++++--- drivers/net/wireless/rsi/rsi_91x_sdio.c | 23 +++-- drivers/net/wireless/rsi/rsi_sdio.h | 2 +- drivers/net/wireless/ti/wlcore/sdio.c | 5 + drivers/net/xen-netfront.c | 10 +- drivers/nvme/host/pci.c | 5 + drivers/nvme/host/rdma.c | 10 +- drivers/nvmem/core.c | 7 ++ drivers/pci/host/pci-xgene.c | 1 - drivers/pci/hotplug/pciehp_hpc.c | 7 ++ drivers/pci/pci-sysfs.c | 15 +-- drivers/pci/probe.c | 4 +- drivers/pinctrl/pinctrl-at91-pio4.c | 4 +- drivers/regulator/cpcap-regulator.c | 2 +- drivers/regulator/of_regulator.c | 13 +-- drivers/regulator/pfuze100-regulator.c | 1 + drivers/regulator/twl-regulator.c | 2 +- drivers/rtc/interface.c | 5 + drivers/rtc/rtc-tps6586x.c | 14 ++- drivers/rtc/rtc-tps65910.c | 12 ++- drivers/rtc/rtc-vr41xx.c | 9 +- drivers/s390/scsi/zfcp_dbf.c | 2 + drivers/scsi/3w-9xxx.c | 5 + drivers/scsi/3w-xxxx.c | 3 + drivers/scsi/cxlflash/main.c | 11 +- drivers/scsi/cxlflash/sislite.h | 1 + drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 11 +- drivers/scsi/megaraid.c | 3 + drivers/scsi/megaraid/megaraid_sas_fusion.c | 3 + drivers/scsi/qedf/qedf_main.c | 10 ++ drivers/scsi/scsi_dh.c | 5 +- drivers/scsi/ufs/ufshcd.c | 28 +++-- drivers/soc/imx/gpcv2.c | 22 ++-- drivers/spi/spi-meson-spicc.c | 11 +- drivers/spi/spi-s3c64xx.c | 4 +- drivers/spi/spi-sh-msiof.c | 6 +- drivers/spi/spi.c | 1 + .../staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c | 2 +- .../staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c | 30 +++--- drivers/staging/lustre/lustre/ldlm/ldlm_lock.c | 6 +- drivers/staging/lustre/lustre/llite/xattr.c | 6 +- drivers/staging/media/atomisp/i2c/ov2680.c | 6 +- .../atomisp/pci/atomisp2/atomisp_compat_ioctl32.c | 49 ++++----- .../vc04_services/interface/vchiq_arm/vchiq_core.c | 1 + drivers/thermal/samsung/exynos_tmu.c | 1 + drivers/tty/hvc/hvc_opal.c | 1 - drivers/tty/pty.c | 3 + drivers/usb/core/hub.c | 4 + drivers/usb/gadget/udc/renesas_usb3.c | 8 +- drivers/vfio/mdev/mdev_core.c | 102 +++++++----------- drivers/vfio/mdev/mdev_private.h | 2 +- drivers/vfio/platform/vfio_platform_common.c | 15 ++- drivers/vfio/vfio_iommu_type1.c | 73 ++++++++----- drivers/video/backlight/pwm_bl.c | 6 +- drivers/watchdog/da9063_wdt.c | 17 ++- fs/block_dev.c | 9 +- fs/btrfs/inode.c | 33 +++--- fs/btrfs/qgroup.c | 19 ++++ fs/btrfs/tree-log.c | 10 +- fs/ceph/super.c | 2 +- fs/crypto/crypto.c | 11 +- fs/ext4/balloc.c | 3 + fs/ext4/ialloc.c | 8 +- fs/ext4/inline.c | 19 ++-- fs/ext4/inode.c | 16 ++- fs/ext4/super.c | 8 +- fs/f2fs/data.c | 8 +- fs/f2fs/file.c | 18 +++- fs/f2fs/gc.c | 11 +- fs/f2fs/segment.c | 5 + fs/f2fs/super.c | 6 ++ fs/fcntl.c | 15 ++- fs/nfs/nfs4proc.c | 14 ++- fs/nfs/pnfs.c | 6 +- fs/nfsd/nfs4xdr.c | 2 + fs/overlayfs/super.c | 19 +++- fs/proc/task_mmu.c | 26 +++-- fs/squashfs/cache.c | 3 + fs/squashfs/file.c | 8 +- fs/squashfs/fragment.c | 4 +- fs/squashfs/squashfs_fs.h | 6 ++ include/drm/drm_dp_helper.h | 1 + include/linux/delayacct.h | 4 +- include/linux/dma-iommu.h | 1 + include/linux/fs.h | 2 +- include/linux/mmc/sdio_ids.h | 1 + include/linux/netfilter/ipset/ip_set_timeout.h | 10 +- include/linux/regulator/consumer.h | 1 + include/linux/serial_core.h | 3 +- include/linux/thread_info.h | 6 +- include/net/tcp.h | 2 +- include/soc/tegra/mc.h | 2 + include/uapi/sound/asoc.h | 23 ++++- kernel/auditfilter.c | 2 +- kernel/auditsc.c | 2 + kernel/bpf/verifier.c | 4 +- kernel/delayacct.c | 17 +-- kernel/fork.c | 3 +- kernel/hung_task.c | 11 +- kernel/kcov.c | 3 +- kernel/kthread.c | 8 +- kernel/power/suspend.c | 14 +-- kernel/printk/printk_safe.c | 2 +- kernel/stop_machine.c | 24 ++--- kernel/trace/trace_events_trigger.c | 18 +++- kernel/trace/trace_kprobe.c | 15 ++- mm/slub.c | 2 +- mm/vmalloc.c | 3 +- net/ipv4/fib_frontend.c | 4 +- net/ipv4/ipconfig.c | 13 +++ net/ipv4/tcp_bbr.c | 4 + net/ipv4/tcp_dctcp.c | 4 +- net/ipv4/tcp_input.c | 48 ++++----- net/netfilter/ipset/ip_set_hash_gen.h | 5 +- net/netfilter/nf_tables_api.c | 11 +- net/netlink/af_netlink.c | 5 + security/integrity/ima/ima_main.c | 1 + sound/pci/emu10k1/emupcm.c | 4 +- sound/pci/emu10k1/memory.c | 6 +- sound/pci/fm801.c | 16 ++- sound/pci/hda/patch_ca0132.c | 8 +- sound/soc/soc-pcm.c | 6 +- sound/soc/soc-topology.c | 19 +++- sound/usb/pcm.c | 2 +- tools/perf/util/parse-events.y | 14 ++- tools/testing/selftests/intel_pstate/run.sh | 29 +++--- tools/testing/selftests/memfd/run_tests.sh | 14 ++- tools/usb/usbip/libsrc/vhci_driver.c | 32 +++--- tools/usb/usbip/libsrc/vhci_driver.h | 3 +- tools/usb/usbip/src/usbip_detach.c | 9 +- 240 files changed, 1573 insertions(+), 835 deletions(-)

