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Instead of solving the underlying problem of the double invocation of
__sched_fork() for idle tasks, sched-ext decided to hack around the issue
by partially clearing out the entity struct to preserve the already
enqueued node. A provided analysis and solution has been ignored for four
months.
Now that someone else has taken care of cleaning it up, remove the
disgusting hack and clear out the full structure. Remove the comment in the
structure declaration as well, as there is no requirement for @node being
the last element anymore.
Fixes: f0e1a0643a59 ("sched_ext: Implement BPF extensible scheduler class")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/87ldy82wkc.ffs@tglx
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Overlapping fixes solving the same bug slightly differently:
7266f0a6d3bb fs/bcachefs: Fix __wait_on_freeing_inode() definition of waitqueue entry
3b80552e7057 bcachefs: __wait_for_freeing_inode: Switch to wait_bit_queue_entry
Use the upstream version.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 6.12-rc4:
- qcom-geni serial driver fixes, wow what a mess of a UART chip that
thing is...
- vt infoleak fix for odd font sizes
- imx serial driver bugfix
- yet-another n_gsm ldisc bugfix, slowly chipping down the issues in
that piece of code
All of these have been in linux-next for over a week with no reported
issues"
* tag 'tty-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: qcom-geni: rename suspend functions
serial: qcom-geni: drop unused receive parameter
serial: qcom-geni: drop flip buffer WARN()
serial: qcom-geni: fix rx cancel dma status bit
serial: qcom-geni: fix receiver enable
serial: qcom-geni: fix dma rx cancellation
serial: qcom-geni: fix shutdown race
serial: qcom-geni: revert broken hibernation support
serial: qcom-geni: fix polled console initialisation
serial: imx: Update mctrl old_status on RTSD interrupt
tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
vt: prevent kernel-infoleak in con_font_get()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Borislav Petkov:
- Fix a case for sifive-plic where an interrupt gets disabled *and*
masked and remains masked when it gets reenabled later
- Plug a small race in GIC-v4 where userspace can force an affinity
change of a virtual CPU (vPE) in its unmapping path
- Do not mix the two sets of ocelot irqchip's registers in the mask
calculation of the main interrupt sticky register
- Other smaller fixlets and cleanups
* tag 'irq_urgent_for_v6.12_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/renesas-rzg2l: Fix missing put_device
irqchip/riscv-intc: Fix SMP=n boot with ACPI
irqchip/sifive-plic: Unmask interrupt in plic_irq_enable()
irqchip/gic-v4: Don't allow a VMOVP on a dying VPE
irqchip/sifive-plic: Return error code on failure
irqchip/riscv-imsic: Fix output text of base address
irqchip/ocelot: Comment sticky register clearing code
irqchip/ocelot: Fix trigger register address
irqchip: Remove obsolete config ARM_GIC_V3_ITS_PCI
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduling fixes from Borislav Petkov:
- Add PREEMPT_RT maintainers
- Fix another aspect of delayed dequeued tasks wrt determining their
state, i.e., whether they're runnable or blocked
- Handle delayed dequeued tasks and their migration wrt PSI properly
- Fix the situation where a delayed dequeue task gets enqueued into a
new class, which should not happen
- Fix a case where memory allocation would happen while the runqueue
lock is held, which is a no-no
- Do not over-schedule when tasks with shorter slices preempt the
currently running task
- Make sure delayed to deque entities are properly handled before
unthrottling
- Other smaller cleanups and improvements
* tag 'sched_urgent_for_v6.12_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add an entry for PREEMPT_RT.
sched/fair: Fix external p->on_rq users
sched/psi: Fix mistaken CPU pressure indication after corrupted task state bug
sched/core: Dequeue PSI signals for blocked tasks that are delayed
sched: Fix delayed_dequeue vs switched_from_fair()
sched/core: Disable page allocation in task_tick_mm_cid()
sched/deadline: Use hrtick_enabled_dl() before start_hrtick_dl()
sched/eevdf: Fix wakeup-preempt by checking cfs_rq->nr_running
sched: Fix sched_delayed vs cfs_bandwidth
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Pull xfs fixes from Carlos Maiolino:
- Fix integer overflow in xrep_bmap
- Fix stale dealloc punching for COW IO
* tag 'xfs-6.12-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: punch delalloc extents from the COW fork for COW writes
xfs: set IOMAP_F_SHARED for all COW fork allocations
xfs: share more code in xfs_buffered_write_iomap_begin
xfs: support the COW fork in xfs_bmap_punch_delalloc_range
xfs: IOMAP_ZERO and IOMAP_UNSHARE already hold invalidate_lock
xfs: take XFS_MMAPLOCK_EXCL xfs_file_write_zero_eof
xfs: factor out a xfs_file_write_zero_eof helper
iomap: move locking out of iomap_write_delalloc_release
iomap: remove iomap_file_buffered_write_punch_delalloc
iomap: factor out a iomap_last_written_block helper
xfs: fix integer overflow in xrep_bmap
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Pull drm fixes from Dave Airlie:
"Weekly fixes, msm and xe are the two main ones, with a bunch of
scattered fixes including a largish revert in mgag200, then amdgpu,
vmwgfx and scattering of other minor ones.
All seems pretty regular.
msm:
- Display:
- move CRTC resource assignment to atomic_check otherwise to make
consecutive calls to atomic_check() consistent
- fix rounding / sign-extension issues with pclk calculation in
case of DSC
- cleanups to drop incorrect null checks in dpu snapshots
- fix to use kvzalloc in dpu snapshot to avoid allocation issues
in heavily loaded system cases
- Fix to not program merge_3d block if dual LM is not being used
- Fix to not flush merge_3d block if its not enabled otherwise
this leads to false timeouts
- GPU:
- a7xx: add a fence wait before SMMU table update
xe:
- New workaround to Xe2 (Aradhya)
- Fix unbalanced rpm put (Matthew Auld)
- Remove fragile lock optimization (Matthew Brost)
- Fix job release, delegating it to the drm scheduler (Matthew Brost)
- Fix timestamp bit width for Xe2 (Lucas)
- Fix external BO's dma-resv usag (Matthew Brost)
- Fix returning success for timeout in wait_token (Nirmoy)
- Initialize fence to avoid it being detected as signaled (Matthew
Auld)
- Improve cache flush for BMG (Matthew Auld)
- Don't allow hflip for tile4 framebuffer on Xe2 (Juha-Pekka)
amdgpu:
- SR-IOV fix
- CS chunk handling fix
- MES fixes
- SMU13 fixes
amdkfd:
- VRAM usage reporting fix
radeon:
- Fix possible_clones handling
i915:
- Two DP bandwidth related MST fixes
ast:
- Clear EDID on unplugged connectors
host1x:
- Fix boot on Tegra186
- Set DMA parameters
mgag200:
- Revert VBLANK support
panel:
- himax-hx83192: Adjust power and gamma
qaic:
- Sgtable loop fixes
vmwgfx:
- Limit display layout allocatino size
- Handle allocation errors in connector checks
- Clean up KMS code for 2d-only setup
- Report surface-check errors correctly
- Remove NULL test around kvfree()"
* tag 'drm-fixes-2024-10-18' of https://gitlab.freedesktop.org/drm/kernel: (45 commits)
drm/ast: vga: Clear EDID if no display is connected
drm/ast: sil164: Clear EDID if no display is connected
Revert "drm/mgag200: Add vblank support"
drm/amdgpu/swsmu: default to fullscreen 3D profile for dGPUs
drm/i915/display: Don't allow tile4 framebuffer to do hflip on display20 or greater
drm/xe/bmg: improve cache flushing behaviour
drm/xe/xe_sync: initialise ufence.signalled
drm/xe/ufence: ufence can be signaled right after wait_woken
drm/xe: Use bookkeep slots for external BO's in exec IOCTL
drm/xe/query: Increase timestamp width
drm/xe: Don't free job in TDR
drm/xe: Take job list lock in xe_sched_add_pending_job
drm/xe: fix unbalanced rpm put() with declare_wedged()
drm/xe: fix unbalanced rpm put() with fence_fini()
drm/xe/xe2lpg: Extend Wa_15016589081 for xe2lpg
drm/i915/dp_mst: Don't require DSC hblank quirk for a non-DSC compatible mode
drm/i915/dp_mst: Handle error during DSC BW overhead/slice calculation
drm/msm/a6xx+: Insert a fence wait before SMMU table update
drm/msm/dpu: don't always program merge_3d block
drm/msm/dpu: Don't always set merge_3d pending flush
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"28 hotfixes. 13 are cc:stable. 23 are MM.
