March 2018 - Linux-stable-mirror

[Linux-stable-mirror] [PATCH] drbd: fix discard_zeroes_if_aligned regression

by Eric Wheeler

From: Eric Wheeler <git(a)linux.ewheeler.net> According to drbd.conf documentation, "To not break established and expected behaviour, and suddenly cause fstrim on thin-provisioned LVs to run out-of-space instead of freeing up space, the default value is yes." This behavior regressed in the REQ_OP_WRITE_ZEROES refactor near 45c21793 drbd: implement REQ_OP_WRITE_ZEROES 0dbed96 drbd: make intelligent use of blkdev_issue_zeroout which caused dm-thin backed DRBD volumes to zero blocks and run out of space instead of passing discard to the backing device as defined by the discard_zeroes_if_aligned option. A helper function could reduce code duplication. Signed-off-by: Eric Wheeler <drbd(a)linux.ewheeler.net> Cc: <stable(a)vger.kernel.org> # 4.14 --- drivers/block/drbd/drbd_receiver.c | 22 ++++++++++++++++++++-- drivers/block/drbd/drbd_req.c | 23 +++++++++++++++++++++-- 2 files changed, 41 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 62a902f..58f0e43 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1507,9 +1507,27 @@ void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backin static void drbd_issue_peer_discard(struct drbd_device *device, struct drbd_peer_request *peer_req) { struct block_device *bdev = device->ldev->backing_bdev; + struct disk_conf *dc; + bool discard_zeroes_if_aligned, zeroout; - if (blkdev_issue_zeroout(bdev, peer_req->i.sector, peer_req->i.size >> 9, - GFP_NOIO, 0)) + rcu_read_lock(); + dc = rcu_dereference(device->ldev->disk_conf); + discard_zeroes_if_aligned = dc->discard_zeroes_if_aligned; + rcu_read_unlock(); + + /* Use zeroout unless discard_zeroes_if_aligned is set. + * If blkdev_issue_discard fails, then retry with blkdev_issue_zeroout. + * See also drbd_process_discard_req() in drbd_req.c. + */ + zeroout = true; + if (discard_zeroes_if_aligned && + blkdev_issue_discard(bdev, peer_req->i.sector, + peer_req->i.size >> 9, GFP_NOIO, 0) == 0) + zeroout = false; + + if (zeroout && + blkdev_issue_zeroout(bdev, peer_req->i.sector, + peer_req->i.size >> 9, GFP_NOIO, 0) != 0) peer_req->flags |= EE_WAS_ERROR; drbd_endio_write_sec_final(peer_req); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index de8566e..070b5e7 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1158,9 +1158,28 @@ static int drbd_process_write_request(struct drbd_request *req) static void drbd_process_discard_req(struct drbd_request *req) { struct block_device *bdev = req->device->ldev->backing_bdev; + struct drbd_device *device = req->device; + struct disk_conf *dc; + bool discard_zeroes_if_aligned, zeroout; - if (blkdev_issue_zeroout(bdev, req->i.sector, req->i.size >> 9, - GFP_NOIO, 0)) + rcu_read_lock(); + dc = rcu_dereference(device->ldev->disk_conf); + discard_zeroes_if_aligned = dc->discard_zeroes_if_aligned; + rcu_read_unlock(); + + /* Use zeroout unless discard_zeroes_if_aligned is set. + * If blkdev_issue_discard fails, then retry with blkdev_issue_zeroout. + * See also drbd_issue_peer_discard() in drbd_receiver.c. + */ + zeroout = true; + if (discard_zeroes_if_aligned && + blkdev_issue_discard(bdev, req->i.sector, req->i.size >> 9, + GFP_NOIO, 0) == 0) + zeroout = false; + + if (zeroout && + blkdev_issue_zeroout(bdev, req->i.sector, req->i.size >> 9, + GFP_NOIO, 0) != 0) req->private_bio->bi_status = BLK_STS_IOERR; bio_endio(req->private_bio); } -- 1.8.3.1

5 years, 7 months

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[Linux-stable-mirror] [PATCH v2] usb: dwc3: core: Fix ULPI PHYs and prevent phy_get/ulpi_init during suspend/resume