7 years, 1 month

6
239
0 0

need your reply

by Julian Jones

You have needs for image editing for our studio? Our studio does different image editing for e-commerce photos, jewelry images, and portrait mages. It includes cutting out and clipping path and the others, like retouching etc. Drop us a photo, testing will be provided. Thanks, Julian

7 years, 1 month

1
0
0 0

Applied "ASoC: wm_adsp: Correct DSP pointer for preloader control" to the asoc tree

by Mark Brown

The patch ASoC: wm_adsp: Correct DSP pointer for preloader control has been applied to the asoc tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From b1470d4ce77c2d60661c7d5325d4fb8063e15ff8 Mon Sep 17 00:00:00 2001 From: Ajit Pandey <ajit.pandey(a)cirrus.com> Date: Tue, 7 Aug 2018 18:30:42 +0100 Subject: [PATCH] ASoC: wm_adsp: Correct DSP pointer for preloader control The offset of the DSP core needs to be taken into account for the DSP preloader control get and put. Currently the dsp->preloaded variable will only ever be read/updated on the first DSP, whilst this doesn't affect the operation of the control the readback will be incorrect. Signed-off-by: Ajit Pandey <ajit.pandey(a)cirrus.com> Signed-off-by: Charles Keepax <ckeepax(a)opensource.cirrus.com> Signed-off-by: Mark Brown <broonie(a)kernel.org> Cc: stable(a)vger.kernel.org --- sound/soc/codecs/wm_adsp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 4e7f8525449e..08dc82770273 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -2643,7 +2643,10 @@ int wm_adsp2_preloader_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); - struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); + struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct wm_adsp *dsp = &dsps[mc->shift - 1]; ucontrol->value.integer.value[0] = dsp->preloaded; @@ -2655,10 +2658,11 @@ int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); - struct wm_adsp *dsp = snd_soc_component_get_drvdata(component); + struct wm_adsp *dsps = snd_soc_component_get_drvdata(component); struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; + struct wm_adsp *dsp = &dsps[mc->shift - 1]; char preload[32]; snprintf(preload, ARRAY_SIZE(preload), "DSP%u Preload", mc->shift); -- 2.18.0

7 years, 1 month

1
0
0 0

editing the images

by Julian Jones

You have needs for image editing for our studio? Our studio does different image editing for e-commerce photos, jewelry images, and portrait mages. It includes cutting out and clipping path and the others, like retouching etc. Drop us a photo, testing will be provided. Thanks, Julian

