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23eb790181
1466490 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
23eb790181 |
Fix frame pointer unwinder when it encounters FRED stack frames
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||
|
Linus Torvalds
|
104a813376 |
VDSO updates:
- Consolidate the VDSO datastore further and provide support for
mlock_all() and prefaulting.
- Provide 32-bit legacy time related functionality only if
CONFIG_COMPAT_32BIT_TIME is enabled. The config switch exists, but
architecture code still exposes the legacy functionality even disabled.
Clean this up by adding the missing guards and validating at build time
that the VDSO is legacy free if disabled.
- Consolidate the VDSO related config options in core and drivers, which
removes some non-sensical dependencies and quite an amount of #ifdeffery.
- Clean up the PAGE_SIZE definition maze
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Merge tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO updates from Thomas Gleixner:
- Consolidate the VDSO datastore further and provide support for
mlock_all() and prefaulting.
- Provide 32-bit legacy time related functionality only if
CONFIG_COMPAT_32BIT_TIME is enabled. The config switch exists,
but architecture code still exposes the legacy functionality even
disabled.
Clean this up by adding the missing guards and validating at build
time that the VDSO is legacy free if disabled.
- Consolidate the VDSO related config options in core and drivers,
which removes some non-sensical dependencies and quite an amount of
#ifdeffery.
- Clean up the PAGE_SIZE definition maze
* tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
random: vDSO: Drop custom PAGE_SIZE definitions
LoongArch: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
clocksource/drivers/timer-riscv: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
clocksource/drivers/arm_arch_timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
clocksource/drivers/mips-gic-timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
MIPS: csrc-r4k: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
vDSO: Make clockmode constants available without CONFIG_GENERIC_GETTIMEOFDAY
kbuild: Support generated asm-headers in subdirectories
vdso: Rename HAVE_GENERIC_VDSO to VDSO_DATASTORE
vdso: Drop HAVE_GENERIC_VDSO from architecture kconfig files
vdso: Automatically select HAVE_GENERIC_VDSO if necessary
MIPS: vdso: Stop using CONFIG_HAVE_GENERIC_VDSO
vdso: Remove the dependency on HAVE_GENERIC_VDSO from ARCH_HAS_VDSO_ARCH_DATA
futex: Remove dependency on HAVE_GENERIC_VDSO from FUTEX_ROBUST_UNLOCK
vdso/gettimeofday: Verify COMPAT_32BIT_TIME interactions
sparc: vdso: Respect COMPAT_32BIT_TIME
MIPS: VDSO: Respect COMPAT_32BIT_TIME
powerpc/vdso: Respect COMPAT_32BIT_TIME
ARM: VDSO: Respect COMPAT_32BIT_TIME
arm64: vdso32: Respect COMPAT_32BIT_TIME
...
|
||
|
Linus Torvalds
|
3b4128b9f3 |
Timers and timekeeping core updates:
- Fix a subtly inconsistency in the timekeeping code, which fails to
account for the monotonicity adjustment in ntp_error. For small changes
of the clocksource multiplicator (+/-1) which are typically used by the
NTP PLL this is hardly to observe. But for larger adjustments,
e.g. caused by a direct frequency setting through adjtimex() the
one-time uncompensated offset is significant.
Cure this by adjusting ntp_error with the resulting offset so that the
discrepancy is smoothed away over time
- Make tick length calculations correct in NTP. The timekeeping core
takes the quantisation of the clocksource into account when calculating
the tick length to compensate for the deviation of the nominal
NTP_INTERVAL_LENGTH. While timekeeping gets this right, NTP is not
aware of that, which means it operates on the nominal value and not on
the actual value which is determined by the clock source frequency. The
rounding of a coarse clocksource like the ACPI PM timer results in a
+127 PPM deviation.
Cure this by exposing the deviation to the NTP code so that it can
operate on the same data as the timekeeping core. This is purely kernel
internal. User space still sees the nominal tick lenght via adjtimex().
- The accuracy of the NTP adjustments is fairly approximate as the code
assumes that the invocations are precisely in NTP interval frequency
ticks and the final adjustment can over and under-run.
Cure this by adjusting ntp_error by the intended skew on each tick to
achieve the desired rate.
- Handle the two competing skews of time offset and time adjustment
correctly by calculating the conflict portion between the skews and
adjusting both accordingly.
- A set of updates and improvements for the selftests
- The usual small fixes and improvements all over the place
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Merge tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer and timekeeping core updates from Thomas Gleixner:
- Fix a subtly inconsistency in the timekeeping code, which fails to
account for the monotonicity adjustment in ntp_error.
For small changes of the clocksource multiplicator (+/-1) which are
typically used by the NTP PLL this is hard to observe. But for larger
adjustments, e.g. caused by a direct frequency setting through
adjtimex() the one-time uncompensated offset is significant.
Cure this by adjusting ntp_error with the resulting offset so that
the discrepancy is smoothed away over time
- Make tick length calculations correct in NTP.
The timekeeping core takes the quantisation of the clocksource into
account when calculating the tick length to compensate for the
deviation of the nominal NTP_INTERVAL_LENGTH.
While timekeeping gets this right, NTP is not aware of that, which
means it operates on the nominal value and not on the actual value
which is determined by the clock source frequency. The rounding of a
coarse clocksource like the ACPI PM timer results in a +127 PPM
deviation.
Cure this by exposing the deviation to the NTP code so that it can
operate on the same data as the timekeeping core. This is purely
kernel internal. User space still sees the nominal tick lenght via
adjtimex().
- The accuracy of the NTP adjustments is fairly approximate as the code
assumes that the invocations are precisely in NTP interval frequency
ticks and the final adjustment can over and under-run.
Cure this by adjusting ntp_error by the intended skew on each tick to
achieve the desired rate.
- Handle the two competing skews of time offset and time adjustment
correctly by calculating the conflict portion between the skews and
adjusting both accordingly.
- A set of updates and improvements for the selftests
- The usual small fixes and improvements all over the place
* tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
selftests: timers: nsleep-lat: Check all calls to clock_nanosleep() and clock_gettime()
selftests: timers: nsleep-lat: Reuse kselftest error numbers
selftests: timers: nsleep-lat: Explicitly list the tested clocks
selftests: timers: nsleep-lat: Use NSEC_PER_MSEC define for unreasonable latency
selftests: timers: nanosleep: Report each test separately
selftests: timers: nanosleep: Explicitly handle timer_delete() failure
selftests: timers: nanosleep: Move all single clock tests out of the loop in main()
selftests: timers: nanosleep: Reuse kselftest error numbers
selftests: timers: nanosleep: Explicitly list the tested clocks
selftests: timers: nanosleep: Drop output alignment
selftests: timers: Use clock_name() and constants from clock-helpers.h
selftests: Add clock-helpers.h
timer_list: Use ktime_t over nanoseconds
timer_list: Use standard 'long long' format placeholders
hrtimer: Add a lockdep assertion to hrtimer_update_base()
timekeeping: Use u32 for clock_was_set_seq
timekeeping: Rename clockid_aux_valid() to clockid_is_aux_clock()
hrtimer: Account nr_retries on recovered interrupt retries
timers/itimer: Zero-init old itimerval before copy to userspace
nohz: Replace dead select with choice default
...
|
||
|
Linus Torvalds
|
b0239dd672 |
Clocksource/event driver updates:
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers.
- Handle SWAP_IO_SPACE correctly in the rtl-otto driver
- Make the Samsumg PWM timer driver PREEMPT_RT compatible
- Ensure that the SUN4I timer is programmed with a delta larger than zero
as a zero delta causes the the timer to be disabled.
- The usual fixes and improvements all over the place
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Merge tag 'timers-clocksource-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull clocksource/event driver updates from Thomas Gleixner:
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers
- Handle SWAP_IO_SPACE correctly in the rtl-otto driver
- Make the Samsumg PWM timer driver PREEMPT_RT compatible
- Ensure that the SUN4I timer is programmed with a delta larger than
zero as a zero delta causes the the timer to be disabled
- The usual fixes and improvements all over the place
* tag 'timers-clocksource-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/armada: Unwind timer clock on init failure
clocksource/drivers/rtl-otto: Change driver to use __raw reads and writes
clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type
clocksource/drivers/clps711x: Do not unmap clocksource MMIO
clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhp_setup_state error path
clocksource/drivers/timer-sun4i: Advertise a real minimum delta
clocksource: Remove redundant dev_err()/dev_err_probe()
clocksource/drivers/sh_cmt: Use named initializers for platform_device_id arrays
clocksource/drivers/sh_mtu2: Drop unused assignment of platform_device_id
|
||
|
Linus Torvalds
|
030c9f813b |
Treewide timer related cleanups:
- Remove the leftover CLOCK_TICK_RATE which has been scheduled for
removal more than a decade ago along with some now empty asm/timex.h
files.
- Consolidate delay timer calibration
The construct of having a define in a header requires that
architectures provided asm/timex.h for no reason. Also the function
name for reading the delay timer is confusing at best.
Use a config switch to enable that functionality and rename the
function to delay_read_timer() to make the purpose clear.
This removes some more now empty asm/timex.h files as well.
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Merge tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull treewide timer related cleanups from Thomas Gleixner:
- Remove the leftover CLOCK_TICK_RATE which has been scheduled for
removal more than a decade ago along with some now empty asm/timex.h
files.
- Consolidate delay timer calibration
The construct of having a define in a header requires that
architectures provided asm/timex.h for no reason. Also the function
name for reading the delay timer is confusing at best.
Use a config switch to enable that functionality and rename the
function to delay_read_timer() to make the purpose clear.
This removes some more now empty asm/timex.h files as well.
* tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
calibrate: Rework delay timer calibration
treewide: Remove CLOCK_TICK_RATE
x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE
|
||
|
Linus Torvalds
|
0dd1a54f44 |
SMP core updates:
- Reduce the preemption disabled sections in smp_call_function*().
The various smp call functions keep preemption disabled accross the
full operation which includes the wait for completion. Especially the
latter can take some time when one of the target CPUs is not
immediately responding to the IPI, which can result in large latency
spikes.
To improve this provide a per task CPU mask to track the CPUs to wait
for. That makes the information required for the wait task local and
therefore allows to reenable preemption before the wait. While this
comes with moderate extra memory cost this reduces SMP function call
induced latency measured in a fleet for high priority tasks from ~17ms
to ~1.5ms (~90%).
- Reduce the overhead of the CSD debug code by replacing the heavy memory
barriers with smp_store_release()/acquire().
- Remove obsolute unused hotplug states
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Merge tag 'smp-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP core updates from Thomas Gleixner:
- Reduce the preemption disabled sections in smp_call_function*().
The various smp call functions keep preemption disabled accross the
full operation which includes the wait for completion. Especially the
latter can take some time when one of the target CPUs is not
immediately responding to the IPI, which can result in large latency
spikes.
To improve this provide a per task CPU mask to track the CPUs to wait
for. That makes the information required for the wait task local and
therefore allows to reenable preemption before the wait.
While this comes with moderate extra memory cost this reduces SMP
function call induced latency measured in a fleet for high priority
tasks from ~17ms to ~1.5ms (~90%).
- Reduce the overhead of the CSD debug code by replacing the heavy
memory barriers with smp_store_release()/acquire()
- Remove obsolute unused hotplug states
* tag 'smp-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
scftorture: Remove preempt_disable() in scftorture_invoke_one()
smp: Remove preempt_disable() from on_each_cpu_cond_mask()
smp: Remove preempt_disable() from smp_call_function()
smp: Enable preemption early in smp_call_function_many_cond()
smp: Alloc percpu csd data in smpcfd_prepare_cpu() only once
smp: Use task-local IPI cpumask in smp_call_function_many_cond()
smp: Refactor remote CPU selection in smp_call_function_any()
smp: Enable preemption early in smp_call_function_single()
smp: Disable preemption explicitly in __csd_lock_wait()
cpu/hotplug: Remove CPUHP_AP_ARM_CORESIGHT_CTI_STARTING
smp: Use release stores for csd_lock_record() state
|
||
|
Linus Torvalds
|
b844715e8a |
Futex updates:
- A set of improvements to various futex self tests
- Conversion to the selftest harness
- Provide and use thread creation and synchronization helpers to reduce
the dependency on delays, which tend to fail on loaded test systems
- New tests for validating owner exit scenarios for robust and PI futexes
- Runtime detect supported features and skip the tests if the kernel
has no support
- A few minor fixes
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Merge tag 'locking-futex-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex updates from Thomas Gleixner:
- Improvements to various futex self tests:
- Conversion to the selftest harness
- Provide and use thread creation and synchronization helpers to
reduce the dependency on delays, which tend to fail on loaded test
systems
- New tests for validating owner exit scenarios for robust and PI
futexes
- Runtime detect supported features and skip the tests if the kernel
has no support
- A few minor fixes
* tag 'locking-futex-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/futex: Give circular-list nodes static storage
selftests/futex: Use thread synchronization helpers instead of usleep()
selftests/futex: Provide thread creation and synchronization helpers
selftests/futex: Dynamically skip unsupported tests
selftests/futex: Add FUTEX_LOCK_PI owner-exiting coverage
selftests/futex: Migrate robust_list to harness
selftests/futex: Migrate futex_priv_hash to harness
selftests/futex: Migrate futex_numa_mpol to harness
selftests/futex: Migrate futex_requeue_pi_signal_restart to harness
selftests/futex: Migrate futex_requeue_pi_mismatched_ops to harness
selftests/futex: Migrate futex_requeue_pi to harness
selftests/futex: Migrate futex_requeue to harness
selftests/futex: Migrate futex_wait_uninitialized_heap to harness
selftests/futex: Migrate futex_wait_private_mapped_file to harness
selftests/futex: Migrate futex_wait to harness
selftests/futex: Correct validation logic in waitv
selftests/futex: Migrate functional tests to harness
selftests/futex: Remove static keyword from 'head'
futex: Remove unnecessary NULL check before kvfree()
selftests/rseq: Replace glibc-specific __GNUC_PREREQ with portable check
|
||
|
Linus Torvalds
|
8b5d31123f |
Interrupt chip driver updates:
- Update the realtek-rtl driver to support multiple interrupt domains and
remove hardcoded assumptions about the underlying demultiplex interrupt
- Remove the unused IMGPDC driver, which got orphaned when the metag
architecture was removed long ago.
- Update the Qualcom PDC interrupt chip driver to support differnent
versions of the IP block, to properly differentiable between direct and
GPIO based interrupts and to utilize pass through mode to the
underlying GIC interrupt.
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers as that error logging has been moved to devm_request_*_irq().
- Support dynamic MSI-X allocations in the GIC-V3-ITS MSI parent domain
driver. That's important for VFIO pass through devices to avoid
reinitialization of the MSI-X space when extending the vector
range. Such a reinitialization can result is lost interrupts and stale
devices.
- Fix a bunch of resource leaks in various driver error paths/
- The usual small improvements all over the place
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Merge tag 'irq-drivers-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull interrupt chip driver updates from Thomas Gleixner:
- Update the realtek-rtl driver to support multiple interrupt domains
and remove hardcoded assumptions about the underlying demultiplex
interrupt
- Remove the unused IMGPDC driver, which got orphaned when the metag
architecture was removed long ago.
- Update the Qualcom PDC interrupt chip driver to support differnent
versions of the IP block, to properly differentiable between direct
and GPIO based interrupts and to utilize pass through mode to the
underlying GIC interrupt.
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers as that error logging has been moved to devm_request_*_irq().
- Support dynamic MSI-X allocations in the GIC-V3-ITS MSI parent domain
driver. That's important for VFIO pass through devices to avoid
reinitialization of the MSI-X space when extending the vector range.
Such a reinitialization can result is lost interrupts and stale
devices.
- Fix a bunch of resource leaks in various driver error paths
- The usual small improvements all over the place
* tag 'irq-drivers-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
irqchip/gic-v3-its: Fix grammar and replace a bit number with its symbol
irqchip/gic-v3-its: Prevent leak in its_vpe_irq_domain_alloc()
irqchip/renesas-irqc: Fix generic interrupt chip leak on remove
irqchip/gic-v3-its: Enable dynamic MSI-X allocation
irqchip: Remove redundant dev_err()/dev_err_probe()
irqchip/gic-v5/iwb: Fix stray verb in comment
irqchip/qcom-pdc: Fix kernel doc for qcom_pdc_gic_secondary_set_type()
irqchip/gic-v3-its: Fix its node leak in gic_acpi_parse_madt_its()
irqchip/gic-v3-its: Fix memleak in its_probe_one()
irqchip/qcom-pdc: Configure PDC to pass through mode
irqchip/qcom-pdc: Differentiate between direct SPI and GPIO as SPI
irqchip/qcom-pdc: Move all static variables to struct pdc_desc
irqchip/qcom-pdc: Restructure version support
irqchip/irq-imgpdc: Remove unused driver
irqchip/irq-realtek-rtl: Activate multiple parents
irqchip/irq-realtek-rtl: Allow shuffled interrupt order
irqchip/irq-realtek-rtl: Add a select function
irqchip/irq-realtek-rtl: Add mask for interrupt handling
irqchip/irq-realtek-rtl: Add interrupt data structure
irqchip/irq-realtek-rtl: Split out parent setup code
...
|
||
|
Linus Torvalds
|
762fffa407 |
Generic interrupt subsystem updates:
- Remove pointless NULL checks of the kstats_irqs field. That's a
historical left over and not longer required.
- Add Radu Rendec as reviewer. Radu thankfully stepped up to help
reviewing the interrupt core and the related drivers code.
- The usual small improvements and fixes
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Merge tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull generic interrupt subsystem updates from Thomas Gleixner:
- Remove pointless NULL checks of the kstats_irqs field. That's a
historical left over and not longer required.
- Add Radu Rendec as reviewer. Radu thankfully stepped up to help
reviewing the interrupt core and the related drivers code.
- The usual small improvements and fixes
* tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add Radu Rendec as reviewer for the interrupt subsystem
genirq/msi: Move misplaced EXPORT_SYMBOL_GPL for msi_domain_free_irqs_all()
parisc: Remove unnecessary NULL check of the kstat_irqs field
genirq: Remove unnecessary NULL check of the kstat_irqs field
irqdomain: Remove unnedded NULL check in __irq_domain_[de]activate_irq()
genirq/manage: Use irqd_get_parent_data() helper in __irq_get_irqchip_state()
irqdomain: Plug leak in irq_domain_alloc_irqs_locked() error path
|
||
|
Linus Torvalds
|
6138016752 |
Two trivial updates for RSEQ:
- Add the recently added new test binaries to .gitignore
- Fix a trivial typo in a comment.
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Merge tag 'core-rseq-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull rseq updates from Thomas Gleixner:
"Two trivial updates for RSEQ:
- Add the recently added new test binaries to .gitignore
- Fix a trivial typo in a comment"
* tag 'core-rseq-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/rseq: Add missing test binaries to .gitignore
selftests/rseq: Fix spelling of accommodate
|
||
|
Linus Torvalds
|
3424d8c18a |
Generic entry code updates:
- Make syscall user dispatching configurable
Not all architectures can makes use of syscall user dispatching. Allow
them to disable the feature completely.
- Consolidate stack randomization for the generic entry code and the
architectures using it.
Stack randomization on syscall entry was sprinkled throughout the
architecture specific low level entry code and in some cases at the
wrong points, e.g. before establishing state, which violates the
non-instrumentable constraints of that code.
Clean this up by integrating stack randomization into the generic entry
code helpers so that it is invoked at the earliest possible point right
after establishing state and converting all generic entry code using
architecture over.
- Clean up the syscall number handling in the generic entry code. It
works correctly for architectures which have a separate return value
storage in pt_regs, but fails to distinguish the case where user space
handed in -1 as syscall number from the case where the entry code
rejects it by returning -1 to the callers. Aside of that the return
value functionality of those interfaces is not really intuitive.
