mirror of
https://github.com/torvalds/linux.git
synced 2026-07-27 17:47:41 +02:00
0bcc2dc22f
1448418 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
0bcc2dc22f |
Performance events updates for v7.2:
Core perf code updates:
- Reveal PMU type in fdinfo (Chun-Tse Shao)
Intel CPU PMU driver updates:
- Fix various inaccurate hard-coded event configurations
(Dapeng Mi)
Intel uncore PMU driver updates (Zide Chen):
- Fix discovery unit lookup bug for multi-die systems
- Guard against invalid box control address
- Fix PCI device refcount leak in UPI discovery
- Defer ADL global PMON enable to enable_box() to save power
- Fix uncore_die_to_cpu() for offline dies
- Implement global init callback for GNR uncore
AMD CPU PMU driver updates:
- Always use the NMI latency mitigation (Sandipan Das)
AMD uncore PMU driver updates:
- Use Node ID to identify DF and UMC domains (Sandipan Das)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=Di4Y
-----END PGP SIGNATURE-----
Merge tag 'perf-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"Core perf code updates:
- Reveal PMU type in fdinfo (Chun-Tse Shao)
Intel CPU PMU driver updates:
- Fix various inaccurate hard-coded event configurations (Dapeng Mi)
Intel uncore PMU driver updates (Zide Chen):
- Fix discovery unit lookup bug for multi-die systems
- Guard against invalid box control address
- Fix PCI device refcount leak in UPI discovery
- Defer ADL global PMON enable to enable_box() to save power
- Fix uncore_die_to_cpu() for offline dies
- Implement global init callback for GNR uncore
AMD CPU PMU driver updates:
- Always use the NMI latency mitigation (Sandipan Das)
AMD uncore PMU driver updates:
- Use Node ID to identify DF and UMC domains (Sandipan Das)"
* tag 'perf-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (22 commits)
perf/x86/amd/uncore: Use Node ID to identify DF and UMC domains
perf: Reveal PMU type in fdinfo
perf/x86/intel/uncore: Implement global init callback for GNR uncore
perf/x86/intel/uncore: Fix uncore_die_to_cpu() for offline dies
perf/x86/intel/uncore: Move die_to_cpu() to uncore.c
perf/x86/intel/uncore: Defer ADL global PMON enable to enable_box()
perf/x86/intel/uncore: Fix PCI device refcount leak in UPI discovery
perf/x86/intel/uncore: Guard against invalid box control address
perf/x86/intel/uncore: Fix discovery unit lookup for multi-die systems
perf/x86/amd/core: Always use the NMI latency mitigation
perf/x86/intel: Update event constraints and cache_extra_regsfor CWF
perf/x86/intel: Update event constraints and cache_extra_regsfor SRF
perf/x86/intel: Update event constraints and cache_extra_regsfor NVL
perf/x86/intel: Update event constraints for PTL
perf/x86/intel: Update event constraints and cache_extra_regsfor ARL
perf/x86/intel: Update event constraints and cache_extra_regsfor LNL
perf/x86/intel: Update event constraints and cache_extra_regsfor MTL
perf/x86/intel: Update event constraints and cache_extra_regsfor ADL
perf/x86/intel: Update event constraints for DMR
perf/x86/intel: Update event constraints and cache_extra_regsfor SPR
...
|
||
|
Linus Torvalds
|
d8d706a274 |
Objtool updates for v7.2:
- A large series of KLP fixes and improvements, in preparation of
the arm64 port (Josh Poimboeuf)
- Fix a number of bugs and issues on specific distro, LTO,
FineIBT and kCFI configs (Josh Poimboeuf)
- Misc other fixes by Josh Poimboeuf and Joe Lawrence.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=D5SB
-----END PGP SIGNATURE-----
Merge tag 'objtool-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- A large series of KLP fixes and improvements, in preparation of the
arm64 port (Josh Poimboeuf)
- Fix a number of bugs and issues on specific distro, LTO, FineIBT and
kCFI configs (Josh Poimboeuf)
- Misc other fixes by Josh Poimboeuf and Joe Lawrence
* tag 'objtool-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (53 commits)
objtool/klp: Cache dont_correlate() result
objtool: Improve and simplify prefix symbol detection
objtool/klp: Fix kCFI prefix finding/cloning
objtool: Grow __cfi_* prefix symbols for all CFI+CALL_PADDING
objtool/klp: Fix position-dependent checksums for non-relocated jumps/calls
objtool: Add insn_sym() helper
objtool/klp: Add correlation debugging output
objtool/klp: Rewrite symbol correlation algorithm
objtool/klp: Calculate object checksums
klp-build: Validate short-circuit prerequisites
objtool/klp: Remove "objtool --checksum"
klp-build: Use "objtool klp checksum" subcommand
objtool/klp: Add "objtool klp checksum" subcommand
objtool: Consolidate file decoding into decode_file()
objtool/klp: Extricate checksum calculation from validate_branch()
objtool: Add is_cold_func() helper
objtool: Add is_alias_sym() helper
objtool/klp: Handle Clang .data..Lanon anonymous data sections
objtool/klp: Create empty checksum sections for function-less object files
objtool: Include libsubcmd headers directly from source tree
...
|
||
|
Linus Torvalds
|
764e77d868 |
Locking updates for v7.2:
Futex updates:
- Optimize futex hash bucket access patterns (Peter Zijlstra)
- Large series to address the robust futex unlock race for real,
by Thomas Gleixner:
"The robust futex unlock mechanism is racy in respect
to the clearing of the robust_list_head::list_op_pending
pointer because unlock and clearing the pointer are not
atomic. The race window is between the unlock and clearing the
pending op pointer. If the task is forced to exit in this
window, exit will access a potentially invalid pending op
pointer when cleaning up the robust list. That happens if
another task manages to unmap the object containing the lock
before the cleanup, which results in an UAF. In the worst case
this UAF can lead to memory corruption when unrelated content
has been mapped to the same address by the time the access
happens.
User space can't solve this problem without help from the kernel.
This series provides the kernel side infrastructure to help it
along:
1) Combined unlock, pointer clearing, wake-up for the
contended case
2) VDSO based unlock and pointer clearing helpers with a
fix-up function in the kernel when user space was interrupted
within the critical section.
... with help by André Almeida:
- Add a note about robust list race condition (André Almeida)
- Add self-tests for robust release operations (André Almeida)
Context analysis updates:
- Implement context analysis for 'struct rt_mutex'.
(Bart Van Assche)
- Bump required Clang version to 23 (Marco Elver)
Guard infrastructure updates:
- Series to remove NULL check from unconditional guards
(Dmitry Ilvokhin)
Lockdep updates:
- Restore self-test migrate_disable() and sched_rt_mutex
state on PREEMPT_RT (Karl Mehltretter)
Membarriers updates:
- Use per-CPU mutexes for targeted commands (Aniket Gattani)
- Modernize membarrier_global_expedited with cleanup guards
(Aniket Gattani)
- Add rseq stress test for CFS throttle interactions (Aniket Gattani)
percpu-rwsems updates:
- Extract __percpu_up_read() to optimize inlining overhead
(Dmitry Ilvokhin)
Seqlocks updates:
- Allow UBSAN_ALIGNMENT to fail optimizing (Heiko Carstens)
Lock tracing:
- Add contended_release tracepoint to sleepable locks
such as mutexes, percpu-rwsems, rtmutexes, rwsems
and semaphores. (Dmitry Ilvokhin)
MAINTAINERS updates:
- MAINTAINERS: Add RUST [SYNC] entry (Boqun Feng)
Misc updates and fixes by Randy Dunlap, YE WEI-HONG,
Fabricio Parra, Dmitry Ilvokhin and Peter Zijlstra.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=gpHw
-----END PGP SIGNATURE-----
Merge tag 'locking-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futex updates:
- Optimize futex hash bucket access patterns (Peter Zijlstra)
- Large series to address the robust futex unlock race for real, by
Thomas Gleixner:
"The robust futex unlock mechanism is racy in respect to the
clearing of the robust_list_head::list_op_pending pointer because
unlock and clearing the pointer are not atomic.
The race window is between the unlock and clearing the pending op
pointer. If the task is forced to exit in this window, exit will
access a potentially invalid pending op pointer when cleaning up
the robust list.
That happens if another task manages to unmap the object
containing the lock before the cleanup, which results in an UAF.
In the worst case this UAF can lead to memory corruption when
unrelated content has been mapped to the same address by the time
the access happens.
User space can't solve this problem without help from the kernel.
This series provides the kernel side infrastructure to help it
along:
1) Combined unlock, pointer clearing, wake-up for the
contended case
2) VDSO based unlock and pointer clearing helpers with a
fix-up function in the kernel when user space was interrupted
within the critical section.
... with help by André Almeida:
- Add a note about robust list race condition (André Almeida)
- Add self-tests for robust release operations (André Almeida)
Context analysis updates:
- Implement context analysis for 'struct rt_mutex'. (Bart Van Assche)
- Bump required Clang version to 23 (Marco Elver)
Guard infrastructure updates:
- Series to remove NULL check from unconditional guards (Dmitry
Ilvokhin)
Lockdep updates:
- Restore self-test migrate_disable() and sched_rt_mutex state on
PREEMPT_RT (Karl Mehltretter)
Membarriers updates:
- Use per-CPU mutexes for targeted commands (Aniket Gattani)
- Modernize membarrier_global_expedited with cleanup guards (Aniket
Gattani)
- Add rseq stress test for CFS throttle interactions (Aniket Gattani)
percpu-rwsems updates:
- Extract __percpu_up_read() to optimize inlining overhead (Dmitry
Ilvokhin)
Seqlocks updates:
- Allow UBSAN_ALIGNMENT to fail optimizing (Heiko Carstens)
Lock tracing:
- Add contended_release tracepoint to sleepable locks such as
mutexes, percpu-rwsems, rtmutexes, rwsems and semaphores (Dmitry
Ilvokhin)
MAINTAINERS updates:
- MAINTAINERS: Add RUST [SYNC] entry (Boqun Feng)
Misc updates and fixes by Randy Dunlap, YE WEI-HONG, Fabricio Parra,
Dmitry Ilvokhin and Peter Zijlstra"
* tag 'locking-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (36 commits)
locking: Add contended_release tracepoint to sleepable locks
locking/percpu-rwsem: Extract __percpu_up_read()
tracing/lock: Remove unnecessary linux/sched.h include
futex: Optimize futex hash bucket access patterns
rust: sync: completion: Mark inline complete_all and wait_for_completion
MAINTAINERS: Add RUST [SYNC] entry
cleanup: Specify nonnull argument index
selftests: futex: Add tests for robust release operations
Documentation: futex: Add a note about robust list race condition
x86/vdso: Implement __vdso_futex_robust_try_unlock()
x86/vdso: Prepare for robust futex unlock support
futex: Provide infrastructure to plug the non contended robust futex unlock race
futex: Add robust futex unlock IP range
futex: Add support for unlocking robust futexes
futex: Cleanup UAPI defines
x86: Select ARCH_MEMORY_ORDER_TSO
uaccess: Provide unsafe_atomic_store_release_user()
futex: Provide UABI defines for robust list entry modifiers
futex: Move futex related mm_struct data into a struct
futex: Make futex_mm_init() void
...
|
||
|
Linus Torvalds
|
186d3c4e92 |
A series of updates for the VDSO:
- Remove the redundant CONFIG_GENERIC_TIME_VSYSCALL after converting the
remaining users over.
- Rework and sanitize the MIPS VDSO handling, so it does not handle the
time related VDSO if there is no VDSO capable clocksource available.
Also stop mapping VDSO data pages unconditionally even if there is no
usage possible.
-----BEGIN PGP SIGNATURE-----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=Z90m
-----END PGP SIGNATURE-----
Merge tag 'timers-vdso-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull vdso updates from Thomas Gleixner:
- Remove the redundant CONFIG_GENERIC_TIME_VSYSCALL after converting
the remaining users over.
- Rework and sanitize the MIPS VDSO handling, so it does not handle the
time related VDSO if there is no VDSO capable clocksource available.
Also stop mapping VDSO data pages unconditionally even if there is no
usage possible.
* tag 'timers-vdso-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
MIPS: VDSO: Fold MIPS_CLOCK_VSYSCALL into MIPS_GENERIC_GETTIMEOFDAY
MIPS: VDSO: Gate microMIPS restriction on GCC version
MIPS: VDSO: Fold MIPS_DISABLE_VDSO into MIPS_GENERIC_GETTIMEOFDAY
clocksource/drivers/mips-gic-timer: Only use VDSO_CLOCKMODE_GIC when it is a available
MIPS: csrc-r4k: Only use VDSO_CLOCKMODE_R4K when it is a available
MIPS: VDSO: Only map the data pages when the vDSO is used
MIPS: Introduce Kconfig MIPS_GENERIC_GETTIMEOFDAY
vdso/datastore: Always provide symbol declarations
MAINTAINERS: Add include/linux/vdso_datastore.h to vDSO block
vdso/gettimeofday: Rename __arch_get_vdso_u_timens_data()
vdso/treewide: Drop GENERIC_TIME_VSYSCALL
vdso/vsyscall: Gate update_vsyscall() behind CONFIG_GENERIC_GETTIMEOFDAY
riscv: vdso: Drop CONFIG_GENERIC_TIME_VSYSCALL guard around syscall fallbacks
|
||
|
Linus Torvalds
|
2d6d57f889 |
Updates for NTP/timekeeping and PTP:
- Expand timekeeping snapshot mechanisms
The various snapshot functions are mostly used for PTP to collect
"atomic" snapshots of various involved clocks.
They lack support for the recently introduced AUX clocks and do not
provide the underlying counter value (e.g. TSC) to user space. Exposing
the counter value snapshot allows for better control and steering.
Convert the hard wired ktime_get_snapshot() to take a clock ID, which
allows the caller to select the clock ID to be captured along with
CLOCK_MONONOTONIC_RAW. Additionally capture the underlying hardware
counter value and the clock source ID of the counter.
Expand the hardware based snapshot capture where devices provide a
mechanism to snapshot the hardware PTP clock and the system counter
(usually via PCI/PTM) to support AUX clocks and also provide the
captured counter value back to the caller and not only the clock
timestamps derived from it.
- Add a new optional read_snapshot() callback to clocksources
That is required to capture atomic snapshots from clocksources which
are derived from TSC with a scaling mechanism (e.g. Hyper-V, KVMclock).
The value pair is handed back in the snapshot structure to the callers,
so they can do the necessary correlations in a more precise way.
This touches usage sites of the affected functions and data structure all
over the tree, but stays fully backwards compatible for the existing user
space exposed interfaces. New PTP IOCTLs will provide access to the
extended functionality in later kernel versions.
-----BEGIN PGP SIGNATURE-----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=kBrz
-----END PGP SIGNATURE-----
Merge tag 'timers-ptp-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull timekeeping updates from Thomas Gleixner:
"Updates for NTP/timekeeping and PTP:
- Expand timekeeping snapshot mechanisms
The various snapshot functions are mostly used for PTP to collect
"atomic" snapshots of various involved clocks.
They lack support for the recently introduced AUX clocks and do not
provide the underlying counter value (e.g. TSC) to user space.
Exposing the counter value snapshot allows for better control and
steering.
Convert the hard wired ktime_get_snapshot() to take a clock ID,
which allows the caller to select the clock ID to be captured along
with CLOCK_MONONOTONIC_RAW. Additionally capture the underlying
hardware counter value and the clock source ID of the counter.
Expand the hardware based snapshot capture where devices provide a
mechanism to snapshot the hardware PTP clock and the system counter
(usually via PCI/PTM) to support AUX clocks and also provide the
captured counter value back to the caller and not only the clock
timestamps derived from it.
- Add a new optional read_snapshot() callback to clocksources
That is required to capture atomic snapshots from clocksources
which are derived from TSC with a scaling mechanism (e.g. Hyper-V,
KVMclock).
The value pair is handed back in the snapshot structure to the
callers, so they can do the necessary correlations in a more
precise way.
This touches usage sites of the affected functions and data structure
all over the tree, but stays fully backwards compatible for the
existing user space exposed interfaces. New PTP IOCTLs will provide
access to the extended functionality in later kernel versions"
* tag 'timers-ptp-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (28 commits)
ptp: vmclock: Use hw_cycles from snapshot for precise TSC pairing
x86/kvmclock: Implement read_snapshot() for kvmclock clocksource
clocksource/hyperv: Implement read_snapshot() for TSC page clocksource
timekeeping: Add clocksource read_snapshot() method and hw_cycles to snapshot
ptp: Switch to ktime_get_snapshot_id() for pre/post timestamps
timekeeping: Add support for AUX clock cross timestamping
timekeeping: Remove system_device_crosststamp::sys_realtime
ALSA: hda/common: Use system_device_crosststamp::sys_systime
wifi: iwlwifi: Use system_device_crosststamp::sys_systime
ptp: Use system_device_crosststamp::sys_systime
timekeeping: Prepare for cross timestamps on arbitrary clock IDs
timekeeping: Remove ktime_get_snapshot()
virtio_rtc: Use provided clock ID for history snapshot
net/mlx5: Use provided clock ID for history snapshot
igc: Use provided clock ID for history snapshot
ice/ptp: Use provided clock ID for history snapshot
wifi: iwlwifi: Adopt PTP cross timestamps to core changes
timekeeping: Add CLOCK ID to system_device_crosststamp
timekeeping: Add system_counterval_t to struct system_device_crosststamp
timekeeping: Add CLOCK_AUX support for ktime_get_snapshot_id()
...
|
||
|
Linus Torvalds
|
a53fcff8fc |
Updates for the NOHZ subsystem:
- Fix a long standing TOCTOU in get_cpu_sleep_time_us()
- Make the CPU offline NOHZ handling more robust by disabling NOHZ on the
outgoing CPU early instead of creating unneeded state which needs to be
undone.
- Unify idle CPU time accounting instead of having two different
accounting mechanisms. These two different mechanisms are not really
independent, but the different properties can in the worst case cause
that gloabl idle time can be observed going backwards.
- Consolidate the idle/iowait time retrieval interfaces instead of
converting back and forth between them.
- Make idle interrupt time accounting more robust. The original code
assumes that interrupt time accouting is enabled and therefore stops
elapsing idle time while an interrupt is handled in NOHZ dyntick
state. That assumption is not correct as interrupt time accounting can
be disabled at compile and runtime.
- Fix an accounting error between dyntick idle time and dyntick idle
steal time. The stolen time is not accounted and therefore idle time
becomes inaccurate. The stolen time is now accounted after the fact as
there is no way to predict the steal time upfront.
-----BEGIN PGP SIGNATURE-----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=+cVw
-----END PGP SIGNATURE-----
Merge tag 'timers-nohz-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull NOHZ updates from Thomas Gleixner:
- Fix a long standing TOCTOU in get_cpu_sleep_time_us()
- Make the CPU offline NOHZ handling more robust by disabling NOHZ on
the outgoing CPU early instead of creating unneeded state which needs
to be undone.
- Unify idle CPU time accounting instead of having two different
accounting mechanisms. These two different mechanisms are not really
independent, but the different properties can in the worst case cause
that gloabl idle time can be observed going backwards.