7 years, 1 month

1
0
0 0

[PATCH v3 1/2] powerpc/fadump: handle crash memory ranges array index overflow

by Hari Bathini

Crash memory ranges is an array of memory ranges of the crashing kernel to be exported as a dump via /proc/vmcore file. The size of the array is set based on INIT_MEMBLOCK_REGIONS, which works alright in most cases where memblock memory regions count is less than INIT_MEMBLOCK_REGIONS value. But this count can grow beyond INIT_MEMBLOCK_REGIONS value since commit 142b45a72e22 ("memblock: Add array resizing support"). On large memory systems with a few DLPAR operations, the memblock memory regions count could be larger than INIT_MEMBLOCK_REGIONS value. On such systems, registering fadump results in crash or other system failures like below: task: c00007f39a290010 ti: c00000000b738000 task.ti: c00000000b738000 NIP: c000000000047df4 LR: c0000000000f9e58 CTR: c00000000010f180 REGS: c00000000b73b570 TRAP: 0300 Tainted: G L X (4.4.140+) MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 22004484 XER: 20000000 CFAR: c000000000008500 DAR: 000007a450000000 DSISR: 40000000 SOFTE: 0 GPR00: c0000000000f9e58 c00000000b73b7f0 c000000000f09a00 000000000000001a GPR04: c00007f3bf774c90 0000000000000004 c000000000eb9a00 0000000000000800 GPR08: 0000000000000804 000007a450000000 c000000000fa9a00 c00007ffb169ca20 GPR12: 0000000022004482 c00000000fa12c00 c00007f3a0ea97a8 0000000000000000 GPR16: c00007f3a0ea9a50 c00000000b73bd60 0000000000000118 000000000001fe80 GPR20: 0000000000000118 0000000000000000 c000000000b8c980 00000000000000d0 GPR24: 000007ffb0b10000 c00007ffb169c980 0000000000000000 c000000000b8c980 GPR28: 0000000000000004 c00007ffb169c980 000000000000001a c00007ffb169c980 NIP [c000000000047df4] smp_send_reschedule+0x24/0x80 LR [c0000000000f9e58] resched_curr+0x138/0x160 Call Trace: [c00000000b73b7f0] [c0000000000f9e58] resched_curr+0x138/0x160 (unreliable) [c00000000b73b820] [c0000000000fb538] check_preempt_curr+0xc8/0xf0 [c00000000b73b850] [c0000000000fb598] ttwu_do_wakeup+0x38/0x150 [c00000000b73b890] [c0000000000fc9c4] try_to_wake_up+0x224/0x4d0 [c00000000b73b900] [c00000000011ef34] __wake_up_common+0x94/0x100 [c00000000b73b960] [c00000000034a78c] ep_poll_callback+0xac/0x1c0 [c00000000b73b9b0] [c00000000011ef34] __wake_up_common+0x94/0x100 [c00000000b73ba10] [c00000000011f810] __wake_up_sync_key+0x70/0xa0 [c00000000b73ba60] [c00000000067c3e8] sock_def_readable+0x58/0xa0 [c00000000b73ba90] [c0000000007848ac] unix_stream_sendmsg+0x2dc/0x4c0 [c00000000b73bb70] [c000000000675a38] sock_sendmsg+0x68/0xa0 [c00000000b73bba0] [c00000000067673c] ___sys_sendmsg+0x2cc/0x2e0 [c00000000b73bd30] [c000000000677dbc] __sys_sendmsg+0x5c/0xc0 [c00000000b73bdd0] [c0000000006789bc] SyS_socketcall+0x36c/0x3f0 [c00000000b73be30] [c000000000009488] system_call+0x3c/0x100 Instruction dump: 4e800020 60000000 60420000 3c4c00ec 38421c30 7c0802a6 f8010010 60000000 3d42000a e92ab420 2fa90000 4dde0020 <e9290000> 2fa90000 419e0044 7c0802a6 ---[ end trace a6d1dd4bab5f8253 ]--- as array index overflow is not checked for while setting up crash memory ranges causing memory corruption. To resolve this issue, dynamically allocate memory for crash memory ranges and resize