link count works differently in bcachefs - it's only nonzero for files
with multiple hardlinks, which means we can also avoid checking it
except for files that are known to have hardlinks.
That means we need a few different checks instead; in particular, we
don't want fsck to delet a file that has a dirent pointing to it.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
It's legal for regular files to have missing backpointers (due to
hardlinks), and fsck should automatically add them, but for directories
this is an error that should be flagged.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The fragmentation_lru field hasn't been needed since we reworked the LRU
btrees to use the btree write buffer; previously it was used to resolve
collisions, but the revised LRU btree uses the backpointer (the bucket)
as part of the key.
It should have been deleted at the time of the LRU rework; since it
wasn't, that left places for bugs to hide, in check/repair.
This fixes LRU fsck on a filesystem image helpfully provided by a user
who disappeared before I could get his name for the reported-by.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
check_lru_key() wasn't using write buffer updates for deleting bad lru
entries - dating from before the lru btree used the btree write buffer.
And when possibly flushing the btree write buffer (to make sure we're
seeing a real inconsistency), we need to be using the modern
bch2_btree_write_buffer_maybe_flush().
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Newly generated keys, in the transaction commit path or write path,
should not be AUTOFIX; those indicate bugs that we need to fail fast
for.
Fixes: 5612daafb7 ("bcachefs: Fix fsck warnings from bkey validation")
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Ensure a copy of the lost+found inode exists in the snapshot that we're
reattaching, so that we don't trigger warnings in
lookup_inode_for_snapshot() later.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This fixes two different bugs:
- Looser locking with the rhashtable means we need to recheck if the
inode is still hashed after prepare_to_wait(), and add a corresponding
wakeup after removing from the hash table.
- da18ecbf0f ("fs: add i_state helpers") changed the bit waitqueues
used for inodes, and bcachefs wasn't updated and thus broke; this
updates bcachefs to the new helper.
Fixes: 112d21fd1a ("bcachefs: switch to rhashtable for vfs inodes hash")
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Calling ext4_fc_mark_ineligible() with a NULL handle is racy and may result
in a fast-commit being done before the filesystem is effectively marked as
ineligible. This patch moves the call to this function so that an handle
can be used. If a transaction fails to start, then there's not point in
trying to mark the filesystem as ineligible, and an error will eventually be
returned to user-space.
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Luis Henriques (SUSE) <luis.henriques@linux.dev>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240923104909.18342-3-luis.henriques@linux.dev
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Calling ext4_fc_mark_ineligible() with a NULL handle is racy and may result
in a fast-commit being done before the filesystem is effectively marked as
ineligible. This patch fixes the calls to this function in
__track_dentry_update() by adding an extra parameter to the callback used in
ext4_fc_track_template().
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Luis Henriques (SUSE) <luis.henriques@linux.dev>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240923104909.18342-2-luis.henriques@linux.dev
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
- Expand the speculative SSBS workaround to cover Cortex-A715,
Neoverse-N3 and Microsoft Azure Cobalt 100
- Force position-independent veneers - in some kernel configurations,
the LLD linker generates position-dependent veneers for otherwise
position-independent code, resulting in early boot-time failures
- Fix Kconfig selection of HAVE_DYNAMIC_FTRACE_WITH_ARGS so that it is
not enabled when not supported by the combination of clang and GNU ld
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
"A couple of build/config issues and expanding the speculative SSBS
workaround to more CPUs:
- Expand the speculative SSBS workaround to cover Cortex-A715,
Neoverse-N3 and Microsoft Azure Cobalt 100
- Force position-independent veneers - in some kernel configurations,
the LLD linker generates position-dependent veneers for otherwise
position-independent code, resulting in early boot-time failures
- Fix Kconfig selection of HAVE_DYNAMIC_FTRACE_WITH_ARGS so that it
is not enabled when not supported by the combination of clang and
GNU ld"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Subscribe Microsoft Azure Cobalt 100 to erratum 3194386
arm64: fix selection of HAVE_DYNAMIC_FTRACE_WITH_ARGS
arm64: errata: Expand speculative SSBS workaround once more
arm64: cputype: Add Neoverse-N3 definitions
arm64: Force position-independent veneers
* PERF_TYPE_BREAKPOINT now returns -EOPNOTSUPP instead of -ENOENT, which
aligns to other ports and is a saner value.
* The KASAN-related stack size increasing logic has been moved to a
C header, to avoid dependency issues.
