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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Nikolay Borisov <nborisov@suse.com>,
	Qu Wenruo <wqu@suse.com>, David Sterba <dsterba@suse.com>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.2 030/131] btrfs: qgroup: Dont hold qgroup_ioctl_lock in btrfs_qgroup_inherit()
Date: Mon,  5 Aug 2019 15:01:57 +0200
Message-ID: <20190805124953.451859024@linuxfoundation.org> (raw)
In-Reply-To: <20190805124951.453337465@linuxfoundation.org>

[ Upstream commit e88439debd0a7f969b3ddba6f147152cd0732676 ]

[BUG]
Lockdep will report the following circular locking dependency:

  WARNING: possible circular locking dependency detected
  5.2.0-rc2-custom #24 Tainted: G           O
  ------------------------------------------------------
  btrfs/8631 is trying to acquire lock:
  000000002536438c (&fs_info->qgroup_ioctl_lock#2){+.+.}, at: btrfs_qgroup_inherit+0x40/0x620 [btrfs]

  but task is already holding lock:
  000000003d52cc23 (&fs_info->tree_log_mutex){+.+.}, at: create_pending_snapshot+0x8b6/0xe60 [btrfs]

  which lock already depends on the new lock.

  the existing dependency chain (in reverse order) is:

  -> #2 (&fs_info->tree_log_mutex){+.+.}:
         __mutex_lock+0x76/0x940
         mutex_lock_nested+0x1b/0x20
         btrfs_commit_transaction+0x475/0xa00 [btrfs]
         btrfs_commit_super+0x71/0x80 [btrfs]
         close_ctree+0x2bd/0x320 [btrfs]
         btrfs_put_super+0x15/0x20 [btrfs]
         generic_shutdown_super+0x72/0x110
         kill_anon_super+0x18/0x30
         btrfs_kill_super+0x16/0xa0 [btrfs]
         deactivate_locked_super+0x3a/0x80
         deactivate_super+0x51/0x60
         cleanup_mnt+0x3f/0x80
         __cleanup_mnt+0x12/0x20
         task_work_run+0x94/0xb0
         exit_to_usermode_loop+0xd8/0xe0
         do_syscall_64+0x210/0x240
         entry_SYSCALL_64_after_hwframe+0x49/0xbe

  -> #1 (&fs_info->reloc_mutex){+.+.}:
         __mutex_lock+0x76/0x940
         mutex_lock_nested+0x1b/0x20
         btrfs_commit_transaction+0x40d/0xa00 [btrfs]
         btrfs_quota_enable+0x2da/0x730 [btrfs]
         btrfs_ioctl+0x2691/0x2b40 [btrfs]
         do_vfs_ioctl+0xa9/0x6d0
         ksys_ioctl+0x67/0x90
         __x64_sys_ioctl+0x1a/0x20
         do_syscall_64+0x65/0x240
         entry_SYSCALL_64_after_hwframe+0x49/0xbe

  -> #0 (&fs_info->qgroup_ioctl_lock#2){+.+.}:
         lock_acquire+0xa7/0x190
         __mutex_lock+0x76/0x940
         mutex_lock_nested+0x1b/0x20
         btrfs_qgroup_inherit+0x40/0x620 [btrfs]
         create_pending_snapshot+0x9d7/0xe60 [btrfs]
         create_pending_snapshots+0x94/0xb0 [btrfs]
         btrfs_commit_transaction+0x415/0xa00 [btrfs]
         btrfs_mksubvol+0x496/0x4e0 [btrfs]
         btrfs_ioctl_snap_create_transid+0x174/0x180 [btrfs]
         btrfs_ioctl_snap_create_v2+0x11c/0x180 [btrfs]
         btrfs_ioctl+0xa90/0x2b40 [btrfs]
         do_vfs_ioctl+0xa9/0x6d0
         ksys_ioctl+0x67/0x90
         __x64_sys_ioctl+0x1a/0x20
         do_syscall_64+0x65/0x240
         entry_SYSCALL_64_after_hwframe+0x49/0xbe

  other info that might help us debug this:

  Chain exists of:
    &fs_info->qgroup_ioctl_lock#2 --> &fs_info->reloc_mutex --> &fs_info->tree_log_mutex

   Possible unsafe locking scenario:

         CPU0                    CPU1
         ----                    ----
    lock(&fs_info->tree_log_mutex);
                                 lock(&fs_info->reloc_mutex);
                                 lock(&fs_info->tree_log_mutex);
    lock(&fs_info->qgroup_ioctl_lock#2);

   *** DEADLOCK ***

  6 locks held by btrfs/8631:
   #0: 00000000ed8f23f6 (sb_writers#12){.+.+}, at: mnt_want_write_file+0x28/0x60
   #1: 000000009fb1597a (&type->i_mutex_dir_key#10/1){+.+.}, at: btrfs_mksubvol+0x70/0x4e0 [btrfs]
   #2: 0000000088c5ad88 (&fs_info->subvol_sem){++++}, at: btrfs_mksubvol+0x128/0x4e0 [btrfs]
   #3: 000000009606fc3e (sb_internal#2){.+.+}, at: start_transaction+0x37a/0x520 [btrfs]
   #4: 00000000f82bbdf5 (&fs_info->reloc_mutex){+.+.}, at: btrfs_commit_transaction+0x40d/0xa00 [btrfs]
   #5: 000000003d52cc23 (&fs_info->tree_log_mutex){+.+.}, at: create_pending_snapshot+0x8b6/0xe60 [btrfs]

[CAUSE]
Due to the delayed subvolume creation, we need to call
btrfs_qgroup_inherit() inside commit transaction code, with a lot of
other mutex hold.
This hell of lock chain can lead to above problem.

[FIX]
On the other hand, we don't really need to hold qgroup_ioctl_lock if
we're in the context of create_pending_snapshot().
As in that context, we're the only one being able to modify qgroup.

All other qgroup functions which needs qgroup_ioctl_lock are either
holding a transaction handle, or will start a new transaction:
  Functions will start a new transaction():
  * btrfs_quota_enable()
  * btrfs_quota_disable()
  Functions hold a transaction handler:
  * btrfs_add_qgroup_relation()
  * btrfs_del_qgroup_relation()
  * btrfs_create_qgroup()
  * btrfs_remove_qgroup()
  * btrfs_limit_qgroup()
  * btrfs_qgroup_inherit() call inside create_subvol()

So we have a higher level protection provided by transaction, thus we
don't need to always hold qgroup_ioctl_lock in btrfs_qgroup_inherit().

Only the btrfs_qgroup_inherit() call in create_subvol() needs to hold
qgroup_ioctl_lock, while the btrfs_qgroup_inherit() call in
create_pending_snapshot() is already protected by transaction.

So the fix is to detect the context by checking
trans->transaction->state.
If we're at TRANS_STATE_COMMIT_DOING, then we're in commit transaction
context and no need to get the mutex.

Reported-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/qgroup.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 3e6ffbbd8b0af..f8a3c1b0a15a8 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -2614,6 +2614,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, u64 srcid,
 	int ret = 0;
 	int i;
 	u64 *i_qgroups;
+	bool committing = false;
 	struct btrfs_fs_info *fs_info = trans->fs_info;
 	struct btrfs_root *quota_root;
 	struct btrfs_qgroup *srcgroup;
@@ -2621,7 +2622,25 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, u64 srcid,
 	u32 level_size = 0;
 	u64 nums;
 
-	mutex_lock(&fs_info->qgroup_ioctl_lock);
+	/*
+	 * There are only two callers of this function.
+	 *
+	 * One in create_subvol() in the ioctl context, which needs to hold
+	 * the qgroup_ioctl_lock.
+	 *
+	 * The other one in create_pending_snapshot() where no other qgroup
+	 * code can modify the fs as they all need to either start a new trans
+	 * or hold a trans handler, thus we don't need to hold
+	 * qgroup_ioctl_lock.
+	 * This would avoid long and complex lock chain and make lockdep happy.
+	 */
+	spin_lock(&fs_info->trans_lock);
+	if (trans->transaction->state == TRANS_STATE_COMMIT_DOING)
+		committing = true;
+	spin_unlock(&fs_info->trans_lock);
+
+	if (!committing)
+		mutex_lock(&fs_info->qgroup_ioctl_lock);
 	if (!test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags))
 		goto out;
 
