Commit Graph

916403 Commits

Author SHA1 Message Date
Hanjun Guo ead7ba1362 ACPI: scan: Put SPCR and STAO table after using it
The SPCR and STAO table needs to be released after
using it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo f900bf4951 ACPI: EC: Put the ACPI table after using it
The embedded controller boot resources table needs to be
released after using it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: avoid adding a label in acpi_ec_ecdt_start() ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo 11c7bdffc7 ACPI: APEI: Put the HEST table for error path
hest_tab will be used after hest_init(), but we need to release
it for error path.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo 43f595dcab ACPI: APEI: Put the error record serialization table for error path
The mapped error record serialization table needs to be
released for error path of erst_init().

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo 541156a38f ACPI: APEI: Put the error injection table for error path and module exit
The mapped error injection table will be used after einj_init()
for debugfs, but it should be released for module exit and error
path of einj_init().

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo 3d995f88ad ACPI: APEI: Put the boot error record table after parsing
The mapped boot error record table is not used after
bert_init(), release it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo fe4e1a576e ACPI: watchdog: Put the watchdog action table after parsing
The mapped watchdog action table should be released after the
successfully parsing, and the failure path in the driver
initialization.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo f8690227dd ACPI: LPIT: Put the low power idle table after using it
The mapped LPIT table is not used for runtime after init,
put the ACPI table to release the table mapping.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:16 +02:00
Linus Torvalds 0e698dfa28 Linux 5.7-rc4 2020-05-03 14:56:04 -07:00
Linus Torvalds 262f7a6b83 for-5.7-rc3-tag
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Merge tag 'for-5.7-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull more btrfs fixes from David Sterba:
 "A few more stability fixes, minor build warning fixes and git url
  fixup:

   - fix partial loss of prealloc extent past i_size after fsync

   - fix potential deadlock due to wrong transaction handle passing via
     journal_info

   - fix gcc 4.8 struct intialization warning

   - update git URL in MAINTAINERS entry"

* tag 'for-5.7-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  MAINTAINERS: btrfs: fix git repo URL
  btrfs: fix gcc-4.8 build warning for struct initializer
  btrfs: transaction: Avoid deadlock due to bad initialization timing of fs_info::journal_info
  btrfs: fix partial loss of prealloc extent past i_size after fsync
2020-05-03 11:30:08 -07:00
Linus Torvalds ea91593350 IOMMU Fixes for Linux v5.7-rc3
Including:
 
 	- Fix for a memory leak when dev_iommu gets freed and a
 	  sub-pointer does not.
 
 	- Build dependency fixes for Mediatek, spapr_tce, and
 	  Intel IOMMU driver.
 
 	- Export iommu_group_get_for_dev() only for GPLed modules
 
 	- Fix for AMD IOMMU interrupt remapping when x2apic is
 	  enabled
 
 	- Fix for error path in the QCOM IOMMU driver probe function
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Merge tag 'iommu-fixes-v5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fixes from Joerg Roedel:

 - Fix a memory leak when dev_iommu gets freed and a sub-pointer does
   not

 - Build dependency fixes for Mediatek, spapr_tce, and Intel IOMMU
   driver

 - Export iommu_group_get_for_dev() only for GPLed modules

 - Fix AMD IOMMU interrupt remapping when x2apic is enabled

 - Fix error path in the QCOM IOMMU driver probe function

* tag 'iommu-fixes-v5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/qcom: Fix local_base status check
  iommu: Properly export iommu_group_get_for_dev()
  iommu/vt-d: Use right Kconfig option name
  iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system
  iommu: spapr_tce: Disable compile testing to fix build on book3s_32 config
  iommu/mediatek: Fix MTK_IOMMU dependencies
  iommu: Fix the memory leak in dev_iommu_free()
2020-05-03 11:04:57 -07:00
Eric Biggers eb91db63a9 MAINTAINERS: btrfs: fix git repo URL
The git repo listed for btrfs hasn't been updated in over a year.
List the current one instead.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-05-03 18:13:18 +02:00
Linus Torvalds 743f05732f Power management fixes for 5.7-rc4
Prevent the intel_pstate driver from printing excessive diagnostic
 messages in some cases (Chris Wilson), make the hibernation restore
 kernel freeze kernel threads as well as user space tasks (Dexuan Cui)
 and fix the ACPI device PM disagnostic messages to include the correct
 power state name (Kai-Heng Feng).
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Merge tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:

 - prevent the intel_pstate driver from printing excessive diagnostic
   messages in some cases (Chris Wilson)

 - make the hibernation restore kernel freeze kernel threads as well as
   user space tasks (Dexuan Cui)

 - fix the ACPI device PM disagnostic messages to include the correct
   power state name (Kai-Heng Feng).

* tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: ACPI: Output correct message on target power state
  PM: hibernate: Freeze kernel threads in software_resume()
  cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once
2020-05-02 13:45:30 -07:00
Rafael J. Wysocki a53839963e Merge branches 'pm-cpufreq' and 'pm-sleep'
* pm-cpufreq:
  cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once

* pm-sleep:
  PM: hibernate: Freeze kernel threads in software_resume()
2020-05-02 21:39:17 +02:00
Linus Torvalds f66ed1ebbf Changes for 5.7:
- Move the FIBMAP range check and warning out of the backend iomap
 implementation and into the frontend ioctl_fibmap so that the checking
 is consistent for all implementations.
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Merge tag 'iomap-5.7-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap fix from Darrick Wong:
 "Hoist the check for an unrepresentable FIBMAP return value into
  ioctl_fibmap.

  The internal kernel function can handle 64-bit values (and is needed
  to fix a regression on ext4 + jbd2). It is only the userspace ioctl
  that is so old that it cannot deal"

* tag 'iomap-5.7-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  fibmap: Warn and return an error in case of block > INT_MAX
2020-05-02 11:31:12 -07:00
Linus Torvalds 29a47f456d NFS client bugfixes for Linux 5.7
Highlights include:
 
 Stable fixes
 - fix handling of backchannel binding in BIND_CONN_TO_SESSION
 
 Bugfixes
 - Fix a credential use-after-free issue in pnfs_roc()
 - Fix potential posix_acl refcnt leak in nfs3_set_acl
 - defer slow parts of rpc_free_client() to a workqueue
 - Fix an Oopsable race in __nfs_list_for_each_server()
 - Fix trace point use-after-free race
 - Regression: the RDMA client no longer responds to server disconnect requests
 - Fix return values of xdr_stream_encode_item_{present, absent}
 - _pnfs_return_layout() must always wait for layoutreturn completion
 
 Cleanups
 - Remove unreachable error conditions
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Merge tag 'nfs-for-5.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Stable fixes:
   - fix handling of backchannel binding in BIND_CONN_TO_SESSION

  Bugfixes:
   - Fix a credential use-after-free issue in pnfs_roc()
   - Fix potential posix_acl refcnt leak in nfs3_set_acl
   - defer slow parts of rpc_free_client() to a workqueue
   - Fix an Oopsable race in __nfs_list_for_each_server()
   - Fix trace point use-after-free race
   - Regression: the RDMA client no longer responds to server disconnect
     requests
   - Fix return values of xdr_stream_encode_item_{present, absent}
   - _pnfs_return_layout() must always wait for layoutreturn completion

  Cleanups:
   - Remove unreachable error conditions"

* tag 'nfs-for-5.7-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix a race in __nfs_list_for_each_server()
  NFSv4.1: fix handling of backchannel binding in BIND_CONN_TO_SESSION
  SUNRPC: defer slow parts of rpc_free_client() to a workqueue.
  NFSv4: Remove unreachable error condition due to rpc_run_task()
  SUNRPC: Remove unreachable error condition
  xprtrdma: Fix use of xdr_stream_encode_item_{present, absent}
  xprtrdma: Fix trace point use-after-free race
  xprtrdma: Restore wake-up-all to rpcrdma_cm_event_handler()
  nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl
  NFS/pnfs: Fix a credential use-after-free issue in pnfs_roc()
  NFS/pnfs: Ensure that _pnfs_return_layout() waits for layoutreturn completion
2020-05-02 11:24:01 -07:00
Linus Torvalds ed6889db63 dmaengine fixes for v5.7-rc4
Core:
  - Documentation typo fixes
  - fix the channel indexes
  - Dmatest: fixes for process hang and iterations
 Drivers:
  - hisilicon: build error fix without PCI_MSI
  - ti-k3: deadlock fix
  - uniphier-xdmac: fix for reg region
  - pch: fix data race
  - tegra: fix clock state
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Merge tag 'dmaengine-fix-5.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "Core:
   - Documentation typo fixes
   - fix the channel indexes
   - dmatest: fixes for process hang and iterations

  Drivers:
   - hisilicon: build error fix without PCI_MSI
   - ti-k3: deadlock fix
   - uniphier-xdmac: fix for reg region
   - pch: fix data race
   - tegra: fix clock state"