by Roger Quadros

In order for ULPI PHYs to work, dwc3_phy_setup() and dwc3_ulpi_init() must be doene before dwc3_core_get_phy(). commit 541768b08a40 ("usb: dwc3: core: Call dwc3_core_get_phy() before initializing phys") broke this. The other issue is that dwc3_core_get_phy() and dwc3_ulpi_init() should be called only once during the life cycle of the driver. However, as dwc3_core_init() is called during system suspend/resume it will result in multiple calls to dwc3_core_get_phy() and dwc3_ulpi_init() which is wrong. Fix this by moving dwc3_ulpi_init() out of dwc3_phy_setup() into dwc3_core_ulpi_init(). Use a flag 'ulpi_ready' to ensure that dwc3_core_ulpi_init() is called only once from dwc3_core_init(). Use another flag 'phys_ready' to call dwc3_core_get_phy() only once from dwc3_core_init(). Fixes: 541768b08a40 ("usb: dwc3: core: Call dwc3_core_get_phy() before initializing phys") Fixes: f54edb539c11 ("usb: dwc3: core: initialize ULPI before trying to get the PHY") Cc: linux-stable <stable(a)vger.kernel.org> # >= v4.13 Signed-off-by: Roger Quadros <rogerq(a)ti.com> --- Changelog: v2: - don't break ULPI case. Also take into consideration suspend/resume for ULPI case. drivers/usb/dwc3/core.c | 47 ++++++++++++++++++++++++++++++++++++----------- drivers/usb/dwc3/core.h | 5 +++++ 2 files changed, 41 insertions(+), 11 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 0783250..84382f6 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -482,6 +482,22 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) parms->hwparams8 = dwc3_readl(dwc->regs, DWC3_GHWPARAMS8); } +static int dwc3_core_ulpi_init(struct dwc3 *dwc) +{ + int intf; + int ret = 0; + + intf = DWC3_GHWPARAMS3_HSPHY_IFC(dwc->hwparams.hwparams3); + + if (intf == DWC3_GHWPARAMS3_HSPHY_IFC_ULPI || + (intf == DWC3_GHWPARAMS3_HSPHY_IFC_UTMI_ULPI && + dwc->hsphy_interface && + !strncmp(dwc->hsphy_interface, "ulpi", 4))) + ret = dwc3_ulpi_init(dwc); + + return ret; +} + /** * dwc3_phy_setup - Configure USB PHY Interface of DWC3 Core * @dwc: Pointer to our controller context structure @@ -493,7 +509,6 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) static int dwc3_phy_setup(struct dwc3 *dwc) { u32 reg; - int ret; reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); @@ -564,9 +579,6 @@ static int dwc3_phy_setup(struct dwc3 *dwc) } /* FALLTHROUGH */ case DWC3_GHWPARAMS3_HSPHY_IFC_ULPI: - ret = dwc3_ulpi_init(dwc); - if (ret) - return ret; /* FALLTHROUGH */ default: break; @@ -723,6 +735,7 @@ static void dwc3_core_setup_global_control(struct dwc3 *dwc) } static int dwc3_core_get_phy(struct dwc3 *dwc); +static int dwc3_core_ulpi_init(struct dwc3 *dwc); /** * dwc3_core_init - Low-level initialization of DWC3 Core @@ -754,17 +767,27 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc->maximum_speed = USB_SPEED_HIGH; } - ret = dwc3_core_get_phy(dwc); + ret = dwc3_phy_setup(dwc); if (ret) goto err0; - ret = dwc3_core_soft_reset(dwc); - if (ret) - goto err0; + if (!dwc->ulpi_ready) { + ret = dwc3_core_ulpi_init(dwc); + if (ret) + goto err0; + dwc->ulpi_ready = true; + } - ret = dwc3_phy_setup(dwc); + if (!dwc->phys_ready) { + ret = dwc3_core_get_phy(dwc); + if (ret) + goto err0a; + dwc->phys_ready = true; + } + + ret = dwc3_core_soft_reset(dwc); if (ret) - goto err0; + goto err0a; dwc3_core_setup_global_control(dwc); dwc3_core_num_eps(dwc); @@ -837,6 +860,9 @@ static int dwc3_core_init(struct dwc3 *dwc) phy_exit(dwc->usb2_generic_phy); phy_exit(dwc->usb3_generic_phy); +err0a: + dwc3_ulpi_exit(dwc); + err0: return ret; } @@ -1229,7 +1255,6 @@ static int dwc3_probe(struct platform_device *pdev) err3: dwc3_free_event_buffers(dwc); - dwc3_ulpi_exit(dwc); err2: pm_runtime_allow(&pdev->dev); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 4a4a4c9..6b202e3 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -795,7 +795,9 @@ struct dwc3_scratchpad_array { * @usb3_phy: pointer to USB3 PHY * @usb2_generic_phy: pointer to USB2 PHY * @usb3_generic_phy: pointer to USB3 PHY + * @phys_ready: flag to indicate that PHYs are ready * @ulpi: pointer to ulpi interface + * @ulpi_ready: flag to indicate that ULPI is initialized * @isoch_delay: wValue from Set Isochronous Delay request; * @u2sel: parameter from Set SEL request. * @u2pel: parameter from Set SEL request. @@ -893,7 +895,10 @@ struct dwc3 { struct phy *usb2_generic_phy; struct phy *usb3_generic_phy; + bool phys_ready; + struct ulpi *ulpi; + bool ulpi_ready; void __iomem *regs; size_t regs_size; -- cheers, -roger Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

6 years

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Re: [Linux-stable-mirror] stable/linux-3.16.y build: 178 builds: 1 failed, 177 passed, 2 errors, 57 warnings (v3.16.52)