- Consolidate the idle/iowait time retrieval interfaces instead of
converting back and forth between them.
- Make idle interrupt time accounting more robust. The original code
assumes that interrupt time accouting is enabled and therefore stops
elapsing idle time while an interrupt is handled in NOHZ dyntick
state. That assumption is not correct as interrupt time accounting
can be disabled at compile and runtime.
- Fix an accounting error between dyntick idle time and dyntick idle
steal time. The stolen time is not accounted and therefore idle time
becomes inaccurate. The stolen time is now accounted after the fact
as there is no way to predict the steal time upfront.
* tag 'timers-nohz-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
sched/cputime: Handle dyntick-idle steal time correctly
sched/cputime: Handle idle irqtime gracefully
sched/cputime: Provide get_cpu_[idle|iowait]_time_us() off-case
tick/sched: Consolidate idle time fetching APIs
tick/sched: Account tickless idle cputime only when tick is stopped
tick/sched: Remove unused fields
tick/sched: Move dyntick-idle cputime accounting to cputime code
tick/sched: Remove nohz disabled special case in cputime fetch
tick/sched: Unify idle cputime accounting
s390/time: Prepare to stop elapsing in dynticks-idle
powerpc/time: Prepare to stop elapsing in dynticks-idle
sched/cputime: Correctly support generic vtime idle time
sched/cputime: Remove superfluous and error prone kcpustat_field() parameter
sched/idle: Handle offlining first in idle loop
tick/sched: Fix TOCTOU in nohz idle time fetch
|
||
|
Linus Torvalds
|
a60ce761d9 |
Updates for the time/timer core subsystem:
- Harden the user space controllable hrtimer interfaces further to
protect against unpriviledged DoS attempts by arming timers in the past.
- Add per-capacity hierarchies to the timer migration code to prevent
timer migration accross different capacity domains. This code has been
disabled last minute as there is a pathological problem with SoCs which
advertise a larger number of capacity domains. The problem is under
investigation and the code won't be active before v7.3, but that turned
out to be less intrusive than a full revert as it preserves the
preparatory steps and allows people to work on the final resolution
- Export time namespace functionality as a recent user can be built as a
module.
- Initialize the jiffies clocksource before using it. The recent
hardening against time moving backward requires that the related
members of struct clocksource have been initialized, otherwise it
clamps the readout to 0, which makes time stand sill and causes boot
delays.
- Fix a more than twenty year old PID reference count leak in an error
path of the POSIX CPU timer code.
- The usual small fixes, improvements and cleanups all over the place.
-----BEGIN PGP SIGNATURE-----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=KRcs
-----END PGP SIGNATURE-----
Merge tag 'timers-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull timer core updates from Thomas Gleixner:
"Updates for the time/timer core subsystem:
- Harden the user space controllable hrtimer interfaces further to
protect against unpriviledged DoS attempts by arming timers in the
past.
- Add per-capacity hierarchies to the timer migration code to prevent
timer migration accross different capacity domains. This code has
been disabled last minute as there is a pathological problem with
SoCs which advertise a larger number of capacity domains. The
problem is under investigation and the code won't be active before
v7.3, but that turned out to be less intrusive than a full revert
as it preserves the preparatory steps and allows people to work on
the final resolution
- Export time namespace functionality as a recent user can be built
as a module.
- Initialize the jiffies clocksource before using it. The recent
hardening against time moving backward requires that the related
members of struct clocksource have been initialized, otherwise it
clamps the readout to 0, which makes time stand sill and causes
boot delays.
- Fix a more than twenty year old PID reference count leak in an
error path of the POSIX CPU timer code.
- The usual small fixes, improvements and cleanups all over the
place"
* tag 'timers-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (31 commits)
posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path
time/jiffies: Register jiffies clocksource before usage
timers/migration: Temporarily disable per capacity hierarchies
timers/migration: Turn tmigr_hierarchy level_list into a flexible array
timers/migration: Deactivate per-capacity hierarchies under nohz_full
timers/migration: Fix hotplug migrator selection target on asymetric capacity machines
ntsync: Honour caller's time namespace for absolute MONOTONIC timeouts
time/namespace: Export init_time_ns and do_timens_ktime_to_host()
timers/migration: Update stale @online doc to @available
timers: Fix flseep() typo in kernel-doc comment
hrtimer: Fix the bogus return type of __hrtimer_start_range_ns()
hrtimer: Return ktime_t from hrtimer_get_next_event()/hrtimer_next_event_without()
clocksource: Clean up clocksource_update_freq() functions
alarmtimer: Remove stale return description from alarm_handle_timer()
selftests/posix_timers: Use CLOCK_THREAD_CPUTIME_ID for ITIMER_PROF measurements
scripts/timers: Add timer_migration_tree.py
timers/migration: Handle capacity in connect tracepoints
timers/migration: Split per-capacity hierarchies
timers/migration: Track CPUs in a hierarchy
timers/migration: Abstract out hierarchy to prepare for CPU capacity awareness
...
|
||
|
Linus Torvalds
|
f20e2fdaae |
Updates for clocksource/clockevent drivers:
- Add devm helpers for clocksources, which allows to simplify driver
teardown and probe failure handling.
- More module conversion work
- Update the support for the ARM EL2 virtual timer including the required
ACPI changes.
- Add clockevent and clocksource support for the TI Dual Mode Timer
- Fix the support for multiple watchdog instances in the TEGRA186 driver
- Add D1 timer support to the SUN5I driver
- The usual devicetree updates, cleanups and small fixes all over the place
-----BEGIN PGP SIGNATURE-----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=4vQE
-----END PGP SIGNATURE-----
Merge tag 'timers-clocksource-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull clocksource updates from Thomas Gleixner:
"Updates for clocksource/clockevent drivers:
- Add devm helpers for clocksources, which allows to simplify driver
teardown and probe failure handling.
- More module conversion work
- Update the support for the ARM EL2 virtual timer including the
required ACPI changes.
- Add clockevent and clocksource support for the TI Dual Mode Timer
- Fix the support for multiple watchdog instances in the TEGRA186
driver
- Add D1 timer support to the SUN5I driver
- The usual devicetree updates, cleanups and small fixes all over the
place"
* tag 'timers-clocksource-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (24 commits)
clocksource: move NXP timer selection to drivers/clocksource
clocksource/drivers/timer-tegra186: Reserve and service a kernel watchdog
clocksource/drivers/timer-tegra186: Register all accessible watchdog timers
clocksource/drivers/timer-tegra186: Correct num_wdts for Tegra186 and Tegra234
clocksource/drivers/timer-tegra186: Fix support for multiple watchdog instances
clocksource/drivers/timer-ti-dm: Add clockevent support
clocksource/drivers/timer-ti-dm: Add clocksource support
clocksource/drivers/timer-ti-dm: Fix property name in comment
dt-bindings: timer: arm,arch_timer: Fix requirements for interrupt description
clocksource/drivers/arm_arch_timer: Default to EL2 virtual timer when running VHE
ACPI: GTDT: Parse information related to the EL2 virtual timer
ACPI: GTDT: Account for GTDTv3 size when walking the platform timer descriptors
clocksource: Add devm_clocksource_register_*() helpers
clocksource/drivers/sun5i: Add D1 hstimer support
dt-bindings: timer: allwinner,sun5i-a13-hstimer: add H616 and D1
dt-bindings: timer: Add StarFive JHB100 clint
dt-bindings: timer: renesas,rz-mtu3: document RZ/{T2H,N2H}
dt-bindings: timer: renesas,rz-mtu3: Remove TCIU8 interrupt
dt-bindings: timer: Remove sifive,fine-ctr-bits property
clocksource/drivers/timer-of: Make the code compatible with modules
...
|
||
|
Linus Torvalds
|
9e94480d81 |
Two small updates to the SMP/hotplug subsystem:
- Add cpuhplock.h to the maintained files
- Provide the missing stubs for lockdep_is_cpus_held() and
lockdep_is_cpus_write_held() so the usage sites can be simplified.
-----BEGIN PGP SIGNATURE-----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=vUm0
-----END PGP SIGNATURE-----
Merge tag 'smp-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull smp core updates from Thomas Gleixner:
"Two small updates to the SMP/hotplug subsystem:
- Add cpuhplock.h to the maintained files
- Provide the missing stubs for lockdep_is_cpus_held() and
lockdep_is_cpus_write_held() so the usage sites can be simplified"
* tag 'smp-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
cpu: Add lockdep_is_cpus_held()/lockdep_is_cpus_write_held() stubs for !CONFIG_HOTPLUG_CPU
MAINTAINERS: Add include/linux/cpuhplock.h to CPU HOTPLUG area
|
||
|
Linus Torvalds
|
8f45c6ce49 |
A trivial update to the MSI interrupt subsystem, which fixes a couple of
typos. -----BEGIN PGP SIGNATURE----- iQJEBAABCgAuFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmotia4QHHRnbHhAa2Vy bmVsLm9yZwAKCRCmGPVMDXSYobqBD/9Is9EpnjZg2C3Q3nrPcaAvkXsxvbXLRFPm en/sA4f7pwG6hBmamuxTCc8I9FGID7U+XALwvb7oDWAldXc9RYMf40iXMhhEWr79 BYFfh50Crxm1FQk9NfY/asNCyGZAfVnIZ75LBk5GHpThjDMguW7n4p4CTIGxQgYm YfL5cqEJZbNQAlSU3e9m3t6nS/Re6eHrycYYrCXbkfBEK06GKj8ooD7Lj2Y/10dz PV/s4Rf8+0gjKqBkba5hFru/7pdGgQYsc/wrNK5c61ENUU+Kpszd3jed/yNU1AEp 9XsQLTmMKvUf+3ZkxIRbCsYcEXN1WNskBlCUagMQHnRkiUq6dT8HnpL4tz4LBO2A WqCVzJimW2R5BLzor0MyduIrcfly4GNrn1+ceWjTTVRp4I/CZ95iPtKthsfl6zC8 NyhMEVFjd5zUwhySuGwkZs3chiQKy9lf7Mw6R+6fVivzIin8vdXu9ULz9/sb0J3K x0CO+WOknkpVp6/UfgiWgxshx+lpzDIdF5PPuof6dw4wHE3JXy0rS642AbLte+D3 RQ6RhAMSVpQ6tHxtxMeJuxI54kxtA5PQ22UPPz8PHt8YATUmTIABmC+E4FuN8ax/ NqSWmKLosw1CaE9q4LO1wHcG26f4VnxasB2eHVjwV0W9JBoIQHLZFJ9h3Xo7nkY+ P45uZ+PJlg== =ELZn -----END PGP SIGNATURE----- Merge tag 'irq-msi-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip Pull MSI irq update from Thomas Gleixner: "A trivial update to the MSI interrupt subsystem, which fixes a couple of typos" * tag 'irq-msi-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: genirq/msi: Fix typos in msi_domain_ops comment |
||
|
Linus Torvalds
|
857ae5a445 |
Interrupt chip driver changes:
- Replace the support for the AST2700-A0 early silicon with a proper
driver for the final A2 production silicon
- Rename and rework the StarFive JH8100 interrupt controller for the new
JHB100 SoC as JH8100 was discontinued before production.
- Add support for Amlogic A9 SoCs to the meson-gpio interrupt controller
- Expand the Econet interrupt controller driver to support MIPS 34Kc
Vectored External Interrupt Controller mode.
- Prevent a NULL pointer dereference in the GICv4 code as the vLPI code
blindly assumes that the ITS was populated. Add the missing sanity check.
- Add support for software triggered and for error interrupts to the
Renesas RZ/T2H driver.
- Add interrupt redirection support for the loongarch architecture.
- Add multicore support to the Realtek RTL interrupt driver
- The usual updates, enhancements and fixes all over the place
-----BEGIN PGP SIGNATURE-----
iQJEBAABCgAuFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmotiUMQHHRnbHhAa2Vy
bmVsLm9yZwAKCRCmGPVMDXSYoVI1D/9hTno8fq6LtgB/YbY81m6Ulf6uHTiLzwkl
bRd/62h99W/moP+teVapIbh00swIP7gc2tcS9JJ1Jh8rXcr+ePe5305MV0JvyywP
Kiyv8GFLoviWKsekieDGnRJeX630toB4VonOKJHY47q6xBqwVspf5vHlK6jCKWbB
QdLHTWJ2dbrwTu8vDRSA3J2u3/cZco9UxABrT0m/JMyDrJSIft9tkTNIrHVjfQyO
OeDhZ4qTCGkvY6yOFQ4T+2e2s4D+Uz4FGoUo8q2Usrmt/c2fCqdrkVhIH6mIRzN0
tC183K+eqhEGmoQ6/HjQfHZqULimHxkD4To6jZLjJ26L2aHjW/9yGIjX4JYVpFn9
nWRaWcx9Bc16uauIHdPclHMJr9sDNGuBGNeHiPC0XcVzj8kjSnkR/N9axQ9FPM4j
xoqrVC576A5oe/nMqfdVmVFbTDApgS05kHpinCe+Y4jZPZGpzPvULJiIfEwQbw+M
C3xXSGiy7dxG0S84tx03AvNvewtw9UFwXLxLftHIYQ6arCul/m8eRpErjneQhcnf
sbH5Hgkk4V37QsLwn1w51yuqeg+N/SOnLnkld93sXJhPEzaPenwbiteIKPsargng
9DR9DVDtskAnESj/UNHhSuaQvbRHyYh3IYbudC2iqAGCOkp3+Qzd9UKPJ/mbJHe3
DMAl9mbZLw==
=zJc2
-----END PGP SIGNATURE-----
Merge tag 'irq-drivers-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull interrupt chip driver updates from Thomas Gleixner:
- Replace the support for the AST2700-A0 early silicon with a proper
driver for the final A2 production silicon
- Rename and rework the StarFive JH8100 interrupt controller for the
new JHB100 SoC as JH8100 was discontinued before production.
- Add support for Amlogic A9 SoCs to the meson-gpio interrupt
controller
- Expand the Econet interrupt controller driver to support MIPS 34Kc
Vectored External Interrupt Controller mode.
- Prevent a NULL pointer dereference in the GICv4 code as the vLPI code
blindly assumes that the ITS was populated. Add the missing sanity
check.
- Add support for software triggered and for error interrupts to the
Renesas RZ/T2H driver.
- Add interrupt redirection support for the loongarch architecture.
- Add multicore support to the Realtek RTL interrupt driver
- The usual updates, enhancements and fixes all over the place
* tag 'irq-drivers-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (32 commits)
irqchip/irq-realtek-rtl: Add multicore support
irqchip/irq-realtek-rtl: Add/simplify register helpers
irqchip/loongarch-ir: Add IR (interrupt redirection) irqchip support
irqchip/loongarch-avec: Return IRQ_SET_MASK_OK_DONE when keep affinity
irqchip/loongarch-avec: Prepare for interrupt redirection support
Docs/LoongArch: Add advanced extended IRQ model
irqchip/qcom-pdc: Use FIELD_GET() to extract bank index and bit position
irqchip/qcom-pdc: Add PDC_VERSION() macro to describe version register fields
irqchip/qcom-pdc: Tighten ioremap clamp to single DRV region size
irqchip/qcom-pdc: Split __pdc_enable_intr() into per-version helpers
irqchip/exynos-combiner: Remove useless spinlock
irqchip/renesas-rzt2h: Add error interrupts support
irqchip/renesas-rzt2h: Add software-triggered interrupts support
irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed
irqchip/gic-v3-its: Use FIELD_MODIFY()
irqchip/econet-en751221: Support MIPS 34Kc VEIC mode
dt-bindings: interrupt-controller: econet: Add CPU interrupt mapping
irqchip/meson-gpio: Add support for Amlogic A9 SoCs
dt-bindings: interrupt-controller: Add support for Amlogic A9 SoCs
irqchip/meson-gpio: Use the correct register in meson_s4_gpio_irq_set_type()
...
|
||
|
Linus Torvalds
|
13e1a6d6a1 |
Interrupt core code changes:
- Rework of /proc/interrupt handling:
/proc/interrupts was subject to micro optimizations for a long time,
but most of the low hanging fruit was left on the table. This rework
addresses the major time consuming issues:
- Printing a long series of zeros one by one via a format string
instead of counting subsequent zeros and emitting a string
constant.
- Simplify and cache the conditions whether interrupts should be printed
- Use a proper iteration over the interrupt descriptor xarray
instead of walking and testing one by one.
- Provide helper functions for the architecture code to emit the
architecture specific counters
- Convert the counter structure in x86 to an array, which
simplifies the output and add mechanisms to suppress unused
architecture interrupts, which just occupy space for
nothing. Adopt the new core mechanisms.
This adjusts the gdb scripts related to interrupt counter statitics
to work with the new mechanisms.
- Prevent a string overflow in the /proc/irq/$N/ directory name
creation code.
-----BEGIN PGP SIGNATURE-----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=z6vj
-----END PGP SIGNATURE-----
Merge tag 'irq-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
Pull interrupt core updates from Thomas Gleixner:
- Rework of /proc/interrupt handling:
/proc/interrupts was subject to micro optimizations for a long time,
but most of the low hanging fruit was left on the table. This rework
addresses the major time consuming issues:
- Printing a long series of zeros one by one via a format string
instead of counting subsequent zeros and emitting a string
constant.
- Simplify and cache the conditions whether interrupts should be
printed
- Use a proper iteration over the interrupt descriptor xarray
instead of walking and testing one by one.
- Provide helper functions for the architecture code to emit the
architecture specific counters
- Convert the counter structure in x86 to an array, which
simplifies the output and add mechanisms to suppress unused
architecture interrupts, which just occupy space for nothing.
Adopt the new core mechanisms.
This adjusts the gdb scripts related to interrupt counter statistics
to work with the new mechanisms.
- Prevent a string overflow in the /proc/irq/$N/ directory name
creation code.