it incrementally, in units of pagesize, on hitting array size limit. Fixes: 2df173d9e85d ("fadump: Initialize elfcore header and add PT_LOAD program headers.") Cc: stable(a)vger.kernel.org Cc: Mahesh Salgaonkar <mahesh(a)linux.vnet.ibm.com> Signed-off-by: Hari Bathini <hbathini(a)linux.ibm.com> Reviewed-by: Mahesh Salgaonkar <mahesh(a)linux.vnet.ibm.com> --- Changes in v3: * Included <linux/slab.h> for krelloc() arch/powerpc/include/asm/fadump.h | 4 +- arch/powerpc/kernel/fadump.c | 92 +++++++++++++++++++++++++++++++------ 2 files changed, 80 insertions(+), 16 deletions(-) diff --git a/arch/powerpc/include/asm/fadump.h b/arch/powerpc/include/asm/fadump.h index 5a23010..3abc738 100644 --- a/arch/powerpc/include/asm/fadump.h +++ b/arch/powerpc/include/asm/fadump.h @@ -195,8 +195,8 @@ struct fadump_crash_info_header { struct cpumask online_mask; }; -/* Crash memory ranges */ -#define INIT_CRASHMEM_RANGES (INIT_MEMBLOCK_REGIONS + 2) +/* Crash memory ranges size unit (pagesize) */ +#define CRASHMEM_RANGES_ALLOC_SIZE PAGE_SIZE struct fad_crash_memory_ranges { unsigned long long base; diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 07e8396..9f80a78 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -34,6 +34,7 @@ #include <linux/crash_dump.h> #include <linux/kobject.h> #include <linux/sysfs.h> +#include <linux/slab.h> #include <asm/debugfs.h> #include <asm/page.h> @@ -47,8 +48,10 @@ static struct fadump_mem_struct fdm; static const struct fadump_mem_struct *fdm_active; static DEFINE_MUTEX(fadump_mutex); -struct fad_crash_memory_ranges crash_memory_ranges[INIT_CRASHMEM_RANGES]; +struct fad_crash_memory_ranges *crash_memory_ranges; +int crash_memory_ranges_size; int crash_mem_ranges; +int max_crash_mem_ranges; /* Scan the Firmware Assisted dump configuration details. */ int __init early_init_dt_scan_fw_dump(unsigned long node, @@ -868,22 +871,67 @@ static int __init process_fadump(const struct fadump_mem_struct *fdm_active) return 0; } -static inline void fadump_add_crash_memory(unsigned long long base, - unsigned long long end) +static void free_crash_memory_ranges(void) +{ + kfree(crash_memory_ranges); + crash_memory_ranges = NULL; + crash_memory_ranges_size = 0; + max_crash_mem_ranges = 0; +} + +/* + * Allocate or reallocate crash memory ranges array in incremental units + * of CRASHMEM_RANGES_ALLOC_SIZE. + */ +static int allocate_crash_memory_ranges(void) +{ + u64 new_size; + struct fad_crash_memory_ranges *new_array; + + new_size = crash_memory_ranges_size + CRASHMEM_RANGES_ALLOC_SIZE; + pr_debug("Allocating %llu bytes of memory for crash memory ranges\n", + new_size); + + new_array = krealloc(crash_memory_ranges, new_size, GFP_KERNEL); + if (new_array == NULL) { + pr_err("Insufficient memory for setting up crash memory ranges\n"); + free_crash_memory_ranges(); + return -ENOMEM; + } + + crash_memory_ranges = new_array; + crash_memory_ranges_size = new_size; + max_crash_mem_ranges = (new_size / + sizeof(struct fad_crash_memory_ranges)); + return 0; +} + +static inline int fadump_add_crash_memory(unsigned long long base, + unsigned long long end) { if (base == end) - return; + return 0; + + if (crash_mem_ranges == max_crash_mem_ranges) { + int