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  1. 02 Jun, 2018 13 commits
  3. 31 May, 2018 6 commits
    • Linus Torvalds's avatar
      Merge tag 'xfs-4.17-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux · 0512e013
      Linus Torvalds authored 
      Pull xfs fix from Darrick Wong:
 "Clear out i_mapping error state when we're reinitializing inodes.

  This last minute fix prevents writeback error state from persisting
  past the end of the in-core inode lifecycle and causing EIO errors to
  be reported to userspace when no error has occurred.

  This fix for the behavioral regression has been soaking in for-next
  for a while, but various fs developers persuaded me to try to get it
  upstream for 4.17 because the patch that broke things was introduced
  in 4.17-rc4"

* tag 'xfs-4.17-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  fs: clear writeback errors in inode_init_always
      0512e013
    • Leo (Sunpeng) Li's avatar
      drm/amd/display: Update color props when modeset is required · bc13f2f8
      Leo (Sunpeng) Li authored 
      This fixes issues where color management properties don't persist
over DPMS on/off, or when the CRTC is moved across connectors.
Signed-off-by: default avatarLeo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      bc13f2f8
    • David Francis's avatar
      drm/amd/display: Make atomic-check validate underscan changes · a9e8d275
      David Francis authored 
      When the underscan state was changed, atomic-check was triggering a
validation but passing the old underscan values.  This change adds a
somewhat hacky check in dm_update_crtcs_state that will update the
stream if old and newunderscan values are different.
This was causing 4k on Fiji to allow underscan when it wasn't permitted.
Signed-off-by: default avatarDavid Francis <David.Francis@amd.com>
Reviewed-by: default avatarDavid Francis <David.Francis@amd.com>
Acked-by: default avatarHarry Wentland <harry.wentland@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      a9e8d275
    • Linus Torvalds's avatar
      Merge tag 'platform-drivers-x86-v4.17-4' of git://git.infradead.org/linux-platform-drivers-x86 · dd52cb87
      Linus Torvalds authored 
      Pull x86 platform driver fix from Andy Shevchenko:
 "Fix NULL pointer dereference in asus-wmi on rfkill cleanup.

  The effective change is just one new condition - two lines of code.
  But it required moving one static helper function, which is why the
  diff looks a bit bigger"

* tag 'platform-drivers-x86-v4.17-4' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: asus-wmi: Fix NULL pointer dereference
      dd52cb87
    • João Paulo Rechi Vita's avatar
      platform/x86: asus-wmi: Fix NULL pointer dereference · 32ffd6e8
      João Paulo Rechi Vita authored 
      Do not perform the rfkill cleanup routine when
(asus->driver->wlan_ctrl_by_user && ashs_present()) is true, since
nothing is registered with the rfkill subsystem in that case. Doing so
leads to the following kernel NULL pointer dereference:

  BUG: unable to handle kernel NULL pointer dereference at           (null)
  IP: [<ffffffff816c7348>] __mutex_lock_slowpath+0x98/0x120
  PGD 1a3aa8067
  PUD 1a3b3d067
  PMD 0