It is the usual shower of unrelated singletons - please see the
individual changelogs for details"
* tag 'mm-hotfixes-stable-2024-10-17-16-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (28 commits)
maple_tree: add regression test for spanning store bug
maple_tree: correct tree corruption on spanning store
mm/mglru: only clear kswapd_failures if reclaimable
mm/swapfile: skip HugeTLB pages for unuse_vma
selftests: mm: fix the incorrect usage() info of khugepaged
MAINTAINERS: add Jann as memory mapping/VMA reviewer
mm: swap: prevent possible data-race in __try_to_reclaim_swap
mm: khugepaged: fix the incorrect statistics when collapsing large file folios
MAINTAINERS: kasan, kcov: add bugzilla links
mm: don't install PMD mappings when THPs are disabled by the hw/process/vma
mm: huge_memory: add vma_thp_disabled() and thp_disabled_by_hw()
Docs/damon/maintainer-profile: update deprecated awslabs GitHub URLs
Docs/damon/maintainer-profile: add missing '_' suffixes for external web links
maple_tree: check for MA_STATE_BULK on setting wr_rebalance
mm: khugepaged: fix the arguments order in khugepaged_collapse_file trace point
mm/damon/tests/sysfs-kunit.h: fix memory leak in damon_sysfs_test_add_targets()
mm: remove unused stub for can_swapin_thp()
mailmap: add an entry for Andy Chiu
MAINTAINERS: add memory mapping/VMA co-maintainers
fs/proc: fix build with GCC 15 due to -Werror=unterminated-string-initialization
...
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Short summary of fixes pull:
ast:
- Clear EDID on unplugged connectors
host1x:
- Fix boot on Tegra186
- Set DMA parameters
mgag200:
- Revert VBLANK support
panel:
- himax-hx83192: Adjust power and gamma
qaic:
- Sgtable loop fixes
vmwgfx:
- Limit display layout allocatino size
- Handle allocation errors in connector checks
- Clean up KMS code for 2d-only setup
- Report surface-check errors correctly
- Remove NULL test around kvfree()
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20241017115516.GA196624@linux.fritz.box
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes, nothing really stands out:
- Usual HD-audio quirks / device-specific fixes
- Kconfig dependency fix for UM
- A series of minor fixes for SoundWire
- Updates of USB-audio LINE6 contact address"
* tag 'sound-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/conexant - Use cached pin control for Node 0x1d on HP EliteOne 1000 G2
ALSA/hda: intel-sdw-acpi: add support for sdw-manager-list property read
ALSA/hda: intel-sdw-acpi: simplify sdw-master-count property read
ALSA/hda: intel-sdw-acpi: fetch fwnode once in sdw_intel_scan_controller()
ALSA/hda: intel-sdw-acpi: cleanup sdw_intel_scan_controller
ALSA: hda/tas2781: Add new quirk for Lenovo, ASUS, Dell projects
ALSA: scarlett2: Add error check after retrieving PEQ filter values
ALSA: hda/cs8409: Fix possible NULL dereference
sound: Make CONFIG_SND depend on INDIRECT_IOMEM instead of UML
ALSA: line6: update contact information
ALSA: usb-audio: Fix NULL pointer deref in snd_usb_power_domain_set()
ALSA: hda/conexant - Fix audio routing for HP EliteOne 1000 G2
ALSA: hda: Sound support for HP Spectre x360 16 inch model 2024
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Current release - new code bugs:
- eth: mlx5: HWS, don't destroy more bwc queue locks than allocated
Previous releases - regressions:
- ipv4: give an IPv4 dev to blackhole_netdev
- udp: compute L4 checksum as usual when not segmenting the skb
- tcp/dccp: don't use timer_pending() in reqsk_queue_unlink().
- eth: mlx5e: don't call cleanup on profile rollback failure
- eth: microchip: vcap api: fix memory leaks in
vcap_api_encode_rule_test()
- eth: enetc: disable Tx BD rings after they are empty
- eth: macb: avoid 20s boot delay by skipping MDIO bus registration
for fixed-link PHY
Previous releases - always broken:
- posix-clock: fix missing timespec64 check in pc_clock_settime()
- genetlink: hold RCU in genlmsg_mcast()
- mptcp: prevent MPC handshake on port-based signal endpoints
- eth: vmxnet3: fix packet corruption in vmxnet3_xdp_xmit_frame
- eth: stmmac: dwmac-tegra: fix link bring-up sequence
- eth: bcmasp: fix potential memory leak in bcmasp_xmit()
Misc:
- add Andrew Lunn as a co-maintainer of all networking drivers"
* tag 'net-6.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits)
net/mlx5e: Don't call cleanup on profile rollback failure
net/mlx5: Unregister notifier on eswitch init failure
net/mlx5: Fix command bitmask initialization
net/mlx5: Check for invalid vector index on EQ creation
net/mlx5: HWS, use lock classes for bwc locks
net/mlx5: HWS, don't destroy more bwc queue locks than allocated
net/mlx5: HWS, fixed double free in error flow of definer layout
net/mlx5: HWS, removed wrong access to a number of rules variable
mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow
net: ethernet: mtk_eth_soc: fix memory corruption during fq dma init
vmxnet3: Fix packet corruption in vmxnet3_xdp_xmit_frame
net: dsa: vsc73xx: fix reception from VLAN-unaware bridges
net: ravb: Only advertise Rx/Tx timestamps if hardware supports it
net: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()
net: phy: mdio-bcm-unimac: Add BCM6846 support
dt-bindings: net: brcm,unimac-mdio: Add bcm6846-mdio
udp: Compute L4 checksum as usual when not segmenting the skb
genetlink: hold RCU in genlmsg_mcast()
net: dsa: mv88e6xxx: Fix the max_vid definition for the MV88E6361
tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().
...
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Conflicts:
kernel/sched/ext.c
There's a context conflict between this upstream commit:
3fdb9ebcec10 sched_ext: Start schedulers with consistent p->scx.slice values
... and this fix in sched/urgent:
98442f0ccd82 sched: Fix delayed_dequeue vs switched_from_fair()
Resolve it.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Patch series "mm: don't install PMD mappings when THPs are disabled by the
hw/process/vma".
During testing, it was found that we can get PMD mappings in processes
where THP (and more precisely, PMD mappings) are supposed to be disabled.
While it works as expected for anon+shmem, the pagecache is the
problematic bit.
For s390 KVM this currently means that a VM backed by a file located on
filesystem with large folio support can crash when KVM tries accessing the
problematic page, because the readahead logic might decide to use a
PMD-sized THP and faulting it into the page tables will install a PMD
mapping, something that s390 KVM cannot tolerate.
This might also be a problem with HW that does not support PMD mappings,
but I did not try reproducing it.
Fix it by respecting the ways to disable THPs when deciding whether we can
install a PMD mapping. khugepaged should already be taking care of not
collapsing if THPs are effectively disabled for the hw/process/vma.
