September 2018 - Linux-stable-mirror

[PATCH] xen-blkback: Switch to closed state after releasing the backing device

by Valentin Vidic

Switching to closed state earlier can cause the block-drbd script to fail with 'Device is held open by someone': root: /etc/xen/scripts/block-drbd: remove XENBUS_PATH=backend/vbd/6/51712 kernel: [ 2222.278235] block drbd6: State change failed: Device is held open by someone kernel: [ 2222.278304] block drbd6: state = { cs:Connected ro:Primary/Secondary ds:UpToDate/UpToDate r----- } kernel: [ 2222.278340] block drbd6: wanted = { cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate r----- } root: /etc/xen/scripts/block-drbd: Writing backend/vbd/6/51712/hotplug-error /etc/xen/scripts/block-drbd failed; error detected. backend/vbd/6/51712/hotplug-status error to xenstore. root: /etc/xen/scripts/block-drbd: /etc/xen/scripts/block-drbd failed; error detected. Signed-off-by: Valentin Vidic <Valentin.Vidic(a)CARNet.hr> Cc: stable(a)vger.kernel.org --- drivers/block/xen-blkback/xenbus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index a4bc74e72c39..43bddc996709 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -323,6 +323,7 @@ static void xen_blkif_free(struct xen_blkif *blkif) { WARN_ON(xen_blkif_disconnect(blkif)); xen_vbd_free(&blkif->vbd); + xenbus_switch_state(blkif->be->dev, XenbusStateClosed); kfree(blkif->be->mode); kfree(blkif->be); @@ -814,7 +815,6 @@ static void frontend_changed(struct xenbus_device *dev, case XenbusStateClosed: xen_blkif_disconnect(be->blkif); - xenbus_switch_state(dev, XenbusStateClosed); if (xenbus_dev_is_online(dev)) break; /* fall through */ -- 2.18.0

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[PATCH v3.1 2/2] btrfs: Ensure btrfs_trim_fs can trim the whole fs

by Qu Wenruo

[BUG] fstrim on some btrfs only trims the unallocated space, not trimming any space in existing block groups. [CAUSE] Before fstrim_range passed to btrfs_trim_fs(), it get truncated to range [0, super->total_bytes). So later btrfs_trim_fs() will only be able to trim block groups in range [0, super->total_bytes). While for btrfs, any bytenr aligned to sector size is valid, since btrfs use its logical address space, there is nothing limiting the location where we put block groups. For btrfs with routine balance, it's quite easy to relocate all block groups and bytenr of block groups will start beyond super->total_bytes. In that case, btrfs will not trim existing block groups. [FIX] Just remove the truncation in btrfs_ioctl_fitrim(), so btrfs_trim_fs() can get the unmodified range, which is normally set to [0, U64_MAX]. Reported-by: Chris Murphy <lists(a)colorremedies.com> Fixes: f4c697e6406d ("btrfs: return EINVAL if start > total_bytes in fitrim ioctl") Cc: <stable(a)vger.kernel.org> # v4.0+ Signed-off-by: Qu Wenruo <wqu(a)suse.com> --- fs/btrfs/extent-tree.c | 10 +--------- fs/btrfs/ioctl.c | 11 +++++++---- 2 files changed, 8 insertions(+), 13 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 2cc449190578..c6a9cca8ddca 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -10851,21 +10851,13 @@ int btrfs_trim_fs(struct btrfs_fs_info *fs_info, struct fstrim_range *range) u64 start; u64 end; u64 trimmed = 0; - u64 total_bytes = btrfs_super_total_bytes(fs_info->super_copy); u64 bg_failed = 0; u64 dev_failed = 0; int bg_ret = 0; int dev_ret = 0; int ret = 0; - /* - * try to trim all FS space, our block group may start from non-zero. - */ - if (range->len == total_bytes) - cache = btrfs_lookup_first_block_group(fs_info, range->start); - else - cache = btrfs_lookup_block_group(fs_info, range->start); - + cache = btrfs_lookup_first_block_group(fs_info, range->start); for (; cache; cache = next_block_group(fs_info, cache)) { if (cache->key.objectid >= (range->start + range->len)) { btrfs_put_block_group(cache); diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 63600dc2ac4c..8165a4bfa579 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -491,7 +491,6 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) struct fstrim_range range; u64 minlen = ULLONG_MAX; u64 num_devices = 0; - u64 total_bytes = btrfs_super_total_bytes(fs_info->super_copy); int ret; if (!capable(CAP_SYS_ADMIN)) @@ -515,11 +514,15 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) return -EOPNOTSUPP; if (copy_from_user(&range, arg, sizeof(range))) return -EFAULT; - if (range.start > total_bytes || - range.len < fs_info->sb->s_blocksize) + + /* + * NOTE: Don't truncate the range using super->total_bytes. + * Bytenr of btrfs block group is in btrfs logical address space, + * which can be any sector size aligned bytenr in [0, U64_MAX]. + */ + if (range.len < fs_info->sb->s_blocksize) return -EINVAL; - range.len = min(range.len, total_bytes - range.start); range.minlen = max(range.minlen, minlen); ret = btrfs_trim_fs(fs_info, &range); if (ret < 0) -- 2.18.0