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Merge tag 'riscv-for-linus-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- PERF_TYPE_BREAKPOINT now returns -EOPNOTSUPP instead of -ENOENT,
which aligns to other ports and is a saner value
- The KASAN-related stack size increasing logic has been moved to a C
header, to avoid dependency issues
* tag 'riscv-for-linus-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix kernel stack size when KASAN is enabled
drivers/perf: riscv: Align errno for unsupported perf event
- Fix tp_printk command line option crashing the kernel
With the code that can handle a buffer from a previous boot, the
trace_check_vprintf() needed access to the delta of the address
space used by the old buffer and the current buffer. To do so,
the trace_array (tr) parameter was used. But when tp_printk is
enabled on the kernel command line, no trace buffer is used and
the trace event is sent directly to printk(). That meant the tr
field of the iterator descriptor was NULL, and since tp_printk still
uses trace_check_vprintf() it caused a NULL dereference.
- Add ptrace.h include to x86 ftrace file for completeness
- Fix rtla installation when done with out-of-tree build
- Fix the help messages in rtla that were incorrect
- Several fixes to fix races with the timerlat and hwlat code
Several locking issues were discovered with the coordination
between timerlat kthread creation and hotplug. As timerlat has
callbacks from hotplug code to start kthreads when CPUs come online.
There are also locking issues with grabbing the cpu_read_lock()
and the locks within timerlat.
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Merge tag 'trace-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix tp_printk command line option crashing the kernel
With the code that can handle a buffer from a previous boot, the
trace_check_vprintf() needed access to the delta of the address space
used by the old buffer and the current buffer. To do so, the
trace_array (tr) parameter was used. But when tp_printk is enabled on
the kernel command line, no trace buffer is used and the trace event
is sent directly to printk(). That meant the tr field of the iterator
descriptor was NULL, and since tp_printk still uses
trace_check_vprintf() it caused a NULL dereference.
- Add ptrace.h include to x86 ftrace file for completeness
- Fix rtla installation when done with out-of-tree build
- Fix the help messages in rtla that were incorrect
- Several fixes to fix races with the timerlat and hwlat code
Several locking issues were discovered with the coordination between
timerlat kthread creation and hotplug. As timerlat has callbacks from
hotplug code to start kthreads when CPUs come online. There are also
locking issues with grabbing the cpu_read_lock() and the locks within
timerlat.
* tag 'trace-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/hwlat: Fix a race during cpuhp processing
tracing/timerlat: Fix a race during cpuhp processing
tracing/timerlat: Drop interface_lock in stop_kthread()
tracing/timerlat: Fix duplicated kthread creation due to CPU online/offline
x86/ftrace: Include <asm/ptrace.h>
rtla: Fix the help text in osnoise and timerlat top tools
tools/rtla: Fix installation from out-of-tree build
tracing: Fix trace_check_vprintf() when tp_printk is used
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Merge tag 'slab-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
"Fixes for issues introduced in this merge window: kobject memory leak,
unsupressed warning and possible lockup in new slub_kunit tests,
misleading code in kvfree_rcu_queue_batch()"
* tag 'slab-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slub/kunit: skip test_kfree_rcu when the slub kunit test is built-in
mm, slab: suppress warnings in test_leak_destroy kunit test
rcu/kvfree: Refactor kvfree_rcu_queue_batch()
mm, slab: fix use of SLAB_SUPPORTS_SYSFS in kmem_cache_release()
- Add a quirk for Dell OptiPlex 5480 AIO to the ACPI backlight (video)
driver (Hans de Goede).
- Prevent the ACPI battery driver from crashing when unregistering a
battery hook and simplify battery hook locking in it (Armin Wolf).
- Fix up the ACPI IRQ override quirk list and add quirks for Asus
Vivobook X1704VAP and Asus ExpertBook B2502CVA to it (Hans de Goede).
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Merge tag 'acpi-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix up the ACPI IRQ override quirk list and add two new entries
to it, add a new quirk to the ACPI backlight (video) driver, and fix
the ACPI battery driver.