ret; + + ret = allocate_crash_memory_ranges(); + if (ret) + return ret; + } pr_debug("crash_memory_range[%d] [%#016llx-%#016llx], %#llx bytes\n", crash_mem_ranges, base, end - 1, (end - base)); crash_memory_ranges[crash_mem_ranges].base = base; crash_memory_ranges[crash_mem_ranges].size = end - base; crash_mem_ranges++; + return 0; } -static void fadump_exclude_reserved_area(unsigned long long start, +static int fadump_exclude_reserved_area(unsigned long long start, unsigned long long end) { + int ret = 0; unsigned long long ra_start, ra_end; ra_start = fw_dump.reserve_dump_area_start; @@ -891,15 +939,20 @@ static void fadump_exclude_reserved_area(unsigned long long start, if ((ra_start < end) && (ra_end > start)) { if ((start < ra_start) && (end > ra_end)) { - fadump_add_crash_memory(start, ra_start); - fadump_add_crash_memory(ra_end, end); + ret = fadump_add_crash_memory(start, ra_start); + if (ret) + return ret; + + ret = fadump_add_crash_memory(ra_end, end); } else if (start < ra_start) { - fadump_add_crash_memory(start, ra_start); + ret = fadump_add_crash_memory(start, ra_start); } else if (ra_end < end) { - fadump_add_crash_memory(ra_end, end); + ret = fadump_add_crash_memory(ra_end, end); } } else - fadump_add_crash_memory(start, end); + ret = fadump_add_crash_memory(start, end); + + return ret; } static int fadump_init_elfcore_header(char *bufp) @@ -939,8 +992,9 @@ static int fadump_init_elfcore_header(char *bufp) * Traverse through memblock structure and setup crash memory ranges. These * ranges will be used create PT_LOAD program headers in elfcore header. */ -static void fadump_setup_crash_memory_ranges(void) +static int fadump_setup_crash_memory_ranges(void) { + int ret; struct memblock_region *reg; unsigned long long start, end; @@ -953,7 +1007,9 @@ static void fadump_setup_crash_memory_ranges(void) * specified during fadump registration. We need to create a separate * program header for this chunk with the correct offset. */ - fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size); + ret = fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size); + if (ret) + return ret; for_each_memblock(memory, reg) { start = (unsigned long long)reg->base; @@ -973,8 +1029,12 @@ static void fadump_setup_crash_memory_ranges(void) } /* add this range excluding the reserved dump area. */ - fadump_exclude_reserved_area(start, end); + ret = fadump_exclude_reserved_area(start, end); + if (ret) + return ret; } + + return 0; } /* @@ -1095,6 +1155,7 @@ static unsigned long init_fadump_header(unsigned long addr) static int register_fadump(void) { + int ret; unsigned long addr; void *vaddr; @@ -1105,7 +1166,9 @@ static int register_fadump(void) if (!fw_dump.reserve_dump_area_size) return -ENODEV; - fadump_setup_crash_memory_ranges(); + ret = fadump_setup_crash_memory_ranges(); + if (ret) + return ret; addr = be64_to_cpu(fdm.rmr_region.destination_address) + be64_to_cpu(fdm.rmr_region.source_len); /* Initialize fadump crash info header. */ @@ -1183,6 +1246,7 @@ void fadump_cleanup(void) } else if (fw_dump.dump_registered) { /* Un-register Firmware-assisted dump if it was registered. */ fadump_unregister_dump(&fdm); + free_crash_memory_ranges(); } }