* tag 'irq-core-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
x86/irq: Add missing 's' back to thermal event printout
genirq/proc: Speed up /proc/interrupts iteration
genirq/proc: Runtime size the chip name
genirq: Expose irq_find_desc_at_or_after() in core code
genirq: Add rcuref count to struct irq_desc
genirq/proc: Increase default interrupt number precision to four
genirq: Calculate precision only when required
genirq: Cache the condition for /proc/interrupts exposure
genirq/manage: Make NMI cleanup RT safe
genirq: Expose nr_irqs in core code
scripts/gdb: Update x86 interrupts to the array based storage
x86/irq: Move IOAPIC misrouted and PIC/APIC error counts into irq_stats
x86/irq: Suppress unlikely interrupt stats by default
x86/irq: Make irqstats array based
genirq/proc: Utilize irq_desc::tot_count to avoid evaluation
genirq/proc: Avoid formatting zero counts in /proc/interrupts
x86/irq: Optimize interrupts decimals printing
genirq/proc: Size interrupt directory names for 10-digit interrupt numbers
|
||
|
Linus Torvalds
|
a04c8472b0 |
A trivial update for RSEQ selftests to provide the config fragments which
contain the config options required to actually run the tests. -----BEGIN PGP SIGNATURE----- iQJEBAABCgAuFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmotg88QHHRnbHhAa2Vy bmVsLm9yZwAKCRCmGPVMDXSYodtaD/42rFTpCyz77IFYikQm60ppxIFCbxYB/1D4 RdoBeWVNVeKX91+X2qe54XrK1E50tGzc5+2Bu/QNf/jEUCC+dGibCffshoIY1KPj +NLSrVIctta/AfLl046RoByqhpWUnyLPmA+st5UraUtXR3S38bqPQ0XLhJXMCzOu 4fwu6xl9oZ1hoX4nyCd6R7irBg71qS1rpXgAzDa1wSpaJmyLUlKYfLaOg+6/fTo6 3q9o7iWt5rJODVMDkCCr7canMUBzulksICrJ2V//keeeCa+88yV2oKQ8AQvZzv00 yQsksAjOnVISAAfBP6RA4CCxgSogKmDeTr4YWPDtOLP2bPelBEDxKh4nM1v1tTqS dlBqh4WOI1vGpDglOKgClgybzoQogC9MKRlr+jq/VcE8VJGjZiQBmm+LLi3uhRrw BDGhrXbRVyQo9JVXVHIbgBxYDtGe/o+Zwrr70LVyiUMWaNPcbEMmOnm2CpsxriV4 zEkDKKmlHmX9LRn6CF9HbW9X3aCJiN6RPh28grjSxZb6UFB8htMuPDHN5XKBmvo4 NWFfgTkShh4HiX/Vl/WtV7QQ/NgQh5KESPBZtZA4kmAFgu2Pbh6ESk+UNsagx/97 cBipodzv7H71yY9hsZyBMDBFSj1T/1rzZNKl19I0dCXGPSoUGxJK0JYWkgvgucvy KRCpyQ75ZA== =l514 -----END PGP SIGNATURE----- Merge tag 'core-rseq-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip Pull rseq update from Thomas Gleixner: "A trivial update for RSEQ selftests to provide the config fragments which contain the config options required to actually run the tests" * tag 'core-rseq-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: selftests/rseq: Add config fragment |
||
|
Linus Torvalds
|
36808d5e98 |
Driver core changes for 7.2-rc1
- deferred probe:
- Fix race where deferred probe timeout work could be permanently
canceled by using mod_delayed_work()
- Fix missing jiffies conversion in deferred_probe_extend_timeout()
- Guard timeout extension with delayed_work_pending() to prevent
premature firing
- Use system_percpu_wq instead of the deprecated system_wq
- Update deferred_probe_timeout documentation
- device:
- Replace direct struct device bitfield access (can_match, dma_iommu,
dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
of_node_reused, offline, offline_disabled) with flag-based
accessors using bit operations
- Reject devices with unregistered buses
- Delete unused DEVICE_ATTR_PREALLOC()
- Add low-level device attribute macros with const show/store
callbacks, allowing device attributes to reside in read-only memory
- Move core device attributes to read-only memory
- Constify group array pointers in driver_add_groups() /
driver_remove_groups(), struct bus_type, and struct device_driver
- device property:
- Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
- Initialize all fields of fwnode_handle in fwnode_init()
- Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
- Allow passing struct software_node_ref_args pointers directly to
PROPERTY_ENTRY_REF()
- driver_override:
- Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
infrastructure, fixing a UAF from unsynchronized access to
driver_override in bus match() callbacks
- Remove the now-unused driver_set_override()
- firmware loader:
- Fix recursive lock deadlock in device_cache_fw_images() when async
work falls back to synchronous execution
- Fix device reference leak in firmware_upload_register()
- platform:
- Pass KBUILD_MODNAME through the platform driver registration macro
to create module symlinks in sysfs for built-in drivers; move
module_kset initialization to a pure_initcall and tegra cbb
registration to core_initcall to ensure correct ordering
- Pass THIS_MODULE implicitly through a coresight_init_driver() macro
- sysfs:
- Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
WARN
- Add return value clamping to sysfs_kf_read()
- Rust:
- ACPI:
- Fix missing match data for PRP0001 by exporting
acpi_of_match_device()
- Auxiliary:
- Replace drvdata() with dedicated registration data on
auxiliary_device. drvdata() exposed the driver's bus device
private data beyond the driver's own scope, creating ordering
constraints and forcing the data to outlive all registrations
that access it. Registration data is instead scoped structurally
to the Registration object, making lifecycle ordering enforced
by construction rather than convention.
- Rust-native device driver lifetimes (HRT):
- Allow Rust device drivers to carry a lifetime parameter on their
bus device private data, tied to the device binding scope -- the
interval during which a bus device is bound to a driver. Device
resources like pci::Bar<'a> and IoMem<'a> can be stored directly
in the driver's bus device private data with a lifetime bounded
by the binding scope, so the compiler enforces at build time that
they do not outlive the binding. This removes Devres indirection
from every access site and eliminates try_access() failure paths
in destructors.
Bus driver traits use a Generic Associated Type (GAT)
Data<'bound> to introduce the lifetime on the private data,
rather than parameterizing the Driver trait itself. Auxiliary
registration data, where the lifetime is not introduced by a
trait callback but must be threaded through Registration, uses
the ForLt trait (a type-level abstraction for types generic over
a lifetime).
- Misc:
- Fix DT overlayed devices not probing by reverting the broken
treewide overlay fix and re-running fw_devlink consumer pickup when
an overlay is applied to a bound device
- Use root_device_register() for faux bus root device; add sanity
check for failed bus init
- Fix dev_has_sync_state() data race with READ_ONCE() and move it to
base.h
- Avoid spurious device_links warning when removing a device while
its supplier is unbinding
- Switch ISA bus to dynamic root device
- Fix suspicious RCU usage in kernfs_put()
- Remove devcoredump exit callback
- Constify devfreq_event_class
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQS2q/xV6QjXAdC7k+1FlHeO1qrKLgUCai1lNQAKCRBFlHeO1qrK
LjX1AP4kEb6SJdvBFlG/IJcG9vyqA7+Cig8OIlx9vEX7e7GvNwEAxL2HltAlAd5Q
cOIJOlu0uM+j1mn0JyuM9b0WJrxDLAA=
=E5mG
-----END PGP SIGNATURE-----
Merge tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core updates from Danilo Krummrich:
"Deferred probe:
- Fix race where deferred probe timeout work could be permanently
canceled by using mod_delayed_work()
- Fix missing jiffies conversion in deferred_probe_extend_timeout()
- Guard timeout extension with delayed_work_pending() to prevent
premature firing
- Use system_percpu_wq instead of the deprecated system_wq
- Update deferred_probe_timeout documentation
device:
- Replace direct struct device bitfield access (can_match, dma_iommu,
dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
of_node_reused, offline, offline_disabled) with flag-based
accessors using bit operations
- Reject devices with unregistered buses
- Delete unused DEVICE_ATTR_PREALLOC()
- Add low-level device attribute macros with const show/store
callbacks, allowing device attributes to reside in read-only memory
- Move core device attributes to read-only memory
- Constify group array pointers in driver_add_groups() /
driver_remove_groups(), struct bus_type, and struct device_driver
device property:
- Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
- Initialize all fields of fwnode_handle in fwnode_init()
- Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
- Allow passing struct software_node_ref_args pointers directly to
PROPERTY_ENTRY_REF()
driver_override:
- Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
infrastructure, fixing a UAF from unsynchronized access to
driver_override in bus match() callbacks
- Remove the now-unused driver_set_override()
firmware loader:
- Fix recursive lock deadlock in device_cache_fw_images() when async
work falls back to synchronous execution
- Fix device reference leak in firmware_upload_register()
platform:
- Pass KBUILD_MODNAME through the platform driver registration macro
to create module symlinks in sysfs for built-in drivers; move
module_kset initialization to a pure_initcall and tegra cbb
registration to core_initcall to ensure correct ordering
- Pass THIS_MODULE implicitly through a coresight_init_driver() macro
sysfs:
- Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
WARN
- Add return value clamping to sysfs_kf_read()
Rust:
- ACPI:
Fix missing match data for PRP0001 by exporting
acpi_of_match_device()
- Auxiliary:
Replace drvdata() with dedicated registration data on
auxiliary_device. drvdata() exposed the driver's bus device private
data beyond the driver's own scope, creating ordering constraints
and forcing the data to outlive all registrations that access it.
Registration data is instead scoped structurally to the
Registration object, making lifecycle ordering enforced by
construction rather than convention.
- Rust-native device driver lifetimes (HRT):
Allow Rust device drivers to carry a lifetime parameter on their
bus device private data, tied to the device binding scope -- the
interval during which a bus device is bound to a driver. Device
resources like pci::Bar<'a> and IoMem<'a> can be stored directly in
the driver's bus device private data with a lifetime bounded by the
binding scope, so the compiler enforces at build time that they do
not outlive the binding. This removes Devres indirection from every
access site and eliminates try_access() failure paths in
destructors.
Bus driver traits use a Generic Associated Type (GAT) Data<'bound>
to introduce the lifetime on the private data, rather than
parameterizing the Driver trait itself. Auxiliary registration
data, where the lifetime is not introduced by a trait callback but
must be threaded through Registration, uses the ForLt trait (a
type-level abstraction for types generic over a lifetime).
Misc:
- Fix DT overlayed devices not probing by reverting the broken
treewide overlay fix and re-running fw_devlink consumer pickup when
an overlay is applied to a bound device
- Use root_device_register() for faux bus root device; add sanity
check for failed bus init
- Fix dev_has_sync_state() data race with READ_ONCE() and move it to
base.h
- Avoid spurious device_links warning when removing a device while
its supplier is unbinding
- Switch ISA bus to dynamic root device
- Fix suspicious RCU usage in kernfs_put()
- Remove devcoredump exit callback
- Constify devfreq_event_class"
* tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core: (81 commits)
software node: allow passing reference args to PROPERTY_ENTRY_REF()
driver core: platform: set mod_name in driver registration
coresight: pass THIS_MODULE implicitly through a macro
kernel: param: initialize module_kset in a pure_initcall
soc/tegra: cbb: Move driver registration from pure_initcall to core_initcall
firmware_loader: Fix recursive lock in device_cache_fw_images()
driver core: Use system_percpu_wq instead of system_wq
driver core: remove driver_set_override()
rpmsg: use generic driver_override infrastructure
Drivers: hv: vmbus: use generic driver_override infrastructure
cdx: use generic driver_override infrastructure
amba: use generic driver_override infrastructure
rust: devres: add 'static bound to Devres<T>
samples: rust: rust_driver_auxiliary: showcase lifetime-bound registration data
rust: auxiliary: generalize Registration over ForLt
rust: types: add `ForLt` trait for higher-ranked lifetime support
gpu: nova-core: separate driver type from driver data
samples: rust: rust_driver_pci: use HRT lifetime for Bar
rust: io: make IoMem and ExclusiveIoMem lifetime-parameterized
rust: pci: make Bar lifetime-parameterized
...
|
||
|
Linus Torvalds
|
5504ce0317 |
Power management updates for 7.2-rc1
- Fix a race between cpufreq suspend and CPU hotplug during system
shutdown (Tianxiang Chen)
- Avoid redundant target() calls for unchanged limits and fix a typo
in a comment in the cpufreq core (Viresh Kumar)
- Fix concurrency issues related to sysfs attributes access that affect
cpufreq governors using the common governor code (Zhongqiu Han)
- Simplify frequency limit handling in the conservative cpufreq
governor (Lifeng Zheng)
- Fix descriptions of the conservative governor freq_step tunable and
the ondemand governor sampling_down_factor tunable in the cpufreq
documentation (Pengjie Zhang)
- Fix use-after-free and double free during _OSC evaluation in the PCC
cpufreq driver (Yuho Choi)
- Rework the handling of policy min and max frequency values in the
cpufreq core to allow drivers to specify special initial values for
the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
Gondois)
- Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
Imran Shaik).
- Improve the warning message on HWP-disabled hybrid processors printed
by the intel_pstate driver and sync policy->cur during CPU offline in
it (Yohei Kojima, Fushuai Wang)
- Drop cpufreq support for AMD Elan SC4* (Sean Young)
- Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep Kaur,
Hans Zhang, Guangshuo Li, Xueqin Luo)
- Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
Braha)
- Allow the intel_idle driver to avoid exposing C-states that are
redundant when PC6 is disabled (Artem Bityutskiy)
- Fix memory leak and a potential race in the OPP core (Abdun Nihaal,
Di Shen)
- Mark Rust OPP methods as inline (Nicolás Antinori)
- Fix misc device registration failure path in the PM QoS core (Yuho
Choi)
- Add sysctl interface for DPM watchdog timeouts (Tzung-Bi Shih)
- Use complete() instead of complete_all() in device_pm_sleep_init() to
avoid a false-positive warning from lockdep_assert_RT_in_threaded_ctx()
when CONFIG_PROVE_RAW_LOCK_NESTING is enabled (Jiakai Xu)
- Use a flexible array for CRC uncompressed buffers during hibernation
image saving (Rosen Penev)
- Make the LZ4 algorithm available for hibernation compression (l1rox3)
- Move the preallocate_image() call during hibernation after the
"prepare" phase of the "freeze" transition (Matthew Leach)
- Fix a memory leak in rapl_add_package_cpuslocked() in the intel_rapl
power capping driver and use sysfs_emit() in cpumask_show() in that
driver (Sumeet Pawnikar, Yury Norov)
- Fix ValueError when parsing incomplete device properties in the
pm-graph utility (Gongwei Li)
-----BEGIN PGP SIGNATURE-----
iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmor9R8SHHJqd0Byand5
c29ja2kubmV0AAoJEO5fvZ0v1OO1ODoIAInJsQeeWGXfUq4hAFnoA/gtS2oBw7Kw
QVjoGG/DUbM/+ZtlbUee27pqvaYRY+q/Tv9RWKkl5vckASPFIAgCjImbm0g3P7Rz
9OgoBwppqv0Yn5whFgc7nt9jOa7FQKV+jHiJgzRqwMxDFLkk0LldYVzsYpB6m+Lx
Kca0LBeSv8o16EZX7RChC+6W7E5UhGxekSg9AzMPJTCe0gKciwARYiBhbSU5nAlI
WdL5j+ycR3QTApbHA2tueaPKa1qnomLwJscmsE6UxlbikfcCBFZ9EvIsBnwl1WM4
EcPA57IAYcr29N9Cdh/cs6MFkpWdzDBOs/ECZsgdI6fUWniQrPINThI=
=oafL
-----END PGP SIGNATURE-----
Merge tag 'pm-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"Over a half of the changes here are cpufreq updates that include core
modifications, fixes of the old-style governors, new hardware support
in drivers, assorded driver fixes and cleanups, and the removal of one
driver (AMD Elan SC4*).
Apart from that, the intel_idle driver will now be able to avoid
exposing redundant C-states if PC6 is disabled and there are new
sysctl knobs for device suspend/resume watchdog timeouts, hibernation
gets built-in LZ4 support for image compression and there is the usual
collection of assorted fixes and cleanups.
Specifics:
- Fix a race between cpufreq suspend and CPU hotplug during system
shutdown (Tianxiang Chen)
- Avoid redundant target() calls for unchanged limits and fix a typo
in a comment in the cpufreq core (Viresh Kumar)
- Fix concurrency issues related to sysfs attributes access that
affect cpufreq governors using the common governor code (Zhongqiu
Han)
- Simplify frequency limit handling in the conservative cpufreq
governor (Lifeng Zheng)
- Fix descriptions of the conservative governor freq_step tunable and
the ondemand governor sampling_down_factor tunable in the cpufreq
documentation (Pengjie Zhang)
- Fix use-after-free and double free during _OSC evaluation in the
PCC cpufreq driver (Yuho Choi)
- Rework the handling of policy min and max frequency values in the
cpufreq core to allow drivers to specify special initial values for
the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
Gondois)
- Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
Imran Shaik).
- Improve the warning message on HWP-disabled hybrid processors
printed by the intel_pstate driver and sync policy->cur during CPU
offline in it (Yohei Kojima, Fushuai Wang)
- Drop cpufreq support for AMD Elan SC4* (Sean Young)
- Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep
Kaur, Hans Zhang, Guangshuo Li, Xueqin Luo)
- Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
Braha)
- Allow the intel_idle driver to avoid exposing C-states that are
redundant when PC6 is disabled (Artem Bityutskiy)
- Fix memory leak and a potential race in the OPP core (Abdun Nihaal,
Di Shen)
- Mark Rust OPP methods as inline (Nicolás Antinori)
- Fix misc device registration failure path in the PM QoS core (Yuho
Choi)
- Add sysctl interface for DPM watchdog timeouts (Tzung-Bi Shih)
- Use complete() instead of complete_all() in device_pm_sleep_init()
to avoid a false-positive warning from lockdep_assert_RT_in_threaded_ctx()
when CONFIG_PROVE_RAW_LOCK_NESTING is enabled (Jiakai Xu)
- Use a flexible array for CRC uncompressed buffers during
hibernation image saving (Rosen Penev)
- Make the LZ4 algorithm available for hibernation compression
(l1rox3)
- Move the preallocate_image() call during hibernation after the
"prepare" phase of the "freeze" transition (Matthew Leach)
- Fix a memory leak in rapl_add_package_cpuslocked() in the
intel_rapl power capping driver and use sysfs_emit() in
cpumask_show() in that driver (Sumeet Pawnikar, Yury Norov)
- Fix ValueError when parsing incomplete device properties in the
pm-graph utility (Gongwei Li)"
* tag 'pm-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (40 commits)
PM: dpm_watchdog: Add sysctl interface for DPM watchdog timeouts
PM: QoS: Fix misc device registration unwind
cpufreq: Use policy->min/max init as QoS request
cpufreq: Remove driver default policy->min/max init
cpufreq: Set default policy->min/max values for all drivers
cpufreq: Extract cpufreq_policy_init_qos() function
cpufreq: Documentation: fix conservative governor freq_step description
cpufreq: ti: Add EPROBE_DEFER for K3 SoCs
cpufreq: qcom: Add cpufreq scaling support for Qualcomm Shikra SoC
dt-bindings: cpufreq: Document Qualcomm Shikra SoC EPSS
powercap: intel_rapl: Use sysfs_emit() in cpumask_show()
cpufreq: governor: Fix stale prev_cpu_nice spike when enabling ignore_nice_load
cpufreq: governor: Fix data races on per-CPU idle/nice baselines
PM: hibernate: Use flexible array for CRC uncompressed buffers
powercap: intel_rapl: Fix memory leak in rapl_add_package_cpuslocked()
PM: hibernate: make LZ4 available for hibernation compression
PM: sleep: Use complete() in device_pm_sleep_init()
opp: rust: mark OPP methods as inline
cpufreq: intel_pstate: Improve warning message on HWP-disabled hybrid CPUs
cpufreq: elanfreq: Drop support for AMD Elan SC4*
...
