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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, Filipe Manana <fdmanana@suse.com>,
	David Sterba <dsterba@suse.com>
Subject: [PATCH 5.9 012/152] btrfs: fix lockdep splat when reading qgroup config on mount
Date: Tue,  1 Dec 2020 09:52:07 +0100	[thread overview]
Message-ID: <20201201084713.460876881@linuxfoundation.org> (raw)
In-Reply-To: <20201201084711.707195422@linuxfoundation.org>

From: Filipe Manana <fdmanana@suse.com>

commit 3d05cad3c357a2b749912914356072b38435edfa upstream.

Lockdep reported the following splat when running test btrfs/190 from
fstests:

  [ 9482.126098] ======================================================
  [ 9482.126184] WARNING: possible circular locking dependency detected
  [ 9482.126281] 5.10.0-rc4-btrfs-next-73 #1 Not tainted
  [ 9482.126365] ------------------------------------------------------
  [ 9482.126456] mount/24187 is trying to acquire lock:
  [ 9482.126534] ffffa0c869a7dac0 (&fs_info->qgroup_rescan_lock){+.+.}-{3:3}, at: qgroup_rescan_init+0x43/0xf0 [btrfs]
  [ 9482.126647]
		 but task is already holding lock:
  [ 9482.126777] ffffa0c892ebd3a0 (btrfs-quota-00){++++}-{3:3}, at: __btrfs_tree_read_lock+0x27/0x120 [btrfs]
  [ 9482.126886]
		 which lock already depends on the new lock.

  [ 9482.127078]
		 the existing dependency chain (in reverse order) is:
  [ 9482.127213]
		 -> #1 (btrfs-quota-00){++++}-{3:3}:
  [ 9482.127366]        lock_acquire+0xd8/0x490
  [ 9482.127436]        down_read_nested+0x45/0x220
  [ 9482.127528]        __btrfs_tree_read_lock+0x27/0x120 [btrfs]
  [ 9482.127613]        btrfs_read_lock_root_node+0x41/0x130 [btrfs]
  [ 9482.127702]        btrfs_search_slot+0x514/0xc30 [btrfs]
  [ 9482.127788]        update_qgroup_status_item+0x72/0x140 [btrfs]
  [ 9482.127877]        btrfs_qgroup_rescan_worker+0xde/0x680 [btrfs]
  [ 9482.127964]        btrfs_work_helper+0xf1/0x600 [btrfs]
  [ 9482.128039]        process_one_work+0x24e/0x5e0
  [ 9482.128110]        worker_thread+0x50/0x3b0
  [ 9482.128181]        kthread+0x153/0x170
  [ 9482.128256]        ret_from_fork+0x22/0x30
  [ 9482.128327]
		 -> #0 (&fs_info->qgroup_rescan_lock){+.+.}-{3:3}:
  [ 9482.128464]        check_prev_add+0x91/0xc60
  [ 9482.128551]        __lock_acquire+0x1740/0x3110
  [ 9482.128623]        lock_acquire+0xd8/0x490
  [ 9482.130029]        __mutex_lock+0xa3/0xb30
  [ 9482.130590]        qgroup_rescan_init+0x43/0xf0 [btrfs]
  [ 9482.131577]        btrfs_read_qgroup_config+0x43a/0x550 [btrfs]
  [ 9482.132175]        open_ctree+0x1228/0x18a0 [btrfs]
  [ 9482.132756]        btrfs_mount_root.cold+0x13/0xed [btrfs]
  [ 9482.133325]        legacy_get_tree+0x30/0x60
  [ 9482.133866]        vfs_get_tree+0x28/0xe0
  [ 9482.134392]        fc_mount+0xe/0x40
  [ 9482.134908]        vfs_kern_mount.part.0+0x71/0x90
  [ 9482.135428]        btrfs_mount+0x13b/0x3e0 [btrfs]
  [ 9482.135942]        legacy_get_tree+0x30/0x60
  [ 9482.136444]        vfs_get_tree+0x28/0xe0
  [ 9482.136949]        path_mount+0x2d7/0xa70
  [ 9482.137438]        do_mount+0x75/0x90
  [ 9482.137923]        __x64_sys_mount+0x8e/0xd0
  [ 9482.138400]        do_syscall_64+0x33/0x80
  [ 9482.138873]        entry_SYSCALL_64_after_hwframe+0x44/0xa9
  [ 9482.139346]
		 other info that might help us debug this:

  [ 9482.140735]  Possible unsafe locking scenario:

  [ 9482.141594]        CPU0                    CPU1
  [ 9482.142011]        ----                    ----
  [ 9482.142411]   lock(btrfs-quota-00);
  [ 9482.142806]                                lock(&fs_info->qgroup_rescan_lock);
  [ 9482.143216]                                lock(btrfs-quota-00);
  [ 9482.143629]   lock(&fs_info->qgroup_rescan_lock);
  [ 9482.144056]
		  *** DEADLOCK ***

  [ 9482.145242] 2 locks held by mount/24187:
  [ 9482.145637]  #0: ffffa0c8411c40e8 (&type->s_umount_key#44/1){+.+.}-{3:3}, at: alloc_super+0xb9/0x400
  [ 9482.146061]  #1: ffffa0c892ebd3a0 (btrfs-quota-00){++++}-{3:3}, at: __btrfs_tree_read_lock+0x27/0x120 [btrfs]
  [ 9482.146509]
		 stack backtrace:
  [ 9482.147350] CPU: 1 PID: 24187 Comm: mount Not tainted 5.10.0-rc4-btrfs-next-73 #1
  [ 9482.147788] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
  [ 9482.148709] Call Trace:
  [ 9482.149169]  dump_stack+0x8d/0xb5
  [ 9482.149628]  check_noncircular+0xff/0x110
  [ 9482.150090]  check_prev_add+0x91/0xc60
  [ 9482.150561]  ? kvm_clock_read+0x14/0x30
  [ 9482.151017]  ? kvm_sched_clock_read+0x5/0x10
  [ 9482.151470]  __lock_acquire+0x1740/0x3110
  [ 9482.151941]  ? __btrfs_tree_read_lock+0x27/0x120 [btrfs]
  [ 9482.152402]  lock_acquire+0xd8/0x490
  [ 9482.152887]  ? qgroup_rescan_init+0x43/0xf0 [btrfs]
  [ 9482.153354]  __mutex_lock+0xa3/0xb30
  [ 9482.153826]  ? qgroup_rescan_init+0x43/0xf0 [btrfs]
  [ 9482.154301]  ? qgroup_rescan_init+0x43/0xf0 [btrfs]
  [ 9482.154768]  ? qgroup_rescan_init+0x43/0xf0 [btrfs]
  [ 9482.155226]  qgroup_rescan_init+0x43/0xf0 [btrfs]
  [ 9482.155690]  btrfs_read_qgroup_config+0x43a/0x550 [btrfs]
  [ 9482.156160]  open_ctree+0x1228/0x18a0 [btrfs]
  [ 9482.156643]  btrfs_mount_root.cold+0x13/0xed [btrfs]
  [ 9482.157108]  ? rcu_read_lock_sched_held+0x5d/0x90
  [ 9482.157567]  ? kfree+0x31f/0x3e0
  [ 9482.158030]  legacy_get_tree+0x30/0x60
  [ 9482.158489]  vfs_get_tree+0x28/0xe0
  [ 9482.158947]  fc_mount+0xe/0x40
  [ 9482.159403]  vfs_kern_mount.part.0+0x71/0x90
  [ 9482.159875]  btrfs_mount+0x13b/0x3e0 [btrfs]
  [ 9482.160335]  ? rcu_read_lock_sched_held+0x5d/0x90
  [ 9482.160805]  ? kfree+0x31f/0x3e0
  [ 9482.161260]  ? legacy_get_tree+0x30/0x60
  [ 9482.161714]  legacy_get_tree+0x30/0x60
  [ 9482.162166]  vfs_get_tree+0x28/0xe0
  [ 9482.162616]  path_mount+0x2d7/0xa70
  [ 9482.163070]  do_mount+0x75/0x90
  [ 9482.163525]  __x64_sys_mount+0x8e/0xd0
  [ 9482.163986]  do_syscall_64+0x33/0x80
  [ 9482.164437]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  [ 9482.164902] RIP: 0033:0x7f51e907caaa

This happens because at btrfs_read_qgroup_config() we can call
qgroup_rescan_init() while holding a read lock on a quota btree leaf,
acquired by the previous call to btrfs_search_slot_for_read(), and
qgroup_rescan_init() acquires the mutex qgroup_rescan_lock.

A qgroup rescan worker does the opposite: it acquires the mutex
qgroup_rescan_lock, at btrfs_qgroup_rescan_worker(), and then tries to
update the qgroup status item in the quota btree through the call to
update_qgroup_status_item(). This inversion of locking order
between the qgroup_rescan_lock mutex and quota btree locks causes the
splat.