by Arnd Bergmann

On Tue, Jan 2, 2018 at 12:48 PM, kernelci.org bot <bot(a)kernelci.org> wrote: Hi Ben, almost a clean build with kernelci! > Errors summary: > 1 drivers/scsi/mpt2sas/mpt2sas_base.c:3550:1: internal compiler error: in extract_constrain_insn, at recog.c:2190 > 1 drivers/scsi/mpt2sas/mpt2sas_base.c:3550:1: error: insn does not satisfy its constraints: See earlier discussion https://www.spinics.net/lists/stable/msg195996.html > Warnings summary: > 54 include/linux/stddef.h:8:14: warning: 'return' with a value, in function returning void This comes from an incorrect backport of commit 49e67dd17649 ("of: fdt: add missing allocation-failure check") It's harmless, and stable/linux-3.18.y has the correct version: --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -380,6 +380,6 @@ static void __unflatten_device_tree(void *blob, /* Allocate memory for the expanded device tree */ mem = dt_alloc(size + 4, __alignof__(struct device_node)); if (!mem) - return NULL; + return; memset(mem, 0, size); > 2 ipc/sem.c:377:6: warning: '___p1' may be used uninitialized in this function [-Wmaybe-uninitialized] This code was last touched in 3.16 by the backport of commit 5864a2fd3088 ("ipc/sem.c: fix complex_count vs. simple op race") The warning is in "smp_load_acquire(&sma->complex_mode))", and I suspect that commit 27d7be1801a4 ("ipc/sem.c: avoid using spin_unlock_wait()") avoided the warning upstream by removing the smp_mb() before it. The code is way too complex for a fly-by analysis, so I'm adding Manfred to Cc here. It may be worth comparing the full list of backports that went into ipc/sem.c in 3.16.y with those in 3.18.y and 4.1.y that don't have the warning. Here is what I see in the git history: $ git log --oneline v3.16..stable/linux-3.16.y ipc/sem.c accb9f16adba ipc/sem.c: fix complex_count vs. simple op race 5b11c133308b ipc: remove use of seq_printf return value 08397b1a5cd4 sysv, ipc: fix security-layer leaking 35cfc2b3a9da ipc/sem.c: fully initialize sem_array before making it visible 69a9a86b645f ipc/sem.c: update/correct memory barriers 30f995ba77ca ipc/sem.c: change memory barrier in sem_lock() to smp_rmb() 76ce4fe19d6b ipc,sem: fix use after free on IPC_RMID after a task using same semaphore set exits $ git log --oneline v3.16..stable/linux-3.18.y ipc/sem.c 7dd90826dfba sysv, ipc: fix security-layer leaking ff12efa03da1 ipc/sem.c: update/correct memory barriers 38b50c47c25e ipc,sem: fix use after free on IPC_RMID after a task using same semaphore set exits e8577d1f0329 ipc/sem.c: fully initialize sem_array before making it visible $ git log --oneline v3.16..stable/linux-4.1.y ipc/sem.c e2b438fdfa4d sysv, ipc: fix security-layer leaking b6805da60f01 ipc/sem.c: update/correct memory barriers 7be83cf01024 ipc,sem: fix use after free on IPC_RMID after a task using same semaphore set exits 7f032d6ef615 ipc: remove use of seq_printf return value 52644c9ab3fa ipc,sem: use current->state helpers 2e094abfd1f2 ipc/sem.c: change memory barrier in sem_lock() to smp_rmb() e8577d1f0329 ipc/sem.c: fully initialize sem_array before making it visible $ git log --oneline v3.16..stable/linux-4.4.y ipc/sem.c f6031d95320d ipc/sem.c: fix complex_count vs. simple op race 62659f0b9ed7 sysv, ipc: fix security-layer leaking 3ed1f8a99d70 ipc/sem.c: update/correct memory barriers a97955844807 ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem() 602b8593d2b4 ipc,sem: fix use after free on IPC_RMID after a task using same semaphore set exits 55b7ae50167e ipc: rename ipc_obtain_object 7f032d6ef615 ipc: remove use of seq_printf return value 52644c9ab3fa ipc,sem: use current->state helpers 2e094abfd1f2 ipc/sem.c: change memory barrier in sem_lock() to smp_rmb() e8577d1f0329 ipc/sem.c: fully initialize sem_array before making it visible $ git log --oneline v3.16..stable/linux-4.9.y ipc/sem.c 2a1613a586de ipc/sem.c: add cond_resched in exit_sme 5864a2fd3088 ipc/sem.c: fix complex_count vs. simple op race 9b24fef9f041 sysv, ipc: fix security-layer leaking be3e78449803 locking/spinlock: Update spin_unlock_wait() users 33ac279677dc locking/barriers: Introduce smp_acquire__after_ctrl_dep() a5f4db877177 ipc/sem: make semctl setting sempid consistent 1d5cfdb07628 tree wide: use kvfree() than conditional kfree()/vfree() 3ed1f8a99d70 ipc/sem.c: update/correct memory barriers a97955844807 ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem() 602b8593d2b4 ipc,sem: fix use after free on IPC_RMID after a task using same semaphore set exits 55b7ae50167e ipc: rename ipc_obtain_object 7f032d6ef615 ipc: remove use of seq_printf return value 52644c9ab3fa ipc,sem: use current->state helpers 2e094abfd1f2 ipc/sem.c: change memory barrier in sem_lock() to smp_rmb() e8577d1f0329 ipc/sem.c: fully initialize sem_array before making it visible > 1 arch/arm/kernel/head-nommu.S:167: Warning: Use of r13 as a source register is deprecated when r15 is the destination register. Fixed by backporting: 970d96f9a81b ("ARM: 8383/1: nommu: avoid deprecated source register on mov") Arnd

6 years, 1 month

3
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Re: [linux-stable-rc:linux-3.16.y 2872/3488] head64.c:undefined reference to `__gcov_exit'