@@ -2785,7 +2804,8 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, u64 srcid,
 unlock:
 	spin_unlock(&fs_info->qgroup_lock);
 out:
-	mutex_unlock(&fs_info->qgroup_ioctl_lock);
+	if (!committing)
+		mutex_unlock(&fs_info->qgroup_ioctl_lock);
 	return ret;
 }
 
-- 
2.20.1




  parent reply index

Thread overview: 145+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-05 13:01 [PATCH 5.2 000/131] 5.2.7-stable review Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 001/131] ARM: riscpc: fix DMA Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 002/131] ARM: dts: rockchip: Make rk3288-veyron-minnie run at hs200 Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 003/131] ARM: dts: rockchip: Make rk3288-veyron-mickeys emmc work again Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 004/131] clk: meson: mpll: properly handle spread spectrum Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 005/131] ARM: dts: rockchip: Mark that the rk3288 timer might stop in suspend Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 006/131] ftrace: Enable trampoline when rec count returns back to one Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 007/131] arm64: dts: qcom: qcs404-evb: fix l3 min voltage Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 008/131] soc: qcom: rpmpd: fixup rpmpd set performance state Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 009/131] arm64: dts: marvell: mcbin: enlarge PCI memory window Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 010/131] soc: imx: soc-imx8: Correct return value of error handle Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 011/131] dmaengine: tegra-apb: Error out if DMA_PREP_INTERRUPT flag is unset Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 012/131] arm64: dts: rockchip: fix isp iommu clocks and power domain Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 013/131] kernel/module.c: Only return -EEXIST for modules that have finished loading Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 014/131] PCI: OF: Initialize dev->fwnode appropriately Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 015/131] firmware/psci: psci_checker: Park kthreads before stopping them Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 016/131] soc: imx8: Fix potential kernel dump in error path Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 017/131] arm64: qcom: qcs404: Add reset-cells to GCC node Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 018/131] swiotlb: fix phys_addr_t overflow warning Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 019/131] MIPS: lantiq: Fix bitfield masking Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 020/131] dmaengine: rcar-dmac: Reject zero-length slave DMA requests Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 021/131] ARM: exynos: Only build MCPM support if used Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 022/131] clk: tegra210: fix PLLU and PLLU_OUT1 Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 023/131] fs/adfs: super: fix use-after-free bug Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 024/131] clk: sprd: Add check for return value of sprd_clk_regmap_init() Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 025/131] arm64: dts: rockchip: Fix USB3 Type-C on rk3399-sapphire Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 026/131] btrfs: tree-checker: Check if the file extent end overflows Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 027/131] btrfs: fix minimum number of chunk errors for DUP Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 028/131] btrfs: Flush before reflinking any extent to prevent NOCOW write falling back to COW without data reservation Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 029/131] remoteproc: copy parent dma_pfn_offset for vdev Greg Kroah-Hartman
2019-08-05 13:01 ` Greg Kroah-Hartman [this message]
2019-08-05 13:01 ` [PATCH 5.2 031/131] cifs: Fix a race condition with cifs_echo_request Greg Kroah-Hartman
2019-08-05 13:01 ` [PATCH 5.2 032/131] ceph: fix improper use of smp_mb__before_atomic() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 033/131] ceph: fix dir_lease_is_valid() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 034/131] ceph: return -ERANGE if virtual xattr value didnt fit in buffer Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 035/131] virtio-mmio: add error check for platform_get_irq Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 036/131] ACPI: blacklist: fix clang warning for unused DMI table Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 037/131] scsi: zfcp: fix GCC compiler warning emitted with -Wmaybe-uninitialized Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 038/131] selftests/bpf: do not ignore clang failures Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 039/131] drm/amd/display: Expose audio inst from DC to DM Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 040/131] cifs: fix crash in cifs_dfs_do_automount Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 041/131] perf version: Fix segfault due to missing OPT_END() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 042/131] x86: kvm: avoid constant-conversion warning Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 043/131] ACPI: fix false-positive -Wuninitialized warning Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 044/131] KVM: nVMX: Ignore segment base