|
||
|
Linus Torvalds
|
f3c4a338b5 |
Thermal control updates for 7.2-rc1
- Rework the initialization and cleanup of thermal class cooling
devices to separate DT-based cooling device registration and
cooling device registration without DT (Daniel Lezcano, Ovidiu
Panait)
- Update the cooling device DT bindings to support 3-cell cooling
device representation, where the additional cell holds an ID to
select a cooling mechanism for devices that offer multiple cooling
mechanisms, and adjust the cooling device registration code
accordingly (Gaurav Kohli, Daniel Lezcano)
- Remove dead code from two functions in the thermal core and simplify
the unregistration of thermal governors (Rafael Wysocki)
- Fix critical temperature attribute removal handling in the generic
thermal zone hwmon support code and rework that code to register a
separate hwmon class device for each thermal zone (instead of using
one hwmon class device for all thermal zones of the same type) to
address thermal zone removal deadlocks (Rafael Wysocki)
- Use attribute groups for adding temperature attributes to hwmon class
devices associated with thermal zones (Rafael Wysocki)
- Pass WQ_UNBOUND when allocating the thermal workqueue (Marco
Crivellari)
- Fix potential shift overflow in ptc_mmio_write() and improve error
handling in proc_thermal_ptc_add() in the int340x thermal control
driver (Aravind Anilraj)
- Use sysfs_emit() for cpumask printing in the Intel powerclamp thermal
driver (Yury Norov)
- Add Arrow Lake CPU models to the intel_tcc_cooling driver (Srinivas
Pandruvada)
- Add QCom Nord, Shikra and Hawi temperature sensor DT bindings (Deepti
Jaggi, Gaurav Kohli, Dipa Ramesh Mantre)
- Use devm_add_action_or_reset() for clock disable on the NVidia
soctherm and switch it to devm cooling device registration version
(Daniel Lezcano)
- Add the Amlogic T7 thermal sensor along with thermal calibration
data read from SMC calls (Ronald Claveau)
- Fix atomic temperature read in the QCom tsens driver to comply with
hardware documentation (Priyansh Jain)
- Add SpacemiT K1 thermal sensor support (Shuwei Wu)
- Add i.MX93 temperature sensor support and filter out the invalid
temperature (Jacky Bai)
- Enable by default the TMU (Thermal Monitoring Unit) on Exynos
platform (Krzysztof Kozlowski)
- Rework interrupt initialization in the Tsens driver and add the
optional wakeup source (Priyansh Jain)
- Fix typo in a comment in the TSens QCom driver (Jinseok Kim)
- Fix trailing whitespace and repeated word in the OF code, remove
quoted string splitting across lines from the iMX7 driver, and remove
a stray space from the thermal_trip_of_attr() macro definition (Mayur
Kumar)
- Update the thermal testing facility code to avoid NULL pointer
dereferences by rejecting missing command arguments and replace
sscanf() with kstrtoint() or kstrtoul() in that code (Ovidiu Panait,
Samuel Moelius)
-----BEGIN PGP SIGNATURE-----
iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmor9mMSHHJqd0Byand5
c29ja2kubmV0AAoJEO5fvZ0v1OO1VGcH/0abvuB55F8kuN6udDVxKcEbwTK0uLs2
R2lsLm6pqV6PGJ6wK6dy0wjlf9fhzoQLEmJwInBgt4NIrIV6WY7L8MTk35y477q7
NDqF2IuwClbpT2f3ojfVHdZNa5tu7Z+WV/Ohc40Pc7AeCU3TRk6mnFrY/aTkr4Ej
CLCEVwOFt1g5wCzyZGzX65lXXRT/dYKcVM+wgX6pXeOcdhIRAVOnQDFa0H7i0blD
AW5BLbZe29guD1GPmwjCgY/H/dwsTYR0GSgdTK90b1njOPgVVDAKXNO7oVa4rOmU
L4JralFt1sj3UQqAwJ8q8etl+BzsQIzLGtYwYEfrZUe4NnhcUwk8qGU=
=MVHT
-----END PGP SIGNATURE-----
Merge tag 'thermal-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add new hardware support (i.MX93 TMU, Amlogic T7, Intel Arrow
Lake, QCom Nord, Shikra and Hawi), fix issues in a number of places in
the thermal control core and drivers, clean up code and refactor it in
preparation for future changes:
- Rework the initialization and cleanup of thermal class cooling
devices to separate DT-based cooling device registration and
cooling device registration without DT (Daniel Lezcano, Ovidiu
Panait)
- Update the cooling device DT bindings to support 3-cell cooling
device representation, where the additional cell holds an ID to
select a cooling mechanism for devices that offer multiple cooling
mechanisms, and adjust the cooling device registration code
accordingly (Gaurav Kohli, Daniel Lezcano)
- Remove dead code from two functions in the thermal core and
simplify the unregistration of thermal governors (Rafael Wysocki)
- Fix critical temperature attribute removal handling in the generic
thermal zone hwmon support code and rework that code to register a
separate hwmon class device for each thermal zone (instead of using
one hwmon class device for all thermal zones of the same type) to
address thermal zone removal deadlocks (Rafael Wysocki)
- Use attribute groups for adding temperature attributes to hwmon
class devices associated with thermal zones (Rafael Wysocki)
- Pass WQ_UNBOUND when allocating the thermal workqueue (Marco
Crivellari)
- Fix potential shift overflow in ptc_mmio_write() and improve error
handling in proc_thermal_ptc_add() in the int340x thermal control
driver (Aravind Anilraj)
- Use sysfs_emit() for cpumask printing in the Intel powerclamp
thermal driver (Yury Norov)
- Add Arrow Lake CPU models to the intel_tcc_cooling driver (Srinivas
Pandruvada)
- Add QCom Nord, Shikra and Hawi temperature sensor DT bindings
(Deepti Jaggi, Gaurav Kohli, Dipa Ramesh Mantre)
- Use devm_add_action_or_reset() for clock disable on the NVidia
soctherm and switch it to devm cooling device registration version
(Daniel Lezcano)
- Add the Amlogic T7 thermal sensor along with thermal calibration
data read from SMC calls (Ronald Claveau)
- Fix atomic temperature read in the QCom tsens driver to comply with
hardware documentation (Priyansh Jain)
- Add SpacemiT K1 thermal sensor support (Shuwei Wu)
- Add i.MX93 temperature sensor support and filter out the invalid
temperature (Jacky Bai)
- Enable by default the TMU (Thermal Monitoring Unit) on Exynos
platform (Krzysztof Kozlowski)
- Rework interrupt initialization in the Tsens driver and add the
optional wakeup source (Priyansh Jain)
- Fix typo in a comment in the TSens QCom driver (Jinseok Kim)
- Fix trailing whitespace and repeated word in the OF code, remove
quoted string splitting across lines from the iMX7 driver, and
remove a stray space from the thermal_trip_of_attr() macro
definition (Mayur Kumar)
- Update the thermal testing facility code to avoid NULL pointer
dereferences by rejecting missing command arguments and replace
sscanf() with kstrtoint() or kstrtoul() in that code (Ovidiu
Panait, Samuel Moelius)"
* tag 'thermal-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits)
thermal: sysfs: Replace sscanf() with kstrtoul()
thermal: testing: Replace sscanf() with kstrtoint()
thermal: testing: reject missing command arguments
thermal: intel: intel_tcc_cooling: Add Arrow Lake CPU models
thermal/drivers/qcom/tsens: Disable wakeup interrupt setup on automotive targets
thermal/drivers/qcom/tsens: Switch wake IRQ handling to PM callbacks
thermal/core: Fix missing stub for devm_thermal_cooling_device_register
dt-bindings: thermal: cooling-devices: Update support for 3 cells cooling device
thermal/of: Support cooling device ID in cooling-spec
thermal/of: Pass cdev_id and introduce devm registration helper
thermal/of: Add cooling device ID support
thermal/of: Rename the devm_thermal_of_cooling_device_register() function
thermal/core: Make cooling device OF node conditional on CONFIG_THERMAL_OF
thermal/of: Move cooling device OF helpers out of thermal core
hwmon: Use non-OF thermal cooling device registration API
thermal/core: Add devm_thermal_cooling_device_register()
thermal/core: Introduce non-OF thermal_cooling_device_register()
thermal/drivers/samsung: Enable TMU by default
thermal/driver/qoriq: Workaround unexpected temperature readings from tmu
thermal/drivers/qoriq: Add i.MX93 tmu support
...
|
||
|
Linus Torvalds
|
eed451031f |
ACPI support updates for 7.2-rc1
- Fix multiple issues related to probe, removal and missing NVDIMM
device notifications in the ACPI NFIT driver (Rafael Wysocki)
- Add support for devres-based management of ACPI notify handlers to
the ACPI core (Rafael Wysocki)
- Switch multiple core ACPI device drivers (including the ACPI PAD,
ACPI video bus, ACPI HED, ACPI thermal zone, ACPI AC, ACPI battery,
and ACPI NFIT drivers) over to using devres-based resource management
during probe (Rafael Wysocki)
- Replace mutex_lock/unlock() with guard()/scoped_guard() in the ACPI
PMIC driver (Maxwell Doose)
- Fix message kref handling in the dead device path of the ACPI IPMI
address space handler (Yuho Choi)
- Use sysfs_emit() in idlecpus_show() in the ACPI processor aggregator
device (PAD) driver (Yury Norov)
- Clean up device_id_scheme initialization in the ACPI video bus driver
(Jean-Ralph Aviles)
- Clean up lid handling in the ACPI button driver and
acpi_button_probe(), reorganize installing and removing event
handlers in that driver and switch it over to using devres-based
resource management during probe (Rafael Wysocki)
- Add support for the Legacy Virtual Register (LVR) field in I2C serial
bus resource descriptors to ACPICA (Akhil R)
- Fix multiple issues related to bounds checks, input validation,
use-after-free, and integer overflow checks in the AML interpreter
in ACPICA (ikaros)
- Update the copyright year to 2026 in ACPICA files and make minor
changes related to ACPI 6.6 support (Pawel Chmielewski)
- Remove spurious precision from format used to dump parse trees in
ACPICA (David Laight)
- Add modern standby DSM GUIDs to ACPICA header files (Daniel Schaefer)
- Fix FADT 32/64X length mismatch warning in ACPICA (Abdelkader Boudih)
- Update D3hot/cold device power states definitions in ACPICA header
files (Aymeric Wibo)
- Fix NULL pointer dereference in acpi_ns_custom_package() (Weiming
Shi)
- Update ACPICA version to 20260408 (Saket Dumbre)
- Add cpuidle driver check in acpi_processor_register_idle_driver() to
avoid evaluating _CST unnecessarily (Tony W Wang-oc)
- Suppress UBSAN warning caused by field misuse during PCC-based
register access in the ACPI CPPC library (Jeremy Linton)
- Add support for CPPC v4 to the ACPI CPPC library (Sumit Gupta)
- Update the ACPI device enumeration code to honor _DEP for ACPI0016
PCI/CXL host bridges and make the ACPI PCI root driver clear _DEP
dependencies for PCI roots that have become operational (Chen Pei)
-----BEGIN PGP SIGNATURE-----
iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmor9doSHHJqd0Byand5
c29ja2kubmV0AAoJEO5fvZ0v1OO1CHIH/RmPCEVBKA/xhPofJEUQVLBBVsSDREHW
IqKDQ+eo14bAUtc3zClc9jh3IoqRLMaqNUSmogFiKUvBT3pXhMdSjN4uFMO/tX3E
zI06j4ZygkfAr0vX4EhAE4FtPd7HUCYa7DImVlu4cs91srSW7CqFSCkgmW7JMDcu
CJXmO62Au81I0DdGuHDeNjaIgu5zL4bC7+F4F3oFKX0wj3aC4V1OCXtJ/WILC4e0
Y8cLees7wsbiK2FAMJd4Js8hcLukDD8YJm75QvsTTIoEBGy1U8zzDXhkFWQFauIy
Mvpg9uAZ1DMeGLRrgndo/Dvpfv+si4SgZZ59zhX1AC3rZQHGfwv5Zn8=
=95gg
-----END PGP SIGNATURE-----
Merge tag 'acpi-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream version
20260408, introduce support for devres-based management of ACPI notify
handlers and update some core ACPI device drivers on top of that
(which includes some fixes and cleanups), add _DEP support for PCI/CXL
roots and Intel CVS devices, fix a couple of assorted issues and clean
up code:
- Fix multiple issues related to probe, removal and missing NVDIMM
device notifications in the ACPI NFIT driver (Rafael Wysocki)
- Add support for devres-based management of ACPI notify handlers to
the ACPI core (Rafael Wysocki)
- Switch multiple core ACPI device drivers (including the ACPI PAD,
ACPI video bus, ACPI HED, ACPI thermal zone, ACPI AC, ACPI battery,
and ACPI NFIT drivers) over to using devres-based resource
management during probe (Rafael Wysocki)
- Replace mutex_lock/unlock() with guard()/scoped_guard() in the ACPI
PMIC driver (Maxwell Doose)
- Fix message kref handling in the dead device path of the ACPI IPMI
address space handler (Yuho Choi)
- Use sysfs_emit() in idlecpus_show() in the ACPI processor
aggregator device (PAD) driver (Yury Norov)
- Clean up device_id_scheme initialization in the ACPI video bus
driver (Jean-Ralph Aviles)
- Clean up lid handling in the ACPI button driver and
acpi_button_probe(), reorganize installing and removing event
handlers in that driver and switch it over to using devres-based
resource management during probe (Rafael Wysocki)
- Add support for the Legacy Virtual Register (LVR) field in I2C
serial bus resource descriptors to ACPICA (Akhil R)
- Fix multiple issues related to bounds checks, input validation,
use-after-free, and integer overflow checks in the AML interpreter
in ACPICA (ikaros)
- Update the copyright year to 2026 in ACPICA files and make minor
changes related to ACPI 6.6 support (Pawel Chmielewski)
- Remove spurious precision from format used to dump parse trees in
ACPICA (David Laight)
- Add modern standby DSM GUIDs to ACPICA header files (Daniel
Schaefer)
- Fix FADT 32/64X length mismatch warning in ACPICA (Abdelkader
Boudih)
- Update D3hot/cold device power states definitions in ACPICA header
files (Aymeric Wibo)
- Fix NULL pointer dereference in acpi_ns_custom_package() (Weiming
Shi)
- Update ACPICA version to 20260408 (Saket Dumbre)
- Add cpuidle driver check in acpi_processor_register_idle_driver()
to avoid evaluating _CST unnecessarily (Tony W Wang-oc)
- Suppress UBSAN warning caused by field misuse during PCC-based
register access in the ACPI CPPC library (Jeremy Linton)
- Add support for CPPC v4 to the ACPI CPPC library (Sumit Gupta)
- Update the ACPI device enumeration code to honor _DEP for ACPI0016
PCI/CXL host bridges and make the ACPI PCI root driver clear _DEP
dependencies for PCI roots that have become operational (Chen Pei)"
* tag 'acpi-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
ACPI: processor: Add cpuidle driver check in acpi_processor_register_idle_driver()
ACPI: IPMI: Fix message kref handling on dead device
ACPI: CPPC: Suppress UBSAN warning caused by field misuse
ACPI: scan: Honor _DEP for Intel CVS devices
ACPI: NFIT: core: Fix possible deadlock and missing notifications
ACPI: NFIT: core: Eliminate redundant local variable
ACPI: NFIT: core: Fix acpi_nfit_init() error cleanup
ACPI: NFIT: core: Fix possible NULL pointer dereference
ACPI: bus: Clean up devm_acpi_install_notify_handler()
ACPI: button: Switch over to devres-based resource management
ACPI: button: Reorganize installing and removing event handlers
ACPI: button: Use string literals for generating netlink messages
ACPI: button: Clean up adding and removing lid procfs interface
ACPI: button: Merge two switch () statements in acpi_button_probe()
ACPI: button: Drop redundant variable from acpi_button_probe()
ACPI: button: Rework device verification during probe
ACPI: CPPC: Add support for CPPC v4
ACPI: PAD: Use sysfs_emit() in idlecpus_show()
ACPI: scan: Honor _DEP for ACPI0016 PCI/CXL host bridge
ACPI: PCI: Clear _DEP dependencies after PCI root bridge attach
...
|
||
|
Linus Torvalds
|
966240b990 |
nolibc changes for 7.2
Highlights: * New architectures: OpenRISC and 32-bit parisc * New library functionality: alloca(), assert(), creat() and ftruncate() * Automatic large file support * Proper 64-bit system call argument passing on x32 and MIPS N32 * Cleanups of the testmatrix * Various bugfixes and cleanups -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTg4lxklFHAidmUs57B+h1jyw5bOAUCai5uXwAKCRDB+h1jyw5b OND2AP9tiHFoTxtVjCm9nl5YnngL6Hb1jxEJJuAhyRGG3XMd+AEA0wzA0IdSBRGM d99EqrECYHNRdFUMYdmTTus9L/4f5g4= =Yaqn -----END PGP SIGNATURE----- Merge tag 'nolibc-20260614-for-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc Pull nolibc updates from Thomas Weißschuh: - New architectures: OpenRISC and 32-bit parisc - New library functionality: alloca(), assert(), creat() and ftruncate() - Automatic large file support - Proper 64-bit system call argument passing on x32 and MIPS N32 - Cleanups of the testmatrix - Various bugfixes and cleanups * tag 'nolibc-20260614-for-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: (37 commits) selftests/nolibc: test against -Wwrite-strings selftests/nolibc: use mutable buffer for execve() argv string tools/nolibc: cast default values of program_invocation_name tools/nolibc: add ftruncate() tools/nolibc: add a helper to split a 64-bit argument into 32-bit halves selftests/nolibc: enable CONFIG_TMPFS for sparc32 tools/nolibc: stackprotector: Avoid stalling program startup if crng is not init yet tools/nolibc: getopt: Fix potential out of bounds access selftests/nolibc: test open mode handling tools/nolibc: always pass mode to open syscall tools/nolibc: split open mode handling into a macro tools/nolibc: split implicit open flags into a macro tools/nolibc: add support for 32-bit parisc selftests/nolibc: avoid function pointer comparisons tools/nolibc: add support for OpenRISC / or1k selftests/nolibc: use vmlinux for MIPS tests selftests/nolibc: trim IMAGE mappings selftests/nolibc: trim DEFCONFIG mappings selftests/nolibc: trim QEMU_ARCH mappings selftests/nolibc: use QEMU_ARCH for QEMU_ARCH_USER ... |
||
|
Linus Torvalds
|
b079329b86 |
Rust changes for v7.2
Toolchain and infrastructure:
- Introduce support for the 'zerocopy' library [1][2]:
Fast, safe, compile error. Pick two.
Zerocopy makes zero-cost memory manipulation effortless. We write
`unsafe` so you don't have to.
It essentially provides derivable traits (e.g. 'FromBytes') and
macros (e.g. 'transmute!') for safely converting between byte
sequences and other types. Having such support allows us to remove
some 'unsafe' code.
It is among the most downloaded Rust crates and it is also used by
the Rust compiler itself.
It is licensed under "BSD-2-Clause OR Apache-2.0 OR MIT".
The crates are imported essentially as-is (only +2/-3 lines needed
to be adapted), plus SPDX identifiers. Upstream has since added the
SPDX identifiers as well as one of the tweaks at my request, thus
reducing our future diffs on updates -- I keep the details in one of
our usual live lists [3].