Fix this by separating the decision to reject a syscall (user dispatch,
ptrace, seccomp ...) from the potential modification of the syscall
number through these mechanisms.
This solves most of the problems for architectures which do not have a
separate return value storage in pt_regs except for the case where a
tracepoint has a BPF script or a probe attached which overwrite both
the syscall number and the return value. But that's a problem which
cannot be solved in the generic code, that only can be addressed by
separating the storage model in the affected architectures.
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Merge tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull generic entry code updates from Thomas Gleixner:
- Make syscall user dispatching configurable
Not all architectures can makes use of syscall user dispatching.
Allow them to disable the feature completely.
- Consolidate stack randomization for the generic entry code and the
architectures using it.
Stack randomization on syscall entry was sprinkled throughout the
architecture specific low level entry code and in some cases at the
wrong points, e.g. before establishing state, which violates the
non-instrumentable constraints of that code.
Clean this up by integrating stack randomization into the generic
entry code helpers so that it is invoked at the earliest possible
point right after establishing state and converting all generic entry
code using architecture over.
- Clean up the syscall number handling in the generic entry code. It
works correctly for architectures which have a separate return value
storage in pt_regs, but fails to distinguish the case where user
space handed in -1 as syscall number from the case where the entry
code rejects it by returning -1 to the callers. Aside of that the
return value functionality of those interfaces is not really
intuitive.
Fix this by separating the decision to reject a syscall (user
dispatch, ptrace, seccomp ...) from the potential modification of the
syscall number through these mechanisms.
This solves most of the problems for architectures which do not have
a separate return value storage in pt_regs except for the case where
a tracepoint has a BPF script or a probe attached which overwrite
both the syscall number and the return value. But that's a problem
which cannot be solved in the generic code, that only can be
addressed by separating the storage model in the affected
architectures.
* tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
entry, treewide: Make syscall_enter_from_user_mode[_work]() indicate syscall execution
entry: Make return type of syscall_trace_enter() bool
entry: Rework trace_syscall_enter()
entry: Rework syscall_audit_enter()
syscall_user_dispatch: Introduce ARCH_SUPPORTS_SYSCALL_USER_DISPATCH
entry: Fix seccomp bypass after ptrace with TSYNC
x86/entry: Simplify the syscall number logic
x86/entry: Get rid of the sys_ni_syscall() indirection
x86/entry: Make syscall functions static
ptrace, treewide: Rename ptrace_report_syscall_entry() to ptrace_report_syscall_permit_entry()
seccomp, treewide: Rename and convert __secure_computing() to return boolean
entry: Use syscall number instead of rereading it
entry: Remove syscall_enter_from_user_mode()
x86/syscall: Use [syscall_]enter_from_user_mode_randomize_stack()
s390/syscall: Use enter_from_user_mode_randomize_stack()
riscv/syscall: Use syscall_enter_from_user_mode_randomize_stack()
powerpc/syscall: Use syscall_enter_from_user_mode_randomize_stack()
loongarch/syscall: Use syscall_enter_from_user_mode_randomize_stack()
entry: Provide [syscall_]enter_from_user_mode_randomize_stack()
randomize_kstack: Provide add_random_kstack_offset_irqsoff()
...
|
||
|
Linus Torvalds
|
3a0dd7ba4f |
x86/documentation changes for v7.3:
- Misc x86 documentation updates (Randy Dunlap, Daniel Gibson) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC4VIRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gfEA//ZDjmJtsROLRciQmobsT5tDnyCwQXRuFJ 2sZgBvcdYjKZOUbnq2JHNu2x//mQ3I+/GHoqgB25ISVtuurHj/lh9CBpxthECcBv 6cAXd4iJ8I8kYKPM7oHvSs7Jnxp0Z9Iea4lYO5z6l5O0WX2Cr5/jvkt3Lx0pzVwr Mat+VrlDR04QRtKK9ohwTfotYx/O4SdL04cT2uLuLj0EGG3nxBFgGsHszO7oG5Yh CGFgW81Ju2IVeQ/XaOjWKAOZMN4yb4bjsA/oL9TnDhaayYXeznHE51LzKn3KsUeK Qbys1s3AFvLvdUB+6xaqlzwIxPvgvdCVnzzqb9LFId3Nl/PJgFccFs+Y91D3C+nJ U1ZUhcrAcTW8HfKoNH99M1hvN7NLHq+5AvjL/rpibiQLLcHFND8p1c8SkxC2NVin JF+ufdr8JvfuITSB0STBR9lRiP882qmHZX64F21RqI7vKcXZNkV2DhZXJrU6lZY4 GMxPoWwWiMzGIBpQDuig/dImFOjL8T8UibqJ9d5Vp8+1xkH1KOrOHLa4rMUUJlAT CfuyCY7d8pWa7dTxFHYAQV8+bExw/pxwAwpReOW7m4Ntyxfe49ZC/tCJg9vxsWPr 8P1LKyWHm76mBebrt3/eCY6VkiX6Z0MhkMk0Si+LgccGEVjj88lvn3QgeUkERWkr MGbuZPIiX+4= =tB+O -----END PGP SIGNATURE----- Merge tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 documentation updates from Ingo Molnar: - Misc x86 documentation updates (Randy Dunlap, Daniel Gibson) * tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation/arch/x86/amd-debugging: Add example for reset register x86/intel/quark: Clean up function kernel-doc x86/speculation: Drop Excess function parameter descriptions x86/lib: checksum_64.h: Eliminate all kernel-doc warnings x86/barrier: Use correct parameter names in kernel-doc |
||
|
Linus Torvalds
|
d5b550edad |
x86/core updates for v7.3:
- Optimize the kcfi call sequence (Peter Zijlstra) - Use sfence for wmb() if SSE is available (Yao Zi) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC4LMRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1hXnA/9GnPxgwNrauwIk+gH9DyGDYa93byd+JtE SKVc3RWipSYqrG6cgQoNDnGCN+TLO2lIrCriXRXfisu3F5HMR+VZ+H6KNt0zy3eK EZrMFQpIEX98penD+w9Ae42LBCdLKPKyN9obkdUftIYMYAsW/LtZE9PAy3WqH/0L iyYs1EwpIQuZGRJNxQYbNNVCs+fi1PCP5WmGitO5QHUUqVmyf9g9jFkS3rAAP28v WvDLDWbHBz/1MVV34/jdftuMhOSz8FpwASseozsq7LXPV5yiknlCIf7rgiVlxR89 tmxFYN5Trjk8ORiR0TpknmAxduXtAAt0Mu1vE6ABbLgyaYv99+O21g0dN2KdUdxh 9P8azSVY1rNn8rnrQSNsfoEv+TrPT+22iTcQd4Z2/wKc0D51CoGxX4+uY98ybwj5 U47ZUZCVZcnNk4sNnNxevoAEmgCUd092/qcgyOM7PXCsNl/X2g9NfwNu/XtRaog3 3Y1T5TUk+apNKNs2bul2OTvcrwS4GUFLTZTRZp4BuvqkCiuZvv2InWnVVDOjaUXU vpMANFVy8ARYS25Elxeje3v1Dwya/5ZAl8sJhTx9QX7OhTzW1Cn71q2Ur3GYojjz CNGs/rik586HM+NFpRZcHXAnN/nLMZVQjDQxuD3istp3ozqgXKjHqBnecwV6JZKb tAmymfqtYXU= =C/Mp -----END PGP SIGNATURE----- Merge tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core updates from Ingo Molnar: - Optimize the kcfi call sequence (Peter Zijlstra) - Use sfence for wmb() if SSE is available (Yao Zi) * tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/locking: Use sfence for wmb() if SSE is available x86/kcfi: Optimize call sequence |
||
|
Linus Torvalds
|
3dd1f7447f |
x86/build changes for v7.3:
- Only align ENTRY_TEXT to PMD_SIZE if necessary (Hamza Mahfooz) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC39sRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1ji4w/+JbckikVS6wCwuvQUBu0g9wP5zR26Vt5G ZxZtpvqnke0McQLJPA5OftbCEHCt2UHkU/dRSCLHU7pC2aeNrrVM2KJACaxWhnWp oBt7u87BUftNJ8GkQ4Qsdc/QwV4NoAT2BN8LkW0SLH8taamKjNgI826QZ9SM/+zF x2ZMxBUuPnHoVrH++gwWs6VnnNoaKOEG/AeROpOziyRVhbfWDOQq+JMtz4oClq0B TP3vlw69ds6AICrz3y72ytzcoPGru+rg32pSslpeNR4K4yj5IaM6NeWvG6eVZwd8 Uaj7Q+UkGBfuLGRJVSmjalM7+M4aorTvFal4SYA7Af80+4H5viIpwtJPp0Ez3JXB SmPgIiKqGGVfxKgQ40TUg2tjU6YaiXRqc9reHth+c2payK0+54wFXj+14liJnMz9 W2a+UQkUnR0I9cAbSTJxQ5ztl83uT4UD4z+dvqdeIbjw71lDn4tp1nfOndPR5Se+ q+GfA3M2sAABOZ01OGP8/g1KiOpT2sd0Jmr0P+Wz9ZUigDF/FIYe8MSWF3VCa/Ew lerynCceAP+5ib0lDtFpmnqB9/VMTML6ncvmPSM/A/nB18Na3i3h8e1MNRTMbvmS bpha4kn8+6xjDs1M+Mxm/P/RgfUvEXSMPmWD/xDYVSFazKaZJ/5bLHauNWxRweuN YNZed+t3tTM= =EM3D -----END PGP SIGNATURE----- Merge tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 build update from Ingo Molnar: - Only align ENTRY_TEXT to PMD_SIZE if necessary (Hamza Mahfooz) * tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/build: Only align ENTRY_TEXT to PMD_SIZE if necessary |
||
|
Linus Torvalds
|
09d639f1f1 |
x86/boot changes for v7.3:
- Misc simplifications and cleanups (Thorsten Blum) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC314RHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1iIAw//TIQZjw3mST7UIjJiS3YDZEZlYkjyejVi 0FnkZhWomySzIzkJIQlIgWPjgVHI+5mZD7ZDjte0aCc4gRGPnqsxV6os/0QZVdr3 VlDOKdYK0Z31ynE16ceOXV1pHRNyqpD2sDu4sGuszK/oG2EdsBS7RTNkTtIRtnTd uLo3JfYgDs5QgLr6W3Lex8jKvyJCDMCLiHv7BLINnIPZq6G4UdlVufNQONq0qwzs 0hIonKW2WA3/wbG1ffLE/XdJE22K+yY+wdUgzj07CeEve94jX8yY/SS4FYJ+uIWN 5oeup/lIEF/j1JVrH/nAY2aqO0JgIurlkPqYlnrBXIE5hQu5tthNpvu9CFc37Atc FEwcHoSk491vw9JRNucakUs3/b05ujsD0Hi42z8t/3ZpBrfV1oNedcqa5ugdJABR 5IQtAGJz3MlD0GhkkKhSGpfwPCZQeY0BzeZjVLMpA2SK6sDYQMEODK7hUkWRIQ9b Rd2VBRwEw+bOVYSHe7m1LOMToPgdvjulHz+5t6VTm1D1gCiGmv5O6YA2gcw+nPQU vyBsYmUvny7FuF0Gpt3nQRgPZxgzuTs1Kcd2ZdIX57X59rCplOu+N/KKRiAbqC0m BPn+IMT1kUmhwvYvR21n1aEJZGLrf/xsz0cZXAeU8keOgMHy9iCHedu5rV3e6pfu RyYDZA4cwwE= =OiK3 -----END PGP SIGNATURE----- Merge tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 boot updates from Ingo Molnar: - Misc simplifications and cleanups (Thorsten Blum) * tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Use bool and IS_ENABLED() to simplify query_edd() x86/boot: Use IS_ENABLED() to simplify built-in-or-module checks x86/purgatory: Return bool from verify_sha256_digest() |
||
|
Linus Torvalds
|
8dcef8882a |
x86/msr updates for v7.3:
- Streamline the x86 MSR handling APIs along the 64-bit
variants, simplifying the interfaces. Removal of the
old APIs is planned for the next cycle, to reduce
churn & integration pain. (Juergen Gross)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MSR updates from Ingo Molnar:
- Streamline the x86 MSR handling APIs along the 64-bit variants,
simplifying the interfaces.
Removal of the old APIs is planned for the next cycle, to reduce
churn & integration pain (Juergen Gross)
* tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86/mce: Work around build warning after MSR-interface switch
cpufreq: Stop using 32-bit MSR interfaces
x86/featctl: Stop using 32-bit MSR interfaces
KVM/x86: Stop using 32-bit MSR interfaces
x86/mtrr: Stop using 32-bit MSR interfaces
acpi: Stop using 32-bit MSR interfaces
powercap: Stop using 32-bit MSR interfaces
thermal/intel: Stop using 32-bit MSR interfaces
x86/olpc: Stop using 32-bit MSR interfaces
x86/hyperv: Stop using 32-bit MSR interfaces
hwmon: Stop using 32-bit MSR interfaces
EDAC: Stop using 32-bit MSR interfaces
x86/cpu: Stop using 32-bit MSR interfaces
x86/apic: Stop using 32-bit MSR interfaces
x86/resctrl: Stop using 32-bit MSR interfaces
x86/tsc: Stop using 32-bit MSR interfaces
x86/amd: Stop using 32-bit MSR interfaces
x86/pci: Stop using 32-bit MSR interfaces
x86/hygon: Stop using 32-bit MSR interfaces
x86/mce: Stop using 32-bit MSR interfaces
...
|
||
|
Linus Torvalds
|
e2457a664e |
Scheduler updates for v7.3:
Load-balancing updates:
- Series to 'flatten the pick': improve cgroup scheduling, which has
always been problematic and painful, which has caused various
scheduling misbehavior such as the mishandling of reniced tasks et al.
Add various cgroup weight distribution methods via cgroup_mode:
'up', 'max', 'concur' and 'tasks' - with the default being 'concur'
which is the most precise yet also most expensive version.
Finally, change cgroup scheduling to a single runqueue.
(Peter Zijlstra)
- Series to improve the scheduling latency of short slice tasks
(Vincent Guittot)
- Series to fix cluster scheduling in the presence of asymmetric capacity
(Ricardo Neri)
- Prefer fully idle cores for NOHZ balancing (Andrea Righi)
- Don't trigger active load-balancing if src_rq->curr is not on_rq
(Xin Zhao)
PSI updates:
- Skip irqtime accounting when no new irq time has elapsed
(Usama Arif)
Scheduler debugging updates:
- Remove unused schedstats (Shrikanth Hegde)
- Defer freeing of cpumask memblock memory to initcall
(Waiman Long)
Misc fixes and updates by Yu C Chen, K Prateek Nayak, Peter Zijlstra,
Vincent Guittot, Xin Zhao, Yury Norov, Zhan Xusheng.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Load-balancing updates:
- 'flatten the pick': improve cgroup scheduling, which has always
been problematic and painful, which has caused various scheduling
misbehavior such as the mishandling of reniced tasks et al.
Add various cgroup weight distribution methods via cgroup_mode:
'up', 'max', 'concur' and 'tasks' - with the default being 'concur'
which is the most precise yet also most expensive version.
Finally, change cgroup scheduling to a single runqueue (Peter
Zijlstra)
- Series to improve the scheduling latency of short slice tasks
(Vincent Guittot)
- Series to fix cluster scheduling in the presence of asymmetric
capacity (Ricardo Neri)
- Prefer fully idle cores for NOHZ balancing (Andrea Righi)
- Don't trigger active load-balancing if src_rq->curr is not on_rq
(Xin Zhao)
PSI updates:
- Skip irqtime accounting when no new irq time has elapsed (Usama
Arif)
Scheduler debugging updates:
- Remove unused schedstats (Shrikanth Hegde)
- Defer freeing of cpumask memblock memory to initcall (Waiman Long)
Misc fixes and updates by Yu C Chen, K Prateek Nayak, Peter Zijlstra,
Vincent Guittot, Xin Zhao, Yury Norov, Zhan Xusheng"
* tag 'sched-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
sched/fair: Fix flat hierarchy
sched/isolation: Defer freeing of cpumask memblock memory to initcall
sched/topology: Restore SD_PREFER_SIBLING in domains with asymmetric capacity
sched/fair: Allow load balancing between CPUs of identical capacity
sched/fair: Skip misfit load accounting when the destination CPU cannot help
sched/fair: Check CPU capacity before comparing group types during load balance
sched/fair: Also gate overloaded status update for SD_ASYM_CPUCAPACITY
sched/fair: Do not skip CPUs of similar capacity with busy SMT siblings
sched/fair: Prefer fully idle cores for NOHZ balancing
stop_machine: Make stop_one_cpu_nowait() return void
sched/eevdf: Delayed dequeue task can't preempt
sched/fair: Fix stale comments referring to removed CFS concepts
sched/debug: Remove unused schedstats
sched/psi: skip irqtime accounting when no new irq time has elapsed
sched/fair: Reflow sched_balance_rq()
sched/fair: Simplify balance_interval reset logic in sched_balance_rq()
sched/fair: Don't trigger active lb if src_rq->curr is not on_rq
sched/eevdf: Speedup short slice task scheduling
sched/eevdf: Always update slice protection
sched/eevdf: Cancel slice protection if short slice task is eligible
...
|
||
|
Linus Torvalds
|
dfa35434d7 |
Locking updates for v7.3:
Futexes:
- Use runtime constants for futex_hash computation
(K Prateek Nayak, Peter Zijlstra)
- Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)
- Avoid private hash use-after-free on final put (Felix Hoffmann)
- Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)
Rust integration updates:
- Implement refcounted interrupt disable and SpinLockIrq for Rust
(Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)
- Rust sync: add helpers for mb, dma_mb and friends;
add generic memory barriers and use LKMM atomics
instead of Rust atomics in the revocable code (Gary Guo)
- Add abstraction and integrate synchronize_rcu() (Philipp Stanner)
Lock debugging:
- Add qspinlock contended_release tracepoint
(Dmitry Ilvokhin, Peter Zijlstra)
- Enable the printing of held locks of remote running tasks and print
task CPU (Ingo Molnar)
- percpu-rwsem: Annotate intentional data race in readers_active_check()
(Sun Shaojie)
Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
Naveen Kumar Chaudhary and Thomas Huth.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futexes:
- Use runtime constants for futex_hash computation (K Prateek Nayak,
Peter Zijlstra)
- Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)
- Avoid private hash use-after-free on final put (Felix Hoffmann)
- Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)
Rust integration updates:
- Implement refcounted interrupt disable and SpinLockIrq for Rust
(Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)
- Rust sync: add helpers for mb, dma_mb and friends; add generic
memory barriers and use LKMM atomics instead of Rust atomics in the
revocable code (Gary Guo)
- Add abstraction and integrate synchronize_rcu() (Philipp Stanner)
Lock debugging:
- Add qspinlock contended_release tracepoint (Dmitry Ilvokhin, Peter
Zijlstra)
- Enable the printing of held locks of remote running tasks and print
task CPU (Ingo Molnar)
- percpu-rwsem: Annotate intentional data race in readers_active_check()
(Sun Shaojie)
Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
Naveen Kumar Chaudhary and Thomas Huth"
* tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
rust: sync: Introduce SpinLockIrq::lock_with() and friends
rust: sync: Add SpinLockIrq
rust: sync: Use super::* in spinlock.rs
rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers
rust: Introduce interrupt module
s390/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS
sched: Avoid signed comparison of preempt_count() in __cant_migrate()
sched: Remove the unused preempt_offset parameter of __cant_sleep()
locking: Switch to _irq_{disable,enable}() variants in cleanup guards
irq: Add KUnit test for refcounted interrupt enable/disable
irq,spin_lock: Add counted interrupt disabling/enabling
openrisc: Include <linux/cpumask.h> in smp.h
preempt: Introduce __preempt_count_{sub,add}_return()
preempt: Introduce HARDIRQ_DISABLE_BITS
preempt: Track NMI nesting to separate per-CPU counter
futex: Tell kmemleak we're not leaking __futex_queues
x86/paravirt: Trace contended_release on unlock
tracing/lock: Use TRACE_EVENT_FN() for contended_release
...
|
||
|
Linus Torvalds
|
8915457146 |
Performance events updates for v7.3:
uprobes updates:
- Patch series to fix a category of bugs with optimized uprobes that
can clobber the redzone area with call instruction storing return
address on stack where user code may keep temporary data without
adjusting RSP. Fix this by moving the optimized uprobes on top of
10-bytes NOP instruction, so we can squeeze another instruction to
escape the redzone area before doing the call.