This patch (of 2):
Add vma_thp_disabled() and thp_disabled_by_hw() helpers to be shared by
shmem_allowable_huge_orders() and __thp_vma_allowable_orders().
[david@redhat.com: rename to vma_thp_disabled(), split out thp_disabled_by_hw() ]
Link: https://lkml.kernel.org/r/20241011102445.934409-2-david@redhat.com
Fixes: 793917d997df ("mm/readahead: Add large folio readahead")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reported-by: Leo Fu <bfu@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: Boqiao Fu <bfu@redhat.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Arnd reported a build failure due to the BUILD_BUG_ON() statement in
alloc_kmem_cache_cpus(). The test
PERCPU_DYNAMIC_EARLY_SIZE < NR_KMALLOC_TYPES * KMALLOC_SHIFT_HIGH * sizeof(struct kmem_cache_cpu)
The factors that increase the right side of the equation:
- PAGE_SIZE > 4KiB increases KMALLOC_SHIFT_HIGH
- For the local_lock_t in kmem_cache_cpu:
- PREEMPT_RT adds an actual lock.
- LOCKDEP increases the size of the lock.
- LOCK_STAT adds additional bytes plus padding to the lockdep
structure.
The net difference with and without PREEMPT_RT is 88 bytes for the
lock_lock_t, 96 bytes for kmem_cache_cpu due to additional padding. This
is enough to exceed the 80KiB limit with 16KiB page size - the 8KiB page
size is fine.
Increase PERCPU_DYNAMIC_SIZE_SHIFT to 13 on configs with PAGE_SIZE larger
than 4KiB and LOCKDEP enabled.
Link: https://lkml.kernel.org/r/20241007143049.gyMpEu89@linutronix.de
Fixes: d8fccd9ca5f9 ("arm64: Allow to enable PREEMPT_RT.")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410020326.iaZIteIx-lkp@intel.com/
Reported-by: Arnd Bergmann <arnd@kernel.org>
Closes: https://lore.kernel.org/20241004095702.637528-1-arnd@kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Pull bcachefs fixes from Kent Overstreet:
- New metadata version inode_has_child_snapshots
This fixes bugs with handling of unlinked inodes + snapshots, in
particular when an inode is reattached after taking a snapshot;
deleted inodes now get correctly cleaned up across snapshots.
- Disk accounting rewrite fixes
- validation fixes for when a device has been removed
- fix journal replay failing with "journal_reclaim_would_deadlock"
- Some more small fixes for erasure coding + device removal
- Assorted small syzbot fixes
* tag 'bcachefs-2024-10-14' of git://evilpiepirate.org/bcachefs: (27 commits)
bcachefs: Fix sysfs warning in fstests generic/730,731
bcachefs: Handle race between stripe reuse, invalidate_stripe_to_dev
bcachefs: Fix kasan splat in new_stripe_alloc_buckets()
bcachefs: Add missing validation for bch_stripe.csum_granularity_bits
bcachefs: Fix missing bounds checks in bch2_alloc_read()
bcachefs: fix uaf in bch2_dio_write_done()
bcachefs: Improve check_snapshot_exists()
bcachefs: Fix bkey_nocow_lock()
bcachefs: Fix accounting replay flags
bcachefs: Fix invalid shift in member_to_text()
bcachefs: Fix bch2_have_enough_devs() for BCH_SB_MEMBER_INVALID
bcachefs: __wait_for_freeing_inode: Switch to wait_bit_queue_entry
bcachefs: Check if stuck in journal_res_get()
closures: Add closure_wait_event_timeout()
bcachefs: Fix state lock involved deadlock
bcachefs: Fix NULL pointer dereference in bch2_opt_to_text
bcachefs: Release transaction before wake up
bcachefs: add check for btree id against max in try read node
bcachefs: Disk accounting device validation fixes
bcachefs: bch2_inode_or_descendents_is_open()
...
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In order to store device DMA parameters, the DMA framework depends on
the device's dma_parms field to point at a valid memory location. Add
backing storage for this in struct host1x_memory_context and point to
it.
Reported-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240916133320.368620-1-thierry.reding@gmail.com
(cherry picked from commit b4ad4ef374d66cc8df3188bb1ddb65bce5fc9e50)
Signed-off-by: Thierry Reding <treding@nvidia.com>
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Currently iomap_file_buffered_write_punch_delalloc can be called from
XFS either with the invalidate lock held or not. To fix this while
keeping the locking in the file system and not the iomap library
code we'll need to life the locking up into the file system.
To prepare for that, open code iomap_file_buffered_write_punch_delalloc
in the only caller, and instead export iomap_write_delalloc_release.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Split out a pice of logic from iomap_file_buffered_write_punch_delalloc
that is useful for all iomap_end implementations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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The DisCo for SoundWire 2.0 spec adds support for a new
sdw-manager-list property. Add it in backwards-compatible mode with
'sdw-master-count', which assumed that all links between 0..count-1
exist.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20241001070611.63288-5-yung-chuan.liao@linux.intel.com
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commit 223baf9d17f25 ("sched: Fix performance regression introduced by mm_cid")
introduced a per-mm/cpu current concurrency id (mm_cid), which keeps
a reference to the concurrency id allocated for each CPU. This reference
expires shortly after a 100ms delay.
These per-CPU references keep the per-mm-cid data cache-local in
situations where threads are running at least once on each CPU within
each 100ms window, thus keeping the per-cpu reference alive.
However, intermittent workloads behaving in bursts spaced by more than
100ms on each CPU exhibit bad cache locality and degraded performance
compared to purely per-cpu data indexing, because concurrency IDs are
allocated over various CPUs and cores, therefore losing cache locality
of the associated data.
Introduce the following changes to improve per-mm-cid cache locality:
- Add a "recent_cid" field to the per-mm/cpu mm_cid structure to keep
track of which mm_cid value was last used, and use it as a hint to
attempt re-allocating the same concurrency ID the next time this
mm/cpu needs to allocate a concurrency ID,
- Add a per-mm CPUs allowed mask, which keeps track of the union of
CPUs allowed for all threads belonging to this mm. This cpumask is
only set during the lifetime of the mm, never cleared, so it
represents the union of all the CPUs allowed since the beginning of
the mm lifetime (note that the mm_cpumask() is really arch-specific
and tailored to the TLB flush needs, and is thus _not_ a viable
approach for this),
- Add a per-mm nr_cpus_allowed to keep track of the weight of the
per-mm CPUs allowed mask (for fast access),
- Add a per-mm max_nr_cid to keep track of the highest number of
concurrency IDs allocated for the mm. This is used for expanding the
concurrency ID allocation within the upper bound defined by:
min(mm->nr_cpus_allowed, mm->mm_users)
When the next unused CID value reaches this threshold, stop trying
to expand the cid allocation and use the first available cid value
instead.
Spreading allocation to use all the cid values within the range
[ 0, min(mm->nr_cpus_allowed, mm->mm_users) - 1 ]
improves cache locality while preserving mm_cid compactness within the
expected user limits,
- In __mm_cid_try_get, only return cid values within the range
[ 0, mm->nr_cpus_allowed ] rather than [ 0, nr_cpu_ids ]. This
prevents allocating cids above the number of allowed cpus in
rare scenarios where cid allocation races with a concurrent
remote-clear of the per-mm/cpu cid. This improvement is made
possible by the addition of the per-mm CPUs allowed mask,
- In sched_mm_cid_migrate_to, use mm->nr_cpus_allowed rather than
t->nr_cpus_allowed. This criterion was really meant to compare
the number of mm->mm_users to the number of CPUs allowed for the
entire mm. Therefore, the prior comparison worked fine when all
threads shared the same CPUs allowed mask, but not so much in
scenarios where those threads have different masks (e.g. each
thread pinned to a single CPU). This improvement is made
possible by the addition of the per-mm CPUs allowed mask.