In total, it is about ~39k lines added, ~32k without counting
'benches/' which are just for documentation purposes.
The series includes a few Kbuild and rust-analyzer improvements and
an example patch using it in Nova, removing one 'unsafe impl'.
I checked that the codegen of an isolated example function (similar
to the Nova patch on top) is essentially identical. It also turns out
that (for that particular case) the 'zerocopy' version, even with
'debug-assertions' enabled, has no remaining panics, unlike a few in
the current code (since the compiler can prove the remaining
'ub_checks' statically).
So their "fast, safe" does indeed check out -- at least in that case.
Link: https://github.com/google/zerocopy [1]
Link: https://docs.rs/zerocopy [2]
Link: https://github.com/Rust-for-Linux/linux/issues/1239 [3]
- Support AutoFDO. This allows Rust code to be profiled and optimized
based on the profile. Tested with Rust Binder: ~13% slower without
AutoFDO in the binderAddInts benchmark (using an app-launch benchmark
for the profile).
- Support Software Tag-Based KASAN.
In addition, fix KASAN Kconfig by requiring Clang.
- Add Kconfig options for each existing Rust KUnit test suite, such as
'CONFIG_RUST_BITMAP_KUNIT_TEST'. They are placed within a new menu,
'CONFIG_RUST_KUNIT_TESTS', in the new 'rust/kernel/Kconfig.test'
file.
- Support the upcoming Rust 1.98.0 release (expected 2026-08-20): lint
cleanups and an unstable flag rename.
- Disable 'rustdoc' documentation inlining for all prelude items, which
bloats the generated documentation.
- Ignore (in Git) and clean (in Kbuild) the (rarely) 'rustc'-generated
'*.long-type-*.txt' files.
'kernel' crate:
- Add new 'bitfield' module with the 'bitfield!' macro (extracted from
the existing 'register!' one), which declares integer types that are
split into distinct bit fields of arbitrary length.
Each field is a 'Bounded' of the appropriate bit width (ensuring
values are properly validated and avoiding implicit data loss) and
gets several generated getters and setters (infallible, 'const' and
fallible) as well as associated constants ('_MASK', '_SHIFT' and
'_RANGE'). It also supports fields that can be converted from/to
custom types, either fallibly ('?=>') or infallibly ('=>').
For instance:
bitfield! {
struct Rgb(u16) {
15:11 blue;
10:5 green;
4:0 red;
}
}
// Compile-time checks.
let color = Rgb::zeroed().with_const_green::<0x1f>();
assert_eq!(color.green(), 0x1f);
assert_eq!(color.into_raw(), 0x1f << Rgb::GREEN_SHIFT);
Add as well documentation and a test suite for it, as usual; and
update the 'register!' macro to use it.
It will be maintained by Alexandre Courbot (with Yury Norov as
reviewer) under a new 'MAINTAINERS' entry: 'RUST [BITFIELD]'.
- 'ptr' module: rework index projection syntax into keyworded syntax
and introduce panicking variant.
The keyword syntax ('build:', 'try:', 'panic:') is more explicit and
paves the way of perhaps adding more flavors in the future, e.g. an
'unsafe' index projection.
For instance, projections now look like this:
fn f(p: *const [u8; 32]) -> Result {
// Ok, within bounds, checked at build time.
project!(p, [build: 1]);
// Build error.
project!(p, [build: 128]);
// `OutOfBound` runtime error (convertible to `ERANGE`).
project!(p, [try: 128]);
// Runtime panic.
project!(p, [panic: 128]);
Ok(())
}
Update as well the users, which now look like e.g.
// Pointer to the first entry of the GSP message queue.
let data = project!(self.0.as_ptr(), .gspq.msgq.data[build: 0]);
- 'build_assert' module: make the module the home of its macros instead
of rendering them twice.
- 'sync' module: add 'UniqueArc::as_ptr()' associated function.
- 'alloc' module:
+ Fix the 'Vec::reserve()' doctest to properly account for the
existing vector length in the capacity assertion.
+ Fix an incorrect operator in the 'Vec::extend_with()' 'SAFETY'
comment; add a doc test demonstrating basic usage and the
zero-length case.
- Clean imports across several modules to follow the "kernel vertical"
import style in order to minimize conflicts.
'pin-init' crate:
- User visible changes:
+ Do not generate 'non_snake_case' warnings for identifiers that are
syntactically just users of a field name. This would allow all
'#[allow(non_snake_case)]' in nova-core to be removed, which Gary
will send to the nova tree next cycle.
+ Filter non-cfg attributes out properly in derived structs. This
improves pin-init compatibility with other derive macros.
+ Insert projection types' where clause properly.
- Other changes:
+ Bump MSRV to 1.82, plus associated cleanups.
+ Overhaul how init slots are projected. The new approach is easier
to justify with safety comments.
+ Mark more functions as inline, which should help mitigate the
super-long symbol name issue due to lack of inlining.
rust-analyzer:
- Support '--envs' for passing env vars for crates like 'zerocopy'.
'MAINTAINERS':
- Add the following reviewers to the 'RUST' entry:
+ Daniel Almeida
+ Tamir Duberstein
+ Alexandre Courbot
+ Onur Özkan
They have been involved in the Rust for Linux project for about
7 collective years and bring expertise across several domains, which
will be very useful to have around in the future.
Thanks everyone for stepping up!
And some other fixes, cleanups and improvements.
-----BEGIN PGP SIGNATURE-----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=Setk
-----END PGP SIGNATURE-----
Merge tag 'rust-7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"This one is big due to the vendoring of the `zerocopy` library, which
allows us to replace a bunch of `unsafe` code dealing with conversions
between byte sequences and other types with safe alternatives. More
details on that below (and in its merge commit).
Toolchain and infrastructure:
- Introduce support for the 'zerocopy' library [1][2]:
Fast, safe, compile error. Pick two.
Zerocopy makes zero-cost memory manipulation effortless. We write
`unsafe` so you don't have to.
It essentially provides derivable traits (e.g. 'FromBytes') and
macros (e.g. 'transmute!') for safely converting between byte
sequences and other types. Having such support allows us to remove
some 'unsafe' code.
It is among the most downloaded Rust crates and it is also used by
the Rust compiler itself.
It is licensed under "BSD-2-Clause OR Apache-2.0 OR MIT".
The crates are imported essentially as-is (only +2/-3 lines needed
to be adapted), plus SPDX identifiers. Upstream has since added the
SPDX identifiers as well as one of the tweaks at my request, thus
reducing our future diffs on updates -- I keep the details in one
of our usual live lists [3].
In total, it is about ~39k lines added, ~32k without counting
'benches/' which are just for documentation purposes.
The series includes a few Kbuild and rust-analyzer improvements and
an example patch using it in Nova, removing one 'unsafe impl'.
I checked that the codegen of an isolated example function (similar
to the Nova patch on top) is essentially identical. It also turns
out that (for that particular case) the 'zerocopy' version, even
with 'debug-assertions' enabled, has no remaining panics, unlike a
few in the current code (since the compiler can prove the remaining
'ub_checks' statically).
So their "fast, safe" does indeed check out -- at least in that
case.
- Support AutoFDO. This allows Rust code to be profiled and optimized
based on the profile. Tested with Rust Binder: ~13% slower without
AutoFDO in the binderAddInts benchmark (using an app-launch
benchmark for the profile).
- Support Software Tag-Based KASAN.
In addition, fix KASAN Kconfig by requiring Clang.
- Add Kconfig options for each existing Rust KUnit test suite, such
as 'CONFIG_RUST_BITMAP_KUNIT_TEST'.
They are placed within a new menu, 'CONFIG_RUST_KUNIT_TESTS', in
the new 'rust/kernel/Kconfig.test' file.
- Support the upcoming Rust 1.98.0 release (expected 2026-08-20):
lint cleanups and an unstable flag rename.
- Disable 'rustdoc' documentation inlining for all prelude items,
which bloats the generated documentation.
- Ignore (in Git) and clean (in Kbuild) the (rarely) 'rustc'-generated
'*.long-type-*.txt' files.
'kernel' crate:
- Add new 'bitfield' module with the 'bitfield!' macro (extracted
from the existing 'register!' one), which declares integer types
that are split into distinct bit fields of arbitrary length.
Each field is a 'Bounded' of the appropriate bit width (ensuring
values are properly validated and avoiding implicit data loss) and
gets several generated getters and setters (infallible, 'const' and
fallible) as well as associated constants ('_MASK', '_SHIFT' and
'_RANGE'). It also supports fields that can be converted from/to
custom types, either fallibly ('?=>') or infallibly ('=>').
For instance:
bitfield! {
struct Rgb(u16) {
15:11 blue;
10:5 green;
4:0 red;
}
}
// Compile-time checks.
let color = Rgb::zeroed().with_const_green::<0x1f>();
assert_eq!(color.green(), 0x1f);
assert_eq!(color.into_raw(), 0x1f << Rgb::GREEN_SHIFT);
Add as well documentation and a test suite for it, as usual; and
update the 'register!' macro to use it.
It will be maintained by Alexandre Courbot (with Yury Norov as
reviewer) under a new 'MAINTAINERS' entry: 'RUST [BITFIELD]'.
- 'ptr' module: rework index projection syntax into keyworded syntax
and introduce panicking variant.
The keyword syntax ('build:', 'try:', 'panic:') is more explicit
and paves the way of perhaps adding more flavors in the future,
e.g. an 'unsafe' index projection.
For instance, projections now look like this:
fn f(p: *const [u8; 32]) -> Result {
// Ok, within bounds, checked at build time.
project!(p, [build: 1]);
// Build error.
project!(p, [build: 128]);
// `OutOfBound` runtime error (convertible to `ERANGE`).
project!(p, [try: 128]);
// Runtime panic.
project!(p, [panic: 128]);
Ok(())
}
Update as well the users, which now look like e.g.
// Pointer to the first entry of the GSP message queue.
let data = project!(self.0.as_ptr(), .gspq.msgq.data[build: 0]);
- 'build_assert' module: make the module the home of its macros
instead of rendering them twice.
- 'sync' module: add 'UniqueArc::as_ptr()' associated function.
- 'alloc' module:
- Fix the 'Vec::reserve()' doctest to properly account for the
existing vector length in the capacity assertion.
- Fix an incorrect operator in the 'Vec::extend_with()' 'SAFETY'
comment; add a doc test demonstrating basic usage and the
zero-length case.
- Clean imports across several modules to follow the "kernel
vertical" import style in order to minimize conflicts.
'pin-init' crate:
- User visible changes:
- Do not generate 'non_snake_case' warnings for identifiers that
are syntactically just users of a field name. This would allow
all '#[allow(non_snake_case)]' in nova-core to be removed,
which Gary will send to the nova tree next cycle.
- Filter non-cfg attributes out properly in derived structs. This
improves pin-init compatibility with other derive macros.
- Insert projection types' where clause properly.
- Other changes:
- Bump MSRV to 1.82, plus associated cleanups.
- Overhaul how init slots are projected. The new approach is
easier to justify with safety comments.
- Mark more functions as inline, which should help mitigate the
super-long symbol name issue due to lack of inlining.
rust-analyzer:
- Support '--envs' for passing env vars for crates like 'zerocopy'.
'MAINTAINERS':
- Add the following reviewers to the 'RUST' entry:
- Daniel Almeida
- Tamir Duberstein
- Alexandre Courbot
- Onur Özkan
They have been involved in the Rust for Linux project for about 7
collective years and bring expertise across several domains, which
will be very useful to have around in the future.
Thanks everyone for stepping up!
And some other fixes, cleanups and improvements"
Link: https://github.com/google/zerocopy [1]
Link: https://docs.rs/zerocopy [2]
Link: https://github.com/Rust-for-Linux/linux/issues/1239 [3]
* tag 'rust-7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/ojeda/linux: (86 commits)
MAINTAINERS: add Onur Özkan as Rust reviewer
MAINTAINERS: add Alexandre Courbot as Rust reviewer
MAINTAINERS: add Tamir Duberstein as Rust reviewer
MAINTAINERS: add Daniel Almeida as Rust reviewer
kbuild: rust: clean `zerocopy-derive` in `mrproper`
rust: make `build_assert` module the home of related macros
rust: str: clean unused import for Rust >= 1.98
rust: str: use the "kernel vertical" imports style
rust: aref: use the "kernel vertical" imports style
rust: page: use the "kernel vertical" imports style
gpu: nova-core: firmware: parse `FalconUCodeDescV2` via `zerocopy`
rust: prelude: add `zerocopy{,_derive}::FromBytes`
rust: zerocopy-derive: enable support in kbuild
rust: zerocopy-derive: add `README.md`
rust: zerocopy-derive: avoid generating non-ASCII identifiers
rust: zerocopy-derive: add SPDX License Identifiers
rust: zerocopy-derive: import crate
rust: zerocopy: enable support in kbuild
rust: zerocopy: add `README.md`
rust: zerocopy: remove float `Display` support
...
|
||
|
Linus Torvalds
|
b8b674748f |
RCU pull request for v7.2
-----BEGIN PGP SIGNATURE-----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=Hsv1
-----END PGP SIGNATURE-----
Merge tag 'rcu.release.v7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Uladzislau Rezki:
"Torture test updates:
- Improve kvm-series.sh script by adding examples in its header
comment
- Lazy RCU is more fully tested now by replacing call_rcu_hurry()
with call_rcu() and doing rcu_barrier() to motivate lazy callbacks
during a stutter pause
- Add more synonyms for the "--do-normal" group of torture.sh
command-line arguments
Misc changes:
- Reduce stack usage of nocb_gp_wait() to address frame size warning
when built with CONFIG_UBSAN_ALIGNMENT
- The synchronize_rcu() call can detect the flood and latches a
normal/default path temporary switching to wait_rcu_gp() path
- Document using rcu_access_pointer() to fetch the old pointer for
lockless cmpxchg() updates
- Simplify some RCU code using clamp_val()
- Fix a kerneldoc header comment typo in srcu_down_read_fast()"
* tag 'rcu.release.v7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/rcu/linux:
rcu/nocb: reduce stack usage in nocb_gp_wait()
rcu-tasks: Fix possible boot-time tests failed for the call_rcu_tasks()
rcu: Latch normal synchronize_rcu() path on flood
rcu: Document rcu_access_pointer() feeding into cmpxchg()
rcu: Simplify param_set_next_fqs_jiffies() by applying clamp_val()
rcu: Simplify rcu_do_batch() by applying clamp()
checkpatch: Undeprecate rcu_read_lock_trace() and rcu_read_unlock_trace()
srcu: Fix kerneldoc header comment typo in srcu_down_read_fast()
torture: Allow "norm" abbreviation for "normal"
torture: Improve kvm-series.sh header comment
torture: Add torture_sched_set_normal() for user-specified nice values
rcutorture: Fully test lazy RCU
|
||
|
Linus Torvalds
|
95e56f0f29 |
Kernel Concurrency Sanitizer (KCSAN) updates for v7.2
- Silence -Wmaybe-uninitialized when calling __kcsan_check_access() This change has had 6 weeks of linux-next exposure. -----BEGIN PGP SIGNATURE----- iIcEABYKAC8WIQR7t4b/75lzOR3l5rcxsLN3bbyLnwUCaiv6kxEcZWx2ZXJAZ29v Z2xlLmNvbQAKCRAxsLN3bbyLnx7XAQC9a66Dsb62YnYekMt+Ph+/StEm0LxDjnjq tUcalz2THwEA2gr6/9rkjXkKwtxPNCgizJndc0KoRdctXwOGpniBPwU= =woSF -----END PGP SIGNATURE----- Merge tag 'kcsan-20260612-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux Pull KCSAN update from Marco Elver: - Silence -Wmaybe-uninitialized when calling __kcsan_check_access() * tag 'kcsan-20260612-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux: kcsan: Silence -Wmaybe-uninitialized when calling __kcsan_check_access() |
||
|
Linus Torvalds
|
2bfc56d9f5 |
xen: branch for v7.2-rc1
-----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCaivrshsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQgFxhu0/YY75HWAD/UWqFaTfWhpS3mJbcOE8G NTfZMunls/XyAoPxL4T6ThMA/jrdrFMerb27S1xHwKIr84YH71P8naXkiv+71UZz JCkE =Hh59 -----END PGP SIGNATURE----- Merge tag 'for-linus-7.2-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - Several small cleanups of various Xen related drivers (xen/platform-pci, xen-balloon, xenbus, xen/mcelog) - Cleanup for Xen PV-mode related code (includes dropping the Xen debugfs code) - Drop the additional lazy mmu mode tracking done by Xen specific code * tag 'for-linus-7.2-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/xenbus: Replace strcpy() with memcpy() x86/xen: Replace generic lazy tracking with cpu specific one x86/xen: Get rid of last XEN_LAZY_MMU uses mm: Refactor lazy_mmu_mode_pause() and lazy_mmu_mode_resume() x86/xen: Change interface of xen_mc_issue() x86/xen: Drop lazy mode from trace entries x86/xen: Remove Xen debugfs support x86/xen: Cleanup Xen related trace points x86/xen: Guard PV-only stuff in xen-ops.h with CONFIG_XEN_PV xen: balloon: Replace sprintf() with sysfs_emit() xen/mcelog: mark g_physinfo, ncpus and xen_mce_chrdev_device as __ro_after_init xen: constify xsd_errors array xen/platform-pci: Simplify initialization of pci_device_id array |
||
|
Linus Torvalds
|
73f399414a |
Kbuild / Kconfig changes for 7.2
Kbuild:
- Remove broken module linking exclusion for BTF
- Add documentation around how offset header files work
- Include unstripped vDSO libraries in pacman packages
- Bump minimum version of LLVM for building the kernel to 17.0.1 and
clean up unnecessary workarounds
- Use a context manager in run-clang-tools
- Add dist macro value if present to release tag for RPM packages
- Detect and report truncated buf_printf() output in modpost
- Add __llvm_covfun and __llvm_covmap to section whitelist in modpost
- Support Clang's distributed ThinLTO mode
- Remove architecture specific configurations for AutoFDO and Propeller
to ease individual architecture maintenance
Kconfig:
- Add kconfig-sym-check target to look for dangling Kconfig symbol
references and invalid tristate literal values
- Harden against potential NULL pointer dereference
- Fix typo in Kconfig test comment
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQR74yXHMTGczQHYypIdayaRccAalgUCaijIpwAKCRAdayaRccAa
lszAAQD0PuP+a0IejIyubuvEeB0ecG5nvKZIV99veIaivp9J4QD+PwYuPf+Y9A0r
PqiV0IBrnhbmjNrSj8Clt2eHXqa4jg4=
=J1xQ
-----END PGP SIGNATURE-----
Merge tag 'kbuild-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild / Kconfig updates from Nathan Chancellor:
"Kbuild:
- Remove broken module linking exclusion for BTF
- Add documentation around how offset header files work
- Include unstripped vDSO libraries in pacman packages
- Bump minimum version of LLVM for building the kernel to 17.0.1 and
clean up unnecessary workarounds
- Use a context manager in run-clang-tools
- Add dist macro value if present to release tag for RPM packages
- Detect and report truncated buf_printf() output in modpost
- Add __llvm_covfun and __llvm_covmap to section whitelist in modpost
- Support Clang's distributed ThinLTO mode
- Remove architecture specific configurations for AutoFDO and
Propeller to ease individual architecture maintenance
Kconfig:
- Add kconfig-sym-check target to look for dangling Kconfig symbol
references and invalid tristate literal values
- Harden against potential NULL pointer dereference
- Fix typo in Kconfig test comment"
* tag 'kbuild-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (31 commits)
kconfig: tests: fix typo in comment
kconfig: Remove the architecture specific config for Propeller
kconfig: Remove the architecture specific config for AutoFDO
modpost: Add __llvm_covfun and __llvm_covmap to section_white_list
kconfig: add kconfig-sym-check static checker
kbuild: Remove unnecessary 'T' modifier in cmd_ar_builtin_fixup
kbuild: distributed build support for Clang ThinLTO
kbuild: move vmlinux.a build rule to scripts/Makefile.vmlinux_a
scripts: modpost: detect and report truncated buf_printf() output
kbuild: rpm-pkg: append %{?dist} macro to Release tag
run-clang-tools: run multiprocessing.Pool as context manager
compiler-clang.h: Drop explicit version number from "all" diagnostic macro
compiler-clang.h: Remove __cleanup -Wunused-variable workaround
kbuild: Remove check for broken scoping with clang < 17 in CC_HAS_ASM_GOTO_OUTPUT
x86/entry/vdso32: Remove conditional omission of '.cfi_offset eflags'
x86/module: Revert "Deal with GOT based stack cookie load on Clang < 17"
x86/build: Drop unnecessary '-ffreestanding' addition to KBUILD_CFLAGS
scripts/Makefile.warn: Drop -Wformat handling for clang < 16
riscv: Drop tautological condition from TOOLCHAIN_NEEDS_OLD_ISA_SPEC
riscv: Remove tautological condition from selection of ARCH_SUPPORTS_CFI
...
|
||
|
Linus Torvalds
|
de02909ae8 |
configfs work
A couple of fixes (UAF in configfs_lookup() and really old races
introduced when lseek() on configfs directories stopped locking those
directories; impact up to and including UAF).