Specifics:
- Add a quirk for Dell OptiPlex 5480 AIO to the ACPI backlight
(video) driver (Hans de Goede)
- Prevent the ACPI battery driver from crashing when unregistering a
battery hook and simplify battery hook locking in it (Armin Wolf)
- Fix up the ACPI IRQ override quirk list and add quirks for Asus
Vivobook X1704VAP and Asus ExpertBook B2502CVA to it (Hans de
Goede)"
* tag 'acpi-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: battery: Fix possible crash when unregistering a battery hook
ACPI: battery: Simplify battery hook locking
ACPI: video: Add backlight=native quirk for Dell OptiPlex 5480 AIO
ACPI: resource: Add Asus ExpertBook B2502CVA to irq1_level_low_skip_override[]
ACPI: resource: Add Asus Vivobook X1704VAP to irq1_level_low_skip_override[]
ACPI: resource: Loosen the Asus E1404GAB DMI match to also cover the E1404GA
ACPI: resource: Remove duplicate Asus E1504GAB IRQ override
- 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).
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Merge tag 'pm-6.12-rc2' of 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
- fix a potential NULL-pointer dereference in gpiolib core
- fix a probe() regression from the v6.12 merge window and an older bug
leading to missed interrupts in gpio-davinci
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Merge tag 'gpio-fixes-for-v6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- fix a potential NULL-pointer dereference in gpiolib core
- fix a probe() regression from the v6.12 merge window and an older bug
leading to missed interrupts in gpio-davinci
* tag 'gpio-fixes-for-v6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpiolib: Fix potential NULL pointer dereference in gpiod_get_label()
gpio: davinci: Fix condition for irqchip registration
gpio: davinci: fix lazy disable
Slightly high amount of changes in this round, partly because of my
vacation in the last weeks. But all changes are small and nothing
looks worrisome.
The biggest LOCs is MAINTAINERS updates, and there is a core change
for card-ID string creation for non-ASCII inputs. Others are rather
device-specific, such as new quirks and device IDs for ASoC, usual
HD-audio and USB-audio quirks and fixes, as well as regression fixes
in HD-audio HDMI audio and Conexant codec.
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Merge tag 'sound-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Slightly high amount of changes in this round, partly because of my
vacation in the last weeks. But all changes are small and nothing
looks worrisome.
The biggest LOCs is MAINTAINERS updates, and there is a core change
for card-ID string creation for non-ASCII inputs. Others are rather
device-specific, such as new quirks and device IDs for ASoC, usual
HD-audio and USB-audio quirks and fixes, as well as regression fixes
in HD-audio HDMI audio and Conexant codec"
* tag 'sound-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (39 commits)
ALSA: hda/conexant: Fix conflicting quirk for System76 Pangolin
ALSA: line6: add hw monitor volume control to POD HD500X
ALSA: gus: Fix some error handling paths related to get_bpos() usage
ALSA: hda: Add missing parameter description for snd_hdac_stream_timecounter_init()
ALSA: usb-audio: Add native DSD support for Luxman D-08u
ALSA: core: add isascii() check to card ID generator
MAINTAINERS: ALSA: use linux-sound@vger.kernel.org list
Revert "ALSA: hda: Conditionally use snooping for AMD HDMI"
ASoC: intel: sof_sdw: Add check devm_kasprintf() returned value
ASoC: imx-card: Set card.owner to avoid a warning calltrace if SND=m
ASoC: dt-bindings: davinci-mcasp: Fix interrupts property
ASoC: qcom: sm8250: add qrb4210-rb2-sndcard compatible string
ASoC: dt-bindings: qcom,sm8250: add qrb4210-rb2-sndcard
ALSA: hda: fix trigger_tstamp_latched
ALSA: hda/realtek: Add a quirk for HP Pavilion 15z-ec200
ALSA: hda/generic: Drop obsoleted obey_preferred_dacs flag
ALSA: hda/generic: Unconditionally prefer preferred_dacs pairs
ALSA: silence integer wrapping warning
ASoC: Intel: soc-acpi: arl: Fix some missing empty terminators
ASoC: Intel: soc-acpi-intel-rpl-match: add missing empty item
...
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
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Merge tag 'drm-fixes-2024-10-04' of https://gitlab.freedesktop.org/drm/kernel
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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Merge tag 'io_uring-6.12-20241004' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Fix an error path memory leak, if one part fails to allocate.
Obviously not something that'll generally hit without error
injection.
- Fix an io_req_flags_t cast to make sparse happier.
- Improve the recv multishot termination. Not a bug now, but could be
one in the future. This makes it do the same thing that recvmsg does
in terms of when to terminate a request or not.