* Benchmarks
Each thread increments 16kB worth of 8-bit integers in bursts, with
a configurable delay between each thread's execution. Each thread run
one after the other (no threads run concurrently). The order of
thread execution in the sequence is random. The thread execution
sequence begins again after all threads have executed. The 16kB areas
are allocated with rseq_mempool and indexed by either cpu_id, mm_cid
(not cache-local), or cache-local mm_cid. Each thread is pinned to its
own core.
Testing configurations:
8-core/1-L3: Use 8 cores within a single L3
24-core/24-L3: Use 24 cores, 1 core per L3
192-core/24-L3: Use 192 cores (all cores in the system)
384-thread/24-L3: Use 384 HW threads (all HW threads in the system)
Intermittent workload delays between threads: 200ms, 10ms.
Hardware:
CPU(s): 384
On-line CPU(s) list: 0-383
Vendor ID: AuthenticAMD
Model name: AMD EPYC 9654 96-Core Processor
Thread(s) per core: 2
Core(s) per socket: 96
Socket(s): 2
Caches (sum of all):
L1d: 6 MiB (192 instances)
L1i: 6 MiB (192 instances)
L2: 192 MiB (192 instances)
L3: 768 MiB (24 instances)
Each result is an average of 5 test runs. The cache-local speedup
is calculated as: (cache-local mm_cid) / (mm_cid).
Intermittent workload delay: 200ms
per-cpu mm_cid cache-local mm_cid cache-local speedup
(ns) (ns) (ns)
8-core/1-L3 1374 19289 1336 14.4x
24-core/24-L3 2423 26721 1594 16.7x
192-core/24-L3 2291 15826 2153 7.3x
384-thread/24-L3 1874 13234 1907 6.9x
Intermittent workload delay: 10ms
per-cpu mm_cid cache-local mm_cid cache-local speedup
(ns) (ns) (ns)
8-core/1-L3 662 756 686 1.1x
24-core/24-L3 1378 3648 1035 3.5x
192-core/24-L3 1439 10833 1482 7.3x
384-thread/24-L3 1503 10570 1556 6.8x
[ This deprecates the prior "sched: NUMA-aware per-memory-map concurrency IDs"
patch series with a simpler and more general approach. ]
[ This patch applies on top of v6.12-rc1. ]
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/lkml/20240823185946.418340-1-mathieu.desnoyers@efficios.com/
|
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Sync with sched/urgent to avoid conflicts.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
|
|
Sean noted that ever since commit 152e11f6df29 ("sched/fair: Implement
delayed dequeue") KVM's preemption notifiers have started
mis-classifying preemption vs blocking.
Notably p->on_rq is no longer sufficient to determine if a task is
runnable or blocked -- the aforementioned commit introduces tasks that
remain on the runqueue even through they will not run again, and
should be considered blocked for many cases.
Add the task_is_runnable() helper to classify things and audit all
external users of the p->on_rq state. Also add a few comments.
Fixes: 152e11f6df29 ("sched/fair: Implement delayed dequeue")
Reported-by: Sean Christopherson <seanjc@google.com>
Tested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20241010091843.GK33184@noisy.programming.kicks-ass.net
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Fix the build warnings when CONFIG_FSL_ENETC_MDIO is not enabled.
The detailed warnings are shown as follows.
include/linux/fsl/enetc_mdio.h:62:18: warning: no previous prototype for function 'enetc_hw_alloc' [-Wmissing-prototypes]
62 | struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs)
| ^
include/linux/fsl/enetc_mdio.h:62:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
62 | struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs)
| ^
| static
8 warnings generated.
Fixes: 6517798dd343 ("enetc: Make MDIO accessors more generic and export to include/linux/fsl")
Cc: stable@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410102136.jQHZOcS4-lkp@intel.com/
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://patch.msgid.link/20241011030103.392362-1-wei.fang@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Pull NFS client fixes from Anna Schumaker:
"Localio Bugfixes:
- remove duplicated include in localio.c
- fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
- fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
- fix nfsd_file tracepoints to handle NULL rqstp pointers
Other Bugfixes:
- fix program selection loop in svc_process_common
- fix integer overflow in decode_rc_list()
- prevent NULL-pointer dereference in nfs42_complete_copies()
- fix CB_RECALL performance issues when using a large number of
delegations"
* tag 'nfs-for-6.12-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: remove revoked delegation from server's delegation list
nfsd/localio: fix nfsd_file tracepoints to handle NULL rqstp
nfs_common: fix Kconfig for NFS_COMMON_LOCALIO_SUPPORT
nfs_common: fix race in NFS calls to nfsd_file_put_local() and nfsd_serv_put()
NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
SUNRPC: Fix integer overflow in decode_rc_list()
sunrpc: fix prog selection loop in svc_process_common
nfs: Remove duplicated include in localio.c
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With KASAN and PREEMPT_RT enabled, calling task_work_add() in
task_tick_mm_cid() may cause the following splat.
[ 63.696416] BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48
[ 63.696416] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 610, name: modprobe
[ 63.696416] preempt_count: 10001, expected: 0
[ 63.696416] RCU nest depth: 1, expected: 1
This problem is caused by the following call trace.
sched_tick() [ acquire rq->__lock ]
-> task_tick_mm_cid()
-> task_work_add()
-> __kasan_record_aux_stack()
-> kasan_save_stack()
-> stack_depot_save_flags()
-> alloc_pages_mpol_noprof()
-> __alloc_pages_noprof()
-> get_page_from_freelist()
-> rmqueue()
-> rmqueue_pcplist()
-> __rmqueue_pcplist()
-> rmqueue_bulk()
-> rt_spin_lock()
The rq lock is a raw_spinlock_t. We can't sleep while holding
it. IOW, we can't call alloc_pages() in stack_depot_save_flags().
The task_tick_mm_cid() function with its task_work_add() call was
introduced by commit 223baf9d17f2 ("sched: Fix performance regression
introduced by mm_cid") in v6.4 kernel.
Fortunately, there is a kasan_record_aux_stack_noalloc() variant that
calls stack_depot_save_flags() while not allowing it to allocate
new pages. To allow task_tick_mm_cid() to use task_work without
page allocation, a new TWAF_NO_ALLOC flag is added to enable calling
kasan_record_aux_stack_noalloc() instead of kasan_record_aux_stack()
if set. The task_tick_mm_cid() function is modified to add this new flag.
The possible downside is the missing stack trace in a KASAN report due
to new page allocation required when task_work_add_noallloc() is called
which should be rare.
Fixes: 223baf9d17f2 ("sched: Fix performance regression introduced by mm_cid")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20241010014432.194742-1-longman@redhat.com
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Cancelling an rx command is signalled using bit 14 of the rx DMA status
register and not bit 11.
This bit is currently unused, but this error becomes apparent, for
example, when tracing the status register when closing the port.
Fixes: eddac5af0654 ("soc: qcom: Add GENI based QUP Wrapper driver")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20241009145110.16847-7-johan+linaro@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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Add a closure version of wait_event_timeout(), with the same semantics.
The closure version is useful because unlike wait_event(), it allows
blocking code to run in the conditional expression.
Cc: Coly Li <colyli@suse.de>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
|
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This reverts commit eab0af905bfc3e9c05da2ca163d76a1513159aa4.
There is no existing user of those flags. PF_MEMALLOC_NOWARN is dangerous
because a nested allocation context can use GFP_NOFAIL which could cause
unexpected failure. Such a code would be hard to maintain because it
could be deeper in the call chain.
PF_MEMALLOC_NORECLAIM has been added even when it was pointed out [1] that
such a allocation contex is inherently unsafe if the context doesn't fully
control all allocations called from this context.