Fixes aside, the main result is that configfs is finally switched
to tree-in-dcache machinery. It's *not* making use of recursive removal
helpers yet, and it still does the bloody awful "build subtree in full
sight of userland, with possibility of failure halfway through and need
to unroll" that forces the locking model from hell; dealing with that
is a separate patch series, once this one is out of the way. However,
it is using DCACHE_PERSISTENT properly now. And apparmorfs is the sole
remaining user of __simple_{unlink,rmdir}() at that point.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCai8uagAKCRBZ7Krx/gZQ
68DcAQCrG0zPl8BwHlKVVlylAzgjK2lY120bHX36a4+qLmFE4AD9HTeSgqoZ8vAv
XkZl3FY9nwgDhkTJGU1kubt974BnRAA=
=NCvS
-----END PGP SIGNATURE-----
Merge tag 'pull-configfs-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull configfs updates from Al Viro:
"A couple of fixes (UAF in configfs_lookup() and really old races
introduced when lseek() on configfs directories stopped locking those
directories; impact up to and including UAF).
Fixes aside, the main result is that configfs is finally switched to
tree-in-dcache machinery. It's *not* making use of recursive removal
helpers yet, and it still does the bloody awful "build subtree in full
sight of userland, with possibility of failure halfway through and
need to unroll" that forces the locking model from hell; dealing with
that is a separate patch series, once this one is out of the way.
However, it is using DCACHE_PERSISTENT properly now. And apparmorfs is
the sole remaining user of __simple_{unlink,rmdir}() at that point"
* tag 'pull-configfs-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
create_default_group(): pass parent's dentry instead of config_group
configfs_attach_group(): drop the unused parent_item argument
configs_attach_item(): drop unused parent_item argument
configfs_create(): lift parent timestamp updates into callers
kill configfs_drop_dentry()
configfs: mark pinned dentries persistent
configfs: dentry refcount needs to be pinned only once
switch configfs_detach_{group,item}() to passing dentry
configfs_remove_dir(), detach_attrs(): switch to passing dentry
populate_attrs(): move cleanup to the sole caller
populate_group(): move cleanup on failure to the sole caller
configfs_detach_rollback(): pass configfs_dirent instead of dentry
configfs_do_depend_item(): pass configfs_dirent instead of dentry
configfs_depend_prep(): pass configfs_dirent instead of dentry
configfs_detach_prep(): pass configfs_dirent instead of dentry
configfs_mkdir(): use take_dentry_name_snapshot()
configfs: fix lockless traversals of ->s_children
configfs_lookup(): don't leave ->s_dentry dangling on failure
|
||
|
Linus Torvalds
|
8ab34af09f |
This series converts a bunch of unidiomatic uses of d_add()
in ->lookup() instances to equivalent uses of d_splice_alias(), which is the normal mechanism for ->lookup(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCai8qAAAKCRBZ7Krx/gZQ 6wAHAQC+4+VyLatkLbLMOgTEFQEZ7gRdb5soulSc9GrTn1adXQEAhkOmeaC54IAP qCJKWn5ELGt/roLqTWC+FTcgegCFOg4= =1UzW -----END PGP SIGNATURE----- Merge tag 'pull-d_add' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull dentry d_add() cleanups from Al Viro: "This converts a bunch of unidiomatic uses of d_add() in ->lookup() instances to equivalent uses of d_splice_alias(), which is the normal mechanism for ->lookup()" * tag 'pull-d_add' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: gfs2: use d_splice_alias() for ->lookup() return value ntfs: use d_splice_alias() for ->lookup() return value simple_lookup(): use d_splice_alias() for ->lookup() return value ecryptfs: use d_splice_alias() for ->lookup() return value configfs_lookup(): switch to d_splice_alias() tracefs: use d_splice_alias() in ->lookup() instances |
||
|
Linus Torvalds
|
e8a56d6fc8 |
dentry memory safety stuff
* d_alloc_parallel() API change (Neil's with my changes).
* NORCU fixes.
* Reorganization and simplification of dentry eviction logics.
* Simplifying rcu_read_lock() scopes in fs/dcache.c.
* Secondary roots work - getting rid of NFS fake root dentries and
dealing with remaining shrink_dcache_for_umount()/shrink_dentry_list()
races.
* making cursors NORCU (surprisingly easy)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCai8ppAAKCRBZ7Krx/gZQ
67xXAP48lSBS6WyiTztk/ZD/0WFO+EemnxEDXZ0s55ejQ1/uswEApWNMaxBYkzxB
0lgAjKPojjtqYovttP/AHklomSLzMA4=
=llw0
-----END PGP SIGNATURE-----
Merge tag 'pull-dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull dcache updates from Al Viro:
- d_alloc_parallel() API change (Neil's with my changes)
- NORCU fixes
- Reorganization and simplification of dentry eviction logic
- Simplifying rcu_read_lock() scopes in fs/dcache.c
- Secondary roots work - getting rid of NFS fake root dentries and
dealing with remaining shrink_dcache_for_umount() and
shrink_dentry_list() races
- making cursors NORCU (surprisingly easy)
* tag 'pull-dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (22 commits)
make cursors NORCU
nfs: get rid of fake root dentries
wind ->s_roots via ->d_sib instead of ->d_hash
shrink_dentry_tree(): unify the calls of shrink_dentry_list()
shrinking rcu_read_lock() scope in d_alloc_parallel()
d_walk(): shrink rcu_read_lock() scope
document dentry_kill()
adjust calling conventions of lock_for_kill(), fold __dentry_kill() into dentry_kill()
Document rcu_read_lock() use in select_collect2()
Shift rcu_read_{,un}lock() inside fast_dput()
simplify safety for lock_for_kill() slowpath
fold lock_for_kill() and __dentry_kill() into common helper
fold lock_for_kill() into shrink_kill()
shrink_dentry_list(): start with removing from shrink list
d_prune_aliases(): make sure to skip NORCU aliases
kill d_dispose_if_unused()
make to_shrink_list() return whether it has moved dentry to list
select_collect(): ignore dentries on shrink lists if they have positive refcounts
find_acceptable_alias(): skip NORCU aliases with zero refcount
fix a race between d_find_any_alias() and final dput() of NORCU dentries
...
|
||
|
Linus Torvalds
|
79169a1624 |
vfs-7.2-rc1.procfs
Please consider pulling these changes from the signed vfs-7.2-rc1.procfs tag.
Thanks!
Christian
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc
otp1AQD6ONFiqQZJhnHbVg1MJlA8iP80x0qlil0OKGUMOby4NAD+MZymcLjtP+4O
T1b9Uca2/qz+L1F5o7vJAD3OAd4BzQA=
=/KGF
-----END PGP SIGNATURE-----
Merge tag 'vfs-7.2-rc1.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull procfs updates from Christian Brauner:
- Revamp fs/filesystems.c
The file was a mess with a hand-rolled linked list in desperate need
of a cleanup. The filesystems list is now RCU-ified, /proc files can
be marked permanent from outside fs/proc/, and the string emitted
when reading /proc/filesystems is pre-generated and cached instead of
pointer-chasing and printfing entry by entry on every read.
The file is read frequently because libselinux reads it and is linked
into numerous frequently used programs (even ones you would not
suspect, like sed!). Scalability also improves since reference
maintenance on open/close is bypassed.
open+read+close cycle single-threaded (ops/s):
before: 442732
after: 1063462 (+140%)
open+read+close cycle with 20 processes (ops/s):
before: 606177
after:
|
||
|
Linus Torvalds
|
7e0e7bd60d |
vfs-7.2-rc1.misc
Please consider pulling these changes from the signed vfs-7.2-rc1.misc tag.
Thanks!
Christian
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc
ou/zAP9SOUE6n58i0BdhLYw0RA9Ge5tz42e4inSFi4tkgfCrDwEAlxbRHDcMyhWB
dHmx8OW6b5riMrW+lGPMH58RMoTkdQ4=
=3vuc
-----END PGP SIGNATURE-----
Merge tag 'vfs-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Features:
- Reduce pipe->mutex contention by pre-allocating pages outside the
lock in anon_pipe_write().
anon_pipe_write() called alloc_page() once per page while holding
pipe->mutex. The allocation can sleep doing direct reclaim and runs
memcg charging, which extends the critical section and stalls any
concurrent reader on the same mutex. Now up to 8 pages are
pre-allocated before the mutex is taken, leftovers are recycled
into the per-pipe tmp_page[] cache before unlock, and any remainder
is released after unlock, keeping the allocator out of the critical
section on both sides. On a writers x readers sweep with 64KB
writes against a 1 MB pipe throughput improves 6-28% and average
write latency drops 5-22%; under memory pressure - when the cost of
holding the mutex across reclaim is highest - throughput improves
21-48% and latency drops 17-33%. The microbenchmark is added to
selftests.
- uaccess/sockptr: fix the ignored_trailing logic in
copy_struct_to_user() to behave as documented and the usize check
in copy_struct_from_sockptr() for user pointers, and add
copy_struct_{from,to}_bounce_buffer() and copy_struct_to_sockptr()
helpers for upcoming users (IPPROTO_SMBDIRECT, IPPROTO_QUIC).
- bpf: add a sleepable bpf_real_inode() kfunc that resolves the real
inode backing a dentry via d_real_inode(). On overlayfs the inode
attached to the dentry doesn't carry the underlying device
information; this is used by the filesystem restriction BPF program
that was merged into systemd.
- docs: add guidelines for submitting new filesystems, motivated by
the maintenance burden abandoned and untestable filesystems impose
on VFS developers, blocking infrastructure work like folio
conversions and iomap migration.
Fixes:
- libfs: set SB_I_NOEXEC and SB_I_NODEV by default in init_pseudo()
and drop the now-redundant assignments in callers. This began as a
one-line dma-buf fix for a path_noexec() warning; a pseudo
filesystem has no reason not to set SB_I_NOEXEC. All init_pseudo()
callers were audited: the only visible effect is on dma-buf where
SB_I_NOEXEC silences the warning.
- Handle set_blocksize() failures in legacy filesystems (bfs, hpfs,
qnx4, jfs, befs, affs, isofs, minix, ntfs3, omfs). Mounting a
device with a sector size > PAGE_SIZE crashed roughly half of them;
the rest had the same missing error handling pattern. Plus a
follow-up releasing the superblock buffer_head when setting the
minix v3 block size fails.
- mount: honour SB_NOUSER in the new mount API.
- fs/fcntl: fix a SOFTIRQ-unsafe lock order in fasync signaling by
switching the process-group paths of send_sigio() and send_sigurg()
from read_lock(&tasklist_lock) to RCU, matching the single-PID
path.
- vfs: add an FS_USERNS_DELEGATABLE flag and set it for NFS, fixing
delegated NFS mounts (fsopen() in a container with the mount
performed by a privileged daemon) that broke when non-init
s_user_ns was tied to FS_USERNS_MOUNT.
- selftests/namespaces: fix a hang in nsid_test where an unreaped
grandchild kept the TAP pipe write-end open, a waitpid(-1) race in
listns_efault_test, and a false FAIL on kernels without listns()
where the tests should SKIP.
- filelock: fix the break_lease() stub signature for
CONFIG_FILE_LOCKING=n.
- init/initramfs_test: wait for the async initramfs unpacking before
running; the test and do_populate_rootfs() share the parser state.
- fs/coredump: reduce redundant log noise in
validate_coredump_safety().
- iomap: pass the correct length to fserror_report_io() in
__iomap_write_begin().
- backing-file: fix the backing_file_open() kerneldoc.
Cleanups:
- initramfs: refactor the cpio hex header parsing to use hex2bin()
instead of the hand-rolled simple_strntoul() which is reverted, and
extend the initramfs KUnit tests to cover header fields with 0x
prefixes.
- Replace __get_free_pages() and friends with kmalloc()/kzalloc()
across quota, proc, ocfs2/dlm, nilfs2, nfs, nfsd, libfs, jfs, jbd2,
isofs, fuse, select, namespace, configfs, binfmt_misc, bfs, and the
do_mounts init code - part of the larger work of replacing page
allocator calls with kmalloc().
- Use clear_and_wake_up_bit() in unlock_buffer() and
journal_end_buffer_io_sync() instead of open-coding the sequence.
- Drop unused VFS exports: unexport drop_super_exclusive(), remove
start_removing_user_path_at(), and fold __start_removing_path()
into start_removing_path().
- fs/read_write: narrow the __kernel_write() export with
EXPORT_SYMBOL_FOR_MODULES().
- vfs: uapi: retire octal and hex constants in favor of (1 << n) for
the O_ flags. Finding a free bit for a new flag across the
architectures was needlessly hard with the mixed bases.
- dcache: add extra sanity checks of dead dentries in dentry_free()
via a new DENTRY_WARN_ONCE() that also prints d_flags.
- iov_iter: use kmemdup_array() in dup_iter() to harden the
allocation against multiplication overflow.
- fs/pipe: write to ->poll_usage only once.
- vfs: remove an always-taken if-branch in find_next_fd().
- dcache: use kmalloc_flex() for struct external_name in __d_alloc().
- namei: use QSTR() instead of QSTR_INIT() in path_pts().
- sync_file_range: delete dead S_ISLNK code.
- Comment fixes: retire a stale comment in fget_task_next() and fix
assorted spelling mistakes"
* tag 'vfs-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (73 commits)
backing-file: fix backing_file_open() kerneldoc parameter
iomap: pass the correct len to fserror_report_io in __iomap_write_begin
vfs: add FS_USERNS_DELEGATABLE flag and set it for NFS
filelock: fix break_lease() stub signature for CONFIG_FILE_LOCKING=n
vfs: uapi: retire octal and hex numbers in favor of (1 << n) for O_ flags
bpf: add bpf_real_inode() kfunc
fs/read_write: Do not export __kernel_write() to the entire world
libfs: drop redundant SB_I_NOEXEC/SB_I_NODEV in init_pseudo() callers
libfs: set SB_I_NOEXEC and SB_I_NODEV by default in init_pseudo()
mount: honour SB_NOUSER in the new mount API
fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling
selftests/pipe: add pipe_bench microbenchmark
fs/pipe: pre-allocate pages outside pipe->mutex in anon_pipe_write
fs: retire stale comment in fget_task_next()
fs: fix spelling mistakes in comment
bfs: replace get_zeroed_page() with kzalloc()
binfmt_misc: replace __get_free_page() with kmalloc()
configfs: replace __get_free_pages() with kzalloc()
fs/namespace: use __getname() to allocate mntpath buffer
fs/select: replace __get_free_page() with kmalloc()
...
|
||
|
Linus Torvalds
|
ff8747aaca |
vfs-7.2-rc1.xattr
Please consider pulling these changes from the signed vfs-7.2-rc1.xattr tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc oiWnAP9ij5MDXEBgslxe/8YzPbyUjIO9qnEJtkGEzL1Z7cyFyAEA8+iAcs8bZmr7 Pzq0A5x3aK17V+34QkgfRiDTjkv0BgY= =xACw -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull simple_xattr updates from Christian Brauner: "This reworks the simple xattr api to make it more efficient and easier to use for all consumers. The simple_xattr hash table moves from the inode into a per-superblock cache, removing the per-inode overhead for the common case of few or no xattrs. The interface now passes struct simple_xattrs ** so lazy allocation is handled internally instead of by every caller, kernfs xattr operations on kernfs nodes shared between multiple superblocks are properly serialized, and tmpfs constructs "security.foo" xattr names with kasprintf() instead of kmalloc() plus two memcpy()s. A follow-up fix links kernfs nodes to their parent before the LSM init hook runs: with the per-sb cache kernfs_xattr_set() computes the cache via kernfs_root(kn), which faulted on a freshly allocated node when selinux_kernfs_init_security() called into it - reproducible as a NULL pointer dereference on the first cgroup mkdir on SELinux-enabled systems. On top of this bpffs gains support for trusted.* and security.* xattrs so that user space and BPF LSM programs can attach metadata - for example a content hash or a security label - to pinned objects and directories and inspect it uniformly like on other filesystems. The store is in-memory and non-persistent, living only for the lifetime of the mount like everything else in bpffs" * tag 'vfs-7.2-rc1.xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: bpf: Add simple xattr support to bpffs kernfs: link kn to its parent before the LSM init hook simpe_xattr: use per-sb cache simple_xattr: change interface to pass struct simple_xattrs ** tmpfs: simplify constructing "security.foo" xattr names kernfs: fix xattr race condition with multiple superblocks |
||
|
Linus Torvalds
|
ec5d1ae94e |
vfs-7.2-rc1.iomap
Please consider pulling these changes from the signed vfs-7.2-rc1.iomap tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc os7sAPsH6z7HATCG9xOAOmsIwgi7l0u7dMNnU7Xrqs9H3qAjNgD/SJ/Ajw0GMkMP RxJvze9lvkY9hN9avR9thMVF+yE+fgM= =TlkI -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull iomap updates from Christian Brauner: - Add the vfs infrastructure required to implement fs-verity support for XFS with a post-EOF merkle tree: fsverity generates and stores a zero-block hash, and iomap learns to verify data on buffered reads, to handle fsverity during writeback via the new IOMAP_F_FSVERITY flag, and to write fsverity metadata through iomap_fsverity_write(). - Skip the memset of the iomap in iomap_iter() once the iteration is done. In high-IOPS scenarios (4k randread NVMe polling via io_uring) the pointless memset wasted memory write bandwidth; this improves IOPS by about 5% on ext4 and xfs. - Add balance_dirty_pages_ratelimited() to iomap_zero_iter(), aligning it with iomap_write_iter(). This prepares for the exFAT iomap conversion where zeroing beyond valid_size can trigger large-scale zeroing operations that caused memory pressure without throttling. - Remove the over-strict inline data boundary check. If a filesystem provides a valid inline_data pointer and length there is no reason to require that inline data must not cross a page boundary. - Don't make REQ_POLLED imply REQ_NOWAIT, matching the earlier equivalent block layer fix: there are valid cases to poll for I/O completion without REQ_NOWAIT, and REQ_NOWAIT for file system writes is currently not supported as writes aren't idempotent. - Introduce IOMAP_F_ZERO_TAIL for filesystems that maintain a separate valid data length (exFAT, NTFS). For a write starting at or beyond valid_size, __iomap_write_begin() now zeroes only the tail portion of the block while preserving valid data before it, instead of leaving stale data in the page cache. The flag is also added to the iomap trace event strings. * tag 'vfs-7.2-rc1.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: iomap: Add IOMAP_F_ZERO_TAIL flag to trace event strings iomap: introduce iomap_fsverity_write() for writing fsverity metadata iomap: teach iomap to read files with fsverity iomap: introduce IOMAP_F_FSVERITY and teach writeback to handle fsverity fsverity: generate and store zero-block hash iomap: introduce IOMAP_F_ZERO_TAIL flag iomap: don't make REQ_POLLED imply REQ_NOWAIT iomap: remove over-strict inline data boundary check iomap: add dirty page control to iomap_zero_iter iomap: avoid memset iomap when iter is done |
||
|
Linus Torvalds
|
5b7c3f0fe3 |
vfs-7.2-rc1.eventpoll
Please consider pulling these changes from the signed vfs-7.2-rc1.eventpoll tag.