* tag 'io_uring-6.12-20241004' of git://git.kernel.dk/linux:
io_uring/net: harden multishot termination case for recv
io_uring: fix casts to io_req_flags_t
io_uring: fix memory leak when cache init fail
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Merge tag 'fsnotify_for_v6.12-rc2' of 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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Merge tag 'fs_for_v6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes from Jan Kara:
"A couple of UDF error handling fixes for issues spotted by syzbot"
* tag 'fs_for_v6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: fix uninit-value use in udf_get_fileshortad
udf: refactor inode_bmap() to handle error
udf: refactor udf_next_aext() to handle error
udf: refactor udf_current_aext() to handle error
a regression in cap handling which sneaked in through the netfs helper
library in 5.18 (marked for stable) and an unrelated one-line cleanup.
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Merge tag 'ceph-for-6.12-rc2' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"A fix from Patrick for a variety of CephFS lockup scenarios caused by
a regression in cap handling which sneaked in through the netfs helper
library in 5.18 (marked for stable) and an unrelated one-line cleanup"
* tag 'ceph-for-6.12-rc2' of https://github.com/ceph/ceph-client:
ceph: fix cap ref leak via netfs init_request
ceph: use struct_size() helper in __ceph_pool_perm_get()
Merge an ACPI backlight (video) quirk and ACPI battery driver fix and
cleanup for 6.12-rc2:
- Add a quirk for Dell OptiPlex 5480 AIO to the ACPI backlight (video)
driver (Hans de Goede).
- Prevent the ACPI battery driver from crashing when unregistering a
battery hook and simplify battery hook locking in it (Armin Wolf).
* acpi-video:
ACPI: video: Add backlight=native quirk for Dell OptiPlex 5480 AIO
* acpi-battery:
ACPI: battery: Fix possible crash when unregistering a battery hook
ACPI: battery: Simplify battery hook locking
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Merge tag 'for-6.12-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- in incremental send, fix invalid clone operation for file that got
its size decreased
- fix __counted_by() annotation of send path cache entries, we do not
store the terminating NUL
- fix a longstanding bug in relocation (and quite hard to hit by
chance), drop back reference cache that can get out of sync after
transaction commit
- wait for fixup worker kthread before finishing umount
- add missing raid-stripe-tree extent for NOCOW files, zoned mode
cannot have NOCOW files but RST is meant to be a standalone feature
- handle transaction start error during relocation, avoid potential
NULL pointer dereference of relocation control structure (reported by
syzbot)
- disable module-wide rate limiting of debug level messages
- minor fix to tracepoint definition (reported by checkpatch.pl)
* tag 'for-6.12-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: disable rate limiting when debug enabled
btrfs: wait for fixup workers before stopping cleaner kthread during umount
btrfs: fix a NULL pointer dereference when failed to start a new trasacntion
btrfs: send: fix invalid clone operation for file that got its size decreased
btrfs: tracepoints: end assignment with semicolon at btrfs_qgroup_extent event class
btrfs: drop the backref cache during relocation if we commit
btrfs: also add stripe entries for NOCOW writes
btrfs: send: fix buffer overflow detection when copying path to cache entry
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Merge tag 'v6.12-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- statfs fix (e.g. when limited access to root directory of share)
- special file handling fixes: fix packet validation to avoid buffer
overflow for reparse points, fixes for symlink path parsing (one for
reparse points, and one for SFU use case), and fix for cleanup after
failed SET_REPARSE operation.
- fix for SMB2.1 signing bug introduced by recent patch to NFS symlink
path, and NFS reparse point validation
- comment cleanup
* tag 'v6.12-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Do not convert delimiter when parsing NFS-style symlinks
cifs: Validate content of NFS reparse point buffer
cifs: Fix buffer overflow when parsing NFS reparse points
smb: client: Correct typos in multiple comments across various files
smb: client: use actual path when queryfs
cifs: Remove intermediate object of failed create reparse call
Revert "smb: client: make SHA-512 TFM ephemeral"
smb: Update comments about some reparse point tags
cifs: Check for UTF-16 null codepoint in SFU symlink target location
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
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
In the stm32f7 a potential deadlock is fixed during runtime
suspend and resume.
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Merge tag 'i2c-host-fixes-6.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
i2c-host fixes for v6.12-rc2
In the stm32f7 a potential deadlock is fixed during runtime
suspend and resume.
