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- Rework the menu and teo cpuidle governors to avoid calling
tick_nohz_get_sleep_length(), which is likely to become quite
expensive going forward, too often and improve making decisions
regarding whether or not to stop the scheduler tick in the teo
governor (Rafael Wysocki).
- Improve the performance of cpufreq_stats_create_table() in some
cases (Liao Chang).
- Fix two issues in the amd-pstate-ut cpufreq driver (Swapnil Sapkal).
- Use clamp() helper macro to improve the code readability in
cpufreq_verify_within_limits() (Liao Chang).
- Set stale CPU frequency to minimum in intel_pstate (Doug Smythies).
- Migrate cpufreq drivers for various platforms to use void remove
callback (Yangtao Li).
- Add online/offline/exit hooks for Tegra driver (Sumit Gupta).
- Explicitly include correct DT includes in cpufreq (Rob Herring).
- Frequency domain updates for qcom-hw driver (Neil Armstrong).
- Modify AMD pstate driver return the highest_perf value (Meng Li).
- Generic cleanups for cppc, mediatek and powernow driver (Liao Chang,
Konrad Dybcio).
- Add more platforms to cpufreq-arm driver's blocklist (AngeloGioacchino
Del Regno and Konrad Dybcio).
- brcmstb-avs-cpufreq: Fix -Warray-bounds bug (Gustavo A. R. Silva).
- Add device PM helpers to allow a device to remain powered-on during
system-wide transitions (Ulf Hansson).
- Rework hibernation memory snapshotting to avoid storing pages filled
with zeros in hibernation image files (Brian Geffon).
- Add check to make sure that CPU latency QoS constraints do not use
negative values (Clive Lin).
- Optimize rp->domains memory allocation in the Intel RAPL power
capping driver (xiongxin).
- Remove recursion while parsing zones in the arm_scmi power capping
driver (Cristian Marussi).
- Fix memory leak in devfreq_dev_release() (Boris Brezillon).
- Rewrite devfreq_monitor_start() kerneldoc comment (Manivannan
Sadhasivam).
- Explicitly include correct DT includes in devfreq (Rob Herring).
- Remove unsued pm_runtime_update_max_time_suspended() extern
declaration (YueHaibing).
- Add turbo-boost support to cpupower (Wyes Karny).
- Add support for amd_pstate mode change to cpupower (Wyes Karny).
- Fix 'cpupower idle_set' command to accept only numeric values of
arguments (Likhitha Korrapati).
- Clean up OPP code and add new frequency related APIs to it (Viresh
Kumar, Manivannan Sadhasivam).
- Convert ti cpufreq/opp bindings to json schema (Nishanth Menon).
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Merge tag 'pm-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These rework cpuidle governors to call tick_nohz_get_sleep_length()
less often and fix one of them, rework hibernation to avoid storing
pages filled with zeros in hibernation images, switch over some
cpufreq drivers to use void remove callbacks, fix and clean up
multiple cpufreq drivers, fix the devfreq core, update the cpupower
utility and make other assorted improvements.
Specifics:
- Rework the menu and teo cpuidle governors to avoid calling
tick_nohz_get_sleep_length(), which is likely to become quite
expensive going forward, too often and improve making decisions
regarding whether or not to stop the scheduler tick in the teo
governor (Rafael Wysocki)
- Improve the performance of cpufreq_stats_create_table() in some
cases (Liao Chang)
- Fix two issues in the amd-pstate-ut cpufreq driver (Swapnil Sapkal)
- Use clamp() helper macro to improve the code readability in
cpufreq_verify_within_limits() (Liao Chang)
- Set stale CPU frequency to minimum in intel_pstate (Doug Smythies)
- Migrate cpufreq drivers for various platforms to use void remove
callback (Yangtao Li)
- Add online/offline/exit hooks for Tegra driver (Sumit Gupta)
- Explicitly include correct DT includes in cpufreq (Rob Herring)
- Frequency domain updates for qcom-hw driver (Neil Armstrong)
- Modify AMD pstate driver return the highest_perf value (Meng Li)
- Generic cleanups for cppc, mediatek and powernow driver (Liao
Chang, Konrad Dybcio)
- Add more platforms to cpufreq-arm driver's blocklist
(AngeloGioacchino Del Regno and Konrad Dybcio)
- brcmstb-avs-cpufreq: Fix -Warray-bounds bug (Gustavo A. R. Silva)
- Add device PM helpers to allow a device to remain powered-on during
system-wide transitions (Ulf Hansson)
- Rework hibernation memory snapshotting to avoid storing pages
filled with zeros in hibernation image files (Brian Geffon)
- Add check to make sure that CPU latency QoS constraints do not use
negative values (Clive Lin)
- Optimize rp->domains memory allocation in the Intel RAPL power
capping driver (xiongxin)
- Remove recursion while parsing zones in the arm_scmi power capping
driver (Cristian Marussi)
- Fix memory leak in devfreq_dev_release() (Boris Brezillon)
- Rewrite devfreq_monitor_start() kerneldoc comment (Manivannan
Sadhasivam)
- Explicitly include correct DT includes in devfreq (Rob Herring)
- Remove unsued pm_runtime_update_max_time_suspended() extern
declaration (YueHaibing)
- Add turbo-boost support to cpupower (Wyes Karny)
- Add support for amd_pstate mode change to cpupower (Wyes Karny)
- Fix 'cpupower idle_set' command to accept only numeric values of
arguments (Likhitha Korrapati)
- Clean up OPP code and add new frequency related APIs to it (Viresh
Kumar, Manivannan Sadhasivam)
- Convert ti cpufreq/opp bindings to json schema (Nishanth Menon)"
* tag 'pm-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
cpufreq: tegra194: remove opp table in exit hook
cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit()
cpufreq: tegra194: add online/offline hooks