* tag 'dmaengine-fix-5.7-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: dmatest: Fix process hang when reading 'wait' parameter
  dmaengine: dmatest: Fix iteration non-stop logic
  dmaengine: tegra-apb: Ensure that clock is enabled during of DMA synchronization
  dmaengine: fix channel index enumeration
  dmaengine: mmp_tdma: Reset channel error on release
  dmaengine: mmp_tdma: Do not ignore slave config validation errors
  dmaengine: pch_dma.c: Avoid data race between probe and irq handler
  dt-bindings: dma: uniphier-xdmac: switch to single reg region
  include/linux/dmaengine: Typos fixes in API documentation
  dmaengine: xilinx_dma: Add missing check for empty list
  dmaengine: ti: k3-psil: fix deadlock on error path
  dmaengine: hisilicon: Fix build error without PCI_MSI
2020-05-02 11:16:14 -07:00
Linus Torvalds 690e2aba7b VFIO fixes for v5.7-rc4
- copy_*_user validity check for new vfio_dma_rw interface (Yan Zhao)
 
  - Fix a potential math overflow (Yan Zhao)
 
  - Use follow_pfn() for calculating PFNMAPs (Sean Christopherson)
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Merge tag 'vfio-v5.7-rc4' of git://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:

 - copy_*_user validity check for new vfio_dma_rw interface (Yan Zhao)

 - Fix a potential math overflow (Yan Zhao)

 - Use follow_pfn() for calculating PFNMAPs (Sean Christopherson)

* tag 'vfio-v5.7-rc4' of git://github.com/awilliam/linux-vfio:
  vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()
  vfio: avoid possible overflow in vfio_iommu_type1_pin_pages
  vfio: checking of validity of user vaddr in vfio_dma_rw
2020-05-01 17:19:15 -07:00
Linus Torvalds 42eb62d417 - Add -fasynchronous-unwind-tables to the vDSO CFLAGS.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Add -fasynchronous-unwind-tables to the vDSO CFLAGS"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: vdso: Add -fasynchronous-unwind-tables to cflags
2020-05-01 17:09:31 -07:00
Linus Torvalds cf0185308c io_uring-5.7-2020-05-01
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Merge tag 'io_uring-5.7-2020-05-01' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - Fix for statx not grabbing the file table, making AT_EMPTY_PATH fail

 - Cover a few cases where async poll can handle retry, eliminating the
   need for an async thread

 - fallback request busy/free fix (Bijan)

 - syzbot reported SQPOLL thread exit fix for non-preempt (Xiaoguang)

 - Fix extra put of req for sync_file_range (Pavel)

 - Always punt splice async. We'll improve this for 5.8, but wanted to
   eliminate the inode mutex lock from the non-blocking path for 5.7
   (Pavel)

* tag 'io_uring-5.7-2020-05-01' of git://git.kernel.dk/linux-block:
  io_uring: punt splice async because of inode mutex
  io_uring: check non-sync defer_list carefully
  io_uring: fix extra put in sync_file_range()
  io_uring: use cond_resched() in io_ring_ctx_wait_and_kill()
  io_uring: use proper references for fallback_req locking
  io_uring: only force async punt if poll based retry can't handle it
  io_uring: enable poll retry for any file with ->read_iter / ->write_iter
  io_uring: statx must grab the file table for valid fd
2020-05-01 17:03:06 -07:00
Linus Torvalds 052c467cb5 block-5.7-2020-05-01
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Merge tag 'block-5.7-2020-05-01' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few fixes for this release:

   - NVMe pull request from Christoph, with a single fix for a double
     free in the namespace error handling.

   - Kill the bd_openers check in blk_drop_partitions(), fixing a
     regression in this merge window (Christoph)"

* tag 'block-5.7-2020-05-01' of git://git.kernel.dk/linux-block:
  block: remove the bd_openers checks in blk_drop_partitions
  nvme: prevent double free in nvme_alloc_ns() error handling
2020-05-01 11:13:36 -07:00
Linus Torvalds ab386c46e4 Merge branch 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Three driver bugfixes, and two reverts because the original patches
  revealed underlying problems which the Tegra guys are now working on"

* 'i2c/for-current-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: aspeed: Avoid i2c interrupt status clear race condition.
  i2c: amd-mp2-pci: Fix Oops in amd_mp2_pci_init() error handling
  Revert "i2c: tegra: Better handle case where CPU0 is busy for a long time"
  Revert "i2c: tegra: Synchronize DMA before termination"
  i2c: iproc: generate stop event for slave writes
2020-05-01 11:10:09 -07:00
Linus Torvalds c536419022 sound fixes for 5.7-rc4
Just a collection of small fixes around this time.
 