Thanks!
Christian
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc
ouUiAP9oTjqqJEcc50zs79WLZANmgn5+/RONL2c65VHaOh2cHAEA/SWT56OnQ+Rf
debIkResImn7LiEdbOJCp6PId60hIgE=
=Z6mX
-----END PGP SIGNATURE-----
Merge tag 'vfs-7.2-rc1.eventpoll' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull eventpoll updates from Christian Brauner:
- eventpoll clarity refactor
The recent eventpoll UAF fixes (
|
||
|
Linus Torvalds
|
c8ed3a15a7 |
vfs-7.2-rc1.bh
Please consider pulling these changes from the signed vfs-7.2-rc1.bh tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc ohE9AQC1p/bgcyPbHoSvFgBmq63rhwfYK/vcd6JJZ9iGuSNDnQEAq6idE8Wo18+J xVHLzL5K0aNvt0X3SZZS5BlDyeBhjAg= =kkX9 -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.bh' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull buffer_head updates from Christian Brauner: "This removes b_end_io from struct buffer_head. Instead of setting bio->bi_end_io to end_bio_bh_io_sync() which then calls bh->b_end_io(), the new bh_submit() and __bh_submit() interfaces set bio->bi_end_io to the appropriate completion handler directly, replacing two indirect function calls in the completion path with one. It is also one fewer function pointer in the middle of a writable data structure that can be corrupted, it shrinks struct buffer_head from 104 to 96 bytes allowing roughly 7% more buffer_heads to be cached in the same amount of memory, and it removes some atomic operations as the buffer refcount is no longer incremented before calling the end_io handler. All in-tree users (fs/buffer.c itself, ext4, jbd2, ocfs2, gfs2, nilfs2, and md-bitmap) are converted, and submit_bh(), mark_buffer_async_write(), and end_buffer_write_sync() are removed" * tag 'vfs-7.2-rc1.bh' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (34 commits) buffer: Remove end_buffer_write_sync() buffer: Change calling convention for end_buffer_read_sync() buffer: Remove b_end_io buffer: Remove submit_bh() md-bitmap: Convert read_file_page and write_file_page to bh_submit() nilfs2: Convert nilfs_mdt_submit_block to bh_submit() nilfs2: Convert nilfs_gccache_submit_read_data to bh_submit() nilfs2: Convert nilfs_btnode_submit_block to bh_submit() buffer: Remove mark_buffer_async_write() gfs2: Convert gfs2_aspace_write_folio to bh_submit() gfs2: Remove use of b_end_io in gfs2_meta_read_endio() gfs2: Convert gfs2_dir_readahead to bh_submit() gfs2: Convert gfs2_metapath_ra to bh_submit() ocfs2: Convert ocfs2_write_super_or_backup to bh_submit() ocfs2: Convert ocfs2_read_blocks to bh_submit() ocfs2: Convert ocfs2_read_block to bh_submit() ocfs2: Convert ocfs2_write_block to bh_submit() jbd2: Convert jbd2_write_superblock() to bh_submit() jbd2: Convert journal commit to bh_submit() ext4: Convert ext4_commit_super() to bh_submit() ... |
||
|
Linus Torvalds
|
c17fdf62ae |
vfs-7.2-rc1.writeback
Please consider pulling these changes from the signed vfs-7.2-rc1.writeback tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc ojA3AP9ZzkUfzQy42N7OfpvgTAIy7TYJ5xPVsK+8e5dNE2D3cgD/X3PZTvapuJUT vlQcxL7Q7dGttPVkL0T5fGviZhKuUgo= =6QcP -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs writeback updates from Christian Brauner: - Fix a race between cgroup_writeback_umount() and inode_switch_wbs() When a container exits, a race between cgroup_writeback_umount() and inode_switch_wbs()/cleanup_offline_cgwb() can trigger "VFS: Busy inodes after unmount" followed by a use-after-free on percpu counters. There is a window between inode_prepare_wbs_switch() returning true (having passed the SB_ACTIVE check and grabbed the inode) and the subsequent wb_queue_isw() call: if cgroup_writeback_umount() observes the global isw_nr_in_flight counter as non-zero but flush_workqueue() finds nothing queued yet, it returns early - leaving a held inode reference that blocks evict_inodes() and a later iput() that hits freed percpu counters. The race is closed by covering the window from inode_prepare_wbs_switch() through wb_queue_isw() with an RCU read-side critical section and synchronizing in the umount path. On top of that the now-dead rcu_barrier() left over from the queue_rcu_work() era is removed, and the global synchronize_rcu()/flush_workqueue() pair is replaced with a per-sb in-flight counter plus pin/unpin/drain helpers so umount no longer serializes against switch activity on unrelated superblocks. Under cgroup writeback churn on a 16 vCPU guest this takes umount latency from ~92-138ms p50 down to ~5-8ms p50 and the cumulative cost of cgroup_writeback_umount() from ~62ms to ~4us per call. The initial race fix is kept separate and minimal so it backports cleanly to stable trees that still queue switches via queue_rcu_work(). - Improve write performance with RWF_DONTCACHE Dirty DONTCACHE pages are now tracked per bdi_writeback so that the writeback flusher can be kicked in a targeted fashion for IOCB_DONTCACHE writes instead of relying on global writeback, and the PG_dropbehind flag is preserved when a folio is split. * tag 'vfs-7.2-rc1.writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: mm: kick writeback flusher for IOCB_DONTCACHE with targeted dirty tracking mm: track DONTCACHE dirty pages per bdi_writeback mm: preserve PG_dropbehind flag during folio split writeback: use a per-sb counter to drain inode wb switches at umount writeback: drop now-unnecessary rcu_barrier() in cgroup_writeback_umount() writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() |
||
|
Linus Torvalds
|
0793d39ec8 |
vfs-7.2-rc1.super
Please consider pulling these changes from the signed vfs-7.2-rc1.super tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc ogMFAP9PfdJW1ChpUaOPI7/Oa7Nm74czRh5RLvwduFe1mevPZQD/dWHFjyGL5dat DgS7N38nTwCyohnPx7sDoeRG2g0B4QM= =iM4N -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs superblock updates from Christian Brauner: "This retires sget(). CIFS plus the two ext4 KUnit tests (extents-test, mballoc-test) were the last in-tree callers, and all three convert cleanly to sget_fc(). That lets sget() and its prototype come out, taking ~60 lines that only existed to be kept in lockstep with sget_fc() on every publish-path change" * tag 'vfs-7.2-rc1.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs: retire sget() smb: client: convert cifs_smb3_do_mount() to sget_fc() ext4: convert mballoc KUnit test to sget_fc() ext4: convert extents KUnit test to sget_fc() |
||
|
Linus Torvalds
|
50b900c564 |
vfs-7.2-rc1.openat2
Please consider pulling these changes from the signed vfs-7.2-rc1.openat2 tag.
Thanks!
Christian
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc
ogT3AQCKd2J6Qz6vsVaHK8Bo9oE06Px4v2NGeu+FgCV0QQMpJQD+KTEnVl4ZepJu
JsEw202uWeQw9Aj/SoD1oyuYO0ZIrQw=
=rQxh
-----END PGP SIGNATURE-----
Merge tag 'vfs-7.2-rc1.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull openat2 updates from Christian Brauner:
"Features:
- Add O_EMPTYPATH to openat(2)/openat2(2). To get an operable file
descriptor from an O_PATH file descriptor it is possible to use
openat(fd, ".", O_DIRECTORY) for directories, but other file types
require going through open("/proc/<pid>/fd/<nr>") and thus depend
on a functioning procfs.
With O_EMPTYPATH an empty path string is accepted and LOOKUP_EMPTY
is set at path resolution time, allowing to reopen the file behind
the file descriptor directly. Selftests are included.
- Add an OPENAT2_REGULAR flag for openat2(2) which refuses to open
anything but regular files with the new EFTYPE error code.
This implements the "ability to only open regular files" feature
requested by userspace via uapi-group.org and protects services
from being redirected to fifos, device nodes, and friends.
All atomic_open implementations were audited for OPENAT2_REGULAR
handling. Explicit checks were added to ceph, gfs2, nfs (v4), and
cifs/smb - these are the filesystems whose atomic_open can
encounter an existing non-regular file and would otherwise call
finish_open() on it or return a misleading error code.
The remaining implementations (9p, fuse, vboxsf, nfs v2/v3) only
call finish_open() on freshly created files and use
finish_no_open() for lookup hits, letting the VFS catch non-regular
files via the do_open() safety net.
Cleanups:
- Migrate the openat2 selftests to the kselftest harness and move
them under selftests/filesystems/. The tests were written in the
early days of selftests' TAP support and the modern kselftest
harness is much easier to follow and maintain. The contents of the
tests are unchanged and the new emptypath tests are ported on top.
- Make the LAST_XXX last-type constants private to fs/namei.c. The
only user outside of fs/namei.c was ksmbd which only needs to know
whether the last component is a regular one, so
vfs_path_parent_lookup() now performs the LAST_NORM check
internally. The ints are replaced with a dedicated enum last_type"
* tag 'vfs-7.2-rc1.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
vfs: replace ints with enum last_type for LAST_XXX
vfs: make LAST_XXX private to fs/namei.c
selftests: openat2: port emptypath_test to kselftest harness
kselftest/openat2: test for OPENAT2_REGULAR flag
openat2: new OPENAT2_REGULAR flag support
openat2: introduce EFTYPE error code
selftest: add tests for O_EMPTYPATH
vfs: add O_EMPTYPATH to openat(2)/openat2(2)
selftests: openat2: migrate to kselftest harness
selftests: openat2: switch from custom ARRAY_LEN to ARRAY_SIZE
selftests: openat2: move helpers to header
selftests: move openat2 tests to selftests/filesystems/
|
||
|
Linus Torvalds
|
37c405aeaa |
kernel-7.2-rc1.misc
Please consider pulling these changes from the signed kernel-7.2-rc1.misc tag.
Thanks!
Christian
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc
ov8YAQC/PzS/w3jwLjZRsIzXesRtWmSVwf8W+6Df2B3sULCvkQEA8bYlzNJ8+VWx
3mC0gIKLRtLm6h2fA04z8972xOF3DgY=
=wmIj
-----END PGP SIGNATURE-----
Merge tag 'kernel-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc kernel updates from Christian Brauner:
"Fixes
- rhashtable: give each instance its own lockdep class
syzbot reported a circular locking dependency between ht->mutex and
fs_reclaim via the simple_xattrs rhashtable being torn down during
inode eviction.
The predicted deadlock cannot occur: rhashtable_free_and_destroy()
cancels the deferred worker before taking ht->mutex and
acquisitions on distinct rhashtables are on distinct mutexes.
Lockdep flags a cycle anyway because every ht->mutex in the kernel
shared the single static lockdep class from
rhashtable_init_noprof().
The lockdep key is lifted to a per-call-site static key so every
rhashtable instance gets its own class.
- selftests/clone3: fix misuse of the libcap library interface in the
cap_checkpoint_restore test and remove unused variables
- selftests/pid_namespace: compute the pid_max test limits
dynamically instead of hardcoding values below the kernel-enforced
minimum of PIDS_PER_CPU_MIN * num_possible_cpus() which made the
tests fail on machines with many possible CPUs
- selftests: fix the Makefile TARGETS entry for nsfs which wasn't
adjusted when the tests moved under filesystems/
Cleanups
- ipc/sem.c: use unsigned int for nsops to match the declaration in
syscalls.h"
* tag 'kernel-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests/clone3: remove unused variables
selftests/clone3: fix libcap interface usage
ipc/sem.c: use unsigned int for nsops
selftests: Fix Makefile target for nsfs
rhashtable: give each instance its own lockdep class
selftests/pid_namespace: compute pid_max test limits dynamically
|
||
|
Linus Torvalds
|
9c9e6bd4cc |
kernel-7.2-rc1.task_exec_state
Please consider pulling these changes from the signed kernel-7.2-rc1.task_exec_state tag.
Thanks!
Christian
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc
okqlAQDfm+CCTRDZu5EOqYod98xwbmQ/TBJo4rXv/O0E2pRRJwEAqhCNhfTd+MGY
RtkLnY+bdMEI4Ii+JGLAZdWMc3Hu9Q0=
=qF04
-----END PGP SIGNATURE-----
Merge tag 'kernel-7.2-rc1.task_exec_state' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull task_exec_state updates from Christian Brauner:
"This introduces a new per-task task_exec_state structure and relocates
the dumpable mode and the user namespace captured at execve() from
mm_struct onto it. It stays attached to the task for its full
lifetime.
__ptrace_may_access() and several /proc owner and visibility checks
need to consult two pieces of state for any observable task, including
zombies that have already gone through exit_mm(): the dumpable mode
and the user namespace captured at execve(). Both live on mm_struct
today, which exit_mm() clears from the task long before the task is
reaped. A reader that races with do_exit() observes task->mm == NULL
and either fails the check or falls back to init_user_ns - which
denies legitimate access to non-dumpable zombies that were running in
a nested user namespace.
mm_struct loses ->user_ns and the dumpability bits in ->flags.
MMF_DUMPABLE_BITS is reserved so the MMF_DUMP_FILTER_* layout exposed
via /proc/<pid>/coredump_filter stays stable. task->user_dumpable and
its exit_mm() snapshot are removed.
task_exec_state is the privilege domain established by an execve().
Within a thread group it is shared via refcount; across thread groups
each task has its own:
- CLONE_VM siblings (thread-group members, io_uring workers)
refcount-share the parent's exec_state.
- Non-CLONE_VM clones (fork(), vfork() without CLONE_VM) allocate a
fresh exec_state inheriting the parent's dumpable mode and user_ns.
- execve() in the child allocates a fresh instance and installs it
under task_lock + exec_update_lock via task_exec_state_replace().
- Credential changes (setresuid, capset, ...) and
prctl(PR_SET_DUMPABLE) update dumpability on the current task's
exec_state, i.e., on the thread group's shared instance.
On top of this exec_mmap() no longer tears down the old mm while
holding exec_update_lock for writing and cred_guard_mutex. Neither
lock is needed for that: exec_update_lock only exists to make the mm
swap atomic with the later commit_creds() and all its readers operate
on the new mm; none looks at the detached old mm.
The cost was real: __mmput() runs exit_mmap() over the entire old
address space and can block in exit_aio() waiting for in-flight AIO,
so execve() of a large process blocked ptrace_attach() and every
exec_update_lock reader for the duration of the teardown.