cpuidle: teo: Avoid unnecessary variable assignments
cpufreq: qcom-cpufreq-hw: add support for 4 freq domains
dt-bindings: cpufreq: qcom-hw: add a 4th frequency domain
cpufreq: amd-pstate-ut: Fix kernel panic when loading the driver
cpufreq: amd-pstate-ut: Remove module parameter access
cpufreq: Use clamp() helper macro to improve the code readability
PM: sleep: Add helpers to allow a device to remain powered-on
PM: QoS: Add check to make sure CPU latency is non-negative
PM: runtime: Remove unsued extern declaration of pm_runtime_update_max_time_suspended()
cpufreq: intel_pstate: set stale CPU frequency to minimum
cpufreq: stats: Improve the performance of cpufreq_stats_create_table()
dt-bindings: cpufreq: Convert ti-cpufreq to json schema
dt-bindings: opp: Convert ti-omap5-opp-supply to json schema
OPP: Fix argument name in doc comment
cpuidle: menu: Skip tick_nohz_get_sleep_length() call in some cases
cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie
cpufreq: cppc: cppc_cpufreq_get_rate() returns zero in all error cases.
...
CPU features and system registers:
* Advertise hinted conditional branch support (FEAT_HBC) to
userspace
* Avoid false positive "SANITY CHECK" warning when xCR registers
differ outside of the length field
Documentation:
* Fix macro name typo in SME documentation
Entry code:
* Unmask exceptions earlier on the system call entry path
Memory management:
* Don't bother clearing PTE_RDONLY for dirty ptes in
pte_wrprotect() and pte_modify()
Perf and PMU drivers:
* Initial support for Coresight TRBE devices on ACPI systems (the
coresight driver changes will come later)
* Fix hw_breakpoint single-stepping when called from bpf
* Fixes for DDR PMU on i.MX8MP SoC
* Add NUMA-awareness to Hisilicon PCIe PMU driver
* Fix locking dependency issue in Arm DMC620 PMU driver
* Workaround Hisilicon erratum 162001900 in the SMMUv3 PMU driver
* Add support for Arm CMN-700 r3 parts to the CMN PMU driver
* Add support for recent Arm Cortex CPU PMUs
* Update Hisilicon PMU maintainers
Selftests:
* Add a bunch of new features to the hwcap test (JSCVT, PMULL,
AES, SHA1, etc)
* Fix SSVE test to leave streaming-mode after grabbing the
signal context
* Add new test for SVE vector-length changes with SME enabled
Miscellaneous:
* Allow compiler to warn on suspicious looking system register
expressions
* Work around SDEI firmware bug by aborting any running
handlers on a kernel crash
* Fix some harmless warnings when building with W=1
* Remove some unused function declarations
* Other minor fixes and cleanup
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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:
"I think we have a bit less than usual on the architecture side, but
that's somewhat balanced out by a large crop of perf/PMU driver
updates and extensions to our selftests.
CPU features and system registers:
- Advertise hinted conditional branch support (FEAT_HBC) to userspace
- Avoid false positive "SANITY CHECK" warning when xCR registers
differ outside of the length field
Documentation:
- Fix macro name typo in SME documentation
Entry code:
- Unmask exceptions earlier on the system call entry path
Memory management:
- Don't bother clearing PTE_RDONLY for dirty ptes in pte_wrprotect()
and pte_modify()
Perf and PMU drivers:
- Initial support for Coresight TRBE devices on ACPI systems (the
coresight driver changes will come later)
- Fix hw_breakpoint single-stepping when called from bpf
- Fixes for DDR PMU on i.MX8MP SoC
- Add NUMA-awareness to Hisilicon PCIe PMU driver
- Fix locking dependency issue in Arm DMC620 PMU driver
- Workaround Hisilicon erratum 162001900 in the SMMUv3 PMU driver
- Add support for Arm CMN-700 r3 parts to the CMN PMU driver
- Add support for recent Arm Cortex CPU PMUs
- Update Hisilicon PMU maintainers
Selftests:
- Add a bunch of new features to the hwcap test (JSCVT, PMULL, AES,
SHA1, etc)
- Fix SSVE test to leave streaming-mode after grabbing the signal
context
- Add new test for SVE vector-length changes with SME enabled
Miscellaneous:
- Allow compiler to warn on suspicious looking system register
expressions
- Work around SDEI firmware bug by aborting any running handlers on a
kernel crash
- Fix some harmless warnings when building with W=1
- Remove some unused function declarations
- Other minor fixes and cleanup"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (62 commits)
drivers/perf: hisi: Update HiSilicon PMU maintainers
arm_pmu: acpi: Add a representative platform device for TRBE
arm_pmu: acpi: Refactor arm_spe_acpi_register_device()
kselftest/arm64: Fix hwcaps selftest build
hw_breakpoint: fix single-stepping when using bpf_overflow_handler
arm64/sysreg: refactor deprecated strncpy
kselftest/arm64: add jscvt feature to hwcap test
kselftest/arm64: add pmull feature to hwcap test
kselftest/arm64: add AES feature check to hwcap test
kselftest/arm64: add SHA1 and related features to hwcap test
arm64: sysreg: Generate C compiler warnings on {read,write}_sysreg_s arguments
kselftest/arm64: build BTI tests in output directory
perf/imx_ddr: don't enable counter0 if none of 4 counters are used
perf/imx_ddr: speed up overflow frequency of cycle
drivers/perf: hisi: Schedule perf session according to locality
kselftest/arm64: fix a memleak in zt_regs_run()
perf/arm-dmc620: Fix dmc620_pmu_irqs_lock/cpu_hotplug_lock circular lock dependency
perf/smmuv3: Add MODULE_ALIAS for module auto loading
perf/smmuv3: Enable HiSilicon Erratum 162001900 quirk for HIP08/09
kselftest/arm64: Size sycall-abi buffers for the actual maximum VL
...