(Jiri Olsa, Andrii Nakryiko)
- Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
(Puranjay Mohan)
Intel CPU PMU driver updates:
- Optimize ACR handling in match_prev_assignment() (Dapeng Mi)
- Patch series to fix various PMU driver bugs and data leaks (Dapeng Mi)
- Fix Intel PT stop/start with no update (Adrian Hunter)
Intel uncore PMU driver updates:
- Series to fix various uncore PMU setup robustness bugs (Zide Chen)
AMD uncore PMU driver updates:
- Add group validation (Sandipan Das)
Misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"uprobes updates:
- Fix a category of bugs with optimized uprobes that can clobber the
redzone area with call instruction storing return address on stack
where user code may keep temporary data without adjusting RSP.
Fix this by moving the optimized uprobes on top of 10-bytes NOP
instruction, so we can squeeze another instruction to escape the
redzone area before doing the call (Jiri Olsa, Andrii Nakryiko)
- Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
(Puranjay Mohan)
Intel CPU PMU driver updates:
- Optimize ACR handling in match_prev_assignment() (Dapeng Mi)
- Fix various PMU driver bugs and data leaks (Dapeng Mi)
- Fix Intel PT stop/start with no update (Adrian Hunter)
Intel uncore PMU driver updates:
- Fix various uncore PMU setup robustness bugs (Zide Chen)
AMD uncore PMU driver updates:
- Add group validation (Sandipan Das)
.. and misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen"
* tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
perf/x86: Optimize ACR handling in match_prev_assignment()
perf/x86/intel: Fix intel_cap handling on hybrid PMUs
perf/x86: Remove stale fixed counter helper and fix hybrid PMU access
perf/x86/intel: Unwind cpuc state if PEBS buffer setup fails
perf/x86: Guard intel_pmu_cpu_dead() against invalid hybrid PMU casts
perf/x86: Free hybrid state on PMU init failure
perf/x86: Unregister PMI handler on PMU init failure
perf/x86/intel/pt: Fix stop/start with no update
perf/x86/intel/pt: Use bitwise access for PERF_HES_STOPPED
perf/x86/intel/pt: Factor out pt_config_enable()
uprobes: Switch uretprobes_srcu to SRCU-fast-updown
srcu: Add lock guard for srcu_fast_updown flavor
perf/x86/intel/pt: Drop kernel-doc for deleted struct members
perf/x86/amd/uncore: Add group validation
selftests/bpf: Add tests for forked/cloned optimized uprobes
selftests/bpf: Add tests for uprobe nop10 red zone clobbering
selftests/bpf: Add reattach tests for uprobe syscall
selftests/bpf: Change uprobe/usdt trigger bench code to use nop10
selftests/bpf: Change uprobe syscall tests to use nop10
selftests/bpf: Emit nop,nop10 instructions combo for x86_64 arch
...
|
||
|
Linus Torvalds
|
a0acd94e38 |
Objtool updates for v7.3:
- Fix various klp-build bugs reported by Joe Lawrence
(Josh Poimboeuf, Joe Lawrence)
- Misc fixes and cleanups (Puranjay Mohan, Thomas Huth and Ingo Molnar).
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Fix various klp-build bugs reported by Joe Lawrence (Josh Poimboeuf,
Joe Lawrence)
- Misc fixes and cleanups (Puranjay Mohan, Thomas Huth and Ingo Molnar)
* tag 'objtool-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool/klp: Fix vmlinux klp relocations for EXPORT_SYMBOL_FOR_MODULES()
objtool/klp: Fix .kcfi_traps special section extraction
objtool/klp: Fix vmlinux .klp.symid link error for .exitcall.exit symbols
objtool/klp: Fix line numbers in Module.symvers parse errors
objtool/klp: Fix relocations for EXPORT_SYMBOL_FOR_MODULES() symbols
objtool/klp: Allow new references to module exports
objtool/klp: Don't match local symbols against exports
objtool/klp: Fix cross-module klp relocation section naming
objtool/klp: Explicitly disallow patching or referencing init code/data
objtool/klp: Ignore replacement offset of empty x86 alternatives
objtool/klp: Fix size of empty special section entries
objtool/klp: Fix vmlinux .klp.symid link error for .no_trim_symbol symbols
objtool/headers: Sync tools/include/linux/objtool_types.h with include/linux/objtool_types.h
objtool: Replace __ASSEMBLY__ with __ASSEMBLER__ in header files
objtool/klp: Fix symbol resolution for duplicate data symbols
objtool/klp: Add .klp.symid for sympos disambiguation
objtool/klp: Skip hidden directories when finding objects
objtool/klp: Fix false module dependencies caused by dead relocs
objtool/klp: Normalize Module.symvers paths to module names
objtool/klp: Fix module name normalization for paths with dots
|
||
|
Linus Torvalds
|
1200d84f4c |
powerpc updates for 7.3
- powerpc: Enable Rust for ppc64le - ppc4xx gpio driver updates - Add power12 base enablement support - Validate arch_compat against host compatibility mode - Simplify bootx_scan_dt_build_struct() in powermac platform - powerpc: implement get_direction() in cpm2 - Use cpu_relax() in ps3_create_spu() - Add NULL guard for cause_ipi in smp_muxed_ipi_message_pass - fixes to handle pseries watchdogs in kdump path - powerpc/irq: Fix missing r2 clobber in PCREL inline assembly - ppc44x: Set GPIO chip parent - KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl BY: Amit Machhiwal - KVM: powerpc: Use generic xfer to guest work function - Enable to run posix cpu timers in task context - misc fixes and cleanups Thanks to: Aditya Gupta, Alice Ryhl, Amit Machhiwal, Andrew Morton, Anushree Mathur, Athira Rajeev, Bartosz Golaszewski, Cédric Le Goater, Christian König, Christophe Leroy (CS GROUP), Gary Guo, Gaurav Batra, Gautam Menghani, Gou Hao, Hari Bathini, Harsh Prateek Bora, jiazhenyuan, Jinjie Ruan, Link Mauve, Linus Walleij, Mahesh Kumar G Mahesh Salgaonkar, Michael Walle, Michal Suchánek, Mukesh Kumar Chaurasiya (IBM), Nicholas Piggin, Nikhil Kumar Singh, Praveen K Pandey, Ritesh Harjani (IBM), Rosen Penev, Saket Kumar Bhaskar, Shrikanth Hegde, Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Vishal Chourasia, Wentao Guan, Yanfei Xu -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEqX2DNAOgU8sBX3pRpnEsdPSHZJQFAmqCj/4ACgkQpnEsdPSH ZJSKNg//VNpbzMKVPrdljgLn3P8/flWUUMvbjT0j2s5OExeFPjM9tvJQucMficJz eQWaEZbaczRPdtBDt96NXXDIoXGpfapS1Tj18OjVjCRtQdKV4DGfNdE5wC2tKwvA 1R6x5FT6pGxCRuNY9o3aAo/qcEJLCWCtOvrgdlT8C9ZV8Zh/GRl5TXBYqB4LFYAd WI1Jc4s97VFNtPSh7HtImd5n8T8vNWqQzi1rUAWTYQPduV8eHKFhnyu9vIh2ISv8 p6dZzE6mLrgn7zU8HW2z5nRyRZFRXtWt3i7/0IGSsJYtBoREsFw2d3LJfwMZXwdU hXNbw9OlwDmPUF8+qFIEVu3czfiFW1naNEXP00NJfM+67acXIpFEiJ/LvuLENzC4 gtX1VKUCQthWxJESnX1WrKnP7BAjUGe691CronRoYIJNctLnrCA7SOfJ2El4i40v v0+oz8KceGE3AU/1SpcKC8WlrHGb7qDBHS1HD8wpdcMsL1LTUWlghAptc/CrpRSb vDbiQAK7RHAEVSx6CsW1pVdFGOk5k7QQgeX6ptyK2aliQhuS4UA5b7zMmE+agPY4 Pro2bQLZYPfIW92OB1Zf+h69bUn4aVyp5ov1U1kTJuFHSEH+9+ZVemZg/f2fN8LV bwgErs0YPL/N5099qolj9mmNvn8RcVwub6nIGrVryGbBLprlV3o= =4Mg5 -----END PGP SIGNATURE----- Merge tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Madhavan Srinivasan: - Enable Rust for ppc64le - ppc4xx gpio driver updates - Add power12 base enablement support - Validate arch_compat against host compatibility mode - Simplify bootx_scan_dt_build_struct() in powermac platform - Implement get_direction() in cpm2 - Use cpu_relax() in ps3_create_spu() - Add NULL guard for cause_ipi in smp_muxed_ipi_message_pass - Fixes to handle pseries watchdogs in kdump path - Fix missing r2 clobber in PCREL inline assembly - Set GPIO chip parent on ppc44x - KVM: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl - KVM: Use generic xfer to guest work function - Enable to run posix cpu timers in task context - Misc fixes and cleanups Thanks to Aditya Gupta, Alice Ryhl, Amit Machhiwal, Andrew Morton, Anushree Mathur, Athira Rajeev, Bartosz Golaszewski, Cédric Le Goater, Christian König, Christophe Leroy (CS GROUP), Gary Guo, Gaurav Batra, Gautam Menghani, Gou Hao, Hari Bathini, Harsh Prateek Bora, jiazhenyuan, Jinjie Ruan, Link Mauve, Linus Walleij, Mahesh Kumar G Mahesh Salgaonkar, Michael Walle, Michal Suchánek, Mukesh Kumar Chaurasiya (IBM), Nicholas Piggin, Nikhil Kumar Singh, Praveen K Pandey, Ritesh Harjani (IBM), Rosen Penev, Saket Kumar Bhaskar, Shrikanth Hegde, Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Vishal Chourasia, Wentao Guan, and Yanfei Xu. * tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (62 commits) powerpc/pseries/iommu: switch to Default DMA window during kdump powerpc/configs: enable CONFIG_RAS to fix EDAC support KVM: PPC: Document KVM_PPC_GET_COMPAT_CAPS ioctl KVM: PPC: Book3S HV: Add support for compat CPU capabilities for KVM on PowerNV KVM: PPC: Book3S HV: Implement compat CPU capability retrieval for KVM on PowerVM KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl gpio: ppc44x: use dev_name() for chip label gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro gpio: ppc44x: drop PPC-specific IO helpers gpio: ppc44x: Convert GPIO to generic MMIO gpio: ppc44x: Use platform resource helper for GPIO MMIO gpio: ppc44x: Use module platform driver helper for GPIO gpio: ppc44x: update all 4xx to 44x gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio KVM: PPC: Use min() in kvm_vm_ioctl_check_extension() KVM: PPC: booke: Use min() in watchdog_next_timeout() powerpc/perf: Add power12 Base Performance Monitoring support powerpc: Add Power12 architected mode powerpc: Add Power12 raw mode powerpc/pseries: Limit PVR list to 16 entries for CAS negotiation ... |
||
|
Linus Torvalds
|
85cdaca697 |
arm64 updates for 7.3
ACPI:
- Combine reads of AMU counters into a single FFH feedback counter op.
Confidential computing:
- Fix smp_processor_id() in preemptible context when retrieving an
attestation token inside a realm.
- Convert pKVM over to a "CC platform".
- Clean-up our SWIOTLB configuration in preparation for reworking the
handling of encrypted/decryped DMA buffers in the dma-mapping tree.
CPU errata handling:
- Work around broken device memory ordering on NVIDIA Olympus cores.
- Fix broken 'nospectre_bhb' command-line option.
- Select the idle loop backend instruction on the command-line.
CPU features:
- Replace our BBML2-noabort feature with the new architectural BBML3
feature.
- Disable in-kernel BTI for recent versions of Clang due to issues with
livepatch that are still being investigated.
- Clean-up documentation describing which ID register fields are exposed
to userspace.
Interrupts:
- Preliminary work towards supporting FEAT_NMI, which cleans up our
IRQ entry code and fixes some latent issues with pseudo-NMI.
- Support for an SDEI backend to trigger an NMI backtrace.
Memory management:
- Treat all devices as coherent when CLIDR_EL1.LoC == 0.
- Fix no-map handling of sub-page-sized regions.
- Second attempt at unmapping the linear aliases of the kernel data and
bss sections.
- Fix EFI runtime calls when software-PAN is enabled.
Miscellaneous:
- Add Mark Rutland as a reviewer!
- Tidy-up our futex cmpxchg logic when using the new LSUI instructions.
- Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when selecting
HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS.
- Fix a false-positive KCSCAN splat in the delay loop.
- Use a portable typedef for 128-bit scalar types in our UAPI headers.
- Non-critical fixes for Sashiko reports all over.
MPAM:
- Hook MPAM memory bandwidth counters into resctrl's counter assignment
interface.
- Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that it
also applies to 63 bit counters.
Perf:
- Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and CPU
PMU (NVIDIA Olympus again!)
- Add support for the DDR PMU on Marvell CN20K SoCs.
- Add support for Picoheart implementations of the DCW PCIe PMU.
- Add support for Channel/Rank/Bank filtering in the CXL PMU driver.
- Add support for 64-bit counters in the CSPMU device.
- Add support for revision 2 of the CMN S3 PMU.
Ptrace:
- Fix a decade-old bug in our handling of seccomp and tracing on syscall
entry.
- Fix regset handling for inactive SVE and SSVE registers.
Selftests
- Add some tests for the decade-old bug that we just tried to fix in our
syscall entry path.
- Fix SVE test crash on SME-only CPUs.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's a reasonable amount of stuff here, including a bunch of
updates to the perf PMU drivers and some MPAM updates to expose the
memory bandwidth counters via resctrl.
On the architecture side, some highlights include support for BBML3
and steps towards support for an architectural NMI solution, all
wrapped up in a web of fixes for latent issues identified by Sashiko.
ACPI:
- Combine reads of AMU counters into a single FFH feedback counter op
Confidential computing:
- Fix smp_processor_id() in preemptible context when retrieving an
attestation token inside a realm
- Convert pKVM over to a "CC platform"
- Clean-up our SWIOTLB configuration in preparation for reworking the
handling of encrypted/decryped DMA buffers in the dma-mapping tree
CPU errata handling:
- Work around broken device memory ordering on NVIDIA Olympus cores
- Fix broken 'nospectre_bhb' command-line option
- Select the idle loop backend instruction on the command-line
CPU features:
- Replace our BBML2-noabort feature with the new architectural BBML3
feature
- Disable in-kernel BTI for recent versions of Clang due to issues
with livepatch that are still being investigated
- Clean-up documentation describing which ID register fields are
exposed to userspace
Interrupts:
- Preliminary work towards supporting FEAT_NMI, which cleans up our
IRQ entry code and fixes some latent issues with pseudo-NMI
- Support for an SDEI backend to trigger an NMI backtrace
Memory management:
- Treat all devices as coherent when CLIDR_EL1.LoC == 0
- Fix no-map handling of sub-page-sized regions
- Second attempt at unmapping the linear aliases of the kernel data
and bss sections
- Fix EFI runtime calls when software-PAN is enabled
Miscellaneous:
- Add Mark Rutland as a reviewer!
- Tidy-up our futex cmpxchg logic when using the new LSUI
instructions
- Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when
selecting HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
- Fix a false-positive KCSCAN splat in the delay loop
- Use a portable typedef for 128-bit scalar types in our UAPI headers
- Non-critical fixes for Sashiko reports all over
MPAM:
- Hook MPAM memory bandwidth counters into resctrl's counter
assignment interface
- Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that
it also applies to 63 bit counters
Perf:
- Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and
CPU PMU (NVIDIA Olympus again!)
- Add support for the DDR PMU on Marvell CN20K SoCs
- Add support for Picoheart implementations of the DCW PCIe PMU
- Add support for Channel/Rank/Bank filtering in the CXL PMU driver
- Add support for 64-bit counters in the CSPMU device
- Add support for revision 2 of the CMN S3 PMU
Ptrace:
- Fix a decade-old bug in our handling of seccomp and tracing on
syscall entry
- Fix regset handling for inactive SVE and SSVE registers
Selftests
- Add some tests for the decade-old bug that we just tried to fix in
our syscall entry path
- Fix SVE test crash on SME-only CPUs"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (95 commits)
arm64/efi: Avoid voluntary preemption with efi_mm installed
arm64: bti: Disable in-kernel BTI with recent versions of Clang
arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit
irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs
arm64: Disable KCSAN instrumentation in delay.o
arm_mpam: Disable driver unbind to avoid UAF
arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt
perf: arm_pmuv3: Zero initialize hw_id branch stack field
arm64: mm: Unmap kernel data/bss entirely from the linear map
iommu/arm-smmu-v3-sva: Use system_supports_bbml3() to detect CPU feature
perf/arm-cmn: Support CMN S3 r2
perf/arm-cmn: Plumb in new filter types
perf/arm-cmn: Refactor event filter data
perf/arm-cmn: Refactor event filter programming
perf/arm-cmn: Rename filter variables for clarity
arm64: mm: fix accidental linear mapping of no-map reserved memory
tools: Ensure tools copy of linux/filter.h exports the UAPI
kselftest/arm64: Fix abi test compilation errors
arch: arm64: add early_param idle=<wfi|yield|nop>
arm64: entry: mask DAIF before returning from C EL1 handlers
...
|
||
|
Linus Torvalds
|
d24f5cdbef |
Rust changes for v7.3
Toolchain and infrastructure:
- Warn when using 'bindgen' < 0.72.1 with 'libclang' >= 22, since that
combination may fail to build. It includes a probe for the bug in
case 'bindgen' happens to be patched, and tests.
In parallel, Nathan updated the instructions for the kernel.org
LLVM+Rust toolchains so that the latest version of 'bindgen' is
installed, which should avoid some of these situations.
- Support testing 'rust_is_available.sh' with 'bash' as '/bin/sh'.
- Fix an objtool warning by adding one more 'noreturn' function for
Rust 1.99.0 (expected 2026-10-01).
- Fix build error in the 'rusttest' target due to ambiguity when the
'rustc-dev' component is installed, which was uncovered by the work
to support Rust's GCC backend ('rustc_codegen_gcc').
- Fix future Clang warnings in the upcoming powerpc support due to
macro redefinitions in the UAPI helper header by including the
arch-aware 'ioctl.h' header.
'kernel' crate:
- Rework module ownership support:
- Move the module-related types into a new 'module' module and make
the 'THIS_MODULE' pointer a constant of 'ModuleMetadata' so that
modules can provide the pointer in const contexts, and add a
'this_module' 'const fn' to retrieve it.
This was enabled by upstream Rust's work on the 'const_mut_refs'
and 'const_refs_to_static' features which were stabilized back
in Rust 1.83.0.
- Teach '#[vtable]' to associate implementations with their owning
module, defaulting to the local one, including fallbacks for
doctests, uses within the 'kernel' crate (like upcoming KUnit
'#[test]'s for DRM) and 'rusttest'.
- Set 'fops.owner' from the module pointer for DRM and miscdevice.
- Migrate Rust Binder and configfs away from the old 'THIS_MODULE'
'static' and finally remove it from the 'module!' macro.
- 'num' module:
- Add the new 'casts' module for lossless integer conversions.