7 years

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[PATCHv4 0/7] tty: Hold write ldisc sem in tty_reopen()

by Dmitry Safonov

Hi all, Three fixes that worth to have in the @stable, as they were hit by different people, including Arista on v4.9 stable. And for linux-next - adding lockdep asserts for line discipline changing code, verifying that write ldisc sem will be held forthwith. The last patch is an optional and probably, timeout can be dropped for read_lock(). I'll do it if everyone agrees. (Or as per discussion with Peter in v3, just convert ldisc to a regular rwsem). Thanks, Dima Changes since v3: - Added tested-by Mark Rutland (thanks!) - Dropped patch with smp_wmb() - wrong idea - lockdep_assert_held() should be actually lockdep_assert_held_exclusive() - Described why tty_ldisc_open() can be called without ldisc_sem held for pty slave end (o_tty). - Added Peter's patch for dropping self-made lockdep annotations - Fix for a reader(s) of ldisc semaphore waiting for an active reader(s) Changes since v2: - Added reviewed-by tags - Hopefully, fixed reported by 0-day issue. - Added optional fix for wait_readers decrement Changes since v1: - Added tested-by/reported-by tags - Dropped 3/4 (locking tty pair for lockdep sake), Because of that - not adding lockdep_assert_held() in tty_ldisc_open() - Added 4/4 cleanup to inc tty->count only on success of tty_ldisc_reinit() - lock ldisc without (5*HZ) timeout in tty_reopen() v1 link: lkml.kernel.org/r/<20180829022353.23568-1-dima(a)arista.com> v2 link: lkml.kernel.org/r/<20180903165257.29227-1-dima(a)arista.com> v3 link: lkml.kernel.org/r/<20180911014821.26286-1-dima(a)arista.com> Cc: Daniel Axtens <dja(a)axtens.net> Cc: Dmitry Vyukov <dvyukov(a)google.com> Cc: Mark Rutland <mark.rutland(a)arm.com> Cc: Michael Neuling <mikey(a)neuling.org> Cc: Mikulas Patocka <mpatocka(a)redhat.com> Cc: Nathan March <nathan(a)gt.net> Cc: Pasi Kärkkäinen <pasik(a)iki.fi> Cc: Peter Hurley <peter(a)hurleysoftware.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: "Rong, Chen" <rong.a.chen(a)intel.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work(a)gmail.com> Cc: Tan Xiaojun <tanxiaojun(a)huawei.com> Cc: Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> (please, ignore if I Cc'ed you mistakenly) Dmitry Safonov (6): tty: Drop tty->count on tty_reopen() failure tty: Hold tty_ldisc_lock() during tty_reopen() tty/ldsem: Wake up readers after timed out down_write() tty: Simplify tty->count math in tty_reopen() tty/ldsem: Add lockdep asserts for ldisc_sem tty/ldsem: Decrement wait_readers on timeouted down_read() Peter Zijlstra (1): tty/ldsem: Convert to regular lockdep annotations drivers/tty/tty_io.c | 12 ++++++---- drivers/tty/tty_ldisc.c | 9 +++++++ drivers/tty/tty_ldsem.c | 62 ++++++++++++++++++++----------------------------- 3 files changed, 42 insertions(+), 41 deletions(-) -- 2.13.6