This pull request prevents some memory-exhaustion false-postitive failures
in scftorture testing.
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Merge tag 'scftorture.2023.08.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull smp_call_function torture-test updates from Paul McKenney:
"This prevents some memory-exhaustion false-postitive failures in
scftorture testing"
* tag 'scftorture.2023.08.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
scftorture: Add CONFIG_PREEMPT_DYNAMIC=n to NOPREEMPT scenario
scftorture: Pause testing after memory-allocation failure
scftorture: Forgive memory-allocation failure if KASAN
torture: Scale scftorture memory based on number of CPUs
doc.2023.07.14b: Documentation updates.
fixes.2023.08.16a: Miscellaneous fixes, perhaps most notably simplifying
SRCU_NOTIFIER_INIT() as suggested.
rcu-tasks.2023.07.24a: RCU Tasks updates, most notably treating
Tasks RCU callbacks as lazy while still treating synchronous
grace periods as urgent. Also fixes one bug that restores the
ability to apply debug-objects to RCU Tasks and another that
fixes a race condition that could result in false-positive
failures of the boot-time self-test code.
rcuscale.2023.07.14b: RCU-scalability performance-test updates,
most notably adding the ability to measure the RCU-Tasks's
grace-period kthread's CPU consumption. This proved
quite useful for the rcu-tasks.2023.07.24a work.
refscale.2023.07.14b: Reference-acquisition/release performance-test
updates, including a fix for an uninitialized wait_queue_head_t.
torture.2023.08.14a: Miscellaneous torture-test updates.
torturescripts.2023.07.20a: Torture-test scripting updates, including
removal of the non-longer-functional formal-verification scripts,
test builds of individual RCU Tasks flavors, better diagnostics
for loss of connectivity for distributed rcutorture tests,
disabling of reboot loops in qemu/KVM-based rcutorture testing,
and passing of init parameters to rcutorture's init program.
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Merge tag 'rcu.2023.08.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU updates from Paul McKenney:
- Documentation updates
- Miscellaneous fixes, perhaps most notably simplifying
SRCU_NOTIFIER_INIT() as suggested
- RCU Tasks updates, most notably treating Tasks RCU callbacks as lazy
while still treating synchronous grace periods as urgent. Also fixes
one bug that restores the ability to apply debug-objects to RCU Tasks
and another that fixes a race condition that could result in
false-positive failures of the boot-time self-test code
- RCU-scalability performance-test updates, most notably adding the
ability to measure the RCU-Tasks's grace-period kthread's CPU
consumption. This proved quite useful for the RCU Tasks work
- Reference-acquisition/release performance-test updates, including a
fix for an uninitialized wait_queue_head_t
- Miscellaneous torture-test updates
- Torture-test scripting updates, including removal of the
non-longer-functional formal-verification scripts, test builds of
individual RCU Tasks flavors, better diagnostics for loss of
connectivity for distributed rcutorture tests, disabling of reboot
loops in qemu/KVM-based rcutorture testing, and passing of init
parameters to rcutorture's init program
* tag 'rcu.2023.08.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (64 commits)
rcu: Use WRITE_ONCE() for assignments to ->next for rculist_nulls
rcu: Make the rcu_nocb_poll boot parameter usable via boot config
rcu: Mark __rcu_irq_enter_check_tick() ->rcu_urgent_qs load
srcu,notifier: Remove #ifdefs in favor of SRCU Tiny srcu_usage
rcutorture: Stop right-shifting torture_random() return values
torture: Stop right-shifting torture_random() return values
torture: Move stutter_wait() timeouts to hrtimers
torture: Move torture_shuffle() timeouts to hrtimers
torture: Move torture_onoff() timeouts to hrtimers
torture: Make torture_hrtimeout_*() use TASK_IDLE
torture: Add lock_torture writer_fifo module parameter
torture: Add a kthread-creation callback to _torture_create_kthread()
rcu-tasks: Fix boot-time RCU tasks debug-only deadlock
rcu-tasks: Permit use of debug-objects with RCU Tasks flavors
checkpatch: Complain about unexpected uses of RCU Tasks Trace
torture: Cause mkinitrd.sh to indicate failure on compile errors
torture: Make init program dump command-line arguments
torture: Switch qemu from -nographic to -display none
torture: Add init-program support for loongarch
torture: Avoid torture-test reboot loops
...