for VMX memory operand when segment not FS or GS Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 045/131] bpf: fix BTF verifier size resolution logic Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 046/131] be2net: Signal that the device cannot transmit during reconfiguration Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 047/131] mm/z3fold: dont try to use buddy slots after free Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 048/131] mm/slab_common.c: work around clang bug #42570 Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 049/131] mm/memcontrol.c: keep local VM counters in sync with the hierarchical ones Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 050/131] mm/z3fold.c: reinitialize zhdr structs after migration Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 051/131] x86/apic: Silence -Wtype-limits compiler warnings Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 052/131] x86: math-emu: Hide clang warnings for 16-bit overflow Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 053/131] mm/cma.c: fail if fixed declaration cant be honored Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 054/131] lib/test_overflow.c: avoid tainting the kernel and fix wrap size Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 055/131] lib/test_string.c: avoid masking memset16/32/64 failures Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 056/131] mm/ioremap: check virtual address alignment while creating huge mappings Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 057/131] coda: add error handling for fget Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 058/131] coda: fix build using bare-metal toolchain Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 059/131] uapi linux/coda_psdev.h: move upc_req definition from uapi to kernel side headers Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 060/131] drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 061/131] ipc/mqueue.c: only perform resource calculation if user valid Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 062/131] nds32: fix asm/syscall.h Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 063/131] device-dax: fix memory and resource leak if hotplug fails Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 064/131] mm/hotplug: make remove_memory() interface usable Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 065/131] stacktrace: Force USER_DS for stack_trace_save_user() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 066/131] crypto: ccp - Fix SEV_VERSION_GREATER_OR_EQUAL Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 067/131] xen/pv: Fix a boot up hang revealed by int3 self test Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 068/131] x86/kvm: Dont call kvm_spurious_fault() from .fixup Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 069/131] x86/paravirt: Fix callee-saved function ELF sizes Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 070/131] x86, boot: Remove multiple copy of static function sanitize_boot_params() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 071/131] bpf: Disable GCC -fgcse optimization for ___bpf_prog_run() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 072/131] drm/nouveau: fix memory leak in nouveau_conn_reset() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 073/131] dma-direct: correct the physical addr in dma_direct_sync_sg_for_cpu/device Greg Kroah-Hartman
2019-08-06 12:41   ` Sasha Levin
2019-08-06 12:57     ` Robin Murphy
2019-08-06 22:04       ` Sasha Levin
2019-08-07  5:44         ` Christoph Hellwig
2019-08-05 13:02 ` [PATCH 5.2 074/131] drm/nouveau/dmem: missing mutex_lock in error path Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 075/131] kconfig: Clear "written" flag to avoid data loss Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 076/131] kbuild: initialize CLANG_FLAGS correctly in the top Makefile Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 077/131] kbuild: modpost: include .*.cmd files only when targets exist Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 078/131] tpm: Fix null pointer dereference on chip register error path Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 079/131] Btrfs: fix incremental send failure after deduplication Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 080/131] Btrfs: fix race leading to fs corruption after transaction abort Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 081/131] dax: Fix missed wakeup in put_unlocked_entry() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 082/131] fgraph: Remove redundant ftrace_graph_notrace_addr() test Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 083/131] mmc: dw_mmc: Fix occasional hang after tuning on eMMC Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 084/131] mmc: meson-mx-sdio: Fix misuse of GENMASK macro Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 085/131] mmc: host: sdhci-sprd: Fix the missing pm_runtime_put_noidle() Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 086/131] mmc: mmc_spi: Enable stable writes Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 087/131] gpiolib: Preserve desc->flags when setting state Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 088/131] gpio: dont WARN() on NULL descs if gpiolib is disabled Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 089/131] gpiolib: fix incorrect IRQ requesting of an active-low lineevent Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 090/131] IB/hfi1: Fix Spectre v1 vulnerability Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 091/131] drm/nouveau: Only release VCPI slots on mode changes Greg Kroah-Hartman