Rust's 'core' library's 'From' implementations do not cover
conversions that are not portable or future-proof. However, the
kernel supports a narrower set of architectures, which makes it
helpful to provide more infallible conversions, instead of having
developers use 'as' casts, which carry the risk of silently
losing data.
This goes along with previous work we did to avoid casts in Rust
kernel code since they are more powerful than needed.
Thus, provide safe 'const' conversion functions (e.g.
'usize_as_u64' and 'u64_into_u8'), as well as the 'FromSafeCast'
and 'IntoSafeCast' extension traits that provide conversions that
are known to be lossless in the kernel, and an 'arch' submodule
defining conversions that are known to be lossless on particular
architectures (e.g. 64-bit platforms). For instance:
// Conversion in const context.
const USIZED_CONST: usize = u8_as_usize(255u8);
// Non-const conversions.
let a = u64::from_safe_cast(4096usize);
let b: u64 = 4096usize.into_safe_cast();
- Add 'Bounded::shr_exact' method in the vein of 'try_shrink' which
shifts a bounded right only if it loses no set bits.
- Fix unsoundness issue in the 'Bounded::shr' method by rejecting,
at compile-time, shifts of at least the type's bit width.
- 'fmt' module:
- Route '{:p}' raw pointer formatting through the kernel's hashed
'%p' format to prevent address leaks, including support for width
and padding. Include tests for both 'no_hash_pointers' case and
the default (hashed) one.
- Fix the '{:p}' forwarding implementation, which could print the
address of a temporary stack variable.
- 'time' module:
- Make 'Delta' generic over its time unit, with a default unit of
nanoseconds ('Nsec'), preserving the existing behavior. Then, add
a 'Jiffy' time unit.
- Add the 'Delta::as_millis_ceil()' method.
- Fix 'as_micros_ceil()' rounding near 'i64::MAX', which could
yield a result one microsecond too small.
- 'sync' module:
- Implement 'ForeignOwnable' for 'ARef<T>', allowing C code to own
an 'ARef<T>'.
- Add a safe abstraction for 'rcu_barrier()'.
- 'error' module: add all of the remaining error codes, except the
deprecated compatibility aliases.
- 'bug' module:
- Fix build error on UML in 'warn_on!' for callers from within
the 'kernel' crate.
- Fix future 'dead_code' warning on arm and loongarch64 and under
'CONFIG_BUG=n' in 'warn_on!', which would trigger with the
upcoming SRCU abstractions.
- Fix future build error in 'rusttest' on cross-compilation cases,
which would trigger when 'warn_on!' has callers inside the
'kernel' crate.
- 'bitfield' module: fix build error for the upcoming support for
Rust's GCC backend ('rustc_codegen_gcc') by always inlining a couple
conversions used in tests.
'pin-init' crate:
- User-visible changes:
- Merge the '__pinned_init' and '__init' methods and make 'Init'
a marker trait.
- Introduce public APIs 'raw_init' and 'raw_try_init' to prevent
users from needing to invoke the internal
'__pinned_init'/'__init' methods.
- Emit errors for duplicate '#[pin]' attributes.
- Link 'Zeroable::zeroed' and 'pin_init::zeroed' in documentation.
- Other changes:
- Fix unwind safety issues.
- Clean up lint 'allow' and 'expect's.
- Overhaul '#[cfg]' handling to pave the way for tuple structs and
self-referential structs.
- Mark many functions as '#[inline]' for better codegen with '-C
opt-level=s' ('CC_OPTIMIZE_FOR_SIZE').
'MAINTAINERS':
- Update 'MODULE SUPPORT' to cover the new 'module' module.
And some other fixes, cleanups and improvements.
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Merge tag 'rust-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Warn when using 'bindgen' < 0.72.1 with 'libclang' >= 22, since
that combination may fail to build. It includes a probe for the bug
in case 'bindgen' happens to be patched, and tests
In parallel, Nathan updated the instructions for the kernel.org
LLVM+Rust toolchains so that the latest version of 'bindgen' is
installed, which should avoid some of these situations
- Support testing 'rust_is_available.sh' with 'bash' as '/bin/sh'
- Fix an objtool warning by adding one more 'noreturn' function for
Rust 1.99.0 (expected 2026-10-01)
- Fix build error in the 'rusttest' target due to ambiguity when the
'rustc-dev' component is installed, which was uncovered by the work
to support Rust's GCC backend ('rustc_codegen_gcc')
- Fix future Clang warnings in the upcoming powerpc support due to
macro redefinitions in the UAPI helper header by including the
arch-aware 'ioctl.h' header
'kernel' crate:
- Rework module ownership support:
- Move the module-related types into a new 'module' module and
make the 'THIS_MODULE' pointer a constant of 'ModuleMetadata'
so that modules can provide the pointer in const contexts, and
add a 'this_module' 'const fn' to retrieve it
This was enabled by upstream Rust's work on the 'const_mut_refs'
and 'const_refs_to_static' features which were stabilized back
in Rust 1.83.0
- Teach '#[vtable]' to associate implementations with their
owning module, defaulting to the local one, including fallbacks
for doctests, uses within the 'kernel' crate (like upcoming
KUnit '#[test]'s for DRM) and 'rusttest'
- Set 'fops.owner' from the module pointer for DRM and
miscdevice
- Migrate Rust Binder and configfs away from the old
'THIS_MODULE' 'static' and finally remove it from the 'module!'
macro
- 'num' module:
- Add the new 'casts' module for lossless integer conversions
Rust's 'core' library's 'From' implementations do not cover
conversions that are not portable or future-proof. However, the
kernel supports a narrower set of architectures, which makes it
helpful to provide more infallible conversions, instead of
having developers use 'as' casts, which carry the risk of
silently losing data
This goes along with previous work we did to avoid casts in
Rust kernel code since they are more powerful than needed
Thus, provide safe 'const' conversion functions (e.g.
'usize_as_u64' and 'u64_into_u8'), as well as the
'FromSafeCast' and 'IntoSafeCast' extension traits that provide
conversions that are known to be lossless in the kernel, and an
'arch' submodule defining conversions that are known to be
lossless on particular architectures (e.g. 64-bit platforms).
For instance:
// Conversion in const context.
const USIZED_CONST: usize = u8_as_usize(255u8);
// Non-const conversions.
let a = u64::from_safe_cast(4096usize);
let b: u64 = 4096usize.into_safe_cast();
- Add 'Bounded::shr_exact' method in the vein of 'try_shrink'
which shifts a bounded right only if it loses no set bits
- Fix unsoundness issue in the 'Bounded::shr' method by
rejecting, at compile-time, shifts of at least the type's bit
width
- 'fmt' module:
- Route '{:p}' raw pointer formatting through the kernel's hashed
'%p' format to prevent address leaks, including support for
width and padding. Include tests for both 'no_hash_pointers'
case and the default (hashed) one
- Fix the '{:p}' forwarding implementation, which could print the
address of a temporary stack variable
- 'time' module:
- Make 'Delta' generic over its time unit, with a default unit of
nanoseconds ('Nsec'), preserving the existing behavior. Then,
add a 'Jiffy' time unit
- Add the 'Delta::as_millis_ceil()' method
- Fix 'as_micros_ceil()' rounding near 'i64::MAX', which could
yield a result one microsecond too small
- 'sync' module:
- Implement 'ForeignOwnable' for 'ARef<T>', allowing C code to
own an 'ARef<T>'
- Add a safe abstraction for 'rcu_barrier()'
- 'error' module: add all of the remaining error codes, except the
deprecated compatibility aliases
- 'bug' module:
- Fix build error on UML in 'warn_on!' for callers from within
the 'kernel' crate
- Fix future 'dead_code' warning on arm and loongarch64 and under
'CONFIG_BUG=n' in 'warn_on!', which would trigger with the
upcoming SRCU abstractions
- Fix future build error in 'rusttest' on cross-compilation
cases, which would trigger when 'warn_on!' has callers inside
the 'kernel' crate
- 'bitfield' module: fix build error for the upcoming support for
Rust's GCC backend ('rustc_codegen_gcc') by always inlining a
couple conversions used in tests
'pin-init' crate:
- User-visible changes:
- Merge the '__pinned_init' and '__init' methods and make 'Init'
a marker trait
- Introduce public APIs 'raw_init' and 'raw_try_init' to prevent
users from needing to invoke the internal '__pinned_init' and
'__init' methods
- Emit errors for duplicate '#[pin]' attributes
- Link 'Zeroable::zeroed' and 'pin_init::zeroed' in documentation
- Other changes:
- Fix unwind safety issues
- Clean up lint 'allow' and 'expect's
- Overhaul '#[cfg]' handling to pave the way for tuple structs
and self-referential structs
- Mark many functions as '#[inline]' for better codegen with '-C
opt-level=s' ('CC_OPTIMIZE_FOR_SIZE')
'MAINTAINERS':
- Update 'MODULE SUPPORT' to cover the new 'module' module
And some other fixes, cleanups and improvements"
* tag 'rust-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (54 commits)
rust: add functions and traits for lossless integer conversions
rust: kernel: add `LocalModule` fallback for `#[vtable]` `impl`s
rust: fmt: route {:p} through HashedPtr to prevent address leaks
rust: fmt: fix {:p} printing stack addresses
rust: module: update MAINTAINERS to cover module.rs
rust: macros: remove `THIS_MODULE` static from `module!`
rust_binder: use `LocalModule` for `THIS_MODULE`
rust: configfs: use `LocalModule` for `THIS_MODULE`
rust: miscdevice: set fops.owner from driver module pointer
rust: drm: set fops.owner from driver module pointer
rust: macros: auto-insert OwnerModule in #[vtable]
rust: doctest: add LocalModule fallback for #[vtable] ThisModule
rust: module: add `THIS_MODULE` const to `ModuleMetadata` trait
rust: module: move module types into `module.rs`
rust: num: add Bounded::shr_exact
rust: num: reject Bounded::shr overshifts at build time
rust: num: use const_assert! in Bounded
rust: uapi: replace direct asm-generic/ioctl.h include with linux/ioctl.h
rust: time: add Delta::as_millis_ceil()
rust: time: add jiffies time unit for Delta
...
|
||
|
Linus Torvalds
|
2df813c9a6 |
xen: branch for v7.3-rc1
-----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCan7REhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQgFxhu0/YY75juwEAlRbj7JVSkZ8QzreYEtGm RO+PqRW1e2A7LWX6HHIxdWwBAMz/TX2SNAtKhNs4ggJmOyasQNGqjrpxuRa/1d/n FzQO =3QbE -----END PGP SIGNATURE----- Merge tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - Small cleanups for the Xen ACPI pad driver and the gnttab driver - Fix an issue with Xen PV device initialization seen with QubesOS tests - Fixes for the Xen balloon driver and the xenbus driver - Simplify Xen related kernel configuration * tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xenbus: Unregister reboot notifier on init failure x86/xen: Drop CONFIG_XEN_PVHVM_SMP xen: Drop CONFIG_XEN_AUTO_XLATE xen: Drop CONFIG_XEN_PVHVM x86/xen: Remove redundant config dependency on X86_LOCAL_APIC x86/xen: fix init of balloon stats again xen/xenbus: check otherend_id only after it has been initialized xen/xenbus: log more information when device state got reset Xen/gnttab: adjust two uses of sizeof() ACPI: PAD: xen: Stop setting acpi_device_name/class() |
||
|
Linus Torvalds
|
2063dd9d0b |
nolibc changes for v7.3
Highlights: * New architectures: Alpha * New library functionality: readlink(), getcwd() * Various bugfixes and cleanups -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTg4lxklFHAidmUs57B+h1jyw5bOAUCan7WEAAKCRDB+h1jyw5b OJl9AQD1L1S4Gvg+e82cFHeQp44+oTbj6evLQrwlRe0GZmZxHQEAhA9qMc0blpfn E7EYaldFXNzbO5Sl4MDwTh2huWj00Qk= =BSX8 -----END PGP SIGNATURE----- Merge tag 'nolibc-20260814-for-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc Pull nolibc updates from Thomas Weißschuh: - New architecture: Alpha - New library functionality: readlink(), getcwd() - Various bugfixes and cleanups * tag 'nolibc-20260814-for-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: tools/nolibc: add support for Alpha tools/nolibc/powerpc: mark ctr and xer as clobbered by system call tools/nolibc: remove dead __ARCH_WANT_SYS_OLD_SELECT selftests/nolibc: add debug information tools/nolibc: mark arg1 operand in __nolibc_syscall0() as write-only selftests/nolibc: Add test for getcwd() and readlink() tools/nolibc: unistd: Add readlink() tools/nolibc: unistd: Add getcwd() |
||
|
Linus Torvalds
|
7b24dd46a7 |
liveupdate: updates for v7.3-rc1
KHO:
* Fix size calculation in kho_preserved_memory_reserve() for preservations
larger than 2 GiB
LUO:
* move liveupdate selftest utilities into a library so that selftests of
subsystems participating in liveupdate, e.g. PCI and VFIO, can use them and
drop direct ioctl calls from the tests
* add end to end liveupdate test infrastructure that allows running the
tests across a kexec in QEMU
* remove redundant INIT_LIST_HEAD in luo_session_alloc()
* remember the error status of an FLB retrieve() and return it on subsequent
attempts rather than retrying retrieve() with an FLB in an unexpected
state
* reference count the outgoing FLB so that it cannot be freed while a caller
is using it, the same way it's done for the incoming FLB
* reject nonzero reserved field in LIVEUPDATE_SESSION_FINISH so that it can
be reused by a future extension
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Merge tag 'liveupdate-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux
Pull liveupdate updates from Mike Rapoport:
"Kexec Handover:
- Fix size calculation in kho_preserved_memory_reserve() for
preservations larger than 2 GiB
Live Update Orchestrator:
- move liveupdate selftest utilities into a library so that selftests
of subsystems participating in liveupdate, e.g. PCI and VFIO, can
use them and drop direct ioctl calls from the tests
- add end to end liveupdate test infrastructure that allows running
the tests across a kexec in QEMU
- remove redundant INIT_LIST_HEAD in luo_session_alloc()
- remember the error status of an FLB retrieve() and return it on
subsequent attempts rather than retrying retrieve() with an FLB in
an unexpected state
- reference count the outgoing FLB so that it cannot be freed while a
caller is using it, the same way it's done for the incoming FLB
- reject nonzero reserved field in LIVEUPDATE_SESSION_FINISH so that
it can be reused by a future extension"
* tag 'liveupdate-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux:
kho: fix size calculation in kho_preserved_memory_reserve()
selftests/liveupdate: Move luo_test_utils.* into a reusable library
selftests/liveupdate: Use luo_test_utils.c for liveupdate ioctl APIs
liveupdate: Remember FLB retrieve() status
liveupdate: Reference count outgoing FLB data
liveupdate: reject nonzero reserved value for SESSION_FINISH
liveupdate: Remove redundant INIT_LIST_HEAD in luo_session_alloc
selftests/liveupdate: add end to end test infrastructure and scripts
|
||
|
Linus Torvalds
|
ba24659b1d |
kexec: updates for v7.3-rc1
* Deduplicate crash memory allocation and the exclusion of reserved crash kernel regions from architecture specific code into a generic crash_prepare_headers() and enable crashkernel CMA reservation on arm64 and riscv reservation on arm64 and riscv. * Skip purgatory checksum verification when the kexec segments cannot be corrupted by DMA, which saves about 250ms on kexec. * Replace __ASSEMBLY__ with the compiler provided __ASSEMBLER__ in include/linux/kexec.h. * Fix a keyring refcount imbalance in the kdump kernel's dm-crypt key restore path, which over-dropped the user keyring reference when more than one key was restored. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEeOVYVaWZL5900a/pOQOGJssO/ZEFAmp9ouoACgkQOQOGJssO /ZEH/Af/b1qmnw8uUe2wzd1zcAEEsk6YwF8lmS5o4k7skiVKlHWQuDzPrwrxFTvg d6obJrLllMN2ULyLQ8ghMKbsdo8RCGBIpXF+bPEXmIF8bA/PhtDaxvi3scsxvie6 zU3geZbExlzg0Ik525I0DyPoEZc2JAg5ietp8bF6ZN5HNkDtBoNvi2ROc4mR9kzO agrczVnIEuIE3Tk+IfD6081iS3Wz/PjRC+yPBU1yYFobA6/bL7kFma7kED8PnxvI 2+oENcd1FtC/WBlmluZE0BC4SjNcsT1geyzAFlGlRvNzbHdtj13j6mTBSsbRpJMW WdewVpIpFGUqRbUIIdvOISLOcf62lg== =PjFs -----END PGP SIGNATURE----- Merge tag 'kexec-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux Pull kexec updates from Mike Rapoport: - Deduplicate crash memory allocation and the exclusion of reserved crash kernel regions from architecture specific code into a generic crash_prepare_headers() and enable crashkernel CMA reservation on arm64 and riscv reservation on arm64 and riscv. - Skip purgatory checksum verification when the kexec segments cannot be corrupted by DMA, which saves about 250ms on kexec. - Replace __ASSEMBLY__ with the compiler provided __ASSEMBLER__ in include/linux/kexec.h. - Fix a keyring refcount imbalance in the kdump kernel's dm-crypt key restore path, which over-dropped the user keyring reference when more than one key was restored. * tag 'kexec-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux: crash_dump: release keyring reference at the correct time kexec: Replace __ASSEMBLY__ with __ASSEMBLER__ in header file kexec_file: skip checksum verification when safe riscv: kexec_file: Add support for crashkernel CMA reservation arm64: kexec_file: Add support for crashkernel CMA reservation powerpc/kexec_file: Use crash_exclude_core_ranges() helper LoongArch: kexec_file: Use crash_prepare_headers() helper to simplify code riscv: kexec_file: Use crash_prepare_headers() helper to simplify code x86/crash: Use crash_prepare_headers() helper to simplify code arm64: kexec_file: Use crash_prepare_headers() helper to simplify code crash: Add crash_prepare_headers() to exclude crash kernel memory powerpc/crash: sort crash memory ranges before preparing elfcorehdr riscv: kexec_file: Fix crashk_low_res not exclude bug |
||
|
Linus Torvalds
|
38fda1d9d2 |
memblock: updates for 7.3-rc1
Non-urgent fixes:
* Fix calculation of node_spanned_pages when running with kernelcore=mirror
* Properly handle failure to allocate per_cpu_nodestats in
free_area_init_core_hotplug()
* Fix deferred initialization of the memory map for configurations where
node's RAM end is not aligned on PAGES_PER_SECTION
Cleanups:
* Remove redundant pageblock_align() call in free_unused_memmap()
* Remove unnecessary invalid range checks in users of memblock iterators.
Some users of for_each_mem_range() and for_each_mem_pfn_range() verify
that start < end for each range. This is redundant because memblock
iterators guarantee to never return an invalid range
* Stop overlapping zones with kernelcore=mirror and align behaviour of
kernelcore=mirror with other variants of kernelcore=/movablecore=
* Remove redundant updates of numa_nodes_parsed mask in the callers of
numa_add_memblk(), the latter always updates the mask anyway
* Remove unnecessary initialization of pgdat->per_cpu_nodestats to NULL,
the variable is reset to the actual value a few lines below
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Merge tag 'memblock-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock updates from Mike Rapoport:
"Non-urgent fixes:
- Fix calculation of node_spanned_pages when running
with 'kernelcore=mirror'
- Properly handle failure to allocate per_cpu_nodestats
in free_area_init_core_hotplug()
- Fix deferred initialization of the memory map for
configurations where node's RAM end is not aligned
on PAGES_PER_SECTION
Cleanups:
- Remove redundant pageblock_align() call in free_unused_memmap()
- Remove unnecessary invalid range checks in users of memblock
iterators. Some users of for_each_mem_range() and
for_each_mem_pfn_range() verify that start < end for each range.