- Carve out the new CONFIG_LIST_HARDENED as a more focused subset of
CONFIG_DEBUG_LIST (Marco Elver).
- Fix kallsyms lookup failure under Clang LTO (Yonghong Song).
- Clarify documentation for CONFIG_UBSAN_TRAP (Jann Horn).
- Flexible array member conversion not carried in other tree (Gustavo
A. R. Silva).
- Various strlcpy() and strncpy() removals not carried in other trees
(Azeem Shaikh, Justin Stitt).
- Convert nsproxy.count to refcount_t (Elena Reshetova).
- Add handful of __counted_by annotations not carried in other trees,
as well as an LKDTM test.
- Fix build failure with gcc-plugins on GCC 14+.
- Fix selftests to respect SKIP for signal-delivery tests.
- Fix CFI warning for paravirt callback prototype.
- Clarify documentation for seq_show_option_n() usage.
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Merge tag 'hardening-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
"As has become normal, changes are scattered around the tree (either
explicitly maintainer Acked or for trivial stuff that went ignored):
- Carve out the new CONFIG_LIST_HARDENED as a more focused subset of
CONFIG_DEBUG_LIST (Marco Elver)
- Fix kallsyms lookup failure under Clang LTO (Yonghong Song)
- Clarify documentation for CONFIG_UBSAN_TRAP (Jann Horn)
- Flexible array member conversion not carried in other tree (Gustavo
A. R. Silva)
- Various strlcpy() and strncpy() removals not carried in other trees
(Azeem Shaikh, Justin Stitt)
- Convert nsproxy.count to refcount_t (Elena Reshetova)
- Add handful of __counted_by annotations not carried in other trees,
as well as an LKDTM test
- Fix build failure with gcc-plugins on GCC 14+
- Fix selftests to respect SKIP for signal-delivery tests
- Fix CFI warning for paravirt callback prototype
- Clarify documentation for seq_show_option_n() usage"
* tag 'hardening-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits)
LoadPin: Annotate struct dm_verity_loadpin_trusted_root_digest with __counted_by
kallsyms: Change func signature for cleanup_symbol_name()
kallsyms: Fix kallsyms_selftest failure
nsproxy: Convert nsproxy.count to refcount_t
integrity: Annotate struct ima_rule_opt_list with __counted_by
lkdtm: Add FAM_BOUNDS test for __counted_by
Compiler Attributes: counted_by: Adjust name and identifier expansion
um: refactor deprecated strncpy to memcpy
um: vector: refactor deprecated strncpy
alpha: Replace one-element array with flexible-array member
hardening: Move BUG_ON_DATA_CORRUPTION to hardening options
list: Introduce CONFIG_LIST_HARDENED
list_debug: Introduce inline wrappers for debug checks
compiler_types: Introduce the Clang __preserve_most function attribute
gcc-plugins: Rename last_stmt() for GCC 14+
selftests/harness: Actually report SKIP for signal tests
x86/paravirt: Fix tlb_remove_table function callback prototype warning
EISA: Replace all non-returning strlcpy with strscpy
perf: Replace strlcpy with strscpy
um: Remove strlcpy declaration
...
- Provide USER_NOTIFY flag for synchronous mode (Andrei Vagin, Peter
Oskolkov). This touches the scheduler and perf but has been Acked by
Peter Zijlstra.
- Fix regression in syscall skipping and restart tracing on arm32.
This touches arch/arm/ but has been Acked by Arnd Bergmann.
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Merge tag 'seccomp-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
- Provide USER_NOTIFY flag for synchronous mode (Andrei Vagin, Peter
Oskolkov). This touches the scheduler and perf but has been Acked by
Peter Zijlstra.
- Fix regression in syscall skipping and restart tracing on arm32. This
touches arch/arm/ but has been Acked by Arnd Bergmann.
* tag 'seccomp-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
seccomp: Add missing kerndoc notations
ARM: ptrace: Restore syscall skipping for tracers
ARM: ptrace: Restore syscall restart tracing
selftests/seccomp: Handle arm32 corner cases better
perf/benchmark: add a new benchmark for seccom_unotify
selftest/seccomp: add a new test for the sync mode of seccomp_user_notify
seccomp: add the synchronous mode for seccomp_unotify
sched: add a few helpers to wake up tasks on the current cpu
sched: add WF_CURRENT_CPU and externise ttwu
seccomp: don't use semaphore and wait_queue together
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Merge tag 'filelock-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull file locking updates from Jeff Layton:
- new functionality for F_OFD_GETLK: requesting a type of F_UNLCK will
find info about whatever lock happens to be first in the given range,
regardless of type.