While PF_MEMALLOC_NOWARN is not dangerous the way PF_MEMALLOC_NORECLAIM is
it doesn't have any user and as Matthew has pointed out we are running out
of those flags so better reclaim it without any real users.
[1] https://lore.kernel.org/all/ZcM0xtlKbAOFjv5n@tiehlicka/
Link: https://lkml.kernel.org/r/20240926172940.167084-3-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: James Morris <jmorris@namei.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Serge E. Hallyn <serge@hallyn.com>
Cc: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
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Patch series "remove PF_MEMALLOC_NORECLAIM" v3.
This patch (of 2):
bch2_new_inode relies on PF_MEMALLOC_NORECLAIM to try to allocate a new
inode to achieve GFP_NOWAIT semantic while holding locks. If this
allocation fails it will drop locks and use GFP_NOFS allocation context.
We would like to drop PF_MEMALLOC_NORECLAIM because it is really
dangerous to use if the caller doesn't control the full call chain with
this flag set. E.g. if any of the function down the chain needed
GFP_NOFAIL request the PF_MEMALLOC_NORECLAIM would override this and
cause unexpected failure.
While this is not the case in this particular case using the scoped gfp
semantic is not really needed bacause we can easily pus the allocation
context down the chain without too much clutter.
[akpm@linux-foundation.org: fix kerneldoc warnings]
Link: https://lkml.kernel.org/r/20240926172940.167084-1-mhocko@kernel.org
Link: https://lkml.kernel.org/r/20240926172940.167084-2-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz> # For vfs changes
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: James Morris <jmorris@namei.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Serge E. Hallyn <serge@hallyn.com>
Cc: Yafang Shao <laoar.shao@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
|
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Kunkun Jiang reported that there is a small window of opportunity for
userspace to force a change of affinity for a VPE while the VPE has already
been unmapped, but the corresponding doorbell interrupt still visible in
/proc/irq/.
Plug the race by checking the value of vmapp_count, which tracks whether
the VPE is mapped ot not, and returning an error in this case.
This involves making vmapp_count common to both GICv4.1 and its v4.0
ancestor.
Fixes: 64edfaa9a234 ("irqchip/gic-v4.1: Implement the v4.1 flavour of VMAPP")
Reported-by: Kunkun Jiang <jiangkunkun@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/c182ece6-2ba0-ce4f-3404-dba7a3ab6c52@huawei.com
Link: https://lore.kernel.org/all/20241002204959.2051709-1-maz@kernel.org
|
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bit_wait_io_timeout has been unused since 2016's
commit 62906027091f ("mm: add PageWaiters indicating tasks are waiting for a page bit")
Remove it.
Signed-off-by: "Dr. David Alan Gilbert" <linux@treblig.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Link: https://lore.kernel.org/r/20241001234016.231696-1-linux@treblig.org
|
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__HAVE_THREAD_FUNCTIONS could be defined by architectures wishing to
provide their own task_thread_info(), task_stack_page(),
setup_thread_stack() and end_of_stack() hooks.
Commit cf8e8658100d ("arch: Remove Itanium (IA-64) architecture")
removed the last upstream consumer of __HAVE_THREAD_FUNCTIONS, so change
the remaining !CONFIG_THREAD_INFO_IN_TASK && !__HAVE_THREAD_FUNCTIONS
conditionals to only check for the former case.
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lkml.kernel.org/r/20240930050945.30304-2-ddiss@suse.de
|
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It is not currently possible to wait wait_var_event for an io_schedule()
style wait. This patch adds wait_var_event_io() for that purpose.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240925053405.3960701-7-neilb@suse.de
|
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Sometimes we need to wait for a condition to be true which must be
testing while holding a lock. Correspondingly the condition is made
true while holding the lock and the wake up is sent under the lock.
This patch provides wake and wait interfaces which can be used for this
situation when the lock is a mutex or a spinlock, or any other lock for
which there are foo_lock() and foo_unlock() functions.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240925053405.3960701-6-neilb@suse.de
|
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There are common patterns in the kernel of using test_and_clear_bit()
before wake_up_bit(), and atomic_dec_and_test() before wake_up_var().
These combinations don't need extra barriers but sometimes include them
unnecessarily.
To help avoid the unnecessary barriers and to help discourage the
general use of wake_up_bit/var (which is a fragile interface) introduce
two combined functions which implement these patterns.
Also add store_release_wake_up() which supports the task of simply
setting a non-atomic variable and sending a wakeup. This pattern
requires barriers which are often omitted.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240925053405.3960701-5-neilb@suse.de
|
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wake_up_var(), wait_var_event() and related interfaces are not
documented but have important ordering requirements. This patch adds
documentation and makes these requirements explicit.
The return values for those wait_var_event_* functions which return a
value are documented. Note that these are, perhaps surprisingly,
sometimes different from comparable wait_on_bit() functions.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240925053405.3960701-4-neilb@suse.de
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This patch revises the documention for wake_up_bit(),
clear_and_wake_up_bit(), and all the wait_on_bit() family of functions.
The new documentation places less emphasis on the pool of waitqueues
used (an implementation detail) and focuses instead on details of how
the functions behave.
The barriers included in the wait functions and clear_and_wake_up_bit()
and those required for wake_up_bit() are spelled out more clearly.
The error statuses returned are given explicitly.
The fact that the wait_on_bit_lock() function sets the bit is made more
obvious.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240925053405.3960701-3-neilb@suse.de
|
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wake_up_bit() currently allows a "void *". While this isn't strictly a
problem as the address is never dereferenced, it is inconsistent with
the corresponding wait_on_bit() which requires "unsigned long *" and
does dereference the pointer.
Any code that needs to wait for a change in something other than an
unsigned long would be better served by wake_up_var()/wait_var_event().
This patch changes all related "void *" to "unsigned long *".
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240925053405.3960701-2-neilb@suse.de
|
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two cpufreq issues, one in the core and one in the
intel_pstate driver:
- Fix CPU device node reference counting in the cpufreq core (Miquel
Sabaté Solà)
- Turn the spinlock used by the intel_pstate driver in hard IRQ
context into a raw one to prevent the driver from crashing when
PREEMPT_RT is enabled (Uwe Kleine-König)"
* tag 'pm-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: Avoid a bad reference count on CPU node
cpufreq: intel_pstate: Make hwp_notify_lock a raw spinlock
|
|
Pull drm fixes from Dave Airlie:
"Weekly fixes, xe and amdgpu lead the way, with panthor, and few core
components getting various fixes. Nothing seems too out of the
ordinary.
atomic:
- Use correct type when reading damage rectangles
display:
- Fix kernel docs
dp-mst:
- Fix DSC decompression detection
hdmi:
- Fix infoframe size
sched:
- Update maintainers
- Fix race condition whne queueing up jobs
- Fix locking in drm_sched_entity_modify_sched()
- Fix pointer deref if entity queue changes
sysfb:
- Disable sysfb if framebuffer parent device is unknown
amdgpu:
- DML2 fix
- DSC fix
- Dispclk fix
- eDP HDR fix
- IPS fix
- TBT fix
i915:
- One fix for bitwise and logical "and" mixup in PM code
xe:
- Restore pci state on resume
- Fix locking on submission, queue and vm
- Fix UAF on queue destruction
- Fix resource release on freq init error path
- Use rw_semaphore to reduce contention on ASID->VM lookup
- Fix steering for media on Xe2_HPM
- Tuning updates to Xe2
- Resume TDR after GT reset to prevent jobs running forever
- Move id allocation to avoid userspace using a guessed number to
trigger UAF
- Fix OA stream close preventing pbatch buffers to complete
- Fix NPD when migrating memory on LNL
- Fix memory leak when aborting binds
panthor:
- Fix locking
- Set FOP_UNSIGNED_OFFSET in fops instance
- Acquire lock in panthor_vm_prepare_map_op_ctx()
- Avoid uninitialized variable in tick_ctx_cleanup()
- Do not block scheduler queue if work is pending
- Do not add write fences to the shared BOs
vbox:
- Fix VLA handling"
* tag 'drm-fixes-2024-10-04' of https://gitlab.freedesktop.org/drm/kernel: (41 commits)
drm/xe: Fix memory leak when aborting binds
drm/xe: Prevent null pointer access in xe_migrate_copy
drm/xe/oa: Don't reset OAC_CONTEXT_ENABLE on OA stream close
drm/xe/queue: move xa_alloc to prevent UAF
drm/xe/vm: move xa_alloc to prevent UAF
drm/xe: Clean up VM / exec queue file lock usage.