This is redundant because memblock iterators guarantee to never
return an invalid range
- Stop overlapping zones with 'kernelcore=mirror' and align behaviour
of 'kernelcore=mirror' with other variants of kernelcore and
movablecore
- Remove redundant updates of numa_nodes_parsed mask in the callers
of numa_add_memblk(), the latter always updates the mask anyway
- Remove unnecessary initialization of pgdat->per_cpu_nodestats to
NULL, the variable is reset to the actual value a few lines below"
* tag 'memblock-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: (25 commits)
mm/mm_init: deferred_grow_zone(): fix out-of-range first_deferred_pfn
mm/mm_init: remove unnecessary initialization of pgdat->per_cpu_nodestats
mm/mm_init: remove redundant memset in free_area_init()
mm: numa_memblks: use numa_add_reserved_memblk() in numa_cleanup_meminfo()
arch_numa: remove redundant node_possible_map assignment
mm: numa_memblks: remove redundant numa_nodemask_from_meminfo()
LoongArch: remove redundant numa_nodes_parsed node_set()
arch_numa: remove redundant numa_nodes_parsed node_set()
x86/numa: remove redundant numa_nodes_parsed node_set()
of/numa: remove redundant numa_nodes_parsed node_set()
ACPI: NUMA: remove redundant numa_nodes_parsed node_set()
mm: numa_memblks: set numa_nodes_parsed in numa_add_memblk()
mm/mm_init: handle alloc_percpu failure in free_area_init_core_hotplug
mm/mm_init: drop overlap_memmap_init()
mm/mm_init: don't overlap NORMAL and MOVABLE zones with kernelcore=mirror
mm/hugetlb: remove unnecessary empty range check in hugetlb_bootmem_set_nodes()
mm: remove unnecessary empty range check in early_calculate_totalpages()
powerpc64/kasan: Remove unreachable invalid range check in kasan_init_phys_region()
ARM: remove unreachable invalid range check in kasan_init()
riscv: remove unreachable invalid range check in kasan_init()
...
|
||
|
Linus Torvalds
|
3abe3d0223 |
Kbuild/Kconfig updates for 7.3
Kbuild updates
==============
* Use --force-group-allocation when linking modules
Have the linker resolve the COMDAT groups and place their members as
regular sections instead of possibly leaving multiple copies in the
resulting modules and unnecessary group metadata.
* UAPI header files: Canonicalize __ASSEMBLER__ / __ASSEMBLY__ mixed
use to __ASSEMBLER__
There is an ongoing effort to change __ASSEMBLY__ to __ASSEMBLER__
treewide. For consistency, UAPI headers are normalised to use
__ASSEMBLER__ only. Normalisation is done in two subsequent patches
to simplify a revert in the unexpected case of a regression report.
* link-vmlinux.sh: Improve detection of third pass requirement
* modpost: Canonicalize format of warnings and errors
* Minor changes:
- Remove srctree path from CHECK output
- Set the initial value of subdir-rustflags-y
- Remove broken and unused modules.builtin(.modinfo) targets from
the top-level Makefile
- Add symbol size for kallsyms symbols that can change size
- modpost: Prevent leak when early return no suffix .o in
read_symbols()
- scripts/config: Update usage of POSIX sed
- 'make tags': Add support for rust source files and prevent binary
files from being analysed
- Several spelling mistakes and rephrasing
Kconfig updates
===============
* Add Julian Braha as Kconfig reviewer
* Fix submenu rendering of negative dependencies
* Minor changes:
- merge_config.sh: Keep temp file in the output dir
- Abort rather than loop for ever on EOF
Cc: André Draszik <andre.draszik@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Cc: Breno Leitao <leitao@debian.org>
Cc: Elsie Heck <its@elc.moe>
Cc: Gustavo Luiz Duarte <gustavold@gmail.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Julian Braha <julianbraha@gmail.com>
Cc: Maciej W. Rozycki <macro@orcam.me.uk>
Cc: Martin Weiss <Martin.weiss2410@gmail.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Huang <sef1548@gmail.com>
Cc: Nicolas Schier <n.schier@fritz.com>
Cc: Nicolas Schier <nsc@kernel.org>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Petr Pavlu <petr.pavlu@suse.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Robertus Diawan Chris <robertusdchris@gmail.com>
Cc: Rong Zhang <i@rong.moe>
Cc: Sergei Litvin <litvindev@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Thomas Huth <thuth@redhat.com>
Cc: Xi Ruoyao <xry111@xry111.site>
Cc: Yuntao Wang <yuntao.wang@linux.dev>
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Merge tag 'kbuild-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild/Kconfig updates from Nicolas Schier:
"Kbuild updates:
- Use --force-group-allocation when linking modules
Have the linker resolve the COMDAT groups and place their members
as regular sections instead of possibly leaving multiple copies in
the resulting modules and unnecessary group metadata.
- UAPI header files: Canonicalize __ASSEMBLER__ / __ASSEMBLY__ mixed
use to __ASSEMBLER__
There is an ongoing effort to change __ASSEMBLY__ to __ASSEMBLER__
treewide. For consistency, UAPI headers are normalised to use
__ASSEMBLER__ only. Normalisation is done in two subsequent patches
to simplify a revert in the unexpected case of a regression report.
- link-vmlinux.sh: Improve detection of third pass requirement
- modpost: Canonicalize format of warnings and errors
- Minor changes:
- Remove srctree path from CHECK output
- Set the initial value of subdir-rustflags-y
- Remove broken and unused modules.builtin(.modinfo) targets from
the top-level Makefile
- Add symbol size for kallsyms symbols that can change size
- modpost: Prevent leak when early return no suffix .o in
read_symbols()
- scripts/config: Update usage of POSIX sed
- 'make tags': Add support for rust source files and prevent
binary files from being analysed
- Several spelling mistakes and rephrasing
Kconfig updates:
- Add Julian Braha as Kconfig reviewer
- Fix submenu rendering of negative dependencies
- Minor changes:
- merge_config.sh: Keep temp file in the output dir
- Abort rather than loop for ever on EOF"
* tag 'kbuild-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (23 commits)
modpost: use mod_warn() and mod_error(), clean up logging
modpost: add module as parameter to modpost_log()
kconfig: fix submenu rendering of negative dependencies
kbuild: link-vmlinux.sh: improve detection of third pass requirement
kallsyms: add symbol size for kallsyms symbols that can change size
kbuild: fix modules.builtin(.modinfo) targets in the top-level Makefile
kbuild: set the initial value of subdir-rustflags-y
scripts/config: Use in-place editing (-i) in sed portably
scripts/config: Use POSIX standard ERE (-E) in sed
modpost: prevent leak when early return no suffix .o in read_symbols()
usr: Correct a spelling by changing a letter
fixdep: make gendered language gender-neutral
kconfig: fix minor typos in comments
scripts: fix spelling mistakes
kconfig: abort rather than loop for ever on EOF
scripts/tags.sh: Add support for rust source files
scripts/tags.sh: Prevent binary files appearing in cscope.files
MAINTAINERS: add Julian Braha as Kconfig reviewer
scripts: headers_install.sh: Normalize __ASSEMBLY__ to __ASSEMBLER__
scripts: headers_install.sh: Normalize __ASSEMBLER__ to __ASSEMBLY__
...
|
||
|
Linus Torvalds
|
c5c7a47af8 |
Thermal control updates for 7.3-rc1
- Add support for the Directed Package-level Thermal Interrupt to
the Intel thermal throttling driver to allow package-level thermal
interrupts to go to one specific CPU in a processor package instead
of going to all of the CPUs in it (Ricardo Neri)
- Remove hwmon class devices created for thermal zones when the thermal
zone devices holding them are removed (Rafael Wysocki)
- Use sysfs_emit_at() in trans_table_show() (Thorsten Blum)
- Clean up RFIM groups on DVFS failure and clean up ODVP on probe
failures in the int340x thermal driver (Pengpeng Hou)
- Remove redundant dev_err() from the int340x thermal driver and the
bxt_pmic driver (Pan Chuang)
- Simplify ptc_temperature_write() in the int340x thermal driver by
using kstrtou32_from_user() (Dmitry Antipov)
- Close fd on realloc() failure in the thermometer utility (Amarjeet)
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Merge tag 'thermal-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These include an introduction of Intel Directed Package Thermal
Interrupt support into the thermal throttling driver for Intel
processors, probe failure code path fixes and code cleanups in Intel
thermal drivers, a thermal core fix related to hwmon, a sysfs-related
cleanup of that code, and a thermometer utility fix:
- Add support for the Directed Package-level Thermal Interrupt to the
Intel thermal throttling driver to allow package-level thermal
interrupts to go to one specific CPU in a processor package instead
of going to all of the CPUs in it (Ricardo Neri)
- Remove hwmon class devices created for thermal zones when the
thermal zone devices holding them are removed (Rafael Wysocki)
- Use sysfs_emit_at() in trans_table_show() (Thorsten Blum)
- Clean up RFIM groups on DVFS failure and clean up ODVP on probe
failures in the int340x thermal driver (Pengpeng Hou)
- Remove redundant dev_err() from the int340x thermal driver and the
bxt_pmic driver (Pan Chuang)
- Simplify ptc_temperature_write() in the int340x thermal driver by
using kstrtou32_from_user() (Dmitry Antipov)
- Close fd on realloc() failure in the thermometer utility (Amarjeet)"
* tag 'thermal-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: hwmon: Remove hwmon class device along with its parent
thermal: sysfs: Use sysfs_emit_at() in trans_table_show()
tools/thermal/thermometer: close fd on realloc() failure
thermal: intel: int340x: simplify ptc_temperature_write()
thermal: intel: bxt_pmic: Remove redundant dev_err()
thermal: intel: int340x: Remove redundant dev_err()
thermal: intel: int3400: clean up ODVP on probe failures
thermal: intel: int340x: clean up RFIM groups on DVFS failure
thermal: intel: Add a syscore shutdown callback for kexec reboot
thermal: intel: Add syscore callbacks for suspend and resume
thermal: intel: Enable the Directed Package-level Thermal Interrupt
thermal: intel: Add resources to handle directed package-level thermal interrupts
x86/thermal: Add bit definitions for Intel Directed Package Thermal Interrupt
|
||
|
Linus Torvalds
|
a5778046a0 |
Power management updates for 7.3-rc1
- Minor fixes and cleanups in assorted cpufreq drivers (Dan Carpenter,
Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha Finkelstein,
and Pan Chuang)
- Fix cpufreq table creation and bios_limits() callback in the Rust
bindings (Priya Bala Govindasamy)
- Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan)
- Adjust the .adjust_perf() cpufreq driver callback to allow the
maximum performance value to be passed to drivers and update the
intel_pstate driver to use it (Rafael Wysocki)
- Set policy->cur to the actual requested frequency in the intel_pstate
driver when the performance policy is used (Rafael Wysocki)
- Simplify HWP handling on Broadwell processors in intel_pstate (Rafael
Wysocki)
- Fix setting minimum P-state at init time in intel_pstate (Rafael
Wysocki)
- Consolidate frequency values computation in intel_pstate and clean up
code in that driver (Rafael Wysocki)
- Add missing kernel-doc descriptions for structure and union members
in the amd-pstate driver (David Vernet)
- Handle missing policy in dynamic EPP callbacks in the amd-pstate
driver (EDAMAMEX)
- Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export amd-pstate driver
symbols to the amd-pstate-ut subdriver (K Prateek Nayak)
- Add dynamic EPP as an "energy_performance_preference" mode in
amd-pstate, remove the "amd_dynamic_epp" kernel command line option
and the "dynamic_epp" sysfs attribute, and update the dynamic_epp
documentation accordingly (K Prateek Nayak)
- Add unit tests for CPPC Performance Priority and the "dynamic" EPP
mode in the amd-pstate driver (K Prateek Nayak)
- Set min_limit_freq based on bios_min_perf in amd-pstate and remove
the defensive check for bios_min_perf from it (K Prateek Nayak)
- Fix EPP return type and handle errors in amd-pstate during
initialization, toggle auto_sel in active mode on shared memory
systems, and cache the firmware programmed EPP value (Marco Scardovi)
- Skip tests in amd-pstate-ut if the amd-pstate driver is not in active
use (Qianheng Peng)
- Replace sprintf() with sysfs_emit() in sysfs show in the cpufreq
schedutil governor and fix a self-contradictory comment in
sugov_iowait_apply() (Zhongqiu Han)
- Fix the usage example for the sampling_rate tunable of the ondemand
cpufreq governor in admin-guide (wangxiaodong)
- Avoid using deep idle states during initialization in the intel_idle
driver to work around device handling issues (Rafael Wysocki)
- Fix and refactor the ACPI processor driver code related to ACPI _LPI
support and add ACPI _LPI support to intel_idle based on that ACPI
processor driver update (Rafael Wysocki)
- Backup and restore governor for cpufreq sptests (Yiwei Lin)
- Remove unnecessary sudo from quick_shuffle() and remove unused local
variables from switch_show_governor() in cpufreq selftests (Jinseok
Kim)
- Rename the PM core module parameter prefix to "pm" and allow the PM
transition (DPM) watchdog to be disabled by default (Tzung-Bi Shih)
- Fix off-by-one in wakelocks number limit check in the system sleep
sysfs interface (Haowen Tu)
- Remove kernel-doc markings from helper descriptions in the core
hibernation code (Adi Nata)
- Use %pe to print error pointer values in the hibernation core (Ronan
Marchal)
- Fix memory leak in snapshot_write_next() error path (Malaya Kumar
Rout)
- Delay allocating and linking the next swap_map_page in the
hibernation image saving code until another image page actually
needs to be recorded (Haesung Kim)
- Fix cleanup ordering around scope-based pointers in OPP (Gregor
Herburger).
- Use clk_get_optional() for optional clocks in OPP (Praveen Talari).
- Stop setting runtime_error on runtime resume callback failures to
allow drivers to recover from resume issues (Praveen Talari)
- Handle PMU registration failure during probe in the intel_rapl_tpmi
driver (Sumeet Pawnikar)
- Avoid optional imports in intel_pstate_tracer unless they are really
needed (Yousef Alhouseen)
- Add generic CPPC performance display to the cpupower utility, build
and call CPPC information on non-AMD processors, make cpupower print
kernel and hardware frequency information, and add libm to cpupower
for generic CPPC view (Jeremy Linton)
- Remove conditional return with no effect from cpupower (Sang-Heon
Jeon)
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Merge tag 'pm-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"As has been the case for quite some time, this set of changes is
dominated by cpufreq updates including intel-pstate and amd-pstate
driver updates, minor fixes and cleanups of other assorted cpufreq
drivers, schedutil governor updates, fixes of the Rust bindings, new
hardware support (IPQ5210 in qcom-nvmem), and some updates of self
tests related to cpufreq.
The second largest group of changes are cpuidle updates consisting of
intel_idle driver updates and ACPI processor idle driver updates, both
mostly related to ACPI _LPI support.
There are also updates related to system sleep, mostly in the
hibernation core code, two operating performance points (OPP) updates,
one runtime PM framework update, one power capping update, and some
tools updates including the addition of ACPI CPPC support to cpupower.
Specifics:
- Minor fixes and cleanups in assorted cpufreq drivers (Dan
Carpenter, Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha
Finkelstein, and Pan Chuang)
- Fix cpufreq table creation and bios_limits() callback in the Rust
bindings (Priya Bala Govindasamy)
- Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan)
- Adjust the .adjust_perf() cpufreq driver callback to allow the
maximum performance value to be passed to drivers and update the
intel_pstate driver to use it (Rafael Wysocki)
- Set policy->cur to the actual requested frequency in the
intel_pstate driver when the performance policy is used (Rafael
Wysocki)
- Simplify HWP handling on Broadwell processors in intel_pstate
(Rafael Wysocki)
- Fix setting minimum P-state at init time in intel_pstate (Rafael
Wysocki)
- Consolidate frequency values computation in intel_pstate and clean
up code in that driver (Rafael Wysocki)
- Add missing kernel-doc descriptions for structure and union members
in the amd-pstate driver (David Vernet)
- Handle missing policy in dynamic EPP callbacks in the amd-pstate
driver (EDAMAMEX)
- Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export amd-pstate driver
symbols to the amd-pstate-ut subdriver (K Prateek Nayak)
- Add dynamic EPP as an "energy_performance_preference" mode in
amd-pstate, remove the "amd_dynamic_epp" kernel command line option
and the "dynamic_epp" sysfs attribute, and update the dynamic_epp
documentation accordingly (K Prateek Nayak)
- Add unit tests for CPPC Performance Priority and the "dynamic" EPP
mode in the amd-pstate driver (K Prateek Nayak)
- Set min_limit_freq based on bios_min_perf in amd-pstate and remove
the defensive check for bios_min_perf from it (K Prateek Nayak)
- Fix EPP return type and handle errors in amd-pstate during
initialization, toggle auto_sel in active mode on shared memory
systems, and cache the firmware programmed EPP value (Marco
Scardovi)
- Skip tests in amd-pstate-ut if the amd-pstate driver is not in
active use (Qianheng Peng)
- Replace sprintf() with sysfs_emit() in sysfs show in the cpufreq
schedutil governor and fix a self-contradictory comment in
sugov_iowait_apply() (Zhongqiu Han)
- Fix the usage example for the sampling_rate tunable of the ondemand
cpufreq governor in admin-guide (wangxiaodong)
- Avoid using deep idle states during initialization in the
intel_idle driver to work around device handling issues (Rafael
Wysocki)
- Fix and refactor the ACPI processor driver code related to ACPI
_LPI support and add ACPI _LPI support to intel_idle based on that
ACPI processor driver update (Rafael Wysocki)
- Backup and restore governor for cpufreq sptests (Yiwei Lin)
- Remove unnecessary sudo from quick_shuffle() and remove unused
local variables from switch_show_governor() in cpufreq selftests
(Jinseok Kim)
- Rename the PM core module parameter prefix to "pm" and allow the PM
transition (DPM) watchdog to be disabled by default (Tzung-Bi Shih)
- Fix off-by-one in wakelocks number limit check in the system sleep
sysfs interface (Haowen Tu)
- Remove kernel-doc markings from helper descriptions in the core
hibernation code (Adi Nata)
- Use %pe to print error pointer values in the hibernation core
(Ronan Marchal)
- Fix memory leak in snapshot_write_next() error path (Malaya Kumar
Rout)
- Delay allocating and linking the next swap_map_page in the
hibernation image saving code until another image page actually
needs to be recorded (Haesung Kim)
- Fix cleanup ordering around scope-based pointers in OPP (Gregor
Herburger).
- Use clk_get_optional() for optional clocks in OPP (Praveen Talari).