 - One more try for fixing PCM OSS regression
 
 - HD-audio: a new quirk for Lenovo, the improved driver blacklisting,
   a lock fix in the minor error path, and a fix for the possible race
   at monitor notifiaction
 
 - USB-audio: a quirk ID fix, a fix for POD HD500 workaround
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Merge tag 'sound-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Just a collection of small fixes around this time:

   - One more try for fixing PCM OSS regression

   - HD-audio: a new quirk for Lenovo, the improved driver blacklisting,
     a lock fix in the minor error path, and a fix for the possible race
     at monitor notifiaction

   - USB-audio: a quirk ID fix, a fix for POD HD500 workaround"

* tag 'sound-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Correct a typo of NuPrime DAC-10 USB ID
  ALSA: opti9xx: shut up gcc-10 range warning
  ALSA: hda/hdmi: fix without unlocked before return
  ALSA: hda/hdmi: fix race in monitor detection during probe
  ALSA: hda/realtek - Two front mics on a Lenovo ThinkCenter
  ALSA: line6: Fix POD HD500 audio playback
  ALSA: pcm: oss: Place the plugin buffer overflow checks correctly (for 5.7)
  ALSA: pcm: oss: Place the plugin buffer overflow checks correctly
  ALSA: hda: Match both PCI ID and SSID for driver blacklist
2020-05-01 11:05:28 -07:00
Linus Torvalds 477bfeb9a3 drm fixes for 5.7-rc4
core:
 - EDID off by one DTD fix
 - DP mst write return code fix
 
 dma-buf:
 - fix SET_NAME ioctl uapi
 - doc fixes
 
 amdgpu:
 - Fix a green screen on resume issue
 - PM fixes for SR-IOV
  SDMA fix for navi
 - Renoir display fixes
 - Cursor and pageflip stuttering fixes
 - Misc additional display fixes
 - (uapi) Add additional DCC tiling flags for navi1x
 
 i915:
 - Fix selftest refcnt leak (Xiyu)
 - Fix gem vma lock (Chris)
 - Fix gt's i915_request.timeline acquire by checking if cacheline is valid (Chris)
 - Fix IRQ postinistall fault masks (Matt)
 
 qxl:
 - use after gree fix
 - fix lost kunmap
 - release leak fix
 
 virtio:
 - context destruction fix
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Merge tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular scheduled fixes for graphics. Nothing to extreme bunch of
  amdgpu fixes, i915 and qxl fixes, along with some misc ones.

  All seems to be progressing normally.

  core:
   - EDID off by one DTD fix
   - DP mst write return code fix

  dma-buf:
   - fix SET_NAME ioctl uapi
   - doc fixes

  amdgpu:
   - Fix a green screen on resume issue
   - PM fixes for SR-IOV SDMA fix for navi
   - Renoir display fixes
   - Cursor and pageflip stuttering fixes
   - Misc additional display fixes
   - (uapi) Add additional DCC tiling flags for navi1x

  i915:
   - Fix selftest refcnt leak (Xiyu)
   - Fix gem vma lock (Chris)
   - Fix gt's i915_request.timeline acquire by checking if cacheline is
     valid (Chris)
   - Fix IRQ postinistall fault masks (Matt)

  qxl:
   - use after gree fix
   - fix lost kunmap
   - release leak fix

  virtio:
   - context destruction fix"

* tag 'drm-fixes-2020-05-01' of git://anongit.freedesktop.org/drm/drm: (26 commits)
  dma-buf: fix documentation build warnings
  drm/qxl: qxl_release use after free
  drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
  drm/i915: Use proper fault mask in interrupt postinstall too
  drm/amd/display: Use cursor locking to prevent flip delays
  drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1
  drm/amd/display: Defer cursor update around VUPDATE for all ASIC
  drm/amd/display: fix rn soc bb update
  drm/amd/display: check if REFCLK_CNTL register is present
  drm/amdgpu: bump version for invalidate L2 before SDMA IBs
  drm/amdgpu: invalidate L2 before SDMA IBs (v2)
  drm/amdgpu: add tiling flags from Mesa
  drm/amd/powerplay: avoid using pm_en before it is initialized revised
  Revert "drm/amd/powerplay: avoid using pm_en before it is initialized"
  drm/qxl: qxl_release leak in qxl_hw_surface_alloc()
  drm/qxl: qxl_release leak in qxl_draw_dirty_fb()
  drm/virtio: only destroy created contexts
  drm/dp_mst: Fix drm_dp_send_dpcd_write() return code
  drm/i915/gt: Check cacheline is valid before acquiring
  drm/i915/gem: Hold obj->vma.lock over for_each_ggtt_vma()
  ...
2020-05-01 11:01:51 -07:00
Linus Torvalds cebcff3a1c SCSI fixes on 20200430
Four minor fixes: three in drivers and one in the core.  The core one
 allows an additional state change that fixes a regression introduced
 by an update to the aacraid driver in the previous merge window.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four minor fixes: three in drivers and one in the core.