by Arnd Bergmann

On Fri, Feb 16, 2018 at 7:21 PM, kbuild test robot <fengguang.wu(a)intel.com> wrote: > Hi Andrey, > > It's probably a bug fix that unveils the link errors. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-3.16.y > head: 0b9f4cdd4d75131d8886b919bbf6e0c98906d36e > commit: 3cb0dc19883f0c69225311d4f76aa8128d3681a4 [2872/3488] module: fix types of device tables aliases > config: x86_64-allmodconfig (attached as .config) > compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 > reproduce: > git checkout 3cb0dc19883f0c69225311d4f76aa8128d3681a4 > # save the attached .config to linux build tree > make ARCH=x86_64 > > All errors (new ones prefixed by >>): > > arch/x86/kernel/head64.o: In function `_GLOBAL__sub_D_00100_1_early_pmd_flags': >>> head64.c:(.text.exit+0x5): undefined reference to `__gcov_exit' > arch/x86/kernel/head.o: In function `_GLOBAL__sub_D_00100_1_reserve_ebda_region': > head.c:(.text.exit+0x5): undefined reference to `__gcov_exit' > init/built-in.o: In function `_GLOBAL__sub_D_00100_1___ksymtab_system_state': > main.c:(.text.exit+0x5): undefined reference to `__gcov_exit' > init/built-in.o: In function `_GLOBAL__sub_D_00100_1_root_mountflags': > do_mounts.c:(.text.exit+0x10): undefined reference to `__gcov_exit' > init/built-in.o: In function `_GLOBAL__sub_D_00100_1_initrd_load': > do_mounts_initrd.c:(.text.exit+0x1b): undefined reference to `__gcov_exit' > init/built-in.o:initramfs.c:(.text.exit+0x26): more undefined references to `__gcov_exit' follow I think this is a result of using a too new compiler with the old 3.16 kernel. In order to build with gcc-7.3, you need to backport 05384213436a ("gcov: support GCC 7.1") It's already part of stable-3.18 and later, but not 3.2 and 3.16. Arnd

6 years, 1 month

2
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[PATCH 3.16] staging: usbip stub_rx fix static checker warning on unnecessary checks

by Shuah Khan

Upstream commit 10c901209306 ("usbip: stub_rx: fix static checker warning on unnecessary checks") Back-port fix for static checker warning on unnecessary checks smatch warnings: drivers/staging/usbip/stub_rx.c:360 get_pipe() warn: impossible condition '(pdu->u.cmd_submit.transfer_buffer_length > ((~0 >> 1))) => (s32min-s32max > s32max)' drivers/staging/usbip/stub_rx.c:501 stub_recv_cmd_submit() warn: always true condition '(pdu->u.cmd_submit.transfer_buffer_length <= ((~0 >> 1))) => (s32min-s32max <= s32max)' Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com> Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> --- drivers/staging/usbip/stub_rx.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/staging/usbip/stub_rx.c b/drivers/staging/usbip/stub_rx.c index 35f59747122a..d8544ab9577b 100644 --- a/drivers/staging/usbip/stub_rx.c +++ b/drivers/staging/usbip/stub_rx.c @@ -356,14 +356,6 @@ static int get_pipe(struct stub_device *sdev, struct usbip_header *pdu) epd = &ep->desc; - /* validate transfer_buffer_length */ - if (pdu->u.cmd_submit.transfer_buffer_length > INT_MAX) { - dev_err(&sdev->udev->dev, - "CMD_SUBMIT: -EMSGSIZE transfer_buffer_length %d\n", - pdu->u.cmd_submit.transfer_buffer_length); - return -1; - } - if (usb_endpoint_xfer_control(epd)) { if (dir == USBIP_DIR_OUT) return usb_sndctrlpipe(udev, epnum); @@ -497,8 +489,7 @@ static void stub_recv_cmd_submit(struct stub_device *sdev, } /* allocate urb transfer buffer, if needed */ - if (pdu->u.cmd_submit.transfer_buffer_length > 0 && - pdu->u.cmd_submit.transfer_buffer_length <= INT_MAX) { + if (pdu->u.cmd_submit.transfer_buffer_length > 0) { priv->urb->transfer_buffer = kzalloc(pdu->u.cmd_submit.transfer_buffer_length, GFP_KERNEL); -- 2.14.1

6 years, 1 month

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Patch to consider for stable 3.18, 4.4 and 4.9

by Tomasz Kramkowski

In September last year, Ben Hutchings submitted commit [9547837bdccb] for 3.16.48-rc1 and I informed him that it would be useless without [3f3752705dbd] (and that maybe [c3883fe06488] would be useful as well). Ben dropped the patch but suggested I email this list with the information of the other two patches but I never quite got around to it. Now I see Sasha Levin is submitting [3f3752705dbd] and [c3883fe06488] for 4.9, 4.4 and 3.18 it would now make sense to include [9547837bdccb]. This patch fixes a minor problem where a certain USB adapter for Sega Genesis controllers appears as one input device when it has two ports for two controllers. I imagine some users of emulator distributions might use stable kernels and might benefit from this fix. I'm actually not entirely sure that patch is something suitable for stable but since it was already submitted once then I don't think it hurts to bring it up again (despite it breaking stable-kernel-rules as far as I understand it). Commits mentioned: [9547837bdccb]: HID: usbhid: add quirk for innomedia INNEX GENESIS/ATARI adapter [3f3752705dbd]: HID: reject input outside logical range only if null state is set [c3883fe06488]: HID: clamp input to logical range if no null state If the patch [9547837bdccb] is not relevant then feel free to ignore this email. Thanks, -- Tomasz Kramkowski