- Stop setting runtime_error on runtime resume callback failures to
allow drivers to recover from resume issues (Praveen Talari)
- Handle PMU registration failure during probe in the intel_rapl_tpmi
driver (Sumeet Pawnikar)
- Avoid optional imports in intel_pstate_tracer unless they are
really needed (Yousef Alhouseen)
- Add generic CPPC performance display to the cpupower utility, build
and call CPPC information on non-AMD processors, make cpupower
print kernel and hardware frequency information, and add libm to
cpupower for generic CPPC view (Jeremy Linton)
- Remove conditional return with no effect from cpupower (Sang-Heon
Jeon)"
* tag 'pm-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
cpufreq: imx6q: fix out-of-bounds write when probed more than once
cpufreq: imx6q: fix devres accumulation across driver rebind
rust: cpufreq: Fix temporary write in Registration::bios_limit_callback
rust: cpufreq: Add CPUFREQ_TABLE_END as last table entry in TableBuilder::to_table
opp: Use clk_get_optional() to avoid leaving opp_table->clk as an error pointer
intel_idle: Avoid using deep idle states during initialization
cpupower: remove conditional return with no effect
cpufreq: intel_pstate: Adjust policy->cur in active mode to policy
cpufreq/amd-pstate: Document missing kernel-doc members
cpufreq/amd-pstate-ut: Add unit test for CPPC Performance Priority
cpufreq/amd-pstate-ut: Add unit test for "dynamic" EPP mode
cpufreq/amd-pstate: Reduce the scope of exported symbols
Documentation/amd-pstate: Update dynamic_epp documentation with new behavior
cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs
cpufreq/amd-pstate: Add dynamic EPP as an "energy_performance_preference" mode
cpufreq/amd-pstate: Extract platform profile to EPP conversion into a helper
cpufreq/amd-pstate: Remove the defensive check for bios_min_perf
cpufreq/amd-pstate: Set min_limit_freq based on bios_min_perf
powercap: intel_rapl_tpmi: Handle PMU registration failure during probe
PM: sleep: Allow disabling DPM watchdog by default
...
|
||
|
Linus Torvalds
|
0d508f1745 |
ACPI support updates for 7.3-rc1
- Eliminate struct acpi_driver whose users have all been converted to
bind to platform devices or auxiliary devices and set the "no power
management" flag for all struct acpi_device objects (Rafael Wysocki)
- Avoid complaints regarding missing _OSC features on platforms where
OSC_CAPABILITIES_MASK_ERROR is set in _OSC error bits even though all
of the requested features are actually acknowledged (Rafael Wysocki)
- Avoid printing confusing _OSC messages for non-PCIe host bridges
without _OSC which is a valid configuration (Kazuma Kondo)
- Use correct region struct for BERT region size check and properly
map BERT and CCEL data to their ACPI tables (Thomas Renninger)
- Add acpi_device_clear_deps(), refactor RISC-V interrupt controller
management code to extract generic code from it into the common ACPI
IRQ code, and enable GICv5 IWB ACPI probe ordering detection on ARM
on top of that (Lorenzo Pieralisi)
- Stop using acpi_device_name() in the PNP core, stop setting
acpi_device_name/class() in the Xen variant of the ACPI PAD
(Processor Aggregator Device) driver, and make the Loongarch
laptop driver stop setting acpi_device_class() (Rafael Wysocki)
- Fix issues related to the desired_perf register access in the ACPI
CPPC library and update it to avoid unnecessary overhead (Christian
Loehle)
- Simplify acpi_get_pci_dev() with the help of a mutex guard, introduce
acpi_dev_get_pci_dev() for code that has a struct ACPI device for
which it wants to get the struct pci_dev pointer of the associated
PCI device, and use it in the ACPI video bus driver (Rafael Wysocki)
- Avoid registering platform devices with resource overlaps in the ACPI
core device enumeration code (Rafael Wysocki)
- Clean up the list of included header files in the NHLT table parser
and validate the table and record lengths in the FPDT parser (Andy
Shevchenko and Pengpeng Hou)
- Unregister the cpufreq notifier on init failure in the ACPI processor
driver (Can Peng)
- Validate MADT IOAPIC entry bounds during IOAPIC hotplug lookup in the
ACPI processor driver (Pengpeng Hou)
- Avoid _REG disconnect on probe deferrals related to GPIO IRQ in the
ACPI EC driver (Zhu Ling)
- Update kerneldoc comments of two structures in the ACPI bus type code
to use correct struct member names to avoid warnings (Randy Dunlap)
- Use a correct function parameter name in kernel-doc in the ACPI fan
driver (Randy Dunlap)
- Update ACPI fan IDs to follow modern style and clean up header file
inclusions in the ACPI fan driver (Andy Shevchenko)
- Use devm_acpi_install_notify_handler() to replace a custom open-coded
devres-based management of an ACPI notify handler in the ACPI fan
driver (Rafael Wysocki)
- Adjust charging status validation check in the ACPI battery driver to
avoid incorrect status reporting (Rafael Wysocki)
- Merge consecutive battery notifications in the ACPI battery driver to
reduce the pressure on STA, _BST and _BIX/_BIF ACPI control methods
and make that driver use kstrtoul() instead of sscanf("%lu\n") (Rong
Zhang)
- Sanitise model_number in the ACPI battery driver by dropping
unprintable characters (Kate Hsuan)
- Remove a node_set() call that is redundant from
acpi_parse_memory_affinity() (Sang-Heon Jeon)
- Prevent kernel-doc warnings by converting 2 function description
comments to kernel-doc format (Randy Dunlap)
- Fix docs build error in the ACPI admin-guide documentation (Randy
Dunlap)
- Replace __get_free_page() with kmalloc() in the code handling ACPI
NVS memory during system suspend/resume (Mike Rapoport)
- Fix card device cleanup on registration failure in the core PNP
code (Yuho Choi)
- Drop an unused assignment of pnp_device_id driver data (Uwe
Kleine-König)
- Clear driver_data on all paths that free acpi_pci_root in
acpi_pci_root_add() (Chen Pei)
- Add locking around evaluation of ACPI control methods in the ACPI TAD
driver to avoid race conditions (Rafael Wysocki)
- Handle repeated SEA error storms in APEI (Junhao He)
- Fix ERST timeout unit conversion in APEI (Nirmoy Das)
- Fix ARM section length accounting after header in the ACPI APEI GHES
driver (TanZheng)
- Mark ghes_in_nmi_spool_from_list() as maybe unused (Rui Qi)
- Introduce helper function acpi_dev_is_video_device() and use it in
the core ACPI device enumeration code, in the ACPI video bus driver,
in the ACPI support code for I2C, in the PCI VGA driver, and in the
x86 platform thinkpad_acpi driver (Andy Shevchenko)
- Add a quirk to use the native backlight on Acer Nitro AN515-46 to the
ACPI video bus driver (Marcos Paulo Medeiros)
- Release PCI device reference after lookup in video_detect_portege_r100()
in the ACPI video bus driver (Yuho Choi)
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Merge tag 'acpi-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support updates from Rafael Wysocki:
"The most significant change here is the elimination of struct
acpi_driver that has no more users in the tree now along with some
documentation related to it, and a follow-up update to set the "no PM"
flag for all ACPI devices that are now only going to play the role of
other devices' "companions" (in analogy with DT nodes).
There is also a significant update of irqchip code related to ACPI
done in order to enable GICv5 IWB ACPI probe ordering detection on
ARM, which involves RISC-V interrupt controller management code
refactoring to extract generic code from it into the common ACPI IRQ
code.
The rest is mostly fixes, including some fallout of the _OSC handling
rework in 7.0, ACPI CPPC library fixes, a workaround for registering
ACPI platform devices with overlapping I/O or memory resources, an
ACPI EC driver fix related to probe deferral on platforms using
HW-reduced ACPI, two ACPI battery driver fixes and a workaround for
handling model numbers with unprintable characters in it, probe error
cleanup and driver unload code path fixes, hardware error reporting
fixes, documentation fixes, and assorted code cleanups all over.
Specifics:
- Eliminate struct acpi_driver whose users have all been converted to
bind to platform devices or auxiliary devices and set the "no power
management" flag for all struct acpi_device objects (Rafael
Wysocki)
- Avoid complaints regarding missing _OSC features on platforms where
OSC_CAPABILITIES_MASK_ERROR is set in _OSC error bits even though
all of the requested features are actually acknowledged (Rafael
Wysocki)
- Avoid printing confusing _OSC messages for non-PCIe host bridges
without _OSC which is a valid configuration (Kazuma Kondo)
- Use correct region struct for BERT region size check and properly
map BERT and CCEL data to their ACPI tables (Thomas Renninger)
- Add acpi_device_clear_deps(), refactor RISC-V interrupt controller
management code to extract generic code from it into the common
ACPI IRQ code, and enable GICv5 IWB ACPI probe ordering detection
on ARM on top of that (Lorenzo Pieralisi)
- Stop using acpi_device_name() in the PNP core, stop setting
acpi_device_name/class() in the Xen variant of the ACPI PAD
(Processor Aggregator Device) driver, and make the Loongarch laptop
driver stop setting acpi_device_class() (Rafael Wysocki)
- Fix issues related to the desired_perf register access in the ACPI
CPPC library and update it to avoid unnecessary overhead (Christian
Loehle)
- Simplify acpi_get_pci_dev() with the help of a mutex guard,
introduce acpi_dev_get_pci_dev() for code that has a struct ACPI
device for which it wants to get the struct pci_dev pointer of the
associated PCI device, and use it in the ACPI video bus driver
(Rafael Wysocki)
- Avoid registering platform devices with resource overlaps in the
ACPI core device enumeration code (Rafael Wysocki)
- Clean up the list of included header files in the NHLT table parser
and validate the table and record lengths in the FPDT parser (Andy
Shevchenko and Pengpeng Hou)
- Unregister the cpufreq notifier on init failure in the ACPI
processor driver (Can Peng)
- Validate MADT IOAPIC entry bounds during IOAPIC hotplug lookup in
the ACPI processor driver (Pengpeng Hou)
- Avoid _REG disconnect on probe deferrals related to GPIO IRQ in the
ACPI EC driver (Zhu Ling)
- Update kerneldoc comments of two structures in the ACPI bus type
code to use correct struct member names to avoid warnings (Randy
Dunlap)
- Use a correct function parameter name in kernel-doc in the ACPI fan
driver (Randy Dunlap)
- Update ACPI fan IDs to follow modern style and clean up header file
inclusions in the ACPI fan driver (Andy Shevchenko)
- Use devm_acpi_install_notify_handler() to replace a custom
open-coded devres-based management of an ACPI notify handler in the
ACPI fan driver (Rafael Wysocki)
- Adjust charging status validation check in the ACPI battery driver
to avoid incorrect status reporting (Rafael Wysocki)
- Merge consecutive battery notifications in the ACPI battery driver
to reduce the pressure on STA, _BST and _BIX/_BIF ACPI control
methods and make that driver use kstrtoul() instead of
sscanf("%lu\n") (Rong Zhang)
- Sanitise model_number in the ACPI battery driver by dropping
unprintable characters (Kate Hsuan)
- Remove a node_set() call that is redundant from
acpi_parse_memory_affinity() (Sang-Heon Jeon)
- Prevent kernel-doc warnings by converting 2 function description
comments to kernel-doc format (Randy Dunlap)
- Fix docs build error in the ACPI admin-guide documentation (Randy
Dunlap)
- Replace __get_free_page() with kmalloc() in the code handling ACPI
NVS memory during system suspend/resume (Mike Rapoport)
- Fix card device cleanup on registration failure in the core PNP
code (Yuho Choi)
- Drop an unused assignment of pnp_device_id driver data (Uwe
Kleine-König)
- Clear driver_data on all paths that free acpi_pci_root in
acpi_pci_root_add() (Chen Pei)
- Add locking around evaluation of ACPI control methods in the ACPI
TAD driver to avoid race conditions (Rafael Wysocki)
- Handle repeated SEA error storms in APEI (Junhao He)
- Fix ERST timeout unit conversion in APEI (Nirmoy Das)
- Fix ARM section length accounting after header in the ACPI APEI
GHES driver (TanZheng)
- Mark ghes_in_nmi_spool_from_list() as maybe unused (Rui Qi)
- Introduce helper function acpi_dev_is_video_device() and use it in
the core ACPI device enumeration code, in the ACPI video bus
driver, in the ACPI support code for I2C, in the PCI VGA driver,
and in the x86 platform thinkpad_acpi driver (Andy Shevchenko)
- Add a quirk to use the native backlight on Acer Nitro AN515-46 to
the ACPI video bus driver (Marcos Paulo Medeiros)
- Release PCI device reference after lookup in
video_detect_portege_r100() in the ACPI video bus driver (Yuho
Choi)"
* tag 'acpi-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (61 commits)
ACPI: scan: Avoid registering platform devices with resource overlaps
ACPI: APEI: Handle repeated SEA error storms
ACPI: APEI: Fix ERST timeout unit conversion
ACPI: APEI: GHES: fix ARM section length accounting after header
ACPI: video: Release PCI device reference after lookup
ACPI: PCI: Avoid misleading _OSC messages for non-PCIe host bridges without _OSC
ACPI: TAD: Add locking around AML evaluations
ACPI: video: force native backlight on Acer Nitro AN515-46
ACPI: CPPC: Evaluate performance-control PCC use once
ACPI: CPPC: Avoid locking standalone full-width registers
ACPI: CPPC: Avoid unnecessary reads for full-width writes
ACPI: CPPC: Stop reading desired_perf in cppc_get_perf()
ACPI: CPPC: Skip desired_perf read in cppc_get_perf()
ACPI: CPPC: Reject desired_perf reads on _CPC revision 4+
ACPI: processor: Unregister cpufreq notifier on init failure
ACPI: bus: Avoid confusing complaints regarding missing _OSC features
ACPI: battery: Adjust charging status validation check
ACPI: pmtmr: Convert to kernel-doc format
ACPI: bus: Use correct struct member names
ACPI: fan: Use correct function parameter name in kernel-doc
...
|
||
|
Linus Torvalds
|
0f23d56f17 |
linux_kselftest-next-7.3-rc1
Fixes zram test failure in kernel_gte() when using dash and a spelling error in ftrace poll test comment. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmqDcTUACgkQCwJExA0N Qxxq6Q/7BCbPLp7csLCB5d37VO7OZ0bxgCu3W7hjQC6Edy0PAW29YuYdFKFqQ4b6 Sw+z4m02uYrHwTNvaKSA6S9QiHHzjUp5ldX5HQ4LUKVADUuNVF6N6U/LxUofmHtp dpE8z4D0ueMj7XkoDwjUgq03brS2YSnL7fsjLcX7bSwGh4BmantGp4Yig1ffL1SG 0EziRDQLAY9Iepr2UZ8kFkW4mTSLSXMNApTzL8FGcv6nUzvm9VM+SJdK1g9f1qph hccbz3s/QWXy1uG2H5Gp4BRrPkvgnabhe7WRnf3PUAD1QPdPfch6UrcpB0hVF4tx x2/grMmuf+rDlDVZwDNv9UbelIvT2Ll9Zt9fRzA6mqGWyjHgIzIxwpCb+dmQfw2q u/Rkzk9Oc1H7+ZalySv44jXTdJj5G+cGaQzT6GbQ+kTnJqT2PtNVQlZdKnPgjBFq 8HsxT8KX1NvW9zDqUFG1lBsbssigL7pKDTM9dIqxR+g3Qs6bgCOo/vaNPemhA1ih ldhNrDrgL9sl2xio23URQS30swe6qtbte2Dd30OA+dLD3PM4tmfeznLp2fdElehD KzXi/PlicRFKQmOa/QPxaLphGaKX99dyWmgzCzFqnCA+i8xotxIFVTFQCyfrMx6O +Qmd9qnJyHyiTEeszvyESH998fByTh4EN9g/XZmb5lMgyxu6gh4= =2Uye -----END PGP SIGNATURE----- Merge tag 'linux_kselftest-next-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest update from Shuah Khan: "Fix zram test failure in kernel_gte() when using dash and a spelling error in ftrace poll test comment" * tag 'linux_kselftest-next-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/zram: fix kernel_gte() for POSIX sh selftests/ftrace: fix spelling error in poll test comment |
||
|
Linus Torvalds
|
fd89b0be55 |
linux_kselftest-kunit-7.3-rc1
Fixes and new kunit and tool, enables new configs, and updates
documentation:
-- kunit: configs: enable GPIO kunit test cases in all_tests.config
-- kunit: string-stream: Replace strlcat() with strscpy() and seq_buf
-- kunit: configs: enable GPIO kunit test cases in all_tests.config
-- Documentation: kunit: Test Kconfig entries shouldn't select other
configs
-- Documentation: kunit: Fix outdated FAQ entries
Adds ability to skip entire test suites and an example test suite that
can be skipped at runtime.
-- kunit,rust: Add ability to skip entire test suites
-- kunit: Add example of test suite that can be skipped at runtime
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Merge tag 'linux_kselftest-kunit-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
"Fixes and new kunit and tools, enable new configs:
- configs: enable GPIO kunit test cases in all_tests.config
- string-stream: Replace strlcat() with strscpy() and seq_buf
- configs: enable GPIO kunit test cases in all_tests.config
Documentation:
- Test config entries shouldn't select other configs
- Fix outdated FAQ entries
Add the ability to skip entire test suites and an example test suite
that can be skipped at runtime:
- Add ability to skip entire test suites
- Add example of test suite that can be skipped at runtime"
* tag 'linux_kselftest-kunit-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: tool: fix _list_tests filtering wrong variable when list has TAP prefix
kunit: configs: enable GPIO kunit test cases in all_tests.config
kunit: string-stream: Replace strlcat() with strscpy() and seq_buf
Documentation: kunit: Fix outdated FAQ entries
Documentation: kunit: Test Kconfig entries shouldn't select other configs
kunit: Add example of test suite that can be skipped at runtime
kunit,rust: Add ability to skip entire test suites
|
||
|
Linus Torvalds
|
fc8c78bce3 |
Crypto library tests for 7.3
- Add comprehensive KUnit test suites for the new AES-GCM and AES-CCM library APIs. - Add FIPS self-tests for all the AES encryption modes. This is needed for parity with the traditional crypto API. - Fix a couple more issues in the IRQ test helper. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCaoEsfhQcZWJpZ2dlcnNA a2VybmVsLm9yZwAKCRDzXCl4vpKOK9LWAQD9ELPYkGqv76fC5x5/Tcm9amo3ZDEX ymx+Q15jmZkgKAD/TWpZJ2eQ9BELHY21VBHwRP8O+agWQUUwxFayZpHE6gw= =ez1k -----END PGP SIGNATURE----- Merge tag 'libcrypto-tests-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux Pull crypto library test updates from Eric Biggers: - Add comprehensive KUnit test suites for the new AES-GCM and AES-CCM library APIs - Add FIPS self-tests for all the AES encryption modes. This is needed for parity with the traditional crypto API - Fix a couple more issues in the IRQ test helper * tag 'libcrypto-tests-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: lib/crypto: aes-cmac: Use __cleanup() instead of memzero_explicit() kunit: irq: Unregister on-stack timer and work from debugobjects kunit: irq: Continue increasing hrtimer interval for longer lib/crypto: tests: Add KUnit test suite for AES-GCM lib/crypto: tests: Add KUnit test suite for AES-CCM lib/crypto: tests: Add aead-test-template.h lib/crypto: tests: Use per-test-case buffers in hash tests lib/crypto: tests: Create test-utils.h lib/crypto: aes: Add FIPS self-tests for GCM and CCM lib/crypto: aes: Add FIPS self-tests for unauthenticated modes lib/crypto: fips: Split fips.h into fips-aes.h and fips-sha.h |
||
|
Linus Torvalds
|
d47db9bf50 |
Crypto library updates for 7.3
Add library APIs for most AES encryption modes that are used in the
kernel (ECB, CBC, CBC-CTS, CTR, XCTR, XTS, GCM, CCM).
These AES modes have many in-kernel users that are currently using the
crypto_skcipher or crypto_aead APIs. These existing APIs are difficult
to use and inefficient. Until now, the lack of proper library support
for these has been the main gap in the crypto library.
This set of changes is the next stage of addressing it:
- Implement the new APIs on top of the existing support for
single-block AES in the library.
- Fully document the new APIs.
- Migrate the only user of the old AES-GCM library API to the new,
more flexible API; then remove the old API and its implementation.
- Wire up the new APIs to the traditional crypto API by adding
crypto_skcipher and crypto_aead algorithms.
This makes the new APIs be covered by the traditional crypto API's
self-tests. It also makes them be already used for real on systems
that don't have architecture-optimized code for these modes.
But most importantly, this is a prerequisite for migrating the
architecture-optimized code for these AES modes (i.e.
arch/*/crypto/aes*) into the library, which as usual will
eliminate a lot of redundant "glue" code.
Note that unlike some of the other algorithms that have been migrated
to the library, e.g. SHA-512, for these AES modes there was too much
to get done in one cycle. Nor did it make sense to handle these modes
one at a time, because they tend to be coupled together or depend on
each other, especially in the architecture-optimized AES code.