The old mm is now stashed in bprm->old_mm and released from
setup_new_exec() after both locks are dropped, with a backstop in
free_bprm() for the error paths"
* tag 'kernel-7.2-rc1.task_exec_state' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
exec: free the old mm outside the exec locks
exec_state: relocate dumpable information
ptrace: add ptracer_access_allowed()
exec: introduce struct task_exec_state
sched/coredump: introduce enum task_dumpable
|
||
|
Linus Torvalds
|
5d15ab717d |
vfs-7.2-rc1.casefold
Please consider pulling these changes from the signed vfs-7.2-rc1.casefold tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKgAKCRCRxhvAZXjc omRSAP4valdmpvuSFbc84F6nn0LjDhTR+zg3uX2iGF6sWaQLjAEAyAhuDH23SQyz SSj2KCh/G2c/IXCVM5j0zn7fZxeKBA4= =GA7C -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs casefolding updates from Christian Brauner: "This exposes the case folding behavior of local filesystems so that file servers - nfsd, ksmbd, and user space file servers - can report the actual behavior to clients instead of guessing. Filesystems report case-insensitive and case-nonpreserving behavior via new file_kattr flags in their fileattr_get implementations. fat, exfat, ntfs3, hfs, hfsplus, xfs, cifs, nfs, vboxsf, and isofs are wired up. Local filesystems that are not explicitly handled default to the usual POSIX behavior of case-sensitive and case-preserving. nfsd uses this to report case folding via NFSv3 PATHCONF and to implement the NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING attributes - both have been part of the NFS protocols for decades to support clients on non-POSIX systems - and ksmbd reports it via FS_ATTRIBUTE_INFORMATION. Exposing the information through the fileattr uapi covers user space file servers. The immediate motivation is interoperability: Windows NFS clients hard-require servers to report case-insensitivity for Win32 applications to work correctly, and a client that knows the server is case-insensitive can avoid issuing multiple LOOKUP/READDIR requests searching for case variants. The Linux NFS client already grew support for case-insensitive shares years ago in support of the Hammerspace NFS server - negative dentry caching must be disabled (a lookup for "FILE.TXT" failing must not cache a negative entry when "file.txt" exists) and directory change invalidation must drop cached case-folded name variants. Such servers often operate in multi-protocol environments where a single file service instance caters to both NFS and SMB clients, and nfsd needs to report case folding properly to participate as a first-class citizen there. A follow-up series brings fixes for the initial work: the nfsd case-info probe now uses kernel credentials, maps -ESTALE to NFS3ERR_STALE, and has its cost capped across READDIR entries; the nfs client avoids transiently zeroed case capability bits during the probe and skips the pathconf probe when neither field is consumed; the FS_CASEFOLD_FL semantics are clarified in the UAPI header; and the tools UAPI headers are synced" * tag 'vfs-7.2-rc1.casefold' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (22 commits) nfsd: Cap case-folding probe cost across READDIR entries nfsd: Map -ESTALE from case probe to NFS3ERR_STALE nfsd: Use kernel credentials for case-info probe fs: Clarify FS_CASEFOLD_FL semantics in UAPI header nfs: Skip pathconf probe when neither field is consumed nfs: Avoid transient zeroed case capability bits during probe tools headers UAPI: Sync case-sensitivity flags from linux/fs.h ksmbd: Report filesystem case sensitivity via FS_ATTRIBUTE_INFORMATION nfsd: Implement NFSv4 FATTR4_CASE_INSENSITIVE and FATTR4_CASE_PRESERVING nfsd: Report export case-folding via NFSv3 PATHCONF isofs: Implement fileattr_get for case sensitivity vboxsf: Implement fileattr_get for case sensitivity nfs: Implement fileattr_get for case sensitivity cifs: Implement fileattr_get for case sensitivity xfs: Report case sensitivity in fileattr_get hfsplus: Report case sensitivity in fileattr_get hfs: Implement fileattr_get for case sensitivity ntfs3: Implement fileattr_get for case sensitivity exfat: Implement fileattr_get for case sensitivity fat: Implement fileattr_get for case sensitivity ... |
||
|
Linus Torvalds
|
6b5b72ac2c |
vfs-7.2-rc1.directory.delegations
Please consider pulling these changes from the signed vfs-7.2-rc1.directory.delegations tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKQAKCRCRxhvAZXjc opMRAQD9zbiUu66CHNd49yD3sFtuG8uM7I2VuIoczgW+qKka5QEA8HBVqMtdurZf eEcj415FqHQNX1W3jytjU1jYjiwmtgY= =Ahl/ -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs directory delegations from Christian Brauner: "This contains the VFS prerequisites for supporting directory delegations in nfsd via CB_NOTIFY callbacks. The filelock core gains support for ignoring delegation breaks for directory change events together with an inode_lease_ignore_mask() helper, and fsnotify gains fsnotify_modify_mark_mask() and a FSNOTIFY_EVENT_RENAME data type. With this in place nfsd can request delegations on directories and set up inotify watches to trigger sending CB_NOTIFY events to clients instead of having every directory change break the delegation. New tracepoints are added to fsnotify() and to the start of break_lease(), and trace_break_lease_block() is passed the currently blocking lease instead of the new one. A follow-up fix moves the LEASE_BREAK_* flags out of #ifdef CONFIG_FILE_LOCKING to fix the build for CONFIG_FILE_LOCKING=n configurations" * tag 'vfs-7.2-rc1.directory.delegations' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: filelock: move LEASE_BREAK_* flags out of #ifdef CONFIG_FILE_LOCKING fsnotify: add FSNOTIFY_EVENT_RENAME data type fsnotify: add fsnotify_modify_mark_mask() fsnotify: new tracepoint in fsnotify() filelock: add an inode_lease_ignore_mask helper filelock: add a tracepoint to start of break_lease() filelock: add support for ignoring deleg breaks for dir change events filelock: pass current blocking lease to trace_break_lease_block() rather than "new_fl" |
||
|
Linus Torvalds
|
fac863c887 |
vfs-7.2-rc1.inode
Please consider pulling these changes from the signed vfs-7.2-rc1.inode tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKQAKCRCRxhvAZXjc oprJAQDhPF8SZCgbPQ6TYVjOZtP2jWZEOrh0UVd0YjisDHqpkAD/ZVlRzvn9jKBT uuFnsOsOhJYfsQym5uXJhFWgR1kHsQs= =CTxV -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs inode updates from Christian Brauner: "This extends the lockless ->i_count handling. iput() could already decrement any value greater than one locklessly but acquiring a reference always required taking inode->i_lock. Now acquiring a reference is lockless as long as the count was already at least 1, i.e., only the 0->1 and 1->0 transitions take the lock. This avoids the lock for the common cases of nfs calling into the inode hash and btrfs using igrab(). Cleanup-wise icount_read_once() is added to line up with inode_state_read_once() and the open-coded ->i_count loads across the tree are converted, and ihold() is relocated and tidied up. On top of that some stale lock ordering annotations are retired from the inode hash code: iunique() no longer takes the hash lock since the inode hash became RCU-searchable and s_inode_list_lock is no longer taken under the hash lock either" * tag 'vfs-7.2-rc1.inode' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs: retire stale lock ordering annotations from inode hash fs: allow lockless ->i_count bumps as long as it does not transition 0->1 fs: relocate and tidy up ihold() fs: add icount_read_once() and stop open-coding ->i_count loads |
||
|
Linus Torvalds
|
4d23bdc498 |
vfs-7.2-rc1.exportfs
Please consider pulling these changes from the signed vfs-7.2-rc1.exportfs tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKQAKCRCRxhvAZXjc osTEAP9jxy3fjL4GlydiPPkfKPPEQAwgVQ7kAi6UeEwOp+21RQEAy2FfDSHCs/Xo vDD36+PWi5msceD5KGUL4vGSMSJX4gs= =T+h6 -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.exportfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull exportfs updates from Christian Brauner: "This cleans up the exportfs support for block-style layouts that provide direct block device access: the operations for layout-based block device access are split out of struct export_operations into a separate header, ->commit_blocks() no longer takes a struct iattr argument, and the way support for layout-based block device access is detected is reworked. nfsd's blocklayout code also stops honoring loca_time_modify. This is preparation for supporting export of more than a single device per file system" * tag 'vfs-7.2-rc1.exportfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: exportfs,nfsd: rework checking for layout-based block device access support exportfs: don't pass struct iattr to ->commit_blocks exportfs: split out the ops for layout-based block device access nfsd/blocklayout: always ignore loca_time_modify |
||
|
Linus Torvalds
|
d2cb5e633c |
vfs-7.2-rc1.kfunc
Please consider pulling these changes from the signed vfs-7.2-rc1.kfunc tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaiwLKQAKCRCRxhvAZXjc omvOAP4qC9EOcysoY0JGOEa4d915tpxYW6mxgv/My1MAMEybsQD+KHMNTiWke4Aj CSFyVhZ43R2I+VYO2HTPbzEGOTqs2Qs= =WfNh -----END PGP SIGNATURE----- Merge tag 'vfs-7.2-rc1.kfunc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull bpf filesystem kfunc fix from Christian Brauner: "The bpf_set_dentry_xattr() and bpf_remove_dentry_xattr() kfuncs locked the inode of the supplied dentry without checking whether the dentry is negative. Passing a negative dentry (e.g., from security_inode_create) caused a NULL pointer dereference. Negative dentries now fail with EINVAL. The WARN_ON(!inode) in the bpf xattr permission helpers is dropped as well since it could be triggered the same way, amounting to a denial of service on systems with panic_on_warn enabled" * tag 'vfs-7.2-rc1.kfunc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: bpf: fix crash in bpf_[set|remove]_dentry_xattr for negative dentries |
||
|
Linus Torvalds
|
8cd9520d35 | Linux 7.1 | ||
|
Linus Torvalds
|
4242809533 |
ARM fixes for 7.1
Three fixes: - Avoid KASAN instrumentation of half-word IO - Use a byte load for KASAN shadow stack - Fix kexec and hibernation with PAN -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAmousPYACgkQ9OeQG+St rGREqQ/+OdeNlX8q7h7Hv5kOXsrjsD/UMjsunzP/RKeZUYskF0zxJyK+qc6BjW1g +5zxSikZ+cZZT0rrGma5gOBpNG0FtJSF02CyCSjlKyb6nu09wc1aMZ/DiAMQkZ/u wunswFeR3pO97YT6QxJMcv2MVabH4FvWg7aym5KmJycWwRYzDwd1id0b/aEDyP6n bEnspk1RnAgp12mC4IjK+dKlsd9wgbrCNBXCyGw35cqEuqaVG021Jkprwxk3jdK/ sunFPQVZebewiQFQOTQP6jNudYOfV6Uf+7wu67C7inLdffe7r+OW+Z2aFuHXJmXo lbpQvmgzHMzpFq5nNQaMFO3cwe6HwPwwDJbXf6eDWvbKPaaU6AQf+Ywcbj/P6Aj6 7+ellXuSkErTKZSVrJ/wdLB2I1CGHkWbMX6VSXizuZJ5H07E40urkEqIALyw3Q4z +8RxnOrfsrlVeE1m+rm5FpOSxokD8kbSn66fP2EwIG1lRbbmFw402nj51a7Vuc8e RcSqPt3Y8L9vHCh9c2hxc/IzYTyE21wKeWWP9qPsvR79xyJLLgPbAwvk6sxGLDEY Fcourk96GROJ1RQxNXLzjgexrVCVBgZgW+qeOwVcxzejWZbkx7i/9UFCokTHO0bg 4UrMJ6+XWH49PwDTlxjHBn+HFgAwLlZyFNIbee6fQNqxvYgxo68= =aiHy -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux Pull ARM fixes from Russell King: - Avoid KASAN instrumentation of half-word IO - Use a byte load for KASAN shadow stack - Fix kexec and hibernation with PAN * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9476/1: mm: fix kexec and hibernation with CONFIG_CPU_TTBR0_PAN ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow ARM: 9474/1: io: avoid KASAN instrumentation of raw halfword I/O |
||
|
Linus Torvalds
|
e21ee273e6 |
Fixes for the Qualcomm and Google GS101 clk drivers:
- Skip parking clks on some Qualcomm platforms so that the
recovery console keeps working
- Fix Google GS101 resume by using the correct div register
-----BEGIN PGP SIGNATURE-----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=UYw5
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Fixes for the Qualcomm and Google GS101 clk drivers:
- Skip parking clks on some Qualcomm platforms so that the recovery
console keeps working
- Fix Google GS101 resume by using the correct div register"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: dispcc-sc8280xp: Don't park mdp_clk_src at registration time
clk: samsung: gs101: Fix missing USI7_USI DIV clock in peric0_clk_regs
clk: qcom: x1e80100-dispcc: Stop disp_cc_mdss_mdp_clk_src from getting parked
|
||
|
Linus Torvalds
|
2b07ea76fd |
- Fix potential debugobjects deadlock on PREEMPT_RT kernels
(Waiman Long) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmotM34RHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1iY7BAAmlH54KzSFAtKfeIYb7Vc0Yc8JSHicJ0I VExAapEODhFyQkOyZCz60a0lqCL0ZaieQ2zIMSr0GtomYBIRoESzxfuN51KBEQ77 FM8MslGzpOk+u35AY/9WqcKPdu6QQt5cn/uOOaNNXnDtJbkMorcz1hTrZrYVl6XB 4EnWR2U1f3aN4zz+IM/HpH4/HUOREJi3AXjNvh9aUCWn/yRN4TK1FfKQbMTrCGuq wq000+tN16LusLw3QwpFvO9rcuYgqnhHvUOpxrANRYQFUwoaVQsoQ9prvlwNzH8I V4ygYVFAQjlteeLWx0O1sk0KSztg9+AIPGC6iiBKu45QjDLDLCIJA764D7gZrw9s wUBxlJyyiIzEa2WJ28KPEiJ22wOfhhc2YS80sK2oIP2rjdbYlvcFyvaLATDu5OxG M9BZyx5144pVkXkIqqyZOrtGxebJEqsPOb/eKFFvW3G9IUElhcjRh2c/NmGDquNH zZz1Oulhc7z8hMtUTNdllXdc0hoYLTO+8xN/WKsMCvpgXnwH9tjo7CySwuWhG2G9 iYaO7EMBGPGRA+uhj8b/HoOHMF8fq2FtpFg2na3ftVCyfMwmcuUcfpcpMvbuOWql 9MnCUVEoFXeSr1/zP+II6kC/aQzKN1oddQEX0PcE1lakEpN2f67U5osESkzSuXxl WwngN0Rgslc= =4bdE -----END PGP SIGNATURE----- Merge tag 'core-urgent-2026-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull debugobjects fix from Ingo Molnar: - Fix potential debugobjects deadlock on PREEMPT_RT kernels (Waiman Long) * tag 'core-urgent-2026-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: debugobjects: Don't call fill_pool() in early boot hardirq context |
||
|
Linus Torvalds
|
a5e98d1679 |
i2c-for-7.1-rc8
- rust: fix I2cAdapter refcount double increment
- MAINTAINERS: minor updates
- imx: keep clock and pinctrl states consistent in runtime PM
- imx-lpi2c: fix DMA resource leaks on PIO fallback
- qcom-cci: fix NULL pointer dereference on remove
- riic: fix reset refcount leak on resume_noirq error path
- stm32f7: account for analog filter in timing computation
- tegra: fix suspend/resume handling in NOIRQ phase
- tegra: update Tegra410 I2C timings to match hardware specs
- MAINTAINERS: hand over I2C maintainership to Andi
-----BEGIN PGP SIGNATURE-----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=K2oD
-----END PGP SIGNATURE-----
Merge tag 'i2c-for-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"The biggest news here is that this is my last pull request as I2C
maintainer after 13.5 years. Starting with the 7.2 cycle, Andi Shyti
is taking over who helped me greatly maintaining the host drivers for
a while now. Thank you, Andi, and good luck with the subsystem. I'll
be around for help, of course.
Technically, there are two patches which might be a tad large for this
late cycle, but most of them is explaining comments, so I think they
are suitable.
- MAINTAINERS:
- hand over I2C maintainership to Andi
- minor updates
- rust: fix I2cAdapter refcount double increment
- imx: keep clock and pinctrl states consistent in runtime PM
- imx-lpi2c: fix DMA resource leaks on PIO fallback
- qcom-cci: fix NULL pointer dereference on remove
- riic: fix reset refcount leak on resume_noirq error path
- stm32f7: account for analog filter in timing computation
- tegra:
- fix suspend/resume handling in NOIRQ phase
- update Tegra410 I2C timings to match hardware specs"
* tag 'i2c-for-7.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
dt-bindings: i2c: mux-gpio: name correct maintainer
MAINTAINERS: hand over I2C to Andi Shyti
i2c: imx-lpi2c: fix resource leaks switching to devm_dma_request_chan()
MAINTAINERS: i2c: designware: Remove inactive reviewer
i2c: tegra: Fix NOIRQ suspend/resume
i2c: tegra: Update Tegra410 I2C timing parameters
i2c: qcom-cci: Fix NULL pointer dereference in cci_remove()
i2c: stm32f7: fix timing computation ignoring i2c-analog-filter
i2c: imx: fix clock and pinctrl state inconsistency in runtime PM
i2c: riic: fix refcount leak in riic_i2c_resume_noirq()
rust: i2c: fix I2cAdapter refcounts double increment
|
||
|
Thomas Gleixner
|
c66494c79e |
- Remove the sifive,fine-ctr-bits property bindings because it is a
redundant information (Nick Hu)
- Remove the TCIU8 interrupt bindings on Renesas because it should not
be described as the documentation marked reserved and fix the
conditional reset line for the RZ/{T2H,N2H} (Cosmin Tanislav)
- Add the StarFive JHB100 clint DT bindings compatible string (Ley
Foon Tan)
- Extend schema condition for interrupts to cover D1 compatible
variant an add the D1 hstimer support (Michal Piekos)
- Update the ARM architected timer support to handle the ACPI GTDT v3
format and the EL2 virtual timer, enabling Linux to use the most
appropriate timer when running with VHE, while also fixing several
Device Trees to accurately reflect the underlying hardware (Marc
Zyngier)
- Cleanup and add the clocksource and the clockevent in the TI DM
timer (Markus Schneider-Pargmann)
- Add the multiple watchdogs support in the tegra186 and
tegra234. Dedicate one as a kernel watchdog (Kartik Rajput)
- Add the NXP clocksource selection for the scheduler in the Kconfig
(Enric Balletbo i Serra)
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEGn3N4YVz0WNVyHskqDIjiipP6E8FAmoq0wgACgkQqDIjiipP
6E8Ungf/SNh8g6NbP6Gqg5Vs0WxlM75EGeJsryLFXooXjLa2TJVh5/i3fm0kh8uG
xi/cs2NLWsAMezLwLQhmB+mMGzsZh4WswgTu7EqCkXgd+TMqV9Wi57vU18nOX8gs
XKGxCUqg+kOGAoj5FsZLyq6Sy/NfMHxxY2kSq4oUG2o/xWaLYwDvRcW8iXXAjj/U
321YrB77lJ+FefUiZveiykf+QjzOXkiPlJTGroOcEL8F/Hm5YMBDfAtW6zslfiFw
KmOjraY9wkRqQVT9xFeJrssCpn8iCzb9DXpKQUkTAahYgVc0Im7g3p/GOkUHmQFE
KfvgBNO/tt3+m/Q8FO3la8gPF6LuaA==
=upV/
-----END PGP SIGNATURE-----
Merge tag 'timers-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource
Pull clocksource/driver updates from Daniel Lezcano:
- Remove the sifive,fine-ctr-bits property bindings because it is a
redundant information (Nick Hu)
- Remove the TCIU8 interrupt bindings on Renesas because it should not
be described as the documentation marked reserved and fix the
conditional reset line for the RZ/{T2H,N2H} (Cosmin Tanislav)
- Add the StarFive JHB100 clint DT bindings compatible string (Ley
Foon Tan)
- Extend schema condition for interrupts to cover D1 compatible
variant an add the D1 hstimer support (Michal Piekos)
- Update the ARM architected timer support to handle the ACPI GTDT v3
format and the EL2 virtual timer, enabling Linux to use the most
appropriate timer when running with VHE, while also fixing several
Device Trees to accurately reflect the underlying hardware (Marc
Zyngier)
- Cleanup and add the clocksource and the clockevent in the TI DM
timer (Markus Schneider-Pargmann)
- Add the multiple watchdogs support in the tegra186 and
tegra234. Dedicate one as a kernel watchdog (Kartik Rajput)
- Add the NXP clocksource selection for the scheduler in the Kconfig
(Enric Balletbo i Serra)
Link: https://lore.kernel.org/all/1e55e8d6-8024-4f17-8620-ab3385465d76@oss.qualcomm.com
|
||
|
WenTao Liang
|
87bd2ad568 |
posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path
In do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference
via get_pid() and stores it in timer.it.cpu.pid. If the subsequent
posix_cpu_timer_set() call fails, the function returns immediately
without calling posix_cpu_timer_del() to release the pid reference,
causing a leak.
Fix it by calling posix_cpu_timer_del() before the unlock-and-return
on the error path, consistent with the other exit paths in the same
function.
Fixes:
|
||
|
Thomas Gleixner
|
8f72761513 |
x86/irq: Add missing 's' back to thermal event printout
The /proc/interrupt handling rework dropped a 's' in the thermal event
printout, which breaks the thermal test in the Intel LKVS suite.
Bring the important letter back.
Fixes:
|