Fix this simply by releasing and freeing the path before calling
qgroup_rescan_init() at btrfs_read_qgroup_config().

CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/qgroup.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -497,13 +497,13 @@ next2:
 			break;
 	}
 out:
+	btrfs_free_path(path);
 	fs_info->qgroup_flags |= flags;
 	if (!(fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_ON))
 		clear_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
 	else if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN &&
 		 ret >= 0)
 		ret = qgroup_rescan_init(fs_info, rescan_progress, 0);
-	btrfs_free_path(path);
 
 	if (ret < 0) {
 		ulist_free(fs_info->qgroup_ulist);



  parent reply	other threads:[~2020-12-01  9:10 UTC|newest]

Thread overview: 158+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-01  8:51 [PATCH 5.9 000/152] 5.9.12-rc1 review Greg Kroah-Hartman
2020-12-01  8:51 ` [PATCH 5.9 001/152] io_uring: get an active ref_node from files_data Greg Kroah-Hartman
2020-12-01  8:51 ` [PATCH 5.9 002/152] io_uring: order refnode recycling Greg Kroah-Hartman
2020-12-01  8:51 ` [PATCH 5.9 003/152] spi: bcm-qspi: Fix use-after-free on unbind Greg Kroah-Hartman
2020-12-01  8:51 ` [PATCH 5.9 004/152] spi: bcm2835: " Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 005/152] ipv4: use IS_ENABLED instead of ifdef Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 006/152] IB/hfi1: Ensure correct mm is used at all times Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 007/152] RDMA/i40iw: Address an mmap handler exploit in i40iw Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 008/152] btrfs: fix missing delalloc new bit for new delalloc ranges Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 009/152] btrfs: tree-checker: add missing return after error in root_item Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 010/152] btrfs: tree-checker: add missing returns after data_ref alignment checks Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 011/152] btrfs: dont access possibly stale fs_info data for printing duplicate device Greg Kroah-Hartman
2020-12-01  8:52 ` Greg Kroah-Hartman [this message]
2020-12-01  8:52 ` [PATCH 5.9 013/152] rtc: pcf2127: fix a bug when not specify interrupts property Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 014/152] s390: fix fpu restore in entry.S Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 015/152] mm: fix VM_BUG_ON(PageTail) and BUG_ON(PageWriteback) Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 016/152] smb3: Call cifs reconnect from demultiplex thread Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 017/152] smb3: Avoid Mid pending list corruption Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 018/152] smb3: Handle error case during offload read path Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 019/152] cifs: fix a memleak with modefromsid Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 020/152] powerpc/64s: Fix KVM system reset handling when CONFIG_PPC_PSERIES=y Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 021/152] powerpc/64s/exception: KVM Fix for host DSI being taken in HPT guest MMU context Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 022/152] KVM: PPC: Book3S HV: XIVE: Fix possible oops when accessing ESB page Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 023/152] KVM: arm64: vgic-v3: Drop the reporting of GICR_TYPER.Last for userspace Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 024/152] KVM: x86: handle !lapic_in_kernel case in kvm_cpu_*_extint Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 025/152] KVM: x86: Fix split-irqchip vs interrupt injection window request Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 026/152] iommu/vt-d: Dont read VCCAP register unless it exists Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 027/152] firmware: xilinx: Use hash-table for api feature check Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 028/152] drm/amdgpu: fix SI UVD firmware validate resume fail Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 029/152] io_uring: fix ITER_BVEC check Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 030/152] trace: fix potenial dangerous pointer Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 031/152] arm64: tegra: Correct the UART for Jetson Xavier NX Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 032/152] arm64: tegra: Fix USB_VBUS_EN0 regulator on Jetson TX1 Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 033/152] arm64: pgtable: Fix pte_accessible() Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 034/152] arm64: pgtable: Ensure dirty bit is preserved across pte_wrprotect() Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 035/152] drm/amdgpu: fix a page fault Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 036/152] drm/amdgpu: update golden setting for sienna_cichlid Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 037/152] drm/amd/amdgpu: fix null pointer in runtime pm Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 038/152] drm/amd/display: Avoid HDCP initialization in devices without output Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 039/152] HID: uclogic: Add ID for Trust Flex Design Tablet Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 040/152] HID: ite: Replace ABS_MISC 120/121 events with touchpad on/off keypresses Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 041/152] HID: cypress: Support Varmilo Keyboards media hotkeys Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 042/152] HID: add support for Sega Saturn Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 043/152] Input: i8042 - allow insmod to succeed on devices without an i8042 controller Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 044/152] HID: hid-sensor-hub: Fix issue with devices with no report ID Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 045/152] staging: ralink-gdma: fix kconfig dependency bug for DMA_RALINK Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 046/152] HID: add HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE for Gamevice devices Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 047/152] dmaengine: xilinx_dma: use readl_poll_timeout_atomic