- an OFD lock selftest
- bugfix involving a UAF in a tracepoint
- comment typo fix
* tag 'filelock-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
locks: fix KASAN: use-after-free in trace_event_raw_event_filelock_lock
fs/locks: Fix typo
selftests: add OFD lock tests
fs/locks: F_UNLCK extension for F_OFD_GETLK
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Merge tag 'v6.6-fs.proc.uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull procfs fixes from Christian Brauner:
"Mode changes to files under /proc/<pid>/ aren't supported ever since
commit 6d76fa58b050 ("Don't allow chmod() on the /proc/<pid>/ files").
Due to an oversight in commit 1b3044e39a89 ("procfs: fix pthread
cross-thread naming if !PR_DUMPABLE") in switching from REG to NOD,
mode changes on /proc/thread-self/comm were accidently allowed.
Similar, mode changes for all files beneath /proc/<pid>/net/ are
blocked but mode changes on /proc/<pid>/net itself were accidently
allowed.
Both issues come down to not using the generic proc_setattr() helper
which blocks all mode changes. This is rectified with this pull
request.
This also removes a strange nolibc test that abused /proc/<pid>/net
for testing mode changes. Using procfs for this test never made a lot
of sense given procfs has special semantics for almost everything
anway.
Both changes are minor user-visible changes. It is however very
unlikely that mode changes on proc/<pid>/net and
/proc/thread-self/comm are something that userspace relies on"
* tag 'v6.6-fs.proc.uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
procfs: block chmod on /proc/thread-self/comm
proc: use generic setattr() for /proc/$PID/net
selftests/nolibc: drop test chmod_net
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Merge tag 'v6.6-vfs.fchmodat2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull fchmodat2 system call from Christian Brauner:
"This adds the fchmodat2() system call. It is a revised version of the
fchmodat() system call, adding a missing flag argument. Support for
both AT_SYMLINK_NOFOLLOW and AT_EMPTY_PATH are included.
Adding this system call revision has been a longstanding request but
so far has always fallen through the cracks. While the kernel
implementation of fchmodat() does not have a flag argument the libc
provided POSIX-compliant fchmodat(3) version does. Both glibc and musl
have to implement a workaround in order to support AT_SYMLINK_NOFOLLOW
(see [1] and [2]).
The workaround is brittle because it relies not just on O_PATH and
O_NOFOLLOW semantics and procfs magic links but also on our rather
inconsistent symlink semantics.
This gives userspace a proper fchmodat2() system call that libcs can
use to properly implement fchmodat(3) and allows them to get rid of
their hacks. In this case it will immediately benefit them as the
current workaround is already defunct because of aformentioned
inconsistencies.
In addition to AT_SYMLINK_NOFOLLOW, give userspace the ability to use
AT_EMPTY_PATH with fchmodat2(). This is already possible with
fchownat() so there's no reason to not also support it for
fchmodat2().
The implementation is simple and comes with selftests. Implementation
of the system call and wiring up the system call are done as separate
patches even though they could arguably be one patch. But in case
there are merge conflicts from other system call additions it can be
beneficial to have separate patches"
Link: https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/fchmodat.c;h=17eca54051ee28ba1ec3f9aed170a62630959143;hb=a492b1e5ef7ab50c6fdd4e4e9879ea5569ab0a6c#l35 [1]
Link: https://git.musl-libc.org/cgit/musl/tree/src/stat/fchmodat.c?id=718f363bc2067b6487900eddc9180c84e7739f80#n28 [2]
* tag 'v6.6-vfs.fchmodat2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests: fchmodat2: remove duplicate unneeded defines
fchmodat2: add support for AT_EMPTY_PATH
selftests: Add fchmodat2 selftest
arch: Register fchmodat2, usually as syscall 452
fs: Add fchmodat2()
Non-functional cleanup of a "__user * filename"
The rest of the updates for v6.6, some of the highlights include:
- A big API cleanup from Morimoto-san, rationalising the places we put
functions.
- Lots of work on the SOF framework, AMD and Intel drivers, including a
lot of cleanup and new device support.
- Standardisation of the presentation of jacks from drivers.
- Provision of some generic sound card DT properties.
- Conversion oof more drivers to the maple tree register cache.
- New drivers for AMD Van Gogh, AWInic AW88261, Cirrus Logic cs42l43,
various Intel platforms, Mediatek MT7986, RealTek RT1017 and StarFive
JH7110.
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Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.6
The rest of the updates for v6.6, some of the highlights include:
- A big API cleanup from Morimoto-san, rationalising the places we put
functions.
- Lots of work on the SOF framework, AMD and Intel drivers, including a
lot of cleanup and new device support.
- Standardisation of the presentation of jacks from drivers.
- Provision of some generic sound card DT properties.
- Conversion oof more drivers to the maple tree register cache.
- New drivers for AMD Van Gogh, AWInic AW88261, Cirrus Logic cs42l43,
various Intel platforms, Mediatek MT7986, RealTek RT1017 and StarFive
JH7110.
Test different variations of single-stepping into interrupts:
- SVC and PGM interrupts;
- Interrupts generated by ISKE;
- Interrupts generated by instructions emulated by KVM;
- Interrupts generated by instructions emulated by userspace.