drm/xe: Resume TDR after GT reset
drm/xe/xe2: Add performance tuning for L3 cache flushing
drm/xe/xe2: Extend performance tuning to media GT
drm/xe/mcr: Use Xe2_LPM steering tables for Xe2_HPM
drm/xe: Use helper for ASID -> VM in GPU faults and access counters
drm/xe: Convert to USM lock to rwsem
drm/xe: use devm_add_action_or_reset() helper
drm/xe: fix UAF around queue destruction
drm/xe/guc_submit: add missing locking in wedged_fini
drm/xe: Restore pci state upon resume
drm/amd/display: Fix system hang while resume with TBT monitor
drm/amd/display: Enable idle workqueue for more IPS modes
drm/amd/display: Add HDR workaround for specific eDP
drm/amd/display: avoid set dispclk to 0
...
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify fixes from Jan Kara:
"Fixes for an inotify deadlock and a data race in fsnotify"
* tag 'fsnotify_for_v6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
inotify: Fix possible deadlock in fsnotify_destroy_mark
fsnotify: Avoid data race between fsnotify_recalc_mask() and fsnotify_object_watched()
|
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Pull close_range() fix from Al Viro:
"Fix the logic in descriptor table trimming"
* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
close_range(): fix the logics in descriptor table trimming
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Add nfs_to_nfsd_file_put_local() interface to fix race with nfsd
module unload. Similarly, use RCU around nfs_open_local_fh()'s error
path call to nfs_to->nfsd_serv_put(). Holding RCU ensures that NFS
will safely _call and return_ from its nfs_to calls into the NFSD
functions nfsd_file_put_local() and nfsd_serv_put().
Otherwise, if RCU isn't used then there is a narrow window when NFS's
reference for the nfsd_file and nfsd_serv are dropped and the NFSD
module could be unloaded, which could result in a crash from the
return instruction for either nfs_to->nfsd_file_put_local() or
nfs_to->nfsd_serv_put().
Reported-by: NeilBrown <neilb@suse.de>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
|
|
On the node of an NFS client, some files saved in the mountpoint of the
NFS server were copied to another location of the same NFS server.
Accidentally, the nfs42_complete_copies() got a NULL-pointer dereference
crash with the following syslog:
[232064.838881] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116
[232064.839360] NFSv4: state recovery failed for open file nfs/pvc-12b5200d-cd0f-46a3-b9f0-af8f4fe0ef64.qcow2, error = -116
[232066.588183] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058
[232066.588586] Mem abort info:
[232066.588701] ESR = 0x0000000096000007
[232066.588862] EC = 0x25: DABT (current EL), IL = 32 bits
[232066.589084] SET = 0, FnV = 0
[232066.589216] EA = 0, S1PTW = 0
[232066.589340] FSC = 0x07: level 3 translation fault
[232066.589559] Data abort info:
[232066.589683] ISV = 0, ISS = 0x00000007
[232066.589842] CM = 0, WnR = 0
[232066.589967] user pgtable: 64k pages, 48-bit VAs, pgdp=00002000956ff400
[232066.590231] [0000000000000058] pgd=08001100ae100003, p4d=08001100ae100003, pud=08001100ae100003, pmd=08001100b3c00003, pte=0000000000000000
[232066.590757] Internal error: Oops: 96000007 [#1] SMP
[232066.590958] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm vhost_net vhost vhost_iotlb tap tun ipt_rpfilter xt_multiport ip_set_hash_ip ip_set_hash_net xfrm_interface xfrm6_tunnel tunnel4 tunnel6 esp4 ah4 wireguard libcurve25519_generic veth xt_addrtype xt_set nf_conntrack_netlink ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_bitmap_port ip_set_hash_ipport dummy ip_set ip_vs_sh ip_vs_wrr ip_vs_rr ip_vs iptable_filter sch_ingress nfnetlink_cttimeout vport_gre ip_gre ip_tunnel gre vport_geneve geneve vport_vxlan vxlan ip6_udp_tunnel udp_tunnel openvswitch nf_conncount dm_round_robin dm_service_time dm_multipath xt_nat xt_MASQUERADE nft_chain_nat nf_nat xt_mark xt_conntrack xt_comment nft_compat nft_counter nf_tables nfnetlink ocfs2 ocfs2_nodemanager ocfs2_stackglue iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ipmi_ssif nbd overlay 8021q garp mrp bonding tls rfkill sunrpc ext4 mbcache jbd2
[232066.591052] vfat fat cas_cache cas_disk ses enclosure scsi_transport_sas sg acpi_ipmi ipmi_si ipmi_devintf ipmi_msghandler ip_tables vfio_pci vfio_pci_core vfio_virqfd vfio_iommu_type1 vfio dm_mirror dm_region_hash dm_log dm_mod nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc fuse xfs libcrc32c ast drm_vram_helper qla2xxx drm_kms_helper syscopyarea crct10dif_ce sysfillrect ghash_ce sysimgblt sha2_ce fb_sys_fops cec sha256_arm64 sha1_ce drm_ttm_helper ttm nvme_fc igb sbsa_gwdt nvme_fabrics drm nvme_core i2c_algo_bit i40e scsi_transport_fc megaraid_sas aes_neon_bs
[232066.596953] CPU: 6 PID: 4124696 Comm: 10.253.166.125- Kdump: loaded Not tainted 5.15.131-9.cl9_ocfs2.aarch64 #1
[232066.597356] Hardware name: Great Wall .\x93\x8e...RF6260 V5/GWMSSE2GL1T, BIOS T656FBE_V3.0.18 2024-01-06
[232066.597721] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[232066.598034] pc : nfs4_reclaim_open_state+0x220/0x800 [nfsv4]
[232066.598327] lr : nfs4_reclaim_open_state+0x12c/0x800 [nfsv4]
[232066.598595] sp : ffff8000f568fc70
[232066.598731] x29: ffff8000f568fc70 x28: 0000000000001000 x27: ffff21003db33000
[232066.599030] x26: ffff800005521ae0 x25: ffff0100f98fa3f0 x24: 0000000000000001
[232066.599319] x23: ffff800009920008 x22: ffff21003db33040 x21: ffff21003db33050
[232066.599628] x20: ffff410172fe9e40 x19: ffff410172fe9e00 x18: 0000000000000000
[232066.599914] x17: 0000000000000000 x16: 0000000000000004 x15: 0000000000000000
[232066.600195] x14: 0000000000000000 x13: ffff800008e685a8 x12: 00000000eac0c6e6
[232066.600498] x11: 0000000000000000 x10: 0000000000000008 x9 : ffff8000054e5828
[232066.600784] x8 : 00000000ffffffbf x7 : 0000000000000001 x6 : 000000000a9eb14a
[232066.601062] x5 : 0000000000000000 x4 : ffff70ff8a14a800 x3 : 0000000000000058
[232066.601348] x2 : 0000000000000001 x1 : 54dce46366daa6c6 x0 : 0000000000000000
[232066.601636] Call trace:
[232066.601749] nfs4_reclaim_open_state+0x220/0x800 [nfsv4]
[232066.601998] nfs4_do_reclaim+0x1b8/0x28c [nfsv4]
[232066.602218] nfs4_state_manager+0x928/0x10f0 [nfsv4]
[232066.602455] nfs4_run_state_manager+0x78/0x1b0 [nfsv4]
[232066.602690] kthread+0x110/0x114
[232066.602830] ret_from_fork+0x10/0x20
[232066.602985] Code: 1400000d f9403f20 f9402e61 91016003 (f9402c00)
[232066.603284] SMP: stopping secondary CPUs
[232066.606936] Starting crashdump kernel...