Thus, most of the benefits (reductions in lines of code, performance
improvements, etc.) will follow in later cycles when
architecture-optimized code is migrated into the library and users of
crypto_skcipher and crypto_aead are updated to use the new APIs.
The design of the new APIs was informed by writing proof-of-concept
patches for many kernel subsystems currently accessing these same
algorithms via crypto_skcipher or crypto_aead (patches 18-33 of
https://lore.kernel.org/r/20260707053503.209874-1-ebiggers@kernel.org/).
While those patches will be resent for real later, the total diffstat
for them was negative 1905 lines. So clearly the new APIs are quite a
bit easier to use and align better with what users actually need.
Besides the new AES encryption APIs, there are also a few changes for
improved AES-CMAC key and context zeroization.
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Merge tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library updates from Eric Biggers:
"Add library APIs for most AES encryption modes that are used in the
kernel (ECB, CBC, CBC-CTS, CTR, XCTR, XTS, GCM, CCM).
These AES modes have many in-kernel users that are currently using the
crypto_skcipher or crypto_aead APIs. These existing APIs are difficult
to use and inefficient. Until now, the lack of proper library support
for these has been the main gap in the crypto library.
This set of changes is the next stage of addressing it:
- Implement the new APIs on top of the existing support for
single-block AES in the library.
- Fully document the new APIs.
- Migrate the only user of the old AES-GCM library API to the new,
more flexible API; then remove the old API and its implementation.
- Wire up the new APIs to the traditional crypto API by adding
crypto_skcipher and crypto_aead algorithms.
This makes the new APIs be covered by the traditional crypto API's
self-tests. It also makes them be already used for real on systems
that don't have architecture-optimized code for these modes.
But most importantly, this is a prerequisite for migrating the
architecture-optimized code for these AES modes (i.e.
arch/*/crypto/aes*) into the library, which as usual will eliminate
a lot of redundant "glue" code.
Note that unlike some of the other algorithms that have been migrated
to the library, e.g. SHA-512, for these AES modes there was too much
to get done in one cycle. Nor did it make sense to handle these modes
one at a time, because they tend to be coupled together or depend on
each other, especially in the architecture-optimized AES code.
Thus, most of the benefits (reductions in lines of code, performance
improvements, etc.) will follow in later cycles when
architecture-optimized code is migrated into the library and users of
crypto_skcipher and crypto_aead are updated to use the new APIs.
The design of the new APIs was informed by writing proof-of-concept
patches for many kernel subsystems currently accessing these same
algorithms via crypto_skcipher or crypto_aead (patches 18-33 of
https://lore.kernel.org/r/20260707053503.209874-1-ebiggers@kernel.org/).
While those patches will be resent for real later, the total diffstat
for them was negative 1905 lines. So clearly the new APIs are quite a
bit easier to use and align better with what users actually need.
Besides the new AES encryption APIs, there are also a few changes for
improved AES-CMAC key and context zeroization"
* tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
mac80211: fils_aead: Use __cleanup() instead of memzero_explicit()
Bluetooth: SMP: clear the aes_cmac_key when done
smb: clear the aes_cmac_key and aes_cmac_ctx when done
lib/crypto: aes-cmac: Add zeroization functions
lib/crypto: aesgcm: Remove old AES-GCM library
x86/sev: Remove obsolete virtual address check
x86/sev: Use new AES-GCM library
crypto: aes - Add CCM support using library
crypto: aes - Add GCM support using library
crypto: aes - Add XTS support using library
crypto: aes - Add CTR and XCTR support using library
crypto: aes - Add CBC and CBC-CTS support using library
crypto: aes - Add ECB support using library
lib/crypto: aes: Add CCM support
lib/crypto: aes: Add GCM support
lib/crypto: aes: Add XTS support
lib/crypto: aes: Add CTR and XCTR support
lib/crypto: aes: Add CBC and CBC-CTS support
lib/crypto: aes: Add ECB support
crypto: xts - Split out __xts_verify_key() helper
|
||
|
Linus Torvalds
|
1d7443e4dc |
fscrypt updates for 7.3
The main change this cycle is a significant simplification that's been
overdue for a while now: standardizing on a single file contents
encryption implementation in ext4 and f2fs, instead of having two.
Specifically, the original filesystem-layer file contents encryption
implementation is removed, and the blk-crypto implementation is now
used unconditionally. blk-crypto delegates either to inline crypto
hardware or to the CPU via blk-crypto-fallback. The latter is
functionally equivalent to the original filesystem-layer code.
The blk-crypto implementation already existed, but previously it was
used only when the filesystem was mounted with "-o inlinecrypt". Now,
"-o inlinecrypt" just selects whether inline crypto hardware is used.
To allow maintaining that user control over hardware use, the
blk-crypto API is extended with a new flag BLK_CRYPTO_CFG_ALLOW_HW.
Overall, this removes quite a bit of redundant code from ext4, f2fs,
and fs/crypto/. It should make things easier for ongoing filesystem
efforts such as iomap support, large folios, and btrfs encryption.
(btrfs had already been planning to use blk-crypto exclusively.)
There are two small behavior changes of note:
- Direct I/O now works on encrypted files even without
"-o inlinecrypt", rather than falling back to buffered I/O. This is
effectively a bugfix, though I'll continue to keep an eye out for
any user that may have been depending on the buffered I/O fallback.
- IV_INO_LBLK_32 policies are no longer supported in certain cases
that didn't make sense and have no known uses.
This has been in linux-next since July 22 with no reported issues.
All encryption xfstests pass on ext4 and f2fs. As usual I've also been
using it on a system with an fscrypt-encrypted home directory. Of
course, the blk-crypto code paths also aren't new and were already
being used on many systems via the inlinecrypt mount option.
In addition to the main change described above, there are a few other
cleanups such as using lock guards for mutexes, improving
documentation, and removing a workaround for outdated gcc versions.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux
Pull fscrypt updates from Eric Biggers:
"The main change this cycle is a significant simplification that's been
overdue for a while now: standardizing on a single file contents
encryption implementation in ext4 and f2fs, instead of having two.
Specifically, the original filesystem-layer file contents encryption
implementation is removed, and the blk-crypto implementation is now
used unconditionally. blk-crypto delegates either to inline crypto
hardware or to the CPU via blk-crypto-fallback. The latter is
functionally equivalent to the original filesystem-layer code.
The blk-crypto implementation already existed, but previously it was
used only when the filesystem was mounted with "-o inlinecrypt". Now,
"-o inlinecrypt" just selects whether inline crypto hardware is used.
To allow maintaining that user control over hardware use, the
blk-crypto API is extended with a new flag BLK_CRYPTO_CFG_ALLOW_HW.
Overall, this removes quite a bit of redundant code from ext4, f2fs,
and fs/crypto/. It should make things easier for ongoing filesystem
efforts such as iomap support, large folios, and btrfs encryption
(btrfs had already been planning to use blk-crypto exclusively.)
There are two small behavior changes of note:
- Direct I/O now works on encrypted files even without "-o inlinecrypt",
rather than falling back to buffered I/O. This is effectively a
bugfix, though I'll continue to keep an eye out for any user that
may have been depending on the buffered I/O fallback.
- IV_INO_LBLK_32 policies are no longer supported in certain cases
that didn't make sense and have no known uses.
This has been in linux-next since July 22 with no reported issues. All
encryption xfstests pass on ext4 and f2fs. As usual I've also been
using it on a system with an fscrypt-encrypted home directory. Of
course, the blk-crypto code paths also aren't new and were already
being used on many systems via the inlinecrypt mount option.
In addition to the main change described above, there are a few other
cleanups such as using lock guards for mutexes, improving
documentation, and removing a workaround for outdated gcc versions"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux: (29 commits)
blk-crypto: Update docs for blk-crypto-fallback motivation
blk-crypto: Remove unused function blk_crypto_config_supported()
fscrypt: Update docs for data path
fscrypt: Remove unused function fscrypt_finalize_bounce_page()
f2fs: Update outdated comment in f2fs_write_begin()
fs: Update outdated comment for SB_INLINECRYPT
fscrypt: Update encryption policy version docs
fscrypt: Replace some variable-size memsets with fixed-size
fscrypt: Add safety checks to non-block-based en/decryption
fscrypt: Merge bio.c and inline_crypt.c into block.c
fscrypt: Remove unused functions and workqueue
fscrypt: Remove fs-layer zeroout code
fscrypt: Remove fscrypt_dio_supported()
fscrypt: Replace calls to fscrypt_inode_uses_inline_crypto()
fs/buffer: Remove fs-layer decryption code
f2fs: Remove fs-layer file contents en/decryption code
ext4: Further de-generalize the bio postprocessing code
ext4: Make ext4_bio_write_folio() return void
ext4: Remove fs-layer file contents en/decryption code
Documentation: fscrypt: Update docs for inlinecrypt
...
|
||
|
Linus Torvalds
|
63c070cba0 |
nilfs2 updates for v7.3
- nilfs2: standardize the inode number type to u64
- nilfs2: enhance btree node keys check
- nilfs2: suppress false positive WARN_ONs for sufile after an FS error
- nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch
- nilfs2: prevent out-of-bounds read in super root block parsing
- nilfs2: fix infinite loop in nilfs_clean_segments()
- nilfs2: fix slab-out-of-bounds in nilfs_direct_propagate after truncation
- Documentation: fix grammar in description of nilfs2 recovery code
- nilfs2: handle corrupted checkpoint count gracefully during deletion
- nilfs2: reject invalid block index in GC ioctl
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Merge tag 'nilfs2-v7.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/nilfs2
Pull nilfs2 updates from Viacheslav Dubeyko:
"This contains fixes of syzbot reported issue and various fixes in
NILFS2 functionality:
- Reject super-root inode sizes whose computed on-disk footprint
exceeds the filesystem block size (David Lee)
- Replace WARN_ON() in nilfs_cpfile_delete_checkpoints() with
returning -EIO and reporting a filesystem error via nilfs_error()
in the case of corrupted checkpoint count on the storage medium
(Igor Putko)
- Fixed a potential infinite loop in nilfs_clean_segments() reported
by syzbot (Joshua Crofts)
In nilfs_clean_segments(), if err is non-zero, logic logs the error
and sleeps but doesn't abort when it encounters a terminal error
like -EROFS. This causes the thread to loop forever.
Fix this by breaking out of the loop if nilfs_segctor_construct()
returns -EROFS.
- Fix small grammar mistake in the description for nilfs2 recovery
code (Manoj K M)
- Multiple fixes by Ryusuke Konishi:
- fix the list corruption issue recently detected by syzbot, that
can occur when out-of-range values are intentionally passed to
certain GC ioctl parameters
- fix a flaw in the original B-tree implementation related to
truncation and resolves the reported out-of-bounds memory
access issue
- fix an issue reported by syzbot where a kernel BUG could be
triggered depending on timing after filesystem corruption is
detected
- fix an issue where a WARN_ON check is triggered by sufile
functions within the log writer after the filesystem degrades
to read-only mode
- Check for sorted keys when reading btree node blocks into the cache
(Wang Jianjian)
This prevents unexpected errors during the block number assignment
phase in log writing caused by key order inconsistencies, as well
as the kernel warnings reported by syzbot"
* tag 'nilfs2-v7.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/nilfs2:
nilfs2: standardize the inode number type to u64
nilfs2: enhance btree node keys check
nilfs2: suppress false positive WARN_ONs for sufile after an FS error
nilfs2: fix BUG in nilfs_copy_dirty_pages() on dirty state mismatch
nilfs2: prevent out-of-bounds read in super root block parsing
nilfs2: fix infinite loop in nilfs_clean_segments()
nilfs2: fix slab-out-of-bounds in nilfs_direct_propagate after truncation
Documentation: fix grammar in description of nilfs2 recovery code
nilfs2: handle corrupted checkpoint count gracefully during deletion
nilfs2: reject invalid block index in GC ioctl
|
||
|
Linus Torvalds
|
0de672c7e1 |
hfs/hfsplus updates for v7.3
- hfsplus: validate extent record length before writing it back
- hfsplus: validate B-tree record offset table
- hfs: rework MDB locking scheme
- fs: hfsplus: remove redundant NULL check before kfree()
- hfs: port HFS+ b-tree bitmap corruption check
- hfs: don't re-dirty MDB buffers after a write failure
- hfsplus: fix error code when writing beyond volume capacity
- hfs: fix error code when writing beyond volume capacity
- hfsplus: validate thread record before delete key rebuild
- hfs: validate catalog CNIDs before instantiating inodes
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Merge tag 'hfs-v7.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs
Pull HFS updates from Viacheslav Dubeyko:
"This contains several fixes in HFS/HFS+ of syzbot reported issues and
HFS/HFS+ fixes of xfstests failures.
- b-tree bitmap corruption check (Aditya Prakash Srivastava)
During b-tree open (hfs_btree_open()), the code verifies that the
allocation map bit for the tree header (node 0) is set. If not, it
indicates a corrupted map record/bitmap and mounts the volume as
read-only (SB_RDONLY) to prevent further damage.
- Validate catalog CNIDs before instantiating inodes (David
Maximiliano Hermitte)
The hfs_cat_find_brec() first resolves a catalog thread record by
CNID and then looks up the corresponding catalog record by
parent/name. On a corrupted filesystem image, the second lookup may
find a record whose CNID does not match the CNID that was
requested. Finally, corrupted catalog records are rejected.
- Validate B-tree record offset table (Jiaming Zhang)
A crafted HFS+ image can contain a corrupted B-tree node. The node
descriptor may contain a record count that does not fit in the
node, and record offsets may be unordered, unaligned, outside the
node, or point into the offset table itself. Validate num_recs
against the node size before walking the record offset table.
Reject record ranges that are unordered, unaligned, outside the
node, or overlapping the offset table. Reject invalid record
indexes before reading their offset entries, and avoid decrementing
an already-zero leaf_count.
- Refactoring of hfsplus_delete_cat() logic (Kyle Zeng).
The hfsplus_delete_cat() is called with str == NULL when the last
open reference to an unlinked HFS+ hardlink backing inode is
closed. In that case, the function finds the catalog thread by CNID
and rebuilds the catalog key from thread.nodeName. A corrupted
image can therefore provide an oversized thread name length and
make hfs_bnode_read() write past the catalog search-key allocation.
Read the CNID record through hfsplus_brec_read_cat(), which bounds
the record read to sizeof(hfsplus_cat_entry) and verifies that a
thread record's size exactly matches nodeName.length.
- Cleanup in KUnit test (Mohammad Shahid)
The kfree() safely handles NULL pointers, so the explicit NULL
check in free_mock_str_env() before calling kfree() is unnecessary.
The rest contain fixes of generic/564 xfstests' test-case failure
for the case of HFS+ file system, syzbot reported issue in
hfs_mdb_commit() and hfs_mdb_close() methods of HFS file system,
and reworking the MDB locking scheme in HFS file system"
* tag 'hfs-v7.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs:
hfsplus: validate extent record length before writing it back
hfsplus: validate B-tree record offset table
hfs: rework MDB locking scheme
fs: hfsplus: remove redundant NULL check before kfree()
hfs: port HFS+ b-tree bitmap corruption check
hfs: don't re-dirty MDB buffers after a write failure
hfsplus: fix error code when writing beyond volume capacity
hfs: fix error code when writing beyond volume capacity
hfsplus: validate thread record before delete key rebuild
hfs: validate catalog CNIDs before instantiating inodes
|
||
|
Linus Torvalds
|
4bb187d6f3 |
gfs2 changes
- Don't cache unreferenced glocks: when a glock is no longer referenced (for example, because the inode it protects is evicted), it is now released as soon as possible instead of leaving it around until memory pressure or an unmount forces it out. For some workloads, this saves a lot of memory and speeds up unmounts significantly. - Harden gfs2_glock_hold() by making sure the caller holds a reference and fix a related race in checking for the liveliness of glocks between gdlm_bast() and gfs2_glock_cb(). -----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEEJZs3krPW0xkhLMTc1b+f6wMTZToFAmqC7e8UHGFncnVlbmJh QHJlZGhhdC5jb20ACgkQ1b+f6wMTZTql+A/+OLEPtizpJ6k/uqk7+I63D0xYakK5 GMWCPPf5C9fernW57cF/p0TfRRDUKqKOrb+mKkJuPBMSfEZIldKOmYQx6U/kvXIF 6hdtRfAvVBjIs1aY+P/dliRXfzvO1HVamPsu7dx7NdTnozJz2tv/spNQ2cZV5tQD 2t6VovUzje+U7x7Qsz3EhN/po1aNBlXlzWtvF/r7uwAtiYfXaknJkr8cjo202w0Y fAQ5KRZA5EiN1Fc1d6V7ehYyzv31osmaQA9Bsf7NVlpnBPG1LyibYWzFF4zg1pDo 9JU4tcD9IpIALwYkGFFcG1qutjq0E2QKqeYgaIau94ezQnTY+q1zQQDiixyoHxHu 2AHMIcbUzEKHib+pYWtSy5GLgeTI59+hxFe9tOERhjHGDW8fYbqQTV969S84bYTm +Ar04VsbToMdjYSh5I+FPLQbKwfetKjDIlKSYeZzMOfGEqpJtoU9lB8WbvP/2LcQ c5hJfJcV7JWW9j4YZZIZuwzZv93CstBvFubKpktMw0x9utGc6a7M+f9eADYnd3JH l7yb+dyjUeYeIqEbALsfnxicuoiYfVKNVxh/zdz4TJEYDH1l/CyBIirLsSAVTAJl ruCT13akq5e+EXGOztcIXyU39l/ajJA0v58n9gzEzMakTwpyCTwx7WcooILf1aem P1QRnAoud8FoAYk= =U72j -----END PGP SIGNATURE----- Merge tag 'gfs2-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 Pull gfs2 updates from Andreas Gruenbacher: - Don't cache unreferenced glocks: when a glock is no longer referenced (for example, because the inode it protects is evicted), it is now released as soon as possible instead of leaving it around until memory pressure or an unmount forces it out. For some workloads, this saves a lot of memory and speeds up unmounts significantly. - Harden gfs2_glock_hold() by making sure the caller holds a reference and fix a related race in checking for the liveliness of glocks between gdlm_bast() and gfs2_glock_cb(). * tag 'gfs2-for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: gfs2: harden gfs2_glock_hold gfs2: Remove the glock lru list and shrinker gfs2: Skip dlm unlocks earlier gfs2: Don't cache unreferenced glocks gfs2: Enable automatic glock hash table shrinking |
||
|
Linus Torvalds
|
cf07e82984 |
xfs: new patches for Linux 7.3
Signed-off-by: Carlos Maiolino <cem@kernel.org> -----BEGIN PGP SIGNATURE----- iJUEABMJAB0WIQSmtYVZ/MfVMGUq1GNcsMJ8RxYuYwUCaoK4XwAKCRBcsMJ8RxYu Y13uAX9yjOxdb5XA8FSEqu18n4oLn4XCC0DIIEzraKqdmL5X2jWzkwQsAEtGY75S QhDAqtcBgN1vjQyHfhQQsnFPk2M+0qEUevr53VNGF382UNtYISws2uoHWfV+gJ/M qkHyJJ9oPg== =IKKx -----END PGP SIGNATURE----- Merge tag 'xfs-merge-7.3' of git://git.kernel.org:/pub/scm/fs/xfs/xfs-linux Pull xfs updates from Carlos Maiolino: "There are no big standing out features on this window, so this mostly consists on bug fixes and code refactoring. The only user visible change that stands out is the support for FALLOC_FL_WRITE_ZEROES added to this" * tag 'xfs-merge-7.3' of git://git.kernel.org:/pub/scm/fs/xfs/xfs-linux: (23 commits) xfs: validate attr entry pointer before field access xfs: check split_sectors validity before bio_split call xfs: use file target for post-log fsync fallback flush xfs: restore nofs context unconditionally in xfs_trans_roll xfs: add lockless xfs_buf_readahead_map fast path xfs: move buffer locking out of xfs_find_get_buf xfs: merge xfs_buf_reverify into xfs_buf_read_map xfs: use goto based error unwinding in xfs_buf_read_map xfs: don't reverify buffers in xfs_buf_readahead_map xfs: use WRITE_ONCE to update b_flags xfs: hide b_flags manipulation from code outside of xfs_buf.c xfs: remove _XBF_LOGRECOVERY xfs: remove spurious XBF_DONE clearing on readahead validation failure xfs: split out a lower-level xfs_buf_get_map helper from xfs_find_get_buf xfs: consolidate buffer locking in xfs_buf_get_map xfs: don't get a pag reference in xfs_buf_get_map xfs: use kmalloc_objs() instead of kmalloc() in xfs_da_grow_inode_int xfs: mark internal metadir file creation helpers static xfs: create rtgroup metadir inodes using xfs_metadir_create_file xfs: create quota metadir inodes using xfs_metadir_create_file ... |
||
|
Linus Torvalds
|
ff68e5f557 |
vfs-7.3-rc1.sync
Please consider pulling these changes from the signed vfs-7.3-rc1.sync tag.