7 years

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[PATCH 4.9 00/78] 4.9.127-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.127 release. There are 78 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 Sat Sep 15 13:17:41 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-4.9.127-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 4.9.127-rc1 Suzuki K Poulose <suzuki.poulose(a)arm.com> arm64: Handle mismatched cache type Suzuki K Poulose <suzuki.poulose(a)arm.com> arm64: Fix mismatched cache line size detection Ethan Lien <ethanlien(a)synology.com> btrfs: use correct compare function of dirty_metadata_bytes Gustavo A. R. Silva <gustavo(a)embeddedor.com> ASoC: wm8994: Fix missing break in switch Martin Schwidefsky <schwidefsky(a)de.ibm.com> s390/lib: use expoline for all bcr instructions Tomas Winkler <tomas.winkler(a)intel.com> mei: me: allow runtime pm for platform with D0i3 Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_tbf: fix two null pointer dereferences on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_netem: avoid null pointer deref on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_hhf: fix null pointer dereference on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_multiq: fix double free on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_htb: fix crash on init failure Chas Williams <chas3(a)att.com> Fixes: Commit 2aa6d036b716 ("mm: numa: avoid waiting on freed migrated pages") Govindarajulu Varadarajan <gvaradar(a)cisco.com> enic: do not call enic_change_mtu in enic_probe Fabio Estevam <fabio.estevam(a)nxp.com> Revert "ARM: imx_v6_v7_defconfig: Select ULPI support" Tyler Hicks <tyhicks(a)canonical.com> irda: Only insert new objects into the global database via setsockopt Tyler Hicks <tyhicks(a)canonical.com> irda: Fix memory leak caused by repeated binds of irda socket Randy Dunlap <rdunlap(a)infradead.org> kbuild: make missing $DEPMOD a Warning instead of an Error Juergen Gross <jgross(a)suse.com> x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear Joel Fernandes (Google) <joel(a)joelfernandes.org> debugobjects: Make stack check warning more informative Eric Dumazet <edumazet(a)google.com> tcp: Revert "tcp: tcp_probe: use spin_lock_bh()" Kai-Heng Feng <kai.heng.feng(a)canonical.com> drm/edid: Add 6 bpc quirk for SDC panel in Lenovo B50-80 Marc Zyngier <marc.zyngier(a)arm.com> ARM: rockchip: Force CONFIG_PM on Rockchip systems Marc Zyngier <marc.zyngier(a)arm.com> arm64: rockchip: Force CONFIG_PM on Rockchip systems Qu Wenruo <wqu(a)suse.com> btrfs: Don't remove block group that still has pinned down bytes Qu Wenruo <wqu(a)suse.com> btrfs: relocation: Only remove reloc rb_trees if reloc control has been initialized Misono Tomohiro <misono.tomohiro(a)jp.fujitsu.com> btrfs: replace: Reset on-disk dev stats value after replace Levin Du <djw(a)t-chip.com.cn> clk: rockchip: Add pclk_rkpwm_pmu to PMU critical clocks in rk3399 Mahesh Salgaonkar <mahesh(a)linux.vnet.ibm.com> powerpc/pseries: Avoid using the size greater than RTAS_ERROR_LOG_MAX. Steve French <stfrench(a)microsoft.com> SMB3: Number of requests sent should be displayed for SMB3 not just CIFS Steve French <stfrench(a)microsoft.com> smb3: fix reset of bytes read and written stats YueHaibing <yuehaibing(a)huawei.com> RDS: IB: fix 'passing zero to ERR_PTR()' warning Breno Leitao <leitao(a)debian.org> selftests/powerpc: Kill child processes on SIGINT Ian Abbott <abbotti(a)mev.co.uk> staging: comedi: ni_mio_common: fix subdevice flags for PFI subdevice John Pittman <jpittman(a)redhat.com> dm kcopyd: avoid softlockup in run_complete_job Thomas Petazzoni <thomas.petazzoni(a)bootlin.com> PCI: mvebu: Fix I/O space end address calculation Dan Carpenter <dan.carpenter(a)oracle.com> scsi: aic94xx: fix an error code in aic94xx_init() Hans de Goede <hdegoede(a)redhat.com> ACPI / scan: Initialize status to ACPI_STA_DEFAULT Stefan Haberland <sth(a)linux.ibm.com> s390/dasd: fix panic for failed online processing Stefan Haberland <sth(a)linux.ibm.com> s390/dasd: fix hanging offline processing due to canceled worker Greg Edwards <gedwards(a)ddn.com> block: bvec_nr_vecs() returns value for wrong slab Sandipan Das <sandipan(a)linux.ibm.com> perf probe powerpc: Fix trace event post-processing Dan Carpenter <dan.carpenter(a)oracle.com> powerpc: Fix size calculation using resource_size() Jean-Philippe Brucker <jean-philippe.brucker(a)arm.com> net/9p: fix error path of p9_virtio_probe Tomas Bortoli <tomasbortoli(a)gmail.com> net/9p/trans_fd.c: fix race by holding the lock Jonas Gorski <jonas.gorski(a)gmail.com> irqchip/bcm7038-l1: Hide cpu offline callback when building for !SMP Gal Pressman <pressmangal(a)gmail.com> RDMA/hns: Fix usage of bitmap allocation functions return values Aleh Filipovich <aleh(a)vaolix.com> platform/x86: asus-nb-wmi: Add keymap entry for lid flip action on UX360 Guenter Roeck <linux(a)roeck-us.net> mfd: sm501: Set coherent_dma_mask when creating subdevices Tan Hu <tan.hu(a)zte.com.cn> ipvs: fix race between ip_vs_conn_new() and ip_vs_del_dest() Philipp Rudo <prudo(a)linux.ibm.com> s390/kdump: Fix memleak in nt_vmcoreinfo Randy Dunlap <rdunlap(a)infradead.org> platform/x86: intel_punit_ipc: fix build errors Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> fs/dcache.c: fix kmemcheck splat at