variant Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 048/152] x86/xen: dont unbind uninitialized lock_kicker_irq Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 049/152] kunit: fix display of failed expectations for strings Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 050/152] HID: logitech-hidpp: Add HIDPP_CONSUMER_VENDOR_KEYS quirk for the Dinovo Edge Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 051/152] HID: Add Logitech Dinovo Edge battery quirk Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 052/152] proc: dont allow async path resolution of /proc/self components Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 053/152] nvme: free sq/cq dbbuf pointers when dbbuf set fails Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 054/152] io_uring: handle -EOPNOTSUPP on path resolution Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 055/152] net: stmmac: dwmac_lib: enlarge dma reset timeout Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 056/152] vdpasim: fix "mac_pton" undefined error Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 057/152] vhost: add helper to check if a vq has been setup Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 058/152] vhost scsi: alloc cmds per vq instead of session Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 059/152] vhost scsi: fix cmd completion race Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 060/152] cpuidle: tegra: Annotate tegra_pm_set_cpu_in_lp2() with RCU_NONIDLE Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 061/152] dmaengine: pl330: _prep_dma_memcpy: Fix wrong burst size Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 062/152] scsi: libiscsi: Fix NOP race condition Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 063/152] scsi: target: iscsi: Fix cmd abort fabric stop race Greg Kroah-Hartman
2020-12-01  8:52 ` [PATCH 5.9 064/152] lockdep: Put graph lock/unlock under lock_recursion protection Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 065/152] perf/x86: fix sysfs type mismatches Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 066/152] xtensa: uaccess: Add missing __user to strncpy_from_user() prototype Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 067/152] x86/dumpstack: Do not try to access user space code of other tasks Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 068/152] net: dsa: mv88e6xxx: Wait for EEPROM done after HW reset Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 069/152] bus: ti-sysc: Fix reset status check for modules with quirks Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 070/152] bus: ti-sysc: Fix bogus resetdone warning on enable for cpsw Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 071/152] ARM: OMAP2+: Manage MPU state properly for omap_enter_idle_coupled() Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 072/152] phy: tegra: xusb: Fix dangling pointer on probe failure Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 073/152] iwlwifi: mvm: use the HOT_SPOT_CMD to cancel an AUX ROC Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 074/152] iwlwifi: mvm: properly cancel a session protection for P2P Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 075/152] iwlwifi: mvm: write queue_sync_state only for sync Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 076/152] KVM: s390: pv: Mark mm as protected after the set secure parameters and improve cleanup Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 077/152] KVM: s390: remove diag318 reset code Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 078/152] btrfs: qgroup: dont commit transaction when we already hold the handle Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 079/152] batman-adv: set .owner to THIS_MODULE Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 080/152] usb: cdns3: gadget: fix some endian issues Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 081/152] usb: cdns3: gadget: calculate TD_SIZE based on TD Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 082/152] phy: qualcomm: usb: Fix SuperSpeed PHY OF dependency Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 083/152] phy: qualcomm: Fix 28 nm Hi-Speed USB " Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 084/152] arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 085/152] bus: ti-sysc: suppress err msg for timers used as clockevent/source Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 086/152] ARM: dts: dra76x: m_can: fix order of clocks Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 087/152] scsi: ufs: Fix race between shutdown and runtime resume flow Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 088/152] bnxt_en: fix error return code in bnxt_init_one() Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 089/152] bnxt_en: fix error return code in bnxt_init_board() Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 090/152] video: hyperv_fb: Fix the cache type when mapping the VRAM Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 091/152] bnxt_en: Release PCI regions when DMA mask setup fails during probe Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 092/152] block/keyslot-manager: prevent crash when num_slots=1 Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 093/152] cxgb4: fix the panic caused by non smac rewrite Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 094/152] dpaa2-eth: select XGMAC_MDIO for MDIO bus support Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 095/152] s390/qeth: make af_iucv TX notification call more robust Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 096/152] s390/qeth: fix af_iucv notification race Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 097/152] s390/qeth: fix tear down of async TX buffers Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 098/152] drm/mediatek: dsi: Modify horizontal front/back porch byte formula Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 099/152] bonding: wait for sysfs kobject destruction before freeing struct slave Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 100/152] ibmvnic: fix call_netdevice_notifiers in do_reset Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 101/152] ibmvnic: notify peers when failover and