6 years, 1 month

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[Linux-stable-mirror] [PATCH 4.4 000/105] 4.4.106-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.106 release. There are 105 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 Sun Dec 17 09:22:39 UTC 2017. Anything received after that time might be too late. The whole patch series can be found in one patch at: kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.4.106-rc1.gz 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 4.4.106-rc1 Vincent Pelletier <plr.vincent(a)gmail.com> usb: gadget: ffs: Forbid usb_ep_alloc_request from sleeping Marc Zyngier <marc.zyngier(a)arm.com> arm: KVM: Fix VTTBR_BADDR_MASK BUG_ON off-by-one Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Revert "x86/mm/pat: Ensure cpa->pfn only contains page frame numbers" Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Revert "x86/efi: Hoist page table switching code into efi_call_virt()" Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Revert "x86/efi: Build our own page table structures" Eric Dumazet <edumazet(a)google.com> net/packet: fix a race in packet_bind() and packet_notifier() Mike Maloney <maloney(a)google.com> packet: fix crash in fanout_demux_rollover() Hangbin Liu <liuhangbin(a)gmail.com> sit: update frag_off info Håkon Bugge <Haakon.Bugge(a)oracle.com> rds: Fix NULL pointer dereference in __rds_rdma_map Jon Maloy <jon.maloy(a)ericsson.com> tipc: fix memory leak in tipc_accept_from_sock() Al Viro <viro(a)zeniv.linux.org.uk> more bio_map_user_iov() leak fixes Heiko Carstens <heiko.carstens(a)de.ibm.com> s390: always save and restore all registers on context switch Masamitsu Yamazaki <m-yamazaki(a)ah.jp.nec.com> ipmi: Stop timers before cleaning up the module Paul Moore <paul(a)paul-moore.com> audit: ensure that 'audit=1' actually enables audit for PID 1 Keefe Liu <liuqifa(a)huawei.com> ipvlan: fix ipv6 outbound device David Howells <dhowells(a)redhat.com> afs: Connect up the CB.ProbeUuid Majd Dibbiny <majd(a)mellanox.com> IB/mlx5: Assign send CQ and recv CQ of UMR QP Mark Bloch <markb(a)mellanox.com> IB/mlx4: Increase maximal message size under UD QP Herbert Xu <herbert(a)gondor.apana.org.au> xfrm: Copy policy family in clone_policy Jason Baron <jbaron(a)akamai.com> jump_label: Invoke jump_label_test() via early_initcall() Arvind Yadav <arvind.yadav.cs(a)gmail.com> atm: horizon: Fix irq release error Xin Long <lucien.xin(a)gmail.com> sctp: use the right sk after waking up from wait_buf sleep Xin Long <lucien.xin(a)gmail.com> sctp: do not free asoc when it is already dead in sctp_sendmsg Pavel Tatashin <pasha.tatashin(a)oracle.com> sparc64/mm: set fields in deferred pages Ming Lei <ming.lei(a)redhat.com> block: wake up all tasks blocked in get_request() Chuck Lever <chuck.lever(a)oracle.com> sunrpc: Fix rpc_task_begin trace point Trond Myklebust <trond.myklebust(a)primarydata.com> NFS: Fix a typo in nfs_rename() Randy Dunlap <rdunlap(a)infradead.org> dynamic-debug-howto: fix optional/omitted ending line number to be LARGE instead of 0 Stephen Bates <sbates(a)raithlin.com> lib/genalloc.c: make the avail variable an atomic_long_t Xin Long <lucien.xin(a)gmail.com> route: update fnhe_expires for redirect when the fnhe exists Xin Long <lucien.xin(a)gmail.com> route: also update fnhe_genid when updating a route cache Ben Hutchings <ben.hutchings(a)codethink.co.uk> mac80211_hwsim: Fix memory leak in hwsim_new_radio_nl() Masahiro Yamada <yamada.masahiro(a)socionext.com> kbuild: pkg: use --transform option to prefix paths in tar Jérémy Lefaure <jeremy.lefaure(a)lse.epita.fr> EDAC, i5000, i5400: Fix definition of NRECMEMB register Jérémy Lefaure <jeremy.lefaure(a)lse.epita.fr> EDAC, i5000, i5400: Fix use of MTR_DRAM_WIDTH macro Alexey Kardashevskiy <aik(a)ozlabs.ru> powerpc/powernv/ioda2: Gracefully fail if too many TCE levels requested Jim Qu <Jim.Qu(a)amd.com> drm/amd/amdgpu: fix console deadlock if late init failed Jan Kara <jack(a)suse.cz> axonram: Fix gendisk handling Florian Westphal <fw(a)strlen.de> netfilter: don't track fragmented packets Johannes Thumshirn <jthumshirn(a)suse.de> zram: set physical queue limits to avoid array out of bounds accesses Chris Brandt <chris.brandt(a)renesas.com> i2c: riic: fix restart condition Krzysztof Kozlowski <krzk(a)kernel.org> crypto: s5p-sss - Fix completing crypto request in IRQ handler WANG Cong <xiyou.wangcong(a)gmail.com> ipv6: reorder icmpv6_init() and ip6_mr_init() Michal Schmidt <mschmidt(a)redhat.com> bnx2x: do not rollback VF MAC/VLAN filters we did not configure Michal Schmidt <mschmidt(a)redhat.com> bnx2x: fix possible overrun of VFPF multicast addresses array Michal Schmidt <mschmidt(a)redhat.com> bnx2x: prevent crash when accessing PTP with interface down Blomme, Maarten <Maarten.Blomme(a)flir.com> spi_ks8995: fix "BUG: key accdaa28 not in .data!" Mark Rutland <mark.rutland(a)arm.com> arm64: KVM: Survive unknown traps from guests Mark Rutland <mark.rutland(a)arm.com> arm: KVM: Survive unknown traps from guests Wanpeng Li <wanpeng.li(a)hotmail.com> KVM: nVMX: reset nested_run_pending if the vCPU is going to be reset Franck Demathieu <fdemathieu(a)gmail.com> irqchip/crossbar: Fix incorrect type of register size James Smart <jsmart2021(a)gmail.com> scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters Tejun Heo <tj(a)kernel.org> workqueue: trigger WARN if queue_delayed_work() is called with NULL @wq Tejun Heo <tj(a)kernel.org> libata: drop WARN from protocol error in ata_sff_qc_issue() Jim Mattson <jmattson(a)google.com> kvm: nVMX: VMCLEAR should not cause the vCPU to shut down Christophe JAILLET <christophe.jaillet(a)wanadoo.fr> USB: gadgetfs: Fix a potential memory leak in 'dev_config()' John Keeping <john(a)metanate.com> usb: gadget: configs: plug memory leak Daniel Drake <drake(a)endlessm.com> HID: chicony: Add support for another ASUS Zen AiO keyboard Phil Reid <preid(a)electromag.com.au> gpio: altera: Use handle_level_irq when configured as a level_high Guenter Roeck <linux(a)roeck-us.net> ARM: OMAP2+: Release device node after it is no longer needed. Guenter Roeck <linux(a)roeck-us.net> ARM: OMAP2+: Fix device node reference counts David Daney <david.daney(a)cavium.com> module: set __jump_table alignment to 8 Sachin Sant <sachinp(a)linux.vnet.ibm.com> selftest/powerpc: Fix false failures for skipped tests Thomas Gleixner <tglx(a)linutronix.de> x86/hpet: Prevent might sleep splat on resume Ladislav Michl <ladis(a)linux-mips.org> ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure Steffen Klassert <steffen.klassert(a)secunet.com> vti6: Don't report path MTU below IPV6_MIN_MTU. Sasha Levin <alexander.levin(a)verizon.com> Revert "s390/kbuild: enable modversions for symbols exported from asm" Sasha Levin <alexander.levin(a)verizon.com> Revert "spi: SPI_FSL_DSPI should depend on HAS_DMA" Sasha Levin <alexander.levin(a)verizon.com> Revert "drm/armada: Fix compile fail" Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> mm: drop unused pmdp_huge_get_and_clear_notify() Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> thp: fix MADV_DONTNEED vs. numa balancing race Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> thp: reduce indentation level in change_huge_pmd() Stephen Hemminger <stephen(a)networkplumber.org> scsi: storvsc: Workaround for virtual DVD SCSI version Russell King <rmk+kernel(a)armlinux.org.uk> ARM: avoid faulting on qemu Russell King <rmk+kernel(a)armlinux.org.uk> ARM: BUG if jumping to usermode address in kernel mode Dave Martin <Dave.Martin(a)arm.com> arm64: fpsimd: Prevent registers leaking from dead tasks Andrew Honig <ahonig(a)google.com> KVM: VMX: remove I/O port 0x80 bypass on Intel hosts Kristina Martsenko <kristina.martsenko(a)arm.com> arm64: KVM: fix VTTBR_BADDR_MASK BUG_ON off-by-one Laurent Caumont <lcaumont2(a)gmail.com> media: dvb: i2c transfers over usb cannot be done from stack Marek Szyprowski <m.szyprowski(a)samsung.com> drm/exynos: gem: Drop NONCONTIG flag for buffers allocated without IOMMU Dave Gordon <david.s.gordon(a)intel.com> drm: extra printk() wrapper macros Daniel Thompson <daniel.thompson(a)linaro.org> kdb: Fix handling of kallsyms_symbol_next() return value Heiko Carstens <heiko.carstens(a)de.ibm.com> s390: fix compat system call table Robin Murphy <robin.murphy(a)arm.com> iommu/vt-d: Fix scatterlist offset handling Jaejoong Kim <climbbb.kim(a)gmail.com> ALSA: usb-audio: Add check return value for usb_string() Jaejoong Kim <climbbb.kim(a)gmail.com> ALSA: usb-audio: Fix out-of-bound error Takashi Iwai <tiwai(a)suse.de> ALSA: seq: Remove spurious WARN_ON() at timer check Robb Glasser <rglasser(a)google.com> ALSA: pcm: prevent UAF in snd_pcm_info Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> x86/PCI: Make broadcom_postcore_init() check acpi_disabled Eric Biggers <ebiggers(a)google.com> X.509: reject invalid BIT STRING for subjectPublicKey Eric Biggers <ebiggers(a)google.com> ASN.1: check for error from ASN1_OP_END__ACT actions Eric Biggers <ebiggers(a)google.com> ASN.1: fix out-of-bounds read when parsing indefinite length item Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> efi: Move some sysfs files to be read-only by root Huacai Chen <chenhc(a)lemote.com> scsi: libsas: align sata_device's rps_resp on a cacheline William Breathitt Gray <vilhelm.gray(a)gmail.com> isa: Prevent NULL dereference in isa_bus driver callbacks Paul Meyer <Paul.Meyer(a)microsoft.com> hv: kvp: Avoid reading past allocated blocks from KVP file weiping zhang <zwp10758(a)gmail.com> virtio: release virtio