take_dentry_name_snapshot() Andrey Ryabinin <aryabinin(a)virtuozzo.com> mm/fadvise.c: fix signed overflow UBSAN complaint Suzuki K Poulose <suzuki.poulose(a)arm.com> virtio: pci-legacy: Validate queue pfn Randy Dunlap <rdunlap(a)infradead.org> scripts: modpost: check memory allocation results OGAWA Hirofumi <hirofumi(a)mail.parknet.co.jp> fat: validate ->i_start before using Ernesto A. Fernández <ernesto.mnd.fernandez(a)gmail.com> hfsplus: fix NULL dereference in hfsplus_lookup() Arnd Bergmann <arnd(a)arndb.de> reiserfs: change j_timestamp type to time64_t Jann Horn <jannh(a)google.com> fork: don't copy inconsistent signal handler state to child Laura Abbott <labbott(a)redhat.com> sunrpc: Don't use stack buffer with scatterlist Ernesto A. Fernández <ernesto.mnd.fernandez(a)gmail.com> hfs: prevent crash on exit from failed search Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> hfsplus: don't return 0 when fill_super() failed Ronnie Sahlberg <lsahlber(a)redhat.com> cifs: check if SMB2 PDU size has been padded and suppress the warning Vlad Buslov <vladbu(a)mellanox.com> net: sched: action_ife: take reference to meta module Cong Wang <xiyou.wangcong(a)gmail.com> act_ife: fix a potential deadlock Cong Wang <xiyou.wangcong(a)gmail.com> act_ife: move tcfa_lock down to where necessary Stephen Hemminger <stephen(a)networkplumber.org> hv_netvsc: ignore devices that are not PCI Jason Wang <jasowang(a)redhat.com> vhost: correctly check the iova range when waking virtqueue Xin Long <lucien.xin(a)gmail.com> sctp: hold transport before accessing its asoc in sctp_transport_get_next Alexey Kodanev <alexey.kodanev(a)oracle.com> vti6: remove !skb->ignore_df check from vti6_xmit() Florian Westphal <fw(a)strlen.de> tcp: do not restart timewait timer on rst reception Anthony Wong <anthony.wong(a)ubuntu.com> r8169: add support for NCube 8168 network card Manish Chopra <manish.chopra(a)cavium.com> qlge: Fix netdev features configuration. Kees Cook <keescook(a)chromium.org> net: sched: Fix memory exposure from short TCA_U32_SEL Doug Berger <opendmb(a)gmail.com> net: bcmgenet: use MAC link status for fixed phy Eric Dumazet <edumazet(a)google.com> ipv4: tcp: send zero IPID for RST and ACK sent in SYN-RECV and TIME-WAIT state Cong Wang <xiyou.wangcong(a)gmail.com> act_ife: fix a potential use-after-free Michal Hocko <mhocko(a)suse.cz> x86/speculation/l1tf: Fix up pte->pfn conversion for PAE ------------- Diffstat: Makefile | 4 +- arch/arm/configs/imx_v6_v7_defconfig | 2 - arch/arm/mach-rockchip/Kconfig | 1 + arch/arm64/Kconfig.platforms | 1 + arch/arm64/include/asm/cachetype.h | 5 ++ arch/arm64/include/asm/cpucaps.h | 3 +- arch/arm64/kernel/cpu_errata.c | 24 ++++++-- arch/arm64/kernel/cpufeature.c | 4 +- arch/powerpc/platforms/pseries/ras.c | 2 +- arch/powerpc/sysdev/mpic_msgr.c | 2 +- arch/s390/kernel/crash_dump.c | 17 ++++-- arch/s390/lib/mem.S | 9 ++- arch/x86/include/asm/pgtable-3level.h | 7 +-- arch/x86/include/asm/pgtable.h | 2 +- block/bio.c | 2 +- drivers/acpi/scan.c | 5 +- drivers/clk/rockchip/clk-rk3399.c | 1 + drivers/gpu/drm/drm_edid.c | 3 + drivers/infiniband/hw/hns/hns_roce_pd.c | 2 +- drivers/infiniband/hw/hns/hns_roce_qp.c | 5 +- drivers/irqchip/irq-bcm7038-l1.c | 4 ++ drivers/md/dm-kcopyd.c | 2 + drivers/mfd/sm501.c | 1 + drivers/misc/mei/pci-me.c | 5 +- drivers/net/ethernet/broadcom/genet/bcmgenet.h | 3 + drivers/net/ethernet/broadcom/genet/bcmmii.c | 10 +++- drivers/net/ethernet/cisco/enic/enic_main.c | 2 +- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 23 +++----- drivers/net/ethernet/realtek/r8169.c | 1 + drivers/net/hyperv/netvsc_drv.c | 5 ++ drivers/pci/host/pci-mvebu.c | 2 +- drivers/platform/x86/asus-nb-wmi.c | 1 + drivers/platform/x86/intel_punit_ipc.c | 1 + drivers/s390/block/dasd_eckd.c | 10 +++- drivers/scsi/aic94xx/aic94xx_init.c | 4 +- drivers/staging/comedi/drivers/ni_mio_common.c | 3 +- drivers/vhost/vhost.c | 2 +- drivers/virtio/virtio_pci_legacy.c | 14 ++++- fs/btrfs/dev-replace.c | 6 ++ fs/btrfs/disk-io.c | 10 ++-- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/relocation.c | 23 ++++---- fs/cifs/cifs_debug.c | 8 +++ fs/cifs/smb2misc.c | 7 +++ fs/cifs/smb2pdu.c | 2 +- fs/dcache.c | 3 +- fs/fat/cache.c | 19 ++++--- fs/fat/fat.h | 5 ++ fs/fat/fatent.c | 6 +- fs/hfs/brec.c | 7 ++- fs/hfsplus/dir.c | 4 +- fs/hfsplus/super.c | 4 +- fs/reiserfs/reiserfs.h | 2 +- include/linux/pci_ids.h | 2 + kernel/fork.c | 2 + lib/debugobjects.c | 7 ++- mm/fadvise.c | 8 ++- mm/huge_memory.c | 2 +- net/9p/trans_fd.c | 10 ++-- net/9p/trans_virtio.c | 3 +- net/ipv4/tcp_ipv4.c | 6 ++ net/ipv4/tcp_minisocks.c | 3 +- net/ipv4/tcp_probe.c | 4 +- net/ipv6/ip6_vti.c | 2 +- net/irda/af_irda.c | 13 ++++- net/netfilter/ipvs/ip_vs_core.c | 15 +++-- net/rds/ib_frmr.c | 1 + net/sched/act_ife.c | 79 +++++++++++++++----------- net/sched/cls_u32.c | 8 ++- net/sched/sch_hhf.c | 3 + net/sched/sch_htb.c | 5 +- net/sched/sch_multiq.c | 9 +-- net/sched/sch_netem.c | 4 +- net/sched/sch_tbf.c | 5 +- net/sctp/proc.c | 4 -- net/sctp/socket.c | 22 ++++--- net/sunrpc/auth_gss/gss_krb5_crypto.c | 12 +++- scripts/depmod.sh | 4 +- scripts/mod/modpost.c | 8 +-- sound/soc/codecs/wm8994.c | 1 + tools/perf/arch/powerpc/util/sym-handling.c | 4 +- tools/testing/selftests/powerpc/harness.c | 18 ++++-- 82 files changed, 376 insertions(+), 190 deletions(-)