  The core one allows an additional state change that fixes a regression
  introduced by an update to the aacraid driver in the previous merge
  window"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: target/iblock: fix WRITE SAME zeroing
  scsi: qla2xxx: check UNLOADING before posting async work
  scsi: qla2xxx: set UNLOADING before waiting for session deletion
  scsi: core: Allow the state change from SDEV_QUIESCE to SDEV_BLOCK
2020-05-01 11:00:07 -07:00
Pavel Begunkov 2fb3e82284 io_uring: punt splice async because of inode mutex
Nonblocking do_splice() still may wait for some time on an inode mutex.
Let's play safe and always punt it async.

Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-01 08:50:57 -06:00
Pavel Begunkov 4ee3631451 io_uring: check non-sync defer_list carefully
io_req_defer() do double-checked locking. Use proper helpers for that,
i.e. list_empty_careful().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-01 08:50:30 -06:00
Pavel Begunkov 7759a0bfad io_uring: fix extra put in sync_file_range()
[   40.179474] refcount_t: underflow; use-after-free.
[   40.179499] WARNING: CPU: 6 PID: 1848 at lib/refcount.c:28 refcount_warn_saturate+0xae/0xf0
...
[   40.179612] RIP: 0010:refcount_warn_saturate+0xae/0xf0
[   40.179617] Code: 28 44 0a 01 01 e8 d7 01 c2 ff 0f 0b 5d c3 80 3d 15 44 0a 01 00 75 91 48 c7 c7 b8 f5 75 be c6 05 05 44 0a 01 01 e8 b7 01 c2 ff <0f> 0b 5d c3 80 3d f3 43 0a 01 00 0f 85 6d ff ff ff 48 c7 c7 10 f6
[   40.179619] RSP: 0018:ffffb252423ebe18 EFLAGS: 00010286
[   40.179623] RAX: 0000000000000000 RBX: ffff98d65e929400 RCX: 0000000000000000
[   40.179625] RDX: 0000000000000001 RSI: 0000000000000086 RDI: 00000000ffffffff
[   40.179627] RBP: ffffb252423ebe18 R08: 0000000000000001 R09: 000000000000055d
[   40.179629] R10: 0000000000000c8c R11: 0000000000000001 R12: 0000000000000000
[   40.179631] R13: ffff98d68c434400 R14: ffff98d6a9cbaa20 R15: ffff98d6a609ccb8
[   40.179634] FS:  0000000000000000(0000) GS:ffff98d6af580000(0000) knlGS:0000000000000000
[   40.179636] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.179638] CR2: 00000000033e3194 CR3: 000000006480a003 CR4: 00000000003606e0
[   40.179641] Call Trace:
[   40.179652]  io_put_req+0x36/0x40
[   40.179657]  io_free_work+0x15/0x20
[   40.179661]  io_worker_handle_work+0x2f5/0x480
[   40.179667]  io_wqe_worker+0x2a9/0x360
[   40.179674]  ? _raw_spin_unlock_irqrestore+0x24/0x40
[   40.179681]  kthread+0x12c/0x170
[   40.179685]  ? io_worker_handle_work+0x480/0x480
[   40.179690]  ? kthread_park+0x90/0x90
[   40.179695]  ret_from_fork+0x35/0x40
[   40.179702] ---[ end trace 85027405f00110aa ]---

Opcode handler must never put submission ref, but that's what
io_sync_file_range_finish() do. use io_steal_work() there.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-05-01 08:50:30 -06:00
Tang Bin b52649aee6 iommu/qcom: Fix local_base status check
The function qcom_iommu_device_probe() does not perform sufficient
error checking after executing devm_ioremap_resource(), which can
result in crashes if a critical error path is encountered.

Fixes: 0ae349a0f3 ("iommu/qcom: Add qcom_iommu")
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200418134703.1760-1-tangbin@cmss.chinamobile.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-01 13:37:23 +02:00
Greg Kroah-Hartman ae74c19faa iommu: Properly export iommu_group_get_for_dev()
In commit a7ba5c3d00 ("drivers/iommu: Export core IOMMU API symbols to
permit modular drivers") a bunch of iommu symbols were exported, all
with _GPL markings except iommu_group_get_for_dev().  That export should
also be _GPL like the others.

Fixes: a7ba5c3d00 ("drivers/iommu: Export core IOMMU API symbols to permit modular drivers")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: John Garry <john.garry@huawei.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200430120120.2948448-1-gregkh@linuxfoundation.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-01 13:32:34 +02:00
Lu Baolu ba61c3da00 iommu/vt-d: Use right Kconfig option name
The CONFIG_ prefix should be added in the code.