[232066.607146] Bye!
Analysing the vmcore, we know that nfs4_copy_state listed by destination
nfs_server->ss_copies was added by the field copies in handle_async_copy(),
and we found a waiting copy process with the stack as:
PID: 3511963 TASK: ffff710028b47e00 CPU: 0 COMMAND: "cp"
#0 [ffff8001116ef740] __switch_to at ffff8000081b92f4
#1 [ffff8001116ef760] __schedule at ffff800008dd0650
#2 [ffff8001116ef7c0] schedule at ffff800008dd0a00
#3 [ffff8001116ef7e0] schedule_timeout at ffff800008dd6aa0
#4 [ffff8001116ef860] __wait_for_common at ffff800008dd166c
#5 [ffff8001116ef8e0] wait_for_completion_interruptible at ffff800008dd1898
#6 [ffff8001116ef8f0] handle_async_copy at ffff8000055142f4 [nfsv4]
#7 [ffff8001116ef970] _nfs42_proc_copy at ffff8000055147c8 [nfsv4]
#8 [ffff8001116efa80] nfs42_proc_copy at ffff800005514cf0 [nfsv4]
#9 [ffff8001116efc50] __nfs4_copy_file_range.constprop.0 at ffff8000054ed694 [nfsv4]
The NULL-pointer dereference was due to nfs42_complete_copies() listed
the nfs_server->ss_copies by the field ss_copies of nfs4_copy_state.
So the nfs4_copy_state address ffff0100f98fa3f0 was offset by 0x10 and
the data accessed through this pointer was also incorrect. Generally,
the ordered list nfs4_state_owner->so_states indicate open(O_RDWR) or
open(O_WRITE) states are reclaimed firstly by nfs4_reclaim_open_state().
When destination state reclaim is failed with NFS_STATE_RECOVERY_FAILED
and copies are not deleted in nfs_server->ss_copies, the source state
may be passed to the nfs42_complete_copies() process earlier, resulting
in this crash scene finally. To solve this issue, we add a list_head
nfs_server->ss_src_copies for a server-to-server copy specially.
Fixes: 0e65a32c8a56 ("NFS: handle source server reboot")
Signed-off-by: Yanjun Zhang <zhangyanjun@cestc.cn>
Reviewed-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from ieee802154, bluetooth and netfilter.
Current release - regressions:
- eth: mlx5: fix wrong reserved field in hca_cap_2 in mlx5_ifc
- eth: am65-cpsw: fix forever loop in cleanup code
Current release - new code bugs:
- eth: mlx5: HWS, fixed double-free in error flow of creating SQ
Previous releases - regressions:
- core: avoid potential underflow in qdisc_pkt_len_init() with UFO
- core: test for not too small csum_start in virtio_net_hdr_to_skb()
- vrf: revert "vrf: remove unnecessary RCU-bh critical section"
- bluetooth:
- fix uaf in l2cap_connect
- fix possible crash on mgmt_index_removed
- dsa: improve shutdown sequence
- eth: mlx5e: SHAMPO, fix overflow of hd_per_wq
- eth: ip_gre: fix drops of small packets in ipgre_xmit
Previous releases - always broken:
- core: fix gso_features_check to check for both
dev->gso_{ipv4_,}max_size
- core: fix tcp fraglist segmentation after pull from frag_list
- netfilter: nf_tables: prevent nf_skb_duplicated corruption
- sctp: set sk_state back to CLOSED if autobind fails in
sctp_listen_start
- mac802154: fix potential RCU dereference issue in
mac802154_scan_worker
- eth: fec: restart PPS after link state change"
* tag 'net-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (48 commits)
sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start
dt-bindings: net: xlnx,axi-ethernet: Add missing reg minItems
doc: net: napi: Update documentation for napi_schedule_irqoff
net/ncsi: Disable the ncsi work before freeing the associated structure
net: phy: qt2025: Fix warning: unused import DeviceId
gso: fix udp gso fraglist segmentation after pull from frag_list
bridge: mcast: Fail MDB get request on empty entry
vrf: revert "vrf: Remove unnecessary RCU-bh critical section"
net: ethernet: ti: am65-cpsw: Fix forever loop in cleanup code
net: phy: realtek: Check the index value in led_hw_control_get
ppp: do not assume bh is held in ppp_channel_bridge_input()
selftests: rds: move include.sh to TEST_FILES
net: test for not too small csum_start in virtio_net_hdr_to_skb()
net: gso: fix tcp fraglist segmentation after pull from frag_list
ipv4: ip_gre: Fix drops of small packets in ipgre_xmit
net: stmmac: dwmac4: extend timeout for VLAN Tag register busy bit check
net: add more sanity checks to qdisc_pkt_len_init()
net: avoid potential underflow in qdisc_pkt_len_init() with UFO
net: ethernet: ti: cpsw_ale: Fix warning on some platforms
net: microchip: Make FDMA config symbol invisible
...
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
"vfs:
- Ensure that iter_folioq_get_pages() advances to the next slot
otherwise it will end up using the same folio with an out-of-bound
offset.
iomap:
- Dont unshare delalloc extents which can't be reflinked, and thus
can't be shared.
- Constrain the file range passed to iomap_file_unshare() directly in
iomap instead of requiring the callers to do it.
netfs:
- Use folioq_count instead of folioq_nr_slot to prevent an
unitialized value warning in netfs_clear_buffer().
- Fix missing wakeup after issuing writes by scheduling the write
collector only if all the subrequest queues are empty and thus no
writes are pending.
- Fix two minor documentation bugs"
* tag 'vfs-6.12-rc2.fixes.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
iomap: constrain the file range passed to iomap_file_unshare
iomap: don't bother unsharing delalloc extents
netfs: Fix missing wakeup after issuing writes
Documentation: add missing folio_queue entry
folio_queue: fix documentation
netfs: Fix a KMSAN uninit-value error in netfs_clear_buffer
iov_iter: fix advancing slot in iter_folioq_get_pages()
|
|
syzbot was able to trigger this warning [1], after injecting a
malicious packet through af_packet, setting skb->csum_start and thus
the transport header to an incorrect value.
We can at least make sure the transport header is after
the end of the network header (with a estimated minimal size).