This patch reverts two TOMOYO patches that were merged into Linus' tree
during the v6.12 merge window:
8b985bbfab ("tomoyo: allow building as a loadable LSM module")
268225a1de ("tomoyo: preparation step for building as a loadable LSM module")
Together these two patches introduced the CONFIG_SECURITY_TOMOYO_LKM
Kconfig build option which enabled a TOMOYO specific dynamic LSM loading
mechanism (see the original commits for more details). Unfortunately,
this approach was widely rejected by the LSM community as well as some
members of the general kernel community. Objections included concerns
over setting a bad precedent regarding individual LSMs managing their
LSM callback registrations as well as general kernel symbol exporting
practices. With little to no support for the CONFIG_SECURITY_TOMOYO_LKM
approach outside of Tetsuo, and multiple objections, we need to revert
these changes.
Link: https://lore.kernel.org/all/0c4b443a-9c72-4800-97e8-a3816b6a9ae2@I-love.SAKURA.ne.jp
Link: https://lore.kernel.org/all/CAHC9VhR=QjdoHG3wJgHFJkKYBg7vkQH2MpffgVzQ0tAByo_wRg@mail.gmail.com
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Add the Microsoft Azure Cobalt 100 CPU to the list of CPUs suffering
from erratum 3194386 added in commit 75b3c43eab ("arm64: errata:
Expand speculative SSBS workaround")
CC: Mark Rutland <mark.rutland@arm.com>
CC: James More <james.morse@arm.com>
CC: Will Deacon <will@kernel.org>
CC: stable@vger.kernel.org # 6.6+
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
Link: https://lore.kernel.org/r/20241003225239.321774-1-eahariha@linux.microsoft.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
We received a regression report for System76 Pangolin (pang14) due to
the recent fix for Tuxedo Sirius devices to support the top speaker.
The reason was the conflicting PCI SSID, as often seen.
As a workaround, now the codec SSID is checked and the quirk is
applied conditionally only to Sirius devices.
Fixes: 4178d78cd7 ("ALSA: hda/conexant: Add pincfg quirk to enable top speakers on Sirius devices")
Reported-by: Christian Heusel <christian@heusel.eu>
Reported-by: Jerry <jerryluo225@gmail.com>
Closes: https://lore.kernel.org/c930b6a6-64e5-498f-b65a-1cd5e0a1d733@heusel.eu
Link: https://patch.msgid.link/20241004082602.29016-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Add hw monitor volume control for POD HD500X. This is done adding
LINE6_CAP_HWMON_CTL to the capabilities
Signed-off-by: Hans P. Moller <hmoller@uc.cl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20241003232828.5819-1-hmoller@uc.cl
- Restore pci state on resume (Rodrigo Vivi)
- Fix locking on submission, queue and vm (Matthew Auld, Matthew Brost)
- Fix UAF on queue destruction (Matthew Auld)
- Fix resource release on freq init error path (He Lugang)
- Use rw_semaphore to reduce contention on ASID->VM lookup (Matthew Brost)
- Fix steering for media on Xe2_HPM (Gustavo Sousa)
- Tuning updates to Xe2 (Gustavo Sousa)
- Resume TDR after GT reset to prevent jobs running forever (Matthew Brost)
- Move id allocation to avoid userspace using a guessed number
to trigger UAF (Matthew Auld, Matthew Brost)
- Fix OA stream close preventing pbatch buffers to complete (José)
- Fix NPD when migrating memory on LNL (Zhanjun Dong)
- Fix memory leak when aborting binds (Matthew Brost)
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Merge tag 'drm-xe-fixes-2024-10-03' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Restore pci state on resume (Rodrigo Vivi)
- Fix locking on submission, queue and vm (Matthew Auld, Matthew Brost)
- Fix UAF on queue destruction (Matthew Auld)
- Fix resource release on freq init error path (He Lugang)
- Use rw_semaphore to reduce contention on ASID->VM lookup (Matthew Brost)
- Fix steering for media on Xe2_HPM (Gustavo Sousa)
- Tuning updates to Xe2 (Gustavo Sousa)
- Resume TDR after GT reset to prevent jobs running forever (Matthew Brost)
- Move id allocation to avoid userspace using a guessed number
to trigger UAF (Matthew Auld, Matthew Brost)
- Fix OA stream close preventing pbatch buffers to complete (José)
- Fix NPD when migrating memory on LNL (Zhanjun Dong)
- Fix memory leak when aborting binds (Matthew Brost)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/2fiv63yanlal5mpw3mxtotte6yvkvtex74c7mkjxca4bazlyja@o4iejcfragxy
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Merge tag 'pull-fixes.ufs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull ufs fix from Al Viro:
"Fix ufs_rename() braino introduced this cycle.