Fixes: 046182525d ("iommu/vt-d: Add Kconfig option to enable/disable scalable mode")
Reported-and-tested-by: Kumar, Sanjay K <sanjay.k.kumar@intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Link: https://lore.kernel.org/r/20200501072427.14265-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-01 13:31:17 +02:00
Suravee Suthikulpanit b74aa02d7a iommu/amd: Fix legacy interrupt remapping for x2APIC-enabled system
Currently, system fails to boot because the legacy interrupt remapping
mode does not enable 128-bit IRTE (GA), which is required for x2APIC
support.

Fix by using AMD_IOMMU_GUEST_IR_LEGACY_GA mode when booting with
kernel option amd_iommu_intr=legacy instead. The initialization
logic will check GASup and automatically fallback to using
AMD_IOMMU_GUEST_IR_LEGACY if GA mode is not supported.

Fixes: 3928aa3f57 ("iommu/amd: Detect and enable guest vAPIC support")
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/1587562202-14183-1-git-send-email-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2020-05-01 13:21:18 +02:00
Xiaoguang Wang 3fd44c8671 io_uring: use cond_resched() in io_ring_ctx_wait_and_kill()
While working on to make io_uring sqpoll mode support syscalls that need
struct files_struct, I got cpu soft lockup in io_ring_ctx_wait_and_kill(),

    while (ctx->sqo_thread && !wq_has_sleeper(&ctx->sqo_wait))
        cpu_relax();

above loop never has an chance to exit, it's because preempt isn't enabled
in the kernel, and the context calling io_ring_ctx_wait_and_kill() and
io_sq_thread() run in the same cpu, if io_sq_thread calls a cond_resched()
yield cpu and another context enters above loop, then io_sq_thread() will
always in runqueue and never exit.

Use cond_resched() can fix this issue.

 Reported-by: syzbot+66243bb7126c410cefe6@syzkaller.appspotmail.com
Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-30 22:24:27 -06:00
Bijan Mottahedeh dd461af659 io_uring: use proper references for fallback_req locking
Use ctx->fallback_req address for test_and_set_bit_lock() and
clear_bit_unlock().

Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-30 22:24:27 -06:00
Jens Axboe 490e89676a io_uring: only force async punt if poll based retry can't handle it
We do blocking retry from our poll handler, if the file supports polled
notifications. Only mark the request as needing an async worker if we
can't poll for it.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-30 22:24:27 -06:00
Jens Axboe af197f50ac io_uring: enable poll retry for any file with ->read_iter / ->write_iter
We can have files like eventfd where it's perfectly fine to do poll
based retry on them, right now io_file_supports_async() doesn't take
that into account.

Pass in data direction and check the f_op instead of just always needing
an async worker.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-30 22:24:22 -06:00
Dave Airlie e3dcd86b3b Merge tag 'amd-drm-fixes-5.7-2020-04-29' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.7-2020-04-29:

amdgpu:
- Fix a green screen on resume issue
- PM fixes for SR-IOV
- SDMA fix for navi
- Renoir display fixes
- Cursor and pageflip stuttering fixes
- Misc additional display fixes

UAPI:
- Add additional DCC tiling flags for navi1x
  Used by: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4697

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200429212008.4306-1-alexander.deucher@amd.com
2020-05-01 11:19:55 +10:00
Dave Airlie a979bb700a - Fix selftest refcnt leak (Xiyu)
- Fix gem vma lock (Chris)
 - Fix gt's i915_request.timeline acquire by checking if cacheline is valid (Chris)
 - Fix IRQ postinistall fault masks (Matt)
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Merge tag 'drm-intel-fixes-2020-04-30' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix selftest refcnt leak (Xiyu)
- Fix gem vma lock (Chris)
- Fix gt's i915_request.timeline acquire by checking if cacheline is valid (Chris)
- Fix IRQ postinistall fault masks (Matt)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430140042.GA270140@intel.com
2020-05-01 11:04:33 +10:00
Dave Airlie c62098c991 A few resources-related fixes for qxl, some doc build warnings and ioctl
fixes for dma-buf, an off-by-one fix in edid, and a return code fix in
 DP-MST
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Merge tag 'drm-misc-fixes-2020-04-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A few resources-related fixes for qxl, some doc build warnings and ioctl
fixes for dma-buf, an off-by-one fix in edid, and a return code fix in
DP-MST

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200430153201.wx6of2b2gsoip7bk@gilmour.lan
2020-05-01 10:42:09 +10:00
Linus Torvalds c45e8bccec - Document DM integrity allow_discard feature that was added during
5.7 merge window.
 