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-ID: <20230725143857.228626-7-iii@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
[frankja@de.igm.com: s/ASSERT_EQ/TEST_ASSERT_EQ/ because function was
renamed in the selftest printf series]
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
If failed to set link1_1 to netns client, we should delete link1_1 in the
cleanup path. But if set link1_1 to netns client successfully, delete
link1_1 will report warning. So it will be safer creating directly the
devices in the target namespaces.
Reported-by: Hangbin Liu <liuhangbin@gmail.com>
Closes: https://lore.kernel.org/all/ZNyJx1HtXaUzOkNA@Laptop-X1/
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for using NLM_F_REPLACE, _EXCL, _CREATE and _APPEND flags
in requests.
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-10-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add support for the 'array-nest' attribute type that is used by several
netlink-raw families.
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-9-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Move decode_fixed_header into YnlFamily and add a _fixed_header_size
method to allow extack decoding to skip the fixed header.
Signed-off-by: Donald Hunter <donald.hunter@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20230825122756.7603-7-donald.hunter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We use a tempfile for code generation, to avoid wiping the target
file out if the code generator crashes. File contents are copied
from tempfile to actual destination at the end of main().
uAPI generation is relatively simple so when generating the uAPI
header we return from main() early, and never reach the "copy code
over" stage. Since commit under Fixes uAPI headers are not updated
by ynl-gen.
Move the copy/commit of the code into CodeWriter, to make it
easier to call at any point in time. Hook it into the destructor
to make sure we don't miss calling it.
Fixes: f65f305ae008 ("tools: ynl-gen: use temporary file for rendering")
Link: https://lore.kernel.org/r/20230824212431.1683612-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2023-08-25
We've added 87 non-merge commits during the last 8 day(s) which contain
a total of 104 files changed, 3719 insertions(+), 4212 deletions(-).
The main changes are:
1) Add multi uprobe BPF links for attaching multiple uprobes
and usdt probes, which is significantly faster and saves extra fds,
from Jiri Olsa.
2) Add support BPF cpu v4 instructions for arm64 JIT compiler,
from Xu Kuohai.
3) Add support BPF cpu v4 instructions for riscv64 JIT compiler,
from Pu Lehui.
4) Fix LWT BPF xmit hooks wrt their return values where propagating
the result from skb_do_redirect() would trigger a use-after-free,
from Yan Zhai.
5) Fix a BPF verifier issue related to bpf_kptr_xchg() with local kptr
where the map's value kptr type and locally allocated obj type
mismatch, from Yonghong Song.
6) Fix BPF verifier's check_func_arg_reg_off() function wrt graph
root/node which bypassed reg->off == 0 enforcement,
from Kumar Kartikeya Dwivedi.
7) Lift BPF verifier restriction in networking BPF programs to treat
comparison of packet pointers not as a pointer leak,
from Yafang Shao.
8) Remove unmaintained XDP BPF samples as they are maintained
in xdp-tools repository out of tree, from Toke Høiland-Jørgensen.
9) Batch of fixes for the tracing programs from BPF samples in order
to make them more libbpf-aware, from Daniel T. Lee.
10) Fix a libbpf signedness determination bug in the CO-RE relocation
handling logic, from Andrii Nakryiko.
11) Extend libbpf to support CO-RE kfunc relocations. Also follow-up
fixes for bpf_refcount shared ownership implementation,
both from Dave Marchevsky.
12) Add a new bpf_object__unpin() API function to libbpf,
from Daniel Xu.
13) Fix a memory leak in libbpf to also free btf_vmlinux
when the bpf_object gets closed, from Hao Luo.
14) Small error output improvements to test_bpf module, from Helge Deller.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (87 commits)
selftests/bpf: Add tests for rbtree API interaction in sleepable progs
bpf: Allow bpf_spin_{lock,unlock} in sleepable progs
bpf: Consider non-owning refs to refcounted nodes RCU protected
bpf: Reenable bpf_refcount_acquire
bpf: Use bpf_mem_free_rcu when bpf_obj_dropping refcounted nodes
bpf: Consider non-owning refs trusted
bpf: Ensure kptr_struct_meta is non-NULL for collection insert and refcount_acquire
selftests/bpf: Enable cpu v4 tests for RV64
riscv, bpf: Support unconditional bswap insn
riscv, bpf: Support signed div/mod insns
riscv, bpf: Support 32-bit offset jmp insn
riscv, bpf: Support sign-extension mov insns
riscv, bpf: Support sign-extension load insns
riscv, bpf: Fix missing exception handling and redundant zext for LDX_B/H/W
samples/bpf: Add note to README about the XDP utilities moved to xdp-tools
samples/bpf: Cleanup .gitignore
samples/bpf: Remove the xdp_sample_pkts utility
samples/bpf: Remove the xdp1 and xdp2 utilities
samples/bpf: Remove the xdp_rxq_info utility
samples/bpf: Remove the xdp_redirect* utilities
...
====================
Link: https://lore.kernel.org/r/20230825194319.12727-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Merge devfreq changes and power management tools changes for 6.6-rc1:
- Fix memory leak in devfreq_dev_release() (Boris Brezillon).
- Rewrite devfreq_monitor_start() kerneldoc comment (Manivannan
Sadhasivam).