migration happen Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 102/152] powerpc/64s: Fix allnoconfig build since uaccess flush Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 103/152] iommu: Check return of __iommu_attach_device() Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 104/152] IB/mthca: fix return value of error branch in mthca_init_cq() Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 105/152] i40e: Fix removing driver while bare-metal VFs pass traffic Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 106/152] firmware: xilinx: Fix SD DLL node reset issue Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 107/152] spi: imx: fix the unbalanced spi runtime pm management Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 108/152] io_uring: fix shift-out-of-bounds when round up cq size Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 109/152] aquantia: Remove the build_skb path Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 110/152] nfc: s3fwrn5: use signed integer for parsing GPIO numbers Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 111/152] net: ena: handle bad request id in ena_netdev Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 112/152] net: ena: set initial DMA width to avoid intel iommu issue Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 113/152] net: ena: fix packets addresses for rx_offset feature Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 114/152] ibmvnic: fix NULL pointer dereference in reset_sub_crq_queues Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 115/152] ibmvnic: fix NULL pointer dereference in ibmvic_reset_crq Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 116/152] ibmvnic: enhance resetting status check during module exit Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 117/152] optee: add writeback to valid memory type Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 118/152] x86/tboot: Dont disable swiotlb when iommu is forced on Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 119/152] arm64: tegra: Wrong AON HSP reg property size Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 120/152] efi/efivars: Set generic ops before loading SSDT Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 121/152] efivarfs: revert "fix memory leak in efivarfs_create()" Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 122/152] efi: EFI_EARLYCON should depend on EFI Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 123/152] riscv: Explicitly specify the build id style in vDSO Makefile again Greg Kroah-Hartman
2020-12-01  8:53 ` [PATCH 5.9 124/152] RISC-V: Add missing jump label initialization Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 125/152] RISC-V: fix barrier() use in <vdso/processor.h> Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 126/152] net: stmmac: fix incorrect merge of patch upstream Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 127/152] enetc: Let the hardware auto-advance the taprio base-time of 0 Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 128/152] ptp: clockmatrix: bug fix for idtcm_strverscmp Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 129/152] drm/nouveau: fix relocations applying logic and a double-free Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 130/152] can: gs_usb: fix endianess problem with candleLight firmware Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 131/152] platform/x86: thinkpad_acpi: Send tablet mode switch at wakeup time Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 132/152] platform/x86: toshiba_acpi: Fix the wrong variable assignment Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 133/152] RDMA/hns: Fix wrong field of SRQ number the device supports Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 134/152] RDMA/hns: Fix retry_cnt and rnr_cnt when querying QP Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 135/152] RDMA/hns: Bugfix for memory window mtpt configuration Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 136/152] can: m_can: m_can_open(): remove IRQF_TRIGGER_FALLING from request_threaded_irq()s flags Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 137/152] can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 138/152] perf record: Synthesize cgroup events only if needed Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 139/152] perf stat: Use proper cpu for shadow stats Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 140/152] perf probe: Fix to die_entrypc() returns error correctly Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 141/152] spi: bcm2835aux: Restore err assignment in bcm2835aux_spi_probe Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 142/152] USB: core: Change %pK for __user pointers to %px Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 143/152] usb: gadget: f_midi: Fix memleak in f_midi_alloc Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 144/152] USB: core: Fix regression in Hercules audio card Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 145/152] USB: quirks: Add USB_QUIRK_DISCONNECT_SUSPEND quirk for Lenovo A630Z TIO built-in usb-audio card Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 146/152] usb: gadget: Fix memleak in gadgetfs_fill_super Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 147/152] irqchip/exiu: Fix the index of fwspec for IRQ type Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 148/152] x86/mce: Do not overwrite no_way_out if mce_end() fails Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 149/152] x86/speculation: Fix prctl() when spectre_v2_user={seccomp,prctl},ibpb Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 150/152] x86/resctrl: Remove superfluous kernfs_get() calls to prevent refcount leak Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 151/152] x86/resctrl: Add necessary kernfs_put() " Greg Kroah-Hartman
2020-12-01  8:54 ` [PATCH 5.9 152/152] drm/amdgpu: add rlc iram and dram firmware support Greg Kroah-Hartman
2020-12-01 18:21 ` [PATCH 5.9 000/152] 5.9.12-rc1 review Jeffrin Jose T
2020-12-01 21:40 ` Guenter Roeck
2020-12-02  4:50 ` Naresh Kamboju
2020-12-02 16:57 ` Shuah Khan
2020-12-02 17:46   ` Greg Kroah-Hartman

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