 - Fix potential for DM writecache data corruption during DM table
   reloads.
 
 - Fix DM verity's FEC support's hash block number calculation in
   verity_fec_decode().
 
 - Fix bio-based DM multipath crash due to use of stale copy of
   MPATHF_QUEUE_IO flag state in __map_bio().
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Merge tag 'for-5.7/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Document DM integrity allow_discard feature that was added during 5.7
   merge window.

 - Fix potential for DM writecache data corruption during DM table
   reloads.

 - Fix DM verity's FEC support's hash block number calculation in
   verity_fec_decode().

 - Fix bio-based DM multipath crash due to use of stale copy of
   MPATHF_QUEUE_IO flag state in __map_bio().

* tag 'for-5.7/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath
  dm verity fec: fix hash block number in verity_fec_decode
  dm writecache: fix data corruption when reloading the target
  dm integrity: document allow_discard option
2020-04-30 16:45:08 -07:00
Linus Torvalds 39e16d9342 selinux/stable-5.7 PR 20200430
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Merge tag 'selinux-pr-20200430' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull SELinux fixes from Paul Moore:
 "Two more SELinux patches to fix problems in the v5.7-rcX releases.

  Wei Yongjun's patch fixes a return code in an error path, and my patch
  fixes a problem where we were not correctly applying access controls
  to all of the netlink messages in the netlink_send LSM hook"

* tag 'selinux-pr-20200430' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: properly handle multiple messages in selinux_netlink_send()
  selinux: fix error return code in cond_read_list()
2020-04-30 16:35:45 -07:00
Linus Torvalds 0468915bdb linux-kselftest-kunit-5.7-rc4
This Kunit update for Linux 5.7-rc4 consists of a single fix to flush
 the test summary to the console log without delay.
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Merge tag 'linux-kselftest-kunit-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kunit fix from Shuah Khan:
 "A single fix to flush the test summary to the console log without
  delay"

* tag 'linux-kselftest-kunit-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: Add missing newline in summary message
2020-04-30 16:32:47 -07:00
Linus Torvalds 75ec0ba2ac linux-kselftest-5.7-rc4
This kselftest update for Linux 5.7-rc4 consists of:
 
 - ftrace test fixes to check for required filter files and kprobe args.
 
 - Kselftest build/cross-build dependency check script to make it easier
   for test ring admins/users to configure build systems correctly for
   build/cross-build kselftests. Currently checks library dependencies.
 
     - Checks if Kselftests can be built/cross-built on a system running
       compile test on a trivial C file with LDLIBS specified for each
       individual test in their Makefiles.
     - Prints suggested target list for a system filtering out tests
       failed the build dependency check from the TARGETS in Selftests
       the main Makefile when optional -p is specified.
     - Prints pass/fail dependency check for each tests/sub-test.
     - Prints pass/fail targets and libraries.
     - Default: runs dependency checks on all tests.
     - Optional test name can be specified to check dependencies for it.
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Merge tag 'linux-kselftest-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - ftrace test fixes to check for required filter files and kprobe args.

 - Kselftest build/cross-build dependency check script to make it easier
   for test ring admins/users to configure build systems correctly for
   build/cross-build kselftests. Currently checks library dependencies.

    - Checks if Kselftests can be built/cross-built on a system running
      compile test on a trivial C file with LDLIBS specified for each
      individual test in their Makefiles.

    - Prints suggested target list for a system filtering out tests
      failed the build dependency check from the TARGETS in Selftests
      the main Makefile when optional -p is specified.

    - Prints pass/fail dependency check for each tests/sub-test.

    - Prints pass/fail targets and libraries.

    - Default: runs dependency checks on all tests.

    - Optional test name can be specified to check dependencies for it.

* tag 'linux-kselftest-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ftrace: Check the first record for kprobe_args_type.tc
  selftests: add build/cross-build dependency check script
  selftests/ftrace: Check required filter files before running test
2020-04-30 16:28:49 -07:00
Paul Moore fb73974172 selinux: properly handle multiple messages in selinux_netlink_send()
Fix the SELinux netlink_send hook to properly handle multiple netlink
messages in a single sk_buff; each message is parsed and subject to
SELinux access control.  Prior to this patch, SELinux only inspected
the first message in the sk_buff.

Cc: stable@vger.kernel.org
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2020-04-30 16:18:37 -04:00
Trond Myklebust 9c07b75b80 NFS: Fix a race in __nfs_list_for_each_server()
The struct nfs_server gets put on the cl_superblocks list before
the server->super field has been initialised, in which case the
call to nfs_sb_active() will Oops. Add a check to ensure that
we skip such a list entry.