7 years

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[PATCH 4.4 00/60] 4.4.156-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.156 release. There are 60 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 Sat Sep 15 13:17:29 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-4.4.156-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 4.4.156-rc1 Ethan Lien <ethanlien(a)synology.com> btrfs: use correct compare function of dirty_metadata_bytes Gustavo A. R. Silva <gustavo(a)embeddedor.com> ASoC: wm8994: Fix missing break in switch Martin Schwidefsky <schwidefsky(a)de.ibm.com> s390/lib: use expoline for all bcr instructions Tomas Winkler <tomas.winkler(a)intel.com> mei: me: allow runtime pm for platform with D0i3 Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_tbf: fix two null pointer dereferences on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_netem: avoid null pointer deref on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_hhf: fix null pointer dereference on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_multiq: fix double free on init failure Nikolay Aleksandrov <nikolay(a)cumulusnetworks.com> sch_htb: fix crash on init failure Miklos Szeredi <mszeredi(a)redhat.com> ovl: proper cleanup of workdir Antonio Murdaca <amurdaca(a)redhat.com> ovl: override creds with the ones from the superblock mounter Miklos Szeredi <mszeredi(a)redhat.com> ovl: rename is_merge to is_lowest Marc Zyngier <marc.zyngier(a)arm.com> irqchip/gic: Make interrupt ID 1020 invalid Marc Zyngier <marc.zyngier(a)arm.com> irqchip/gic-v3: Add missing barrier to 32bit version of gic_read_iar() Shanker Donthineni <shankerd(a)codeaurora.org> irqchip/gicv3-its: Avoid cache flush beyond ITS_BASERn memory size Shanker Donthineni <shankerd(a)codeaurora.org> irqchip/gicv3-its: Fix memory leak in its_free_tables() Marc Zyngier <marc.zyngier(a)arm.com> irqchip/gic-v3-its: Recompute the number of pages on page size change Sudeep Holla <sudeep.holla(a)arm.com> genirq: Delay incrementing interrupt count if it's disabled/pending Chas Williams <chas3(a)att.com> Fixes: Commit cdbf92675fad ("mm: numa: avoid waiting on freed migrated pages") Govindarajulu Varadarajan <gvaradar(a)cisco.com> enic: do not call enic_change_mtu in enic_probe Fabio Estevam <fabio.estevam(a)nxp.com> Revert "ARM: imx_v6_v7_defconfig: Select ULPI support" Tyler Hicks <tyhicks(a)canonical.com> irda: Only insert new objects into the global database via setsockopt Tyler Hicks <tyhicks(a)canonical.com> irda: Fix memory leak caused by repeated binds of irda socket Randy Dunlap <rdunlap(a)infradead.org> kbuild: make missing $DEPMOD a Warning instead of an Error Juergen Gross <jgross(a)suse.com> x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear Joel Fernandes (Google) <joel(a)joelfernandes.org> debugobjects: Make stack check warning more informative Qu Wenruo <wqu(a)suse.com> btrfs: Don't remove block group that still has pinned down bytes Qu Wenruo <wqu(a)suse.com> btrfs: relocation: Only remove reloc rb_trees if reloc control has been initialized Misono Tomohiro <misono.tomohiro(a)jp.fujitsu.com> btrfs: replace: Reset on-disk dev stats value after replace Mahesh Salgaonkar <mahesh(a)linux.vnet.ibm.com> powerpc/pseries: Avoid using the size greater than RTAS_ERROR_LOG_MAX. Steve French <stfrench(a)microsoft.com> SMB3: Number of requests sent should be displayed for SMB3 not just CIFS Steve French <stfrench(a)microsoft.com> smb3: fix reset of bytes read and written stats Breno Leitao <leitao(a)debian.org> selftests/powerpc: Kill child processes on SIGINT Ian Abbott <abbotti(a)mev.co.uk> staging: comedi: ni_mio_common: fix subdevice flags for PFI subdevice John Pittman <jpittman(a)redhat.com> dm kcopyd: avoid softlockup in run_complete_job Thomas Petazzoni <thomas.petazzoni(a)bootlin.com> PCI: mvebu: Fix I/O space end address calculation Dan Carpenter <dan.carpenter(a)oracle.com> scsi: aic94xx: fix an error code in aic94xx_init() Stefan Haberland <sth(a)linux.ibm.com> s390/dasd: fix hanging offline processing due to canceled worker Dan Carpenter <dan.carpenter(a)oracle.com> powerpc: Fix size calculation using resource_size() Jean-Philippe Brucker <jean-philippe.brucker(a)arm.com> net/9p: fix error path of p9_virtio_probe Jonas Gorski <jonas.gorski(a)gmail.com> irqchip/bcm7038-l1: Hide cpu offline callback when building for !SMP Aleh Filipovich <aleh(a)vaolix.com> platform/x86: asus-nb-wmi: Add keymap entry for lid flip action on UX360 Guenter Roeck <linux(a)roeck-us.net> mfd: sm501: Set coherent_dma_mask when creating subdevices Tan Hu <tan.hu(a)zte.com.cn> ipvs: fix race between ip_vs_conn_new() and ip_vs_del_dest() Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> fs/dcache.c: fix kmemcheck splat at take_dentry_name_snapshot() Andrey Ryabinin <aryabinin(a)virtuozzo.com> mm/fadvise.c: fix signed overflow UBSAN complaint Randy Dunlap <rdunlap(a)infradead.org> scripts: modpost: check memory allocation results OGAWA Hirofumi <hirofumi(a)mail.parknet.co.jp> fat: validate ->i_start before using Ernesto A. Fernández <ernesto.mnd.fernandez(a)gmail.com> hfsplus: fix NULL dereference in hfsplus_lookup() Arnd Bergmann <arnd(a)arndb.de> reiserfs: change j_timestamp type to time64_t Jann Horn <jannh(a)google.com> fork: don't copy inconsistent signal handler state to child Ernesto A. Fernández <ernesto.mnd.fernandez(a)gmail.com> hfs: prevent crash on exit from failed search Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> hfsplus: don't return 0 when fill_super() failed Ronnie Sahlberg <lsahlber(a)redhat.com> cifs: check if SMB2 PDU size has been padded and suppress the warning Alexey Kodanev <alexey.kodanev(a)oracle.com> vti6: remove !skb->ignore_df check from vti6_xmit() Florian Westphal <fw(a)strlen.de> tcp: do not restart timewait timer on rst reception Manish Chopra <manish.chopra(a)cavium.com> qlge: Fix netdev features configuration. Doug Berger <opendmb(a)gmail.com> net: bcmgenet: use MAC link status for fixed phy Greg Hackmann <ghackmann(a)android.com> staging: android: ion: fix ION_IOC_{MAP,SHARE} use-after-free Michal Hocko <mhocko(a)suse.cz> x86/speculation/l1tf: Fix up pte->pfn conversion for PAE ------------- Diffstat: Makefile | 4 +- arch/arm/configs/imx_v6_v7_defconfig | 2 - arch/arm/include/asm/arch_gicv3.h | 1 + arch/powerpc/platforms/pseries/ras.c | 2 +- arch/powerpc/sysdev/mpic_msgr.c | 2 +- arch/s390/lib/mem.S | 9 ++- arch/x86/include/asm/pgtable-3level.h | 7 +- arch/x86/include/asm/pgtable.h | 2 +- drivers/irqchip/irq-bcm7038-l1.c | 4 ++ drivers/irqchip/irq-gic-v3-its.c | 34 ++++++---- drivers/irqchip/irq-gic.c | 2 +- drivers/md/dm-kcopyd.c | 2 + drivers/mfd/sm501.c | 1 + drivers/misc/mei/pci-me.c | 5 +- drivers/net/ethernet/broadcom/genet/bcmgenet.h | 3 + drivers/net/ethernet/broadcom/genet/bcmmii.c | 10 ++- drivers/net/ethernet/cisco/enic/enic_main.c | 2 +- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 23 +++---- drivers/pci/host/pci-mvebu.c | 2 +- drivers/platform/x86/asus-nb-wmi.c | 1 + drivers/s390/block/dasd_eckd.c | 7 +- drivers/scsi/aic94xx/aic94xx_init.c | 4 +- drivers/staging/android/ion/ion.c | 60 ++++++++++------- drivers/staging/comedi/drivers/ni_mio_common.c | 3 +- fs/btrfs/dev-replace.c | 6 ++ fs/btrfs/disk-io.c | 10 +-- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/relocation.c | 23 ++++--- fs/cifs/cifs_debug.c | 8 +++ fs/cifs/smb2misc.c | 7 ++ fs/cifs/smb2pdu.c | 2 +- fs/dcache.c | 3 +- fs/fat/cache.c | 19 ++++-- fs/fat/fat.h | 5 ++ fs/fat/fatent.c | 6 +- fs/hfs/brec.c | 7 +- fs/hfsplus/dir.c | 4 +- fs/hfsplus/super.c | 4 +- fs/overlayfs/copy_up.c | 26 +------ fs/overlayfs/dir.c | 67 ++----------------- fs/overlayfs/overlayfs.h | 3 + fs/overlayfs/readdir.c | 93 ++++++++++++++++++++------ fs/overlayfs/super.c | 20 +++++- fs/reiserfs/reiserfs.h | 2 +- kernel/fork.c | 2 + kernel/irq/chip.c | 8 +-- lib/debugobjects.c | 7 +- mm/fadvise.c | 8 ++- mm/huge_memory.c | 2 +- net/9p/trans_virtio.c | 3 +- net/ipv4/tcp_minisocks.c | 3 +- net/ipv6/ip6_vti.c | 2 +- net/irda/af_irda.c | 13 +++- net/netfilter/ipvs/ip_vs_core.c | 15 +++-- net/sched/sch_hhf.c | 3 + net/sched/sch_htb.c | 5 +- net/sched/sch_multiq.c | 9 +-- net/sched/sch_netem.c | 4 +- net/sched/sch_tbf.c | 5 +- scripts/depmod.sh | 4 +- scripts/mod/modpost.c | 8 +-- sound/soc/codecs/wm8994.c | 1 + tools/testing/selftests/powerpc/harness.c | 18 +++-- 63 files changed, 369 insertions(+), 260 deletions(-)