index when fail to device_register Martin Kelly <mkelly(a)xevo.com> can: usb_8dev: cancel urb on -EPIPE and -EPROTO Martin Kelly <mkelly(a)xevo.com> can: esd_usb2: cancel urb on -EPIPE and -EPROTO Martin Kelly <mkelly(a)xevo.com> can: ems_usb: cancel urb on -EPIPE and -EPROTO Martin Kelly <mkelly(a)xevo.com> can: kvaser_usb: cancel urb on -EPIPE and -EPROTO Jimmy Assarsson <jimmyassarsson(a)gmail.com> can: kvaser_usb: ratelimit errors if incomplete messages are received Jimmy Assarsson <jimmyassarsson(a)gmail.com> can: kvaser_usb: Fix comparison bug in kvaser_usb_read_bulk_callback() Jimmy Assarsson <jimmyassarsson(a)gmail.com> can: kvaser_usb: free buf in error paths Oliver Stäbler <oliver.staebler(a)bytesatwork.ch> can: ti_hecc: Fix napi poll return value for repoll ------------- Diffstat: Makefile | 4 +- arch/arm/include/asm/assembler.h | 18 +++ arch/arm/include/asm/kvm_arm.h | 4 +- arch/arm/kernel/entry-header.S | 6 + arch/arm/kvm/handle_exit.c | 19 +-- arch/arm/mach-omap2/gpmc-onenand.c | 10 +- arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 25 ++-- arch/arm64/include/asm/kvm_arm.h | 3 +- arch/arm64/kernel/process.c | 9 ++ arch/arm64/kvm/handle_exit.c | 19 +-- arch/powerpc/platforms/powernv/pci-ioda.c | 3 + arch/powerpc/sysdev/axonram.c | 5 +- arch/s390/include/asm/asm-prototypes.h | 8 -- arch/s390/include/asm/switch_to.h | 19 ++- arch/s390/kernel/syscalls.S | 6 +- arch/sparc/mm/init_64.c | 9 +- arch/x86/include/asm/efi.h | 26 ---- arch/x86/kernel/hpet.c | 2 +- arch/x86/kvm/vmx.c | 31 ++--- arch/x86/mm/pageattr.c | 17 ++- arch/x86/pci/broadcom_bus.c | 2 +- arch/x86/platform/efi/efi.c | 39 +++--- arch/x86/platform/efi/efi_32.c | 5 - arch/x86/platform/efi/efi_64.c | 137 ++++++---------------- arch/x86/platform/efi/efi_stub_64.S | 43 +++++++ block/bio.c | 14 ++- block/blk-core.c | 4 +- crypto/asymmetric_keys/x509_cert_parser.c | 2 + drivers/ata/libata-sff.c | 1 - drivers/atm/horizon.c | 2 +- drivers/base/isa.c | 10 +- drivers/block/zram/zram_drv.c | 2 + drivers/char/ipmi/ipmi_si_intf.c | 44 +++---- drivers/crypto/s5p-sss.c | 5 +- drivers/edac/i5000_edac.c | 8 +- drivers/edac/i5400_edac.c | 9 +- drivers/firmware/efi/efi.c | 3 +- drivers/firmware/efi/esrt.c | 15 +-- drivers/firmware/efi/runtime-map.c | 10 +- drivers/gpio/gpio-altera.c | 26 ++-- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 +- drivers/gpu/drm/armada/Makefile | 2 - drivers/gpu/drm/exynos/exynos_drm_gem.c | 9 ++ drivers/hid/Kconfig | 4 +- drivers/hid/hid-chicony.c | 1 + drivers/hid/hid-core.c | 1 + drivers/hid/hid-ids.h | 1 + drivers/i2c/busses/i2c-riic.c | 6 +- drivers/infiniband/hw/mlx4/qp.c | 2 +- drivers/infiniband/hw/mlx5/main.c | 2 + drivers/iommu/intel-iommu.c | 8 +- drivers/irqchip/irq-crossbar.c | 8 +- drivers/media/usb/dvb-usb/dibusb-common.c | 16 ++- drivers/memory/omap-gpmc.c | 4 +- drivers/net/can/ti_hecc.c | 3 + drivers/net/can/usb/ems_usb.c | 2 + drivers/net/can/usb/esd_usb2.c | 2 + drivers/net/can/usb/kvaser_usb.c | 13 +- drivers/net/can/usb/usb_8dev.c | 2 + drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 20 +++- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 8 +- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | 1 + drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 23 ++-- drivers/net/ipvlan/ipvlan_core.c | 2 +- drivers/net/phy/spi_ks8995.c | 1 + drivers/net/wireless/mac80211_hwsim.c | 5 +- drivers/scsi/lpfc/lpfc_els.c | 14 ++- drivers/scsi/storvsc_drv.c | 27 +++-- drivers/spi/Kconfig | 1 - drivers/usb/gadget/configfs.c | 1 + drivers/usb/gadget/function/f_fs.c | 2 +- drivers/usb/gadget/legacy/inode.c | 4 +- drivers/virtio/virtio.c | 2 + fs/afs/cmservice.c | 3 + fs/nfs/dir.c | 2 +- include/drm/drmP.h | 26 +++- include/linux/genalloc.h | 3 +- include/linux/mmu_notifier.h | 13 -- include/linux/omap-gpmc.h | 5 +- include/linux/sysfs.h | 6 + include/scsi/libsas.h | 2 +- kernel/audit.c | 10 +- kernel/debug/kdb/kdb_io.c | 2 +- kernel/jump_label.c | 2 +- kernel/workqueue.c | 1 + lib/asn1_decoder.c | 49 ++++---- lib/dynamic_debug.c | 4 + lib/genalloc.c | 10 +- mm/huge_memory.c | 82 +++++++++---- net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 4 + net/ipv4/netfilter/nf_nat_l3proto_ipv4.c | 5 - net/ipv4/route.c | 14 ++- net/ipv6/af_inet6.c | 10 +- net/ipv6/ip6_vti.c | 8 +- net/ipv6/sit.c | 1 + net/packet/af_packet.c | 37 +++--- net/packet/internal.h | 1 - net/rds/rdma.c | 2 +- net/sctp/socket.c | 38 ++++-- net/sunrpc/sched.c | 3 +- net/tipc/server.c | 1 + net/xfrm/xfrm_policy.c | 1 + scripts/module-common.lds | 2 + scripts/package/Makefile | 5 +- sound/core/pcm.c | 2 + sound/core/seq/seq_timer.c | 2 +- sound/usb/mixer.c | 13 +- tools/hv/hv_kvp_daemon.c | 70 +++-------- tools/testing/selftests/powerpc/harness.c | 6 +- 109 files changed, 701 insertions(+), 570 deletions(-)