7 years, 1 month

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AW: Kontakt

by BL Support

Guten Tag Nachdem wir Ihre Internetseite besucht und uns mit dem Angebot vertraut gemacht hatten, trafen wir die Entscheidung, die vorliegende E-Mail zu verfassen. Wir verfügen über Kontakte zu Firmen in Deutschland, die an der Aufnahme der potentiellen Zusammenarbeit mit Ihnen interessiert wären. Mithilfe unserer Tools können Sie Ihre Zielbranche schnell aufsuchen und neue Kunden erreichen. http://www.kontakt-marketing-at.net/ MfG BL-Team.

7 years, 1 month

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[RESEND] requests for xfs patches inclusion in 4.14.y

by Eduardo Valentin

Greg, Please consider adding the following XFS patches on linux-4.14.y branch to fix NULL pointer dereference errors in lookup_slow() on a NULL inode->i_ops and for a corrupted xfs image after xfs_da_shrink_inode(): ee457001ed6c ("xfs: catch inode allocation state mismatch corruption") afca6c5b2595 ("xfs: validate cached inodes are free when allocated") bb3d48dcf86a ("xfs: don't call xfs_da_shrink_inode with NULL bp") Thanks. -- All the best, Eduardo Valentin

7 years, 1 month

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Tom Gall <tom.gall@linaro.org>, Alistair Strachan <alistair.strachan@linaro.org>, Greg Kroah-Hartman <gregkh@google.com>, "avid S. Miller" <davem@davemloft.net>, John Stultz <john.stultz@linaro.org>, Thomas Egerer <hakke_007@gmx.de>, Herbert Xu <herbert@gondor.apana.org.au>

by Yongqin Liu

Hi, All Sorry, I am following the instructions in Documentation/networking/netdev-FAQ.txt to send out this mail, if I was wrong or there are more things I need to do, please let me know. After investigated on some failures of the android VtsKernelNetTest module test, I found that without the change of "ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV", the config of CRYPTO_ECHAINIV will be generated as m by default in the .config file, which needs more module loading process to be done. But with the 4.9 and 4.14 kernels which have the change, CRYPTO_ECHAINIV will be generated as y by default in the .config file. We could set config of CRYPTO_ECHAINIV to y explicitly to generated the correct .config file, but having the change of "ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV" cherry picked into the 4.4 stable kernel looks more like the right solution. The commit id for that change is 32b6170ca59ccf07d0e394561e54b2cd9726038c, it's already in 4.9 and 4.14 kernels, like here: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net… https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net… Could you please help to check if we could have 32b6170ca59ccf07d0e394561e54b2cd9726038c in the 4.4 stable kernel? The patch is here: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/patch/net?… Thanks in advance! -- Best Regards, Yongqin Liu

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