2019-08-05 13:02 ` [PATCH 5.2 092/131] mtd: rawnand: micron: handle on-die "ECC-off" devices correctly Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 093/131] eeprom: at24: make spd world-readable again Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 094/131] i2c: iproc: Fix i2c master read more than 63 bytes Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 095/131] i2c: at91: disable TXRDY interrupt after sending data Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 096/131] i2c: at91: fix clk_offset for sama5d2 Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 097/131] powerpc/kasan: fix early boot failure on PPC32 Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 098/131] selinux: fix memory leak in policydb_init() Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 099/131] ALSA: hda: Fix 1-minute detection delay when i915 module is not available Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 100/131] mm: vmscan: check if mem cgroup is disabled or not before calling memcg slab shrinker Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 101/131] mm: migrate: fix reference check race between __find_get_block() and migration Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 102/131] mm: compaction: avoid 100% CPU usage during compaction when a task is killed Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 103/131] ubsan: build ubsan.c more conservatively Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 104/131] mm/migrate.c: initialize pud_entry in migrate_vma() Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 105/131] loop: Fix mount(2) failure due to race with LOOP_SET_FD Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 106/131] s390/dasd: fix endless loop after read unit address configuration Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 107/131] cgroup: kselftest: relax fs_spec checks Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 108/131] parisc: Add archclean Makefile target Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 109/131] parisc: Strip debug info from kernel before creating compressed vmlinuz Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 110/131] parisc: Fix build of compressed kernel even with debug enabled Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 111/131] drivers/perf: arm_pmu: Fix failure path in PM notifier Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 112/131] arm64: compat: Allow single-byte watchpoints on all addresses Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 113/131] arm64: cpufeature: Fix feature comparison for CTR_EL0.{CWG,ERG} Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 114/131] io_uring: fix KASAN use after free in io_sq_wq_submit_work Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 115/131] clk: mediatek: mt8183: Register 13MHz clock earlier for clocksource Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 116/131] scsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 117/131] nbd: replace kill_bdev() with __invalidate_device() again Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 118/131] xen/swiotlb: fix condition for calling xen_destroy_contiguous_region() Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 119/131] xen/gntdev.c: Replace vm_map_pages() with vm_map_pages_zero() Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 120/131] RDMA/bnxt_re: Honor vlan_id in GID entry comparison Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 121/131] RDMA/devices: Do not deadlock during client removal Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 122/131] IB/mlx5: Fix unreg_umr to ignore the mkey state Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 123/131] IB/mlx5: Use direct mkey destroy command upon UMR unreg failure Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 124/131] IB/mlx5: Move MRs to a kernel PD when freeing them to the MR cache Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 125/131] IB/mlx5: Fix clean_mr() to work in the expected order Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 126/131] IB/mlx5: Fix RSS Toeplitz setup to be aligned with the HW specification Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 127/131] IB/hfi1: Check for error on call to alloc_rsm_map_table Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 128/131] IB/hfi1: Drop all TID RDMA READ RESP packets after r_next_psn Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 129/131] IB/hfi1: Field not zero-ed when allocating TID flow memory Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 130/131] drm/i915/perf: fix ICL perf register offsets Greg Kroah-Hartman
2019-08-05 13:03 ` [PATCH 5.2 131/131] drm/i915/gvt: fix incorrect cache entry for guest page mapping Greg Kroah-Hartman
2019-08-05 18:35 ` [PATCH 5.2 000/131] 5.2.7-stable review kernelci.org bot
2019-08-06  0:51 ` shuah
2019-08-06  5:34   ` Greg Kroah-Hartman
2019-08-06  6:17 ` Naresh Kamboju
2019-08-06 10:55   ` Greg Kroah-Hartman
2019-08-06 15:50 ` Guenter Roeck
2019-08-06 16:01   ` Greg Kroah-Hartman
2019-08-06 18:30 ` Jon Hunter
2019-08-06 18:44   ` Greg Kroah-Hartman

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