Thanks!
Christian
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Merge tag 'vfs-7.3-rc1.sync' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs writeback updates from Christian Brauner:
"This makes sync_inode_metadata() and writeback_single_inode() persist
not only the inode but all metadata associated with it.
A new .sync_inode_metadata superblock operation is called from
__writeback_single_inode(). Alongside it a new I_METADATA_WRITEBACK
state flag is added.
Filesystems no longer need their own mmb_fsync() implementations and
can just use simple_fsync(). All metadata is now written for IS_SYNC
and IS_DIRSYNC inodes. Races where several fsyncs raced and mmb_sync()
could return before all buffers were really persisted are fixed since
I_SYNC now serializes properly.
The I_METADATA_WRITEBACK scheme also fixes the case where a
WB_SYNC_NONE writeback landing between write(2) and fsync(2) left
fsync(2) failing to persist the inode. That problem is not specific to
filesystems using the generic metadata bh tracking, and the ones that
do not are left alone.
ext2, udf, bfs, minix, fat and ext4 in nojournal mode have their data
integrity writeout fixed and are converted. affs drops metadata bh
tracking and mmb_fsync() is removed.
A few other fixes came out of this:
- a UAF in mark_buffer_write_io_error()
- missed inode writeback when racing with __writeback_single_inode()
- ext4 allocating the mapping_metadata_bhs struct on demand
- three fat fixes: a lost inode update in do_msdos_rename() with
DIRSYNC, inode buffer write errors not propagating out of
fat_sync_inode_metadata() and directory entries not being
persisted on fsync(2) of the root directory"
* tag 'vfs-7.3-rc1.sync' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (24 commits)
writeback: Export __inode_attach_wb()
fat: Fix persisting directory entries on fsync(2) of the root directory
fat: Propagate inode buffer write errors from fat_sync_inode_metadata()
fat: Fix lost inode update in do_msdos_rename() with DIRSYNC
vfs: Remove mmb_fsync()
fat: Replace fat_sync_inode() with sync_inode_metadata()
fat: Fix missed inode writeback during fsync(2)
ext4: Fix data integrity writeout issues in nojournal mode
minix: Fix data integrity writeout issues
bfs: Fix data integrity writeout issues
udf: Fold udf_update_inode() into udf_write_inode()
udf: Use sync_inode_metadata() in udf_evict_inode()
udf: Drop udf_sync_inode()
udf: Use sync_inode_metadata() to writeout IS_SYNC inode
udf: Fix data integrity writeout issues
ext2: Fix data integrity writeout issues
ext2: Avoid unnecessary inode buffer writeback for sync(2)
ext2: Drop __ext2_write_inode()
ext2: Fix lost inode updates for IS_SYNC inodes
fs: Provide way for filesystem to wait for metadata writeback
...
|
||
|
Linus Torvalds
|
1781f0b3d7 |
vfs-7.3-rc1.super
Please consider pulling these changes from the signed vfs-7.3-rc1.super tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCan7RJQAKCRCRxhvAZXjc oroBAP40BufiChnC6I9Ev79QWF+Pfri1r/3AR4xXRG4HkXQaYQD/YE+Ria3+Bt35 +tWU66cYlQ/+9LfU8DJ3KXm7jPUBiQA= =hXLH -----END PGP SIGNATURE----- Merge tag 'vfs-7.3-rc1.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs superblock updates from Christian Brauner: - Make it possible to share a block device between multiple filesystems. erofs can mount read-only blob devices shared between many superblocks, but because we only tracked a single superblock a freeze, thaw, removal or sync on such a device was never propagated to all the superblocks using it, and there was no way to find them. Add an efficient table to lookup all superblocks using a given block device. - A bunch of pre-existing fixes fell out of this work: A block-device freeze racing a btrfs device change could leave the whole filesystem stuck frozen. A bdev_freeze() issued by "dmsetup suspend" or an LVM snapshot resolves that holder to freeze the filesystem. and bdev_thaw() resolves it again to thaw. A freeze landing while btrfs is adding, removing or replacing a device freezes the filesystem. The membership change then drops that link. So the matching thaw could no longer find the superblock. Forbid freezing a device for the duration of a membership change, modelled on deny_write_access()/allow_write_access(). * tag 'vfs-7.3-rc1.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (24 commits) super: fix dying superblock warning messages block: reject block device inodes with i_rdev == 0 in lookup_bdev() selftests/filesystems: add ustat() coverage fs: look up the superblock via the device table in user_get_super() super: make fs_holder_ops private f2fs: open via dedicated fs bdev helpers erofs: open via dedicated fs bdev helpers fs: tolerate per-superblock freeze errors on shared devices fs: look up superblocks via the device table in fs_holder_ops ext4: open via dedicated fs bdev helpers btrfs: open via dedicated fs bdev helpers xfs: port to fs_bdev_file_open_by_path() fs: add dedicated block device open helpers for filesystems fs: maintain a global device-to-superblock table ocfs2: don't reset s_dev on dismount ext4: use anonymous devices for KUnit test superblocks fs, block: move blk_mode_t and fop_flags_t into <linux/types.h> super: take lock after last reference count super: convert s_count to refcount_t s_passive btrfs: deny freezing devices undergoing a replace ... |
||
|
Linus Torvalds
|
aaed66fadb |
vfs-7.3-rc1.ovl
Please consider pulling these changes from the signed vfs-7.3-rc1.ovl tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCan7RJQAKCRCRxhvAZXjc ok/9AQDpiRYIoLwnUa7URD92AQXBRQeSYFqicAqDqP3NpCUMwQD+IcmA1EtkfmaG ROdhiUJWe8TV5Ci1qNPXzoy1XRVhNQU= =xOj4 -----END PGP SIGNATURE----- Merge tag 'vfs-7.3-rc1.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull overlayfs updates from Christian Brauner: "This lets the merged overlayfs mount itself be idmapped through mount_setattr(MOUNT_ATTR_IDMAP), in addition to the already supported idmapped lower and upper layers. The same overlay tree can then be exposed under a different ownership view. Overlayfs already normalizes every underlying id through the relevant layer idmap when ovl_copyattr() copies attributes into the overlay inode. So the overlay inode's i_uid and i_gid are overlay-final ids. The overlay mount idmap composes on top of that and is applied at the overlay-inode boundary only while the underlying layers keep being accessed with the mounter's credentials through their own (possibly idmapped) mounts. So this only changes how the caller sees the overlay inode and never widens the mounter's access to the layers. The second, mounter-credential check in ovl_permission() against the real inode stays on the layer idmap. Most paths need no change because the VFS applies the mount idmap to the overlay inode before overlayfs runs or after it returns at the syscall boundary. Overlayfs only has to change where it bypasses the generic path. This also included is a fix for a double end_creating() on the overlayfs casefold-mismatch path" * tag 'vfs-7.3-rc1.ovl' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: ovl: fix double end_creating() on the casefold-mismatch path ovl: document security.capability idmapping on the xattr forward paths selftests/filesystems/overlayfs: test idmapped overlay mounts selftests/filesystems/overlayfs: fix set_layers_via_fds link error docs: document idmapped overlay mounts ovl: allow idmapping overlay mounts ovl: handle idmapped mounts in ovl_set_acl() ovl: handle idmapped mounts in ovl_getattr() ovl: handle idmapped mounts in ovl_setattr() ovl: handle idmapped mounts in ovl_permission() ovl: handle idmapped mounts in ovl_create_object() and ovl_tmpfile() |
||
|
Linus Torvalds
|
55668d04e3 |
vfs-7.3-rc1.netfs
Please consider pulling these changes from the signed vfs-7.3-rc1.netfs tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCan7RJQAKCRCRxhvAZXjc oq5VAPwLHEyDBJUM581Nsj9O7NnkSRhffjp4//Cp2jHRYkaR4wEAiceqF+rONVWK VYCyLEDSU5TPP9EeON95qSzq0khbswo= =kcGi -----END PGP SIGNATURE----- Merge tag 'vfs-7.3-rc1.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull cachefiles ondemand removal from Christian Brauner: "This sunsets cachefiles ondemand mode. It was an effort to make fscache usable as a kernel cache for lazy pulling. EROFS over fscache was its only in-tree user. fscache has since become netfslib-oriented while EROFS never acts as a network filesystem and EROFS over fscache has been removed. So this cleans up the netfs, fscache and cachefiles side as well" * tag 'vfs-7.3-rc1.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: cachefiles,netfs: sunset ondemand mode |
||
|
Linus Torvalds
|
c3d6d6dde3 |
vfs-7.3-rc1.mount
Please consider pulling these changes from the signed vfs-7.3-rc1.mount tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCan7RJQAKCRCRxhvAZXjc omDqAP9BOedYydQiJhviQggsX5IFfDfCa1semGokHPOsW9WKHwD+PJBHVLvvP/uU TmzBuX9zkDzPGEDcT7arcXjzKu8gLgY= =d1MF -----END PGP SIGNATURE----- Merge tag 'vfs-7.3-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull mount updates from Christian Brauner: - Make the legacy mount API notify pollers of propagation changes. Changing propagation via change_mnt_propagation() or with MOVE_MOUNT_SET_GROUP update the propagation relationship of the target mount. But unlike mount_setattr() neither path touched the affected mount namespace. So pollers of /proc/<pid>/mountinfo were never woken. - Also remove a redundant panic() in mnt_init() * tag 'vfs-7.3-rc1.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: mount: remove redundant panic() in mnt_init() fs/namespace: notify pollers of legacy propagation changes |
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Linus Torvalds
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1c3e8cef79 |
vfs-7.3-rc1.misc
Please consider pulling these changes from the signed vfs-7.3-rc1.misc tag.
Thanks!
Christian
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Merge tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Bigger cleanups:
- The lockref dead-count handling is tidied up.
The open-coded check for a count below zero as the dead marker
relies on information the caller should not have.
- make put_mnt_ns() leave mounts connected. Destroying a mount
namespace disconnected its mounts from their mount points. So a
file descriptor still open on the parent of a mount point could be
used to peek under it.
Locked mounts were already kept connected to prevent exactly that.
But a mount is only locked when its tree is copied across a user
namespace boundary. So a mount namespace set up by a privileged
component had no locked mounts and its mounts were disconnected.
Passing UMOUNT_CONNECTED keeps every mount connected and prevents
that bug.
- vfs_prepare_mode() passes S_IFDIR for directories. I meant to fix
that ago but didn't get to it. So now someone finally did it.
This kills the exception where the mode could be 0 when a directory
was created whereas every other creation operation passed it
explicitly already.
- move long delayed work for ufs, jffs2, hfsplus, hfs and affs from
the per-cpu system_long_wq to the new unbound system_dfl_long_wq.
None of that work relies on per-cpu state and the work item is
enqueued with queue_delayed_work() whose timer is global anyway. So
it may as well benefit from scheduler task placement.
Smaller fixes and cleanups:
- unlock_buffer() and journal_end_buffer_io_sync() use
clear_and_wake_up_bit()
- the pipe page pools are unified into a single per-pipe pool and the
extra wake_up(rd_wait) is limited to EPOLLET consumers
- eventpoll now computes its timer slack lazily in ep_poll()
- shrink_dcache_for_umount() keeps making progress on busy roots
- excess xarray nodes are freed in clear_inode()
- romfs detects hard link cycles
- the user path of nested backing files is fixed
- pidfd holds exec_update_lock around the namespace ioctl
- non-memcg-aware nr_cached_objects is skipped during memcg slab
shrink
- iomap_write_iter() always returns status
- mangle_path() is renamed to seq_mangle_path()
- inode timestamp accessors are annotated
- new regression test for pipe->poll_usage.
- a few documentation, kernel-doc and selftest fixes"
* tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (67 commits)
selftests/namespaces: Fix racy pipe handshake in timens and pidns_separate
selftests/epoll: add a regression test for pipe->poll_usage
pipe: only enable the extra wake_up(rd_wait) for EPOLLET consumers
pidfd: hold exec_update_lock around namespace ioctl
fs: fix user path of nested backing files
fs: remove stale inode_insert5() kernel-doc parameter
fs: fix switch/case indentation in sysfs() syscall
fs: document semantics of kstat::{uid,gid} fields
dcache: keep shrink_dcache_for_umount() making progress on busy roots
seq_file: rename mangle_path to seq_mangle_path
nstree: add/fix struct ns_id_req kernel-doc member fields
dcache: use lockref routines for dead count checks
lockref: tidy up dead count handling
initramfs: fix typo in reserve_initrd_mem comment
fs/pipe: unify the page pools into a single per-pipe pool
fs: annotate inode timestamp accessors
eventpoll: compute timer slack lazily in ep_poll()
selftests/filesystems: add mntns cleanup test
put_mnt_ns(): leave mounts connected
affs: Move long delayed work on system_dfl_long_wq
...
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Linus Torvalds
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ab5ed08f2d |
vfs-7.3-rc1.lookup
Please consider pulling these changes from the signed vfs-7.3-rc1.lookup tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCan7RJQAKCRCRxhvAZXjc ouj6AQCnBHstCt5RRimywLYU+eTmdKe203zRQYxXpwlYOAzm7wEAm1mIC7/Of6bD jkiJilcPDcyYcJsqwBw/Vcz5HR+v8wo= =TX6K -----END PGP SIGNATURE----- Merge tag 'vfs-7.3-rc1.lookup' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs lookup updates from Christian Brauner: "This refactors lookup_open() and adds vfs_lookup_open() for nfsd. mnt_want_write() and parent locking are moved into lookup_open() itself. audit_inode_child() is also now called in lookup_open() on failure. That is the calling convention in vfs_create() and vfs_mkdir(), but lookup_open() made no such call when atomic_open() should have created a file and did not. And neither did the regular ->create() path fwiw. This also contains work to remove the unneeded excl argument from the ->create() inode op" * tag 'vfs-7.3-rc1.lookup' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs/namei.c: fix coding style in atomic_open() and lookup_open() fs/namei.c: fix kerneldoc of atomic_open() and vfs_lookup_open() fs/namei.c: update stale comments in lookup_open() Remove excl arg to ->create inode_operation fs/namei.c: update kerneldoc of atomic_open() vfs: call audit_inode_child() in lookup_open() on failure vfs: move create error && negative dentry case in lookup_open() up VFS: add vfs_lookup_open() for nfsd VFS: move delegated_inode retry loop into lookup_open() VFS: move mnt_want_write() and locking into lookup_open() |
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Linus Torvalds
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fff0150b02 |
vfs-7.3-rc1.kthread
Please consider pulling these changes from the signed vfs-7.3-rc1.kthread tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCan7RJQAKCRCRxhvAZXjc ohHuAQCFeGhxqsb44KhuJaWXewiXbefr6eg31lXmxgSfg0DILAD/Tw/WmpiUbX5M H+/jh6NmLKnQ/ADjlWFRy3R1K1Il3w4= =jwPP -----END PGP SIGNATURE----- Merge tag 'vfs-7.3-rc1.kthread' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull kthread vfs updates from Christian Brauner: "This stops kernel threads from sharing filesystem state with userspace. This work is about 3 cycles old and has been in -next for about that time. When the kernel boots init_task creates PID 1 and then kthreadd. From that point every kthread and PID 1 share the same fs_struct. That is why pivot_root() has to rewrite the fs_struct of all kthreads. The rewriting exists so that kthreads can use init's filesystem state when they want to. It also means userspace can move the ground out from under the kernel. PID 1 now gets a completely separate fs_struct. All kthreads are anchored in a private SB_KERNMOUNT instance of nullfs that cannot be mounted on and cannot be used to follow other mounts. Userspace init can no longer affect kthread filesystem state and kthreads can no longer affect userspace fs state without explicit opting in to that. Path lookup from a kthread now fails by default. It makes it deliberately hard to offload security sensitive operations into init's filesystem state from a kthread. Places that legitimately need to look something up there opt in through the new scoped_with_init_fs() which temporarily overrides the caller's fs_struct with init's. usermodehelpers remain the only kernel tasks that genuinely share init's filesystem state, since they execute random binaries in the root filesystem (excellent...). The visible result is that /proc/2/root is a nullfs with an empty mountinfo while /proc/1/root is the real root" * tag 'vfs-7.3-rc1.kthread' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (26 commits) initramfs_test: use test init/exit hooks to override init fs fs: stop rewriting paths for PF_EXITING | PF_DUMPCORE fs: stop rewriting kthread fs structs fs: start all kthreads in nullfs nullfs: make nullfs multi-instance devtmpfs: create private mount namespace fs: add umh argument to struct kernel_clone_args fs: stop sharing fs_struct between init_task and pid 1 af_unix: use scoped_with_init_fs() for coredump socket lookup initramfs: use scoped_with_init_fs() for rootfs unpacking pnfs/blocklayout: use scoped_with_init_fs() for SCSI device lookup ksmbd: use scoped_with_init_fs() for VFS path operations ksmbd: use scoped_with_init_fs() for filesystem info path lookup ksmbd: use scoped_with_init_fs() for share path resolution fs: use scoped_with_init_fs() for kernel_read_file_from_path_initns() coredump: use scoped_with_init_fs() for coredump path resolution btrfs: use scoped_with_init_fs() for update_dev_time() scsi: target: use scoped_with_init_fs() for APTPL metadata scsi: target: use scoped_with_init_fs() for ALUA metadata crypto: ccp: use scoped_with_init_fs() for SEV file access ... |
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Linus Torvalds
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de03b17ec0 |
vfs-7.3-rc1.kfunc
Please consider pulling these changes from the signed vfs-7.3-rc1.kfunc tag. Thanks! Christian -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCan7RJQAKCRCRxhvAZXjc oqBnAQDzCTHIa0wColluZLaFVuL4pvipQzC7tjUUQCwPmy85EwEA2cyeguEkNYJZ SK3m4z8kfuZjO2tEOig+XCkmtVrSMQQ= =6gwq -----END PGP SIGNATURE----- Merge tag 'vfs-7.3-rc1.kfunc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs bpf access updates from Christian Brauner: "This adds a bpf_sock_read_xattr() kfunc so a BPF LSM program can read a user.* extended attribute from a socket's sockfs inode locklessly. userspace already uses user.* xattrs on sockets to implement socket rate limiting and to tag sockets for other purposes such as a varlink registry. There has been no efficient way for a BPF program to read those labels back. With this a listening socket marked from userspace with fsetxattr() can be read back during bind or connect and acted upon on the connecting socket. That lets userspace mark sockets and later rediscover them or implement policy on them" * tag 'vfs-7.3-rc1.kfunc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests/bpf: Add test for bpf_sock_read_xattr() kfunc fs: Add bpf_sock_read_xattr() kfunc to read socket xattrs |