Fixes: 3c9e502b59 ("NFS: Add a helper nfs_client_for_each_server()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2020-04-30 15:08:26 -04:00
Linus Torvalds af4a32ad21 MMC host:
- meson-mx-sdio: Fix support for HW busy detection
  - sdhci-msm: Fix support for HW busy detection
  - cqhci: Fix polling loop by converting to readx_poll_timeout()
  - sdhci-xenon: Fix annoying 1.8V regulator warning
  - sdhci-pci: Fix eMMC driver strength for BYT-based controllers
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Merge tag 'mmc-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:

 - meson-mx-sdio: Fix support for HW busy detection

 - sdhci-msm: Fix support for HW busy detection

 - cqhci: Fix polling loop by converting to readx_poll_timeout()

 - sdhci-xenon: Fix annoying 1.8V regulator warning

 - sdhci-pci: Fix eMMC driver strength for BYT-based controllers

* tag 'mmc-v5.7-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-pci: Fix eMMC driver strength for BYT-based controllers
  mmc: sdhci-xenon: fix annoying 1.8V regulator warning
  mmc: sdhci-msm: Enable host capabilities pertains to R1b response
  mmc: cqhci: Avoid false "cqhci: CQE stuck on" by not open-coding timeout loop
  mmc: meson-mx-sdio: remove the broken ->card_busy() op
  mmc: meson-mx-sdio: Set MMC_CAP_WAIT_WHILE_BUSY
  mmc: core: make mmc_interrupt_hpi() static
2020-04-30 10:38:48 -07:00
Vincenzo Frascino 1578e5d031 arm64: vdso: Add -fasynchronous-unwind-tables to cflags
On arm64 linux gcc uses -fasynchronous-unwind-tables -funwind-tables
by default since gcc-8, so now the de facto platform ABI is to allow
unwinding from async signal handlers.

However on bare metal targets (aarch64-none-elf), and on old gcc,
async and sync unwind tables are not enabled by default to avoid
runtime memory costs.

This means if linux is built with a baremetal toolchain the vdso.so
may not have unwind tables which breaks the gcc platform ABI guarantee
in userspace.

Add -fasynchronous-unwind-tables explicitly to the vgettimeofday.o
cflags to address the ABI change.

Fixes: 28b1a824a4 ("arm64: vdso: Substitute gettimeofday() with C implementation")
Cc: Will Deacon <will@kernel.org>
Reported-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-04-30 18:35:32 +01:00
Christoph Hellwig 10c70d95c0 block: remove the bd_openers checks in blk_drop_partitions
When replacing the bd_super check with a bd_openers I followed a logical
conclusion, which turns out to be utterly wrong.  When a block device has
bd_super sets it has a mount file system on it (although not every
mounted file system sets bd_super), but that also implies it doesn't even
have partitions to start with.

So instead of trying to come up with a logical check for all openers,
just remove the check entirely.

Fixes: d3ef553627 ("block: fix busy device checking in blk_drop_partitions")
Fixes: cb6b771b05 ("block: fix busy device checking in blk_drop_partitions again")
Reported-by: Michal Koutný <mkoutny@suse.com>
Reported-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-30 10:25:43 -06:00
Jens Axboe 47ed39e062 Merge branch 'nvme-5.7' of git://git.infradead.org/nvme into block-5.7
Pull NVMe fix from Christoph.

* 'nvme-5.7' of git://git.infradead.org/nvme:
  nvme: prevent double free in nvme_alloc_ns() error handling
2020-04-30 09:32:48 -06:00
Ritesh Harjani b75dfde121 fibmap: Warn and return an error in case of block > INT_MAX
We better warn the fibmap user and not return a truncated and therefore
an incorrect block map address if the bmap() returned block address
is greater than INT_MAX (since user supplied integer pointer).

It's better to pr_warn() all user of ioctl_fibmap() and return a proper
error code rather than silently letting a FS corruption happen if the
user tries to fiddle around with the returned block map address.

We fix this by returning an error code of -ERANGE and returning 0 as the
block mapping address in case if it is > INT_MAX.

Now iomap_bmap() could be called from either of these two paths.
Either when a user is calling an ioctl_fibmap() interface to get
the block mapping address or by some filesystem via use of bmap()
internal kernel API.
bmap() kernel API is well equipped with handling of u64 addresses.

WARN condition in iomap_bmap_actor() was mainly added to warn all
the fibmap users. But now that we have directly added this warning
for all fibmap users and also made sure to return 0 as block map address
in case if addr > INT_MAX.
So we can now remove this logic from iomap_bmap_actor().

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-04-30 07:57:46 -07:00