7 years

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FAILED: patch "[PATCH] drm/i915: Increase LSPCON timeout" 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 299c2a904b1e8d5096d4813df6371357d97a6cd1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fredrik=20Sch=C3=B6n?= <fredrikschon(a)gmail.com> Date: Fri, 17 Aug 2018 22:07:28 +0200 Subject: [PATCH] drm/i915: Increase LSPCON timeout MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 100 ms is not enough time for the LSPCON adapter on Intel NUC devices to settle. This causes dropped display modes at boot or screen reconfiguration. Empirical testing can reproduce the error up to a timeout of 190 ms. Basic boot and stress testing at 200 ms has not (yet) failed. Increase timeout to 400 ms to get some margin of error. Changes from v1: The initial suggestion of 1000 ms was lowered due to concerns about delaying valid timeout cases. Update patch metadata. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107503 Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1570392 Fixes: 357c0ae9198a ("drm/i915/lspcon: Wait for expected LSPCON mode to settle") Cc: Shashank Sharma <shashank.sharma(a)intel.com> Cc: Imre Deak <imre.deak(a)intel.com> Cc: Jani Nikula <jani.nikula(a)intel.com> Cc: <stable(a)vger.kernel.org> # v4.11+ Reviewed-by: Rodrigo Vivi <rodrigo.vivi(a)intel.com> Reviewed-by: Shashank Sharma <shashank.sharma(a)intel.com> Signed-off-by: Fredrik Schön <fredrik.schon(a)gmail.com> Signed-off-by: Jani Nikula <jani.nikula(a)intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180817200728.8154-1-fredrik… (cherry picked from commit 59f1c8ab30d6f9042562949f42cbd3f3cf69de94) Signed-off-by: Rodrigo Vivi <rodrigo.vivi(a)intel.com> diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c index 5dae16ccd9f1..3e085c5f2b81 100644 --- a/drivers/gpu/drm/i915/intel_lspcon.c +++ b/drivers/gpu/drm/i915/intel_lspcon.c @@ -74,7 +74,7 @@ static enum drm_lspcon_mode lspcon_wait_mode(struct intel_lspcon *lspcon, DRM_DEBUG_KMS("Waiting for LSPCON mode %s to settle\n", lspcon_mode_name(mode)); - wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, 100); + wait_for((current_mode = lspcon_get_current_mode(lspcon)) == mode, 400); if (current_mode != mode) DRM_ERROR("LSPCON mode hasn't settled\n");

7 years

4
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[PATCH] serial: cpm_uart: return immediately from console poll

by Christophe Leroy

kgdb expects poll function to return immediately and returning NO_POLL_CHAR when no character is available. Fixes: f5316b4aea024 ("kgdb,8250,pl011: Return immediately from console poll") Cc: Jason Wessel <jason.wessel(a)windriver.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy(a)c-s.fr> --- drivers/tty/serial/cpm_uart/cpm_uart_core.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c index cd3f3fc4e0a5..280acc4dfa90 100644 --- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c +++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c @@ -1093,8 +1093,8 @@ static int poll_wait_key(char *obuf, struct uart_cpm_port *pinfo) /* Get the address of the host memory buffer. */ bdp = pinfo->rx_cur; - while (bdp->cbd_sc & BD_SC_EMPTY) - ; + if (bdp->cbd_sc & BD_SC_EMPTY) + return NO_POLL_CHAR; /* If the buffer address is in the CPM DPRAM, don't * convert it. @@ -1129,7 +1129,11 @@ static int cpm_get_poll_char(struct uart_port *port) poll_chars = 0; } if (poll_chars <= 0) { - poll_chars = poll_wait_key(poll_buf, pinfo); + int ret = poll_wait_key(poll_buf, pinfo); + + if (ret == NO_POLL_CHAR) + return ret; + poll_chars = ret; pollp = poll_buf; } poll_chars--; -- 2.13.3

7 years

1
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[PATCH] gpiolib: fix freeing of descriptors on error

by Jim Paris

When the main loop in linehandle_create() encounters an error, it fails to free one of the previously-requested GPIO descriptors. This renders the unfreed GPIO unusable until reboot, and leaves its label pointing to free'd kernel memory. Cc: stable(a)vger.kernel.org Fixes: ab3dbcf78f60 ("gpioib: do not free unrequested descriptors") Signed-off-by: Jim Paris <jim(a)jtan.com> --- drivers/gpio/gpiolib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index e8f8a1999393..a57300c1d649 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -571,7 +571,7 @@ static int linehandle_create(struct gpio_device *gdev, void __user *ip) if (ret) goto out_free_descs; lh->descs[i] = desc; - count = i; + count = i + 1; if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW) set_bit(FLAG_ACTIVE_LOW, &desc->flags); -- 2.18.0

7 years

3
2
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[PATCH] crypto: x86/aegis,morus - Do not require OSXSAVE for SSE2