- Explicitly include correct DT includes in devfreq (Rob Herring).
- Add turbo-boost support to cpupower (Wyes Karny).
- Add support for amd_pstate mode change to cpupower (Wyes Karny).
- Fix 'cpupower idle_set' command to accept only numeric values of
arguments (Likhitha Korrapati).
* pm-devfreq:
PM / devfreq: Fix leak in devfreq_dev_release()
PM / devfreq: Reword the kernel-doc comment for devfreq_monitor_start() API
PM / devfreq: Explicitly include correct DT includes
* pm-tools:
cpupower: Fix cpuidle_set to accept only numeric values for idle-set operation.
cpupower: Add turbo-boost support in cpupower
cpupower: Add support for amd_pstate mode change
cpupower: Add EPP value change support
cpupower: Add is_valid_path API
cpupower: Recognise amd-pstate active mode driver
cpupower: Bump soname version
or aren't considered suitable for a -stable backport.
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Merge tag 'mm-hotfixes-stable-2023-08-25-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"18 hotfixes. 13 are cc:stable and the remainder pertain to post-6.4
issues or aren't considered suitable for a -stable backport"
* tag 'mm-hotfixes-stable-2023-08-25-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
shmem: fix smaps BUG sleeping while atomic
selftests: cachestat: catch failing fsync test on tmpfs
selftests: cachestat: test for cachestat availability
maple_tree: disable mas_wr_append() when other readers are possible
madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check
madvise:madvise_free_huge_pmd(): don't use mapcount() against large folio for sharing check
madvise:madvise_cold_or_pageout_pte_range(): don't use mapcount() against large folio for sharing check
mm: multi-gen LRU: don't spin during memcg release
mm: memory-failure: fix unexpected return value in soft_offline_page()
radix tree: remove unused variable
mm: add a call to flush_cache_vmap() in vmap_pfn()
selftests/mm: FOLL_LONGTERM need to be updated to 0x100
nilfs2: fix general protection fault in nilfs_lookup_dirty_data_buffers()
mm/gup: handle cont-PTE hugetlb pages correctly in gup_must_unshare() via GUP-fast
selftests: cgroup: fix test_kmem_basic less than error
mm: enable page walking API to lock vmas during the walk
smaps: use vm_normal_page_pmd() instead of follow_trans_huge_pmd()
mm/gup: reintroduce FOLL_NUMA as FOLL_HONOR_NUMA_FAULT
Confirm that the following sleepable prog states fail verification:
* bpf_rcu_read_unlock before bpf_spin_unlock
* RCU CS will last at least as long as spin_lock CS
Also confirm that correct usage passes verification, specifically:
* Explicit use of bpf_rcu_read_{lock, unlock} in sleepable test prog
* Implied RCU CS due to spin_lock CS
None of the selftest progs actually attach to bpf_testmod's
bpf_testmod_test_read.
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Link: https://lore.kernel.org/r/20230821193311.3290257-8-davemarchevsky@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Now that all reported issues are fixed, bpf_refcount_acquire can be
turned back on. Also reenable all bpf_refcount-related tests which were
disabled.
This a revert of:
* commit f3514a5d6740 ("selftests/bpf: Disable newly-added 'owner' field test until refcount re-enabled")
* commit 7deca5eae833 ("bpf: Disable bpf_refcount_acquire kfunc calls until race conditions are fixed")
Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230821193311.3290257-5-davemarchevsky@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Explicitly set the exception vector to #UD when potentially injecting an
exception in sync_regs_test's subtests that try to detect TOCTOU bugs
in KVM's handling of exceptions injected by userspace. A side effect of
the original KVM bug was that KVM would clear the vector, but relying on
KVM to clear the vector (i.e. make it #DE) makes it less likely that the
test would ever find *new* KVM bugs, e.g. because only the first iteration
would run with a legal vector to start.
Explicitly inject #UD for race_events_inj_pen() as well, e.g. so that it
doesn't inherit the illegal 255 vector from race_events_exc(), which
currently runs first.
Link: https://lore.kernel.org/r/20230817233430.1416463-3-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reload known good vCPU state if the vCPU triple faults in any of the
race_sync_regs() subtests, e.g. if KVM successfully injects an exception
(the vCPU isn't configured to handle exceptions). On Intel, the VMCS
is preserved even after shutdown, but AMD's APM states that the VMCB is
undefined after a shutdown and so KVM synthesizes an INIT to sanitize
vCPU/VMCB state, e.g. to guard against running with a garbage VMCB.
The synthetic INIT results in the vCPU never exiting to userspace, as it
gets put into Real Mode at the reset vector, which is full of zeros (as is
GPA 0 and beyond), and so executes ADD for a very, very long time.