  Oops: 0002 [#1] PREEMPT SMP
  Modules linked in: bnep ccm binfmt_misc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core hid_a4tech videodev x86_pkg_temp_thermal intel_powerclamp coretemp ath3k btusb btrtl btintel bluetooth kvm_intel snd_hda_codec_hdmi kvm snd_hda_codec_realtek snd_hda_codec_generic irqbypass crc32c_intel arc4 i915 snd_hda_intel snd_hda_codec ath9k ath9k_common ath9k_hw ath i2c_algo_bit snd_hwdep mac80211 ghash_clmulni_intel snd_hda_core snd_pcm snd_timer cfg80211 ehci_pci xhci_pci drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm xhci_hcd ehci_hcd asus_nb_wmi(-) asus_wmi sparse_keymap r8169 rfkill mxm_wmi serio_raw snd mii mei_me lpc_ich i2c_i801 video soundcore mei i2c_smbus wmi i2c_core mfd_core
  CPU: 3 PID: 3275 Comm: modprobe Not tainted 4.9.34-gentoo #34
  Hardware name: ASUSTeK COMPUTER INC. K56CM/K56CM, BIOS K56CM.206 08/21/2012
  task: ffff8801a639ba00 task.stack: ffffc900014cc000
  RIP: 0010:[<ffffffff816c7348>]  [<ffffffff816c7348>] __mutex_lock_slowpath+0x98/0x120
  RSP: 0018:ffffc900014cfce0  EFLAGS: 00010282
  RAX: 0000000000000000 RBX: ffff8801a54315b0 RCX: 00000000c0000100
  RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff8801a54315b4
  RBP: ffffc900014cfd30 R08: 0000000000000000 R09: 0000000000000002
  R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801a54315b4
  R13: ffff8801a639ba00 R14: 00000000ffffffff R15: ffff8801a54315b8
  FS:  00007faa254fb700(0000) GS:ffff8801aef80000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 00000001a3b1b000 CR4: 00000000001406e0
  Stack:
   ffff8801a54315b8 0000000000000000 ffffffff814733ae ffffc900014cfd28
   ffffffff8146a28c ffff8801a54315b0 0000000000000000 ffff8801a54315b0
   ffff8801a66f3820 0000000000000000 ffffc900014cfd48 ffffffff816c73e7
  Call Trace:
   [<ffffffff814733ae>] ? acpi_ut_release_mutex+0x5d/0x61
   [<ffffffff8146a28c>] ? acpi_ns_get_node+0x49/0x52
   [<ffffffff816c73e7>] mutex_lock+0x17/0x30
   [<ffffffffa00a3bb4>] asus_rfkill_hotplug+0x24/0x1a0 [asus_wmi]
   [<ffffffffa00a4421>] asus_wmi_rfkill_exit+0x61/0x150 [asus_wmi]
   [<ffffffffa00a49f1>] asus_wmi_remove+0x61/0xb0 [asus_wmi]
   [<ffffffff814a5128>] platform_drv_remove+0x28/0x40
   [<ffffffff814a2901>] __device_release_driver+0xa1/0x160
   [<ffffffff814a29e3>] device_release_driver+0x23/0x30
   [<ffffffff814a1ffd>] bus_remove_device+0xfd/0x170
   [<ffffffff8149e5a9>] device_del+0x139/0x270
   [<ffffffff814a5028>] platform_device_del+0x28/0x90
   [<ffffffff814a50a2>] platform_device_unregister+0x12/0x30
   [<ffffffffa00a4209>] asus_wmi_unregister_driver+0x19/0x30 [asus_wmi]
   [<ffffffffa00da0ea>] asus_nb_wmi_exit+0x10/0xf26 [asus_nb_wmi]
   [<ffffffff8110c692>] SyS_delete_module+0x192/0x270
   [<ffffffff810022b2>] ? exit_to_usermode_loop+0x92/0xa0
   [<ffffffff816ca560>] entry_SYSCALL_64_fastpath+0x13/0x94
  Code: e8 5e 30 00 00 8b 03 83 f8 01 0f 84 93 00 00 00 48 8b 43 10 4c 8d 7b 08 48 89 63 10 41 be ff ff ff ff 4c 89 3c 24 48 89 44 24 08 <48> 89 20 4c 89 6c 24 10 eb 1d 4c 89 e7 49 c7 45 08 02 00 00 00
  RIP  [<ffffffff816c7348>] __mutex_lock_slowpath+0x98/0x120
   RSP <ffffc900014cfce0>
  CR2: 0000000000000000
  ---[ end trace 8d484233fa7cb512 ]---
  note: modprobe[3275] exited with preempt_count 2

https://bugzilla.kernel.org/show_bug.cgi?id=196467

Reported-by: red.f0xyz@gmail.com
Signed-off-by: default avatarJoão Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
      32ffd6e8
    • Darrick J. Wong's avatar
      fs: clear writeback errors in inode_init_always · 829bc787
      Darrick J. Wong authored 
      In inode_init_always(), we clear the inode mapping flags, which clears
any retained error (AS_EIO, AS_ENOSPC) bits.  Unfortunately, we do not
also clear wb_err, which means that old mapping errors can leak through
to new inodes.

This is crucial for the XFS inode allocation path because we recycle old
in-core inodes and we do not want error state from an old file to leak
into the new file.  This bug was discovered by running generic/036 and
generic/047 in a loop and noticing that the EIOs generated by the
collision of direct and buffered writes in generic/036 would survive the
remount between 036 and 047, and get reported to the fsyncs (on
different files!) in generic/047.
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
      829bc787
  5. 30 May, 2018 11 commits
  7. 29 May, 2018 9 commits
  9. 28 May, 2018 1 commit
    • Steven Rostedt (VMware)'s avatar
      tracing: Make the snapshot trigger work with instances · 2824f503
      Steven Rostedt (VMware) authored 
      The snapshot trigger currently only affects the main ring buffer, even when
it is used by the instances. This can be confusing as the snapshot trigger
is listed in the instance.

 > # cd /sys/kernel/tracing
 > # mkdir instances/foo
 > # echo snapshot > instances/foo/events/syscalls/sys_enter_fchownat/trigger
 > # echo top buffer > trace_marker
 > # echo foo buffer > instances/foo/trace_marker
 > # touch /tmp/bar
 > # chown rostedt /tmp/bar
 > # cat instances/foo/snapshot
 # tracer: nop
 #
 #
 # * Snapshot is freed *
 #
 # Snapshot commands:
 # echo 0 > snapshot : Clears and frees snapshot buffer
 # echo 1 > snapshot : Allocates snapshot buffer, if not already allocated.
 #                      Takes a snapshot of the main buffer.
 # echo 2 > snapshot : Clears snapshot buffer (but does not allocate or free)
 #                      (Doesn't have to be '2' works with any number that
 #                       is not a '0' or '1')

 > # cat snapshot
 # tracer: nop
 #
 #                              _-----=> irqs-off
 #                             / _----=> need-resched
 #                            | / _---=> hardirq/softirq
 #                            || / _--=> preempt-depth
 #                            ||| /     delay
 #           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
 #              | |       |   ||||       |         |
             bash-1189  [000] ....   111.488323: tracing_mark_write: top buffer

Not only did the snapshot occur in the top level buffer, but the instance
snapshot buffer should have been allocated, and it is still free.

Cc: stable@vger.kernel.org
Fixes: 85f2b082 ("tracing: Add basic event trigger framework")
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      2824f503
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