[1]
[ 67.873027] skb len=4096 headroom=16 headlen=14 tailroom=0
mac=(-1,-1) mac_len=0 net=(16,-6) trans=10
shinfo(txflags=0 nr_frags=1 gso(size=0 type=0 segs=0))
csum(0xa start=10 offset=0 ip_summed=3 complete_sw=0 valid=0 level=0)
hash(0x0 sw=0 l4=0) proto=0x0800 pkttype=0 iif=0
priority=0x0 mark=0x0 alloc_cpu=10 vlan_all=0x0
encapsulation=0 inner(proto=0x0000, mac=0, net=0, trans=0)
[ 67.877172] dev name=veth0_vlan feat=0x000061164fdd09e9
[ 67.877764] sk family=17 type=3 proto=0
[ 67.878279] skb linear: 00000000: 00 00 10 00 00 00 00 00 0f 00 00 00 08 00
[ 67.879128] skb frag: 00000000: 0e 00 07 00 00 00 28 00 08 80 1c 00 04 00 00 02
[ 67.879877] skb frag: 00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.880647] skb frag: 00000020: 00 00 02 00 00 00 08 00 1b 00 00 00 00 00 00 00
[ 67.881156] skb frag: 00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.881753] skb frag: 00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.882173] skb frag: 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.882790] skb frag: 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.883171] skb frag: 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.883733] skb frag: 00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.884206] skb frag: 00000090: 00 00 00 00 00 00 00 00 00 00 69 70 76 6c 61 6e
[ 67.884704] skb frag: 000000a0: 31 00 00 00 00 00 00 00 00 00 2b 00 00 00 00 00
[ 67.885139] skb frag: 000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.885677] skb frag: 000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.886042] skb frag: 000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.886408] skb frag: 000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.887020] skb frag: 000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 67.887384] skb frag: 00000100: 00 00
[ 67.887878] ------------[ cut here ]------------
[ 67.887908] offset (-6) >= skb_headlen() (14)
[ 67.888445] WARNING: CPU: 10 PID: 2088 at net/core/dev.c:3332 skb_checksum_help (net/core/dev.c:3332 (discriminator 2))
[ 67.889353] Modules linked in: macsec macvtap macvlan hsr wireguard curve25519_x86_64 libcurve25519_generic libchacha20poly1305 chacha_x86_64 libchacha poly1305_x86_64 dummy bridge sr_mod cdrom evdev pcspkr i2c_piix4 9pnet_virtio 9p 9pnet netfs
[ 67.890111] CPU: 10 UID: 0 PID: 2088 Comm: b363492833 Not tainted 6.11.0-virtme #1011
[ 67.890183] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 67.890309] RIP: 0010:skb_checksum_help (net/core/dev.c:3332 (discriminator 2))
[ 67.891043] Call Trace:
[ 67.891173] <TASK>
[ 67.891274] ? __warn (kernel/panic.c:741)
[ 67.891320] ? skb_checksum_help (net/core/dev.c:3332 (discriminator 2))
[ 67.891333] ? report_bug (lib/bug.c:180 lib/bug.c:219)
[ 67.891348] ? handle_bug (arch/x86/kernel/traps.c:239)
[ 67.891363] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))
[ 67.891372] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
[ 67.891388] ? skb_checksum_help (net/core/dev.c:3332 (discriminator 2))
[ 67.891399] ? skb_checksum_help (net/core/dev.c:3332 (discriminator 2))
[ 67.891416] ip_do_fragment (net/ipv4/ip_output.c:777 (discriminator 1))
[ 67.891448] ? __ip_local_out (./include/linux/skbuff.h:1146 ./include/net/l3mdev.h:196 ./include/net/l3mdev.h:213 net/ipv4/ip_output.c:113)
[ 67.891459] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:200)
[ 67.891470] ? ip_route_output_flow (./arch/x86/include/asm/preempt.h:84 (discriminator 13) ./include/linux/rcupdate.h:96 (discriminator 13) ./include/linux/rcupdate.h:871 (discriminator 13) net/ipv4/route.c:2625 (discriminator 13) ./include/net/route.h:141 (discriminator 13) net/ipv4/route.c:2852 (discriminator 13))
[ 67.891484] ipvlan_process_v4_outbound (drivers/net/ipvlan/ipvlan_core.c:445 (discriminator 1))
[ 67.891581] ipvlan_queue_xmit (drivers/net/ipvlan/ipvlan_core.c:542 drivers/net/ipvlan/ipvlan_core.c:604 drivers/net/ipvlan/ipvlan_core.c:670)
[ 67.891596] ipvlan_start_xmit (drivers/net/ipvlan/ipvlan_main.c:227)
[ 67.891607] dev_hard_start_xmit (./include/linux/netdevice.h:4916 ./include/linux/netdevice.h:4925 net/core/dev.c:3588 net/core/dev.c:3604)
[ 67.891620] __dev_queue_xmit (net/core/dev.h:168 (discriminator 25) net/core/dev.c:4425 (discriminator 25))
[ 67.891630] ? skb_copy_bits (./include/linux/uaccess.h:233 (discriminator 1) ./include/linux/uaccess.h:260 (discriminator 1) ./include/linux/highmem-internal.h:230 (discriminator 1) net/core/skbuff.c:3018 (discriminator 1))
[ 67.891645] ? __pskb_pull_tail (net/core/skbuff.c:2848 (discriminator 4))
[ 67.891655] ? skb_partial_csum_set (net/core/skbuff.c:5657)
[ 67.891666] ? virtio_net_hdr_to_skb.constprop.0 (./include/linux/skbuff.h:2791 (discriminator 3) ./include/linux/skbuff.h:2799 (discriminator 3) ./include/linux/virtio_net.h:109 (discriminator 3))
[ 67.891684] packet_sendmsg (net/packet/af_packet.c:3145 (discriminator 1) net/packet/af_packet.c:3177 (discriminator 1))
[ 67.891700] ? _raw_spin_lock_bh (./arch/x86/include/asm/atomic.h:107 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 4) ./include/asm-generic/qspinlock.h:111 (discriminator 4) ./include/linux/spinlock.h:187 (discriminator 4) ./include/linux/spinlock_api_smp.h:127 (discriminator 4) kernel/locking/spinlock.c:178 (discriminator 4))
[ 67.891716] __sys_sendto (net/socket.c:730 (discriminator 1) net/socket.c:745 (discriminator 1) net/socket.c:2210 (discriminator 1))
[ 67.891734] ? do_sock_setsockopt (net/socket.c:2335)
[ 67.891747] ? __sys_setsockopt (./include/linux/file.h:34 net/socket.c:2355)
[ 67.891761] __x64_sys_sendto (net/socket.c:2222 (discriminator 1) net/socket.c:2218 (discriminator 1) net/socket.c:2218 (discriminator 1))
[ 67.891772] do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1))
[ 67.891785] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
Fixes: 9181d6f8a2bb ("net: add more sanity check in virtio_net_hdr_to_skb()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240926165836.3797406-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2024-09-25
* tag 'mlx5-fixes-2024-09-25' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5e: Fix crash caused by calling __xfrm_state_delete() twice
net/mlx5e: SHAMPO, Fix overflow of hd_per_wq
net/mlx5: HWS, changed E2BIG error to a negative return code
net/mlx5: HWS, fixed double-free in error flow of creating SQ
net/mlx5: Fix wrong reserved field in hca_cap_2 in mlx5_ifc
net/mlx5e: Fix NULL deref in mlx5e_tir_builder_alloc()
net/mlx5: Added cond_resched() to crdump collection
net/mlx5: Fix error path in multi-packet WQE transmit
====================
Link: https://patch.msgid.link/20240925202013.45374-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull generic unaligned.h cleanups from Al Viro:
"Get rid of architecture-specific <asm/unaligned.h> includes, replacing
them with a single generic <linux/unaligned.h> header file.
It's the second largest (after asm/io.h) class of asm/* includes, and
all but two architectures actually end up using exact same file.
Massage the remaining two (arc and parisc) to do the same and just
move the thing to from asm-generic/unaligned.h to linux/unaligned.h"
[ This is one of those things that we're better off doing outside the
merge window, and would only cause extra conflict noise if it was in
linux-next for the next release due to all the trivial #include line
updates. Rip off the band-aid. - Linus ]
* tag 'pull-work.unaligned' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
move asm/unaligned.h to linux/unaligned.h
arc: get rid of private asm/unaligned.h
parisc: get rid of private asm/unaligned.h
|
|
asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.
auto-generated by the following:
for i in `git grep -l -w asm/unaligned.h`; do
sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
|