6 years, 3 months

9
123
0 0

[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

6 years, 4 months

3
5
0 0

FAILED: patch "[PATCH] ovl: hash non-dir by lower inode for fsnotify" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-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 764baba80168ad3adafb521d2ab483ccbc49e344 Mon Sep 17 00:00:00 2001 From: Amir Goldstein <amir73il(a)gmail.com> Date: Sun, 4 Feb 2018 15:35:09 +0200 Subject: [PATCH] ovl: hash non-dir by lower inode for fsnotify Commit 31747eda41ef ("ovl: hash directory inodes for fsnotify") fixed an issue of inotify watch on directory that stops getting events after dropping dentry caches. A similar issue exists for non-dir non-upper files, for example: $ mkdir -p lower upper work merged $ touch lower/foo $ mount -t overlay -o lowerdir=lower,workdir=work,upperdir=upper none merged $ inotifywait merged/foo & $ echo 2 > /proc/sys/vm/drop_caches $ cat merged/foo inotifywait doesn't get the OPEN event, because ovl_lookup() called from 'cat' allocates a new overlay inode and does not reuse the watched inode. Fix this by hashing non-dir overlay inodes by lower real inode in the following cases that were not hashed before this change: - A non-upper overlay mount - A lower non-hardlink when index=off A helper ovl_hash_bylower() was added to put all the logic and documentation about which real inode an overlay inode is hashed by into one place. The issue dates back to initial version of overlayfs, but this patch depends on ovl_inode code that was introduced in kernel v4.13. Cc: <stable(a)vger.kernel.org> #v4.13 Signed-off-by: Amir Goldstein <amir73il(a)gmail.com> Signed-off-by: Miklos Szeredi <mszeredi(a)redhat.com> diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c index fcd97b783fa1..3b1bd469accd 100644 --- a/fs/overlayfs/inode.c +++ b/fs/overlayfs/inode.c @@ -669,38 +669,59 @@ struct inode *ovl_lookup_inode(struct super_block *sb, struct dentry *real, return inode; } +/* + * Does overlay inode need to be hashed by lower inode? + */ +static bool ovl_hash_bylower(struct super_block *sb, struct dentry *upper, + struct dentry *lower, struct dentry *index) +{ + struct ovl_fs *ofs = sb->s_fs_info; + + /* No, if pure upper */ + if (!lower) + return false; + + /* Yes, if already indexed */ + if (index) + return true; + + /* Yes, if won't be copied up */ + if (!ofs->upper_mnt) + return true; + + /* No, if lower hardlink is or will be broken on copy up */ + if ((upper || !ovl_indexdir(sb)) && + !d_is_dir(lower) && d_inode(lower)->i_nlink > 1) + return false; + + /* No, if non-indexed upper with NFS export */ + if (sb->s_export_op && upper) + return false; + + /* Otherwise, hash by lower inode for fsnotify */ + return true; +} + struct inode *ovl_get_inode(struct super_block *sb, struct dentry *upperdentry, struct dentry *lowerdentry, struct dentry *index, unsigned int numlower) { - struct ovl_fs *ofs = sb->s_fs_info; struct inode *realinode = upperdentry ? d_inode(upperdentry) : NULL; struct inode *inode; - /* Already indexed or could be indexed on copy up? */ - bool indexed = (index || (ovl_indexdir(sb) && !upperdentry)); - struct dentry *origin = indexed ? lowerdentry : NULL; + bool bylower = ovl_hash_bylower(sb, upperdentry, lowerdentry, index); bool is_dir; - if (WARN_ON(upperdentry && indexed && !lowerdentry)) - return ERR_PTR(-EIO); - if (!realinode) realinode = d_inode(lowerdentry); /* - * Copy up origin (lower) may exist for non-indexed non-dir upper, but - * we must not use lower as hash key in that case. - * Hash non-dir that is or could be indexed by origin inode. - * Hash dir that is or could be merged by origin inode. - * Hash pure upper and non-indexed non-dir by upper inode. - * Hash non-indexed dir by upper inode for NFS export. + * Copy up origin (lower) may exist for non-indexed upper, but we must + * not use lower as hash key if this is a broken hardlink. */ is_dir = S_ISDIR(realinode->i_mode); - if (is_dir && (indexed || !sb->s_export_op || !ofs->upper_mnt)) - origin = lowerdentry; - - if (upperdentry || origin) { - struct inode *key = d_inode(origin ?: upperdentry); + if (upperdentry || bylower) { + struct inode *key = d_inode(bylower ? lowerdentry : + upperdentry); unsigned int nlink = is_dir ? 1 : realinode->i_nlink; inode = iget5_locked(sb, (unsigned long) key, @@ -728,6 +749,7 @@ struct inode *ovl_get_inode(struct super_block *sb, struct dentry *upperdentry, nlink = ovl_get_nlink(lowerdentry, upperdentry, nlink); set_nlink(inode, nlink); } else { + /* Lower hardlink that will be broken on copy up */ inode = new_inode(sb); if (!inode) goto out_nomem;

6 years, 5 months

5
16
0 0

[PATCHES] Networking

by David Miller

Please queue up the following networking bug fixes for v4.14 and v4.15 -stable, respecetively. Thank you!

6 years, 5 months

6
7
0 0

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Linux-stable-mirror March 2018