The 'folio_release_kmap(dir_folio, new_dir)' in ufs_rename() part of
folio conversion should've been getting a pointer to ufs directory
entry within the page, rather than a pointer to directory struct
inode..."
* tag 'pull-fixes.ufs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ufs_rename(): fix bogus argument of folio_release_kmap()
Brandon reports sporadic, non-sensical spikes in cumulative pressure
time (total=) when reading cpu.pressure at a high rate. This is due to
a race condition between reader aggregation and tasks changing states.
While it affects all states and all resources captured by PSI, in
practice it most likely triggers with CPU pressure, since scheduling
events are so frequent compared to other resource events.
The race context is the live snooping of ongoing stalls during a
pressure read. The read aggregates per-cpu records for stalls that
have concluded, but will also incorporate ad-hoc the duration of any
active state that hasn't been recorded yet. This is important to get
timely measurements of ongoing stalls. Those ad-hoc samples are
calculated on-the-fly up to the current time on that CPU; since the
stall hasn't concluded, it's expected that this is the minimum amount
of stall time that will enter the per-cpu records once it does.
The problem is that the path that concludes the state uses a CPU clock
read that is not synchronized against aggregators; the clock is read
outside of the seqlock protection. This allows aggregators to race and
snoop a stall with a longer duration than will actually be recorded.
With the recorded stall time being less than the last snapshot
remembered by the aggregator, a subsequent sample will underflow and
observe a bogus delta value, resulting in an erratic jump in pressure.
Fix this by moving the clock read of the state change into the seqlock
protection. This ensures no aggregation can snoop live stalls past the
time that's recorded when the state concludes.
Reported-by: Brandon Duffany <brandon@buildbuddy.io>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219194
Link: https://lore.kernel.org/lkml/20240827121851.GB438928@cmpxchg.org/
Fixes: df77430639 ("psi: Reduce calls to sched_clock() in psi")
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Chengming Zhou <chengming.zhou@linux.dev>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As was tried in commit 4e103134b8 ("KVM: x86/mmu: Zap only the relevant
pages when removing a memslot"), all shadow pages, i.e. non-leaf SPTEs,
need to be zapped. All of the accounting for a shadow page is tied to the
memslot, i.e. the shadow page holds a reference to the memslot, for all
intents and purposes. Deleting the memslot without removing all relevant
shadow pages, as is done when KVM_X86_QUIRK_SLOT_ZAP_ALL is disabled,
results in NULL pointer derefs when tearing down the VM.
Reintroduce from that commit the code that walks the whole memslot when
there are active shadow MMU pages.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
There is another found exception that the "timerlat/1" thread was
scheduled on CPU0, and lead to timer corruption finally:
```
ODEBUG: init active (active state 0) object: ffff888237c2e108 object type: hrtimer hint: timerlat_irq+0x0/0x220
WARNING: CPU: 0 PID: 426 at lib/debugobjects.c:518 debug_print_object+0x7d/0xb0
Modules linked in:
CPU: 0 UID: 0 PID: 426 Comm: timerlat/1 Not tainted 6.11.0-rc7+ #45
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:debug_print_object+0x7d/0xb0
...
Call Trace:
<TASK>
? __warn+0x7c/0x110
? debug_print_object+0x7d/0xb0
? report_bug+0xf1/0x1d0
? prb_read_valid+0x17/0x20
? handle_bug+0x3f/0x70
? exc_invalid_op+0x13/0x60
? asm_exc_invalid_op+0x16/0x20
? debug_print_object+0x7d/0xb0
? debug_print_object+0x7d/0xb0
? __pfx_timerlat_irq+0x10/0x10
__debug_object_init+0x110/0x150
hrtimer_init+0x1d/0x60
timerlat_main+0xab/0x2d0
? __pfx_timerlat_main+0x10/0x10
kthread+0xb7/0xe0
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2d/0x40
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
```
After tracing the scheduling event, it was discovered that the migration
of the "timerlat/1" thread was performed during thread creation. Further
analysis confirmed that it is because the CPU online processing for
osnoise is implemented through workers, which is asynchronous with the
offline processing. When the worker was scheduled to create a thread, the
CPU may has already been removed from the cpu_online_mask during the offline
process, resulting in the inability to select the right CPU:
T1 | T2
[CPUHP_ONLINE] | cpu_device_down()
osnoise_hotplug_workfn() |
| cpus_write_lock()
| takedown_cpu(1)
| cpus_write_unlock()
[CPUHP_OFFLINE] |
cpus_read_lock() |
start_kthread(1) |
cpus_read_unlock() |
To fix this, skip online processing if the CPU is already offline.