by Ondrej Mosnacek

It turns out OSXSAVE needs to be checked only for AVX, not for SSE. Without this patch the affected modules refuse to load on CPUs with SSE2 but without AVX support. Fixes: 877ccce7cbe8 ("crypto: x86/aegis,morus - Fix and simplify CPUID checks") Cc: <stable(a)vger.kernel.org> # 4.18 Reported-by: Zdenek Kaspar <zkaspar82(a)gmail.com> Signed-off-by: Ondrej Mosnacek <omosnace(a)redhat.com> --- arch/x86/crypto/aegis128-aesni-glue.c | 1 - arch/x86/crypto/aegis128l-aesni-glue.c | 1 - arch/x86/crypto/aegis256-aesni-glue.c | 1 - arch/x86/crypto/morus1280-sse2-glue.c | 1 - arch/x86/crypto/morus640-sse2-glue.c | 1 - 5 files changed, 5 deletions(-) NOTE: This patch doesn't apply to the current crypto-2.6 tree [1], since it is based on v4.18-rc7, which doesn't contain the commit this patch is fixing. It needs to merge in the v4.18 tag before this patch can be applied. Thanks, Ondrej [1] https://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6.git/ diff --git a/arch/x86/crypto/aegis128-aesni-glue.c b/arch/x86/crypto/aegis128-aesni-glue.c index acd11b3bf639..2a356b948720 100644 --- a/arch/x86/crypto/aegis128-aesni-glue.c +++ b/arch/x86/crypto/aegis128-aesni-glue.c @@ -379,7 +379,6 @@ static int __init crypto_aegis128_aesni_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || !boot_cpu_has(X86_FEATURE_AES) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/aegis128l-aesni-glue.c b/arch/x86/crypto/aegis128l-aesni-glue.c index 2071c3d1ae07..dbe8bb980da1 100644 --- a/arch/x86/crypto/aegis128l-aesni-glue.c +++ b/arch/x86/crypto/aegis128l-aesni-glue.c @@ -379,7 +379,6 @@ static int __init crypto_aegis128l_aesni_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || !boot_cpu_has(X86_FEATURE_AES) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/aegis256-aesni-glue.c b/arch/x86/crypto/aegis256-aesni-glue.c index b5f2a8fd5a71..8bebda2de92f 100644 --- a/arch/x86/crypto/aegis256-aesni-glue.c +++ b/arch/x86/crypto/aegis256-aesni-glue.c @@ -379,7 +379,6 @@ static int __init crypto_aegis256_aesni_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || !boot_cpu_has(X86_FEATURE_AES) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/morus1280-sse2-glue.c b/arch/x86/crypto/morus1280-sse2-glue.c index 95cf857d2cbb..f40244eaf14d 100644 --- a/arch/x86/crypto/morus1280-sse2-glue.c +++ b/arch/x86/crypto/morus1280-sse2-glue.c @@ -40,7 +40,6 @@ MORUS1280_DECLARE_ALGS(sse2, "morus1280-sse2", 350); static int __init crypto_morus1280_sse2_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; diff --git a/arch/x86/crypto/morus640-sse2-glue.c b/arch/x86/crypto/morus640-sse2-glue.c index 615fb7bc9a32..9afaf8f8565a 100644 --- a/arch/x86/crypto/morus640-sse2-glue.c +++ b/arch/x86/crypto/morus640-sse2-glue.c @@ -40,7 +40,6 @@ MORUS640_DECLARE_ALGS(sse2, "morus640-sse2", 400); static int __init crypto_morus640_sse2_module_init(void) { if (!boot_cpu_has(X86_FEATURE_XMM2) || - !boot_cpu_has(X86_FEATURE_OSXSAVE) || !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL)) return -ENODEV; -- 2.17.1

7 years

2
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[PATCH stable 4.4 0/9] fix SegmentSmack in stable branch (CVE-2018-5390)

by Mao Wenan

There are five patches to fix CVE-2018-5390 in latest mainline branch, but only two patches exist in stable 4.4 and 3.18: dc6ae4d tcp: detect malicious patterns in tcp_collapse_ofo_queue() 5fbec48 tcp: avoid collapses in tcp_prune_queue() if possible I have tested with stable 4.4 kernel, and found the cpu usage was very high. So I think only two patches can't fix the CVE-2018-5390. test results: with fix patch： 78.2% ksoftirqd withoutfix patch： 90% ksoftirqd Then I try to imitate 72cd43ba(tcp: free batches of packets in tcp_prune_ofo_queue()) to drop at least 12.5 % of sk_rcvbuf to avoid malicious attacks with simple queue instead of RB tree. The result is not very well. After analysing the codes of stable 4.4, and debuging the system, shows that search of ofo_queue(tcp ofo using a simple queue) cost more cycles. So I try to backport "tcp: use an RB tree for ooo receive queue" using RB tree instead of simple queue, then backport Eric Dumazet 5 fixed patches in mainline, good news is that ksoftirqd is turn to about 20%, which is the same with mainline now. Stable 4.4 have already back port two patches, f4a3313d(tcp: avoid collapses in tcp_prune_queue() if possible) 3d4bf93a(tcp: detect malicious patterns in tcp_collapse_ofo_queue()) If we want to change simple queue to RB tree to finally resolve, we should apply previous patch 9f5afeae(tcp: use an RB tree for ooo receive queue.) firstly, but 9f5afeae have many conflicts with 3d4bf93a and f4a3313d, which are part of patch series from Eric in mainline to fix CVE-2018-5390, so I need revert part of patches in stable 4.4 firstly, then apply 9f5afeae, and reapply five patches from Eric. Eric Dumazet (6): tcp: increment sk_drops for dropped rx packets tcp: free batches of packets in tcp_prune_ofo_queue() tcp: avoid collapses in tcp_prune_queue() if possible tcp: detect malicious patterns in tcp_collapse_ofo_queue() tcp: call tcp_drop() from tcp_data_queue_ofo() tcp: add tcp_ooo_try_coalesce() helper Mao Wenan (2): Revert "tcp: detect malicious patterns in tcp_collapse_ofo_queue()" Revert "tcp: avoid collapses in tcp_prune_queue() if possible" Yaogong Wang (1): tcp: use an RB tree for ooo receive queue include/linux/skbuff.h | 8 + include/linux/tcp.h | 7 +- include/net/sock.h | 7 + include/net/tcp.h | 2 +- net/core/skbuff.c | 19 +++ net/ipv4/tcp.c | 4 +- net/ipv4/tcp_input.c | 412 +++++++++++++++++++++++++++++------------------ net/ipv4/tcp_ipv4.c | 3 +- net/ipv4/tcp_minisocks.c | 1 - net/ipv6/tcp_ipv6.c | 1 + 10 files changed, 294 insertions(+), 170 deletions(-) -- 1.8.3.1

7 years

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Linux-stable-mirror September 2018