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20240924094515.3561410-4-liwei391@huawei.com
Fixes: c8895e271f ("trace/osnoise: Support hotplug operations")
Signed-off-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
stop_kthread() is the offline callback for "trace/osnoise:online", since
commit 5bfbcd1ee5 ("tracing/timerlat: Add interface_lock around clearing
of kthread in stop_kthread()"), the following ABBA deadlock scenario is
introduced:
T1 | T2 [BP] | T3 [AP]
osnoise_hotplug_workfn() | work_for_cpu_fn() | cpuhp_thread_fun()
| _cpu_down() | osnoise_cpu_die()
mutex_lock(&interface_lock) | | stop_kthread()
| cpus_write_lock() | mutex_lock(&interface_lock)
cpus_read_lock() | cpuhp_kick_ap() |
As the interface_lock here in just for protecting the "kthread" field of
the osn_var, use xchg() instead to fix this issue. Also use
for_each_online_cpu() back in stop_per_cpu_kthreads() as it can take
cpu_read_lock() again.
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20240924094515.3561410-3-liwei391@huawei.com
Fixes: 5bfbcd1ee5 ("tracing/timerlat: Add interface_lock around clearing of kthread in stop_kthread()")
Signed-off-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
osnoise_hotplug_workfn() is the asynchronous online callback for
"trace/osnoise:online". It may be congested when a CPU goes online and
offline repeatedly and is invoked for multiple times after a certain
online.
This will lead to kthread leak and timer corruption. Add a check
in start_kthread() to prevent this situation.
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20240924094515.3561410-2-liwei391@huawei.com
Fixes: c8895e271f ("trace/osnoise: Support hotplug operations")
Signed-off-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
<asm/ftrace.h> uses struct pt_regs in several places. Include
<asm/ptrace.h> to ensure it's visible. This is needed to make sure
object files that only include <asm/asm-prototypes.h> compile.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lore.kernel.org/20240916221557.846853-2-samitolvanen@google.com
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The help text in osnoise top and timerlat top had some minor errors
and omissions. The -d option was missing the 's' (second) abbreviation and
the error message for '-d' used '-D'.
Cc: stable@vger.kernel.org
Fixes: 1eceb2fc2c ("rtla/osnoise: Add osnoise top mode")
Fixes: a828cd18bc ("rtla: Add timerlat tool and timelart top mode")
Link: https://lore.kernel.org/20240813155831.384446-1-ezulian@redhat.com
Suggested-by: Tomas Glozar <tglozar@redhat.com>
Reviewed-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Eder Zulian <ezulian@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
rtla now supports out-of-tree builds, but installation fails as it
still tries to install the rtla binary from the source tree. Use the
existing macro $(RTLA) to refer to the binary.
Link: https://lore.kernel.org/ZudubuoU_JHjPZ7w@decadent.org.uk
Fixes: 01474dc706 ("tools/rtla: Use tools/build makefiles to build rtla")
Reviewed-by: Tomas Glozar <tglozar@redhat.com>
Tested-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Ben Hutchings <benh@debian.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
When the tp_printk kernel command line is used, the trace events go
directly to printk(). It is still checked via the trace_check_vprintf()
function to make sure the pointers of the trace event are legit.
The addition of reading buffers from previous boots required adding a
delta between the addresses of the previous boot and the current boot so
that the pointers in the old buffer can still be used. But this required
adding a trace_array pointer to acquire the delta offsets.
The tp_printk code does not provide a trace_array (tr) pointer, so when
the offsets were examined, a NULL pointer dereference happened and the
kernel crashed.
If the trace_array does not exist, just default the delta offsets to zero,
as that also means the trace event is not being read from a previous boot.
Link: https://lore.kernel.org/all/Zv3z5UsG_jsO9_Tb@aschofie-mobl2.lan/
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20241003104925.4e1b1fd9@gandalf.local.home
Fixes: 07714b4bb3 ("tracing: Handle old buffer mappings for event strings and functions")
Reported-by: Alison Schofield <alison.schofield@intel.com>
Tested-by: Alison Schofield <alison.schofield@intel.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