Fixes: 60c4063b4752 ("KVM: selftests: Extend x86's sync_regs_test to check for event vector races")
Cc: Michal Luczaj <mhal@rbox.co>
Link: https://lore.kernel.org/r/20230817233430.1416463-2-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
* for-next/selftests: (22 commits)
kselftest/arm64: Fix hwcaps selftest build
kselftest/arm64: add jscvt feature to hwcap test
kselftest/arm64: add pmull feature to hwcap test
kselftest/arm64: add AES feature check to hwcap test
kselftest/arm64: add SHA1 and related features to hwcap test
kselftest/arm64: build BTI tests in output directory
kselftest/arm64: fix a memleak in zt_regs_run()
kselftest/arm64: Size sycall-abi buffers for the actual maximum VL
kselftest/arm64: add lse and lse2 features to hwcap test
kselftest/arm64: add test item that support to capturing the SIGBUS signal
kselftest/arm64: add DEF_SIGHANDLER_FUNC() and DEF_INST_RAISE_SIG() helpers
kselftest/arm64: add crc32 feature to hwcap test
kselftest/arm64: add float-point feature to hwcap test
kselftest/arm64: Use the tools/include compiler.h rather than our own
kselftest/arm64: Use shared OPTIMZER_HIDE_VAR() definiton
kselftest/arm64: Make the tools/include headers available
tools include: Add some common function attributes
tools compiler.h: Add OPTIMIZER_HIDE_VAR()
kselftest/arm64: Exit streaming mode after collecting signal context
kselftest/arm64: add RCpc load-acquire to hwcap test
...
- Fix ring buffer being permanently disabled due to missed record_disabled()
Changing the trace cpu mask will disable the ring buffers for the CPUs no
longer in the mask. But it fails to update the snapshot buffer. If a snapshot
takes place, the accounting for the ring buffer being disabled is corrupted
and this can lead to the ring buffer being permanently disabled.
- Add test case for snapshot and cpu mask working together
- Fix memleak by the function graph tracer not getting closed properly.
The iterator is used to read the ring buffer. When it opens, it calls
the open function of a tracer, and when it is closed, it calls the close
iteration. While a trace is being read, it is still possible to change
the tracer. If this happens between the function graph tracer and the
wakeup tracer (which uses function graph tracing), the tracers are not
closed properly during when the iterator sees the switch, and the wakeup
function did not initialize its private pointer to NULL, which is used
to know if the function graph tracer was the last tracer. It could be
fooled in thinking it is, but then on exit it does not call the close
function of the function graph tracer to clean up its data.
- Fix synthetic events on big endian machines, by introducing a union
that does the conversions properly.
- Fix synthetic events from printing out the number of elements in the
stacktrace when it shouldn't.
- Fix synthetic events stacktrace to not print a bogus value at the end.
- Introduce a pipe_cpumask that prevents the trace_pipe files from being
opened by more than one task (file descriptor). There was a race found
where if splice is called, the iter->ent could become stale and events
could be missed. There's no point reading a producer/consumer file by
more than one task as they will corrupt each other anyway. Add a cpumask
that keeps track of the per_cpu trace_pipe files as well as the global
trace_pipe file that prevents more than one open of a trace_pipe file
that represents the same ring buffer. This prevents the race from
happening.
- Fix ftrace samples for arm64 to work with older compilers.
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Merge tag 'trace-v6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix ring buffer being permanently disabled due to missed
record_disabled()
Changing the trace cpu mask will disable the ring buffers for the
CPUs no longer in the mask. But it fails to update the snapshot
buffer. If a snapshot takes place, the accounting for the ring buffer
being disabled is corrupted and this can lead to the ring buffer
being permanently disabled.
- Add test case for snapshot and cpu mask working together
- Fix memleak by the function graph tracer not getting closed properly.
The iterator is used to read the ring buffer. When it opens, it calls
the open function of a tracer, and when it is closed, it calls the
close iteration. While a trace is being read, it is still possible to
change the tracer.
If this happens between the function graph tracer and the wakeup
tracer (which uses function graph tracing), the tracers are not
closed properly during when the iterator sees the switch, and the
wakeup function did not initialize its private pointer to NULL, which
is used to know if the function graph tracer was the last tracer. It
could be fooled in thinking it is, but then on exit it does not call
the close function of the function graph tracer to clean up its data.
- Fix synthetic events on big endian machines, by introducing a union
that does the conversions properly.
- Fix synthetic events from printing out the number of elements in the
stacktrace when it shouldn't.
- Fix synthetic events stacktrace to not print a bogus value at the
end.
- Introduce a pipe_cpumask that prevents the trace_pipe files from
being opened by more than one task (file descriptor).
There was a race found where if splice is called, the iter->ent could
become stale and events could be missed. There's no point reading a
producer/consumer file by more than one task as they will corrupt
each other anyway. Add a cpumask that keeps track of the per_cpu
trace_pipe files as well as the global trace_pipe file that prevents
more than one open of a trace_pipe file that represents the same ring
buffer. This prevents the race from happening.
- Fix ftrace samples for arm64 to work with older compilers.
* tag 'trace-v6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
samples: ftrace: Replace bti assembly with hint for older compiler
tracing: Introduce pipe_cpumask to avoid race on trace_pipes
tracing: Fix memleak due to race between current_tracer and trace
tracing/synthetic: Allocate one additional element for size
tracing/synthetic: Skip first entry for stack traces
tracing/synthetic: Use union instead of casts
selftests/ftrace: Add a basic testcase for snapshot
tracing: Fix cpu buffers unavailable due to 'record_disabled' missed
Differentiate between empty list and None for member lists.
New families may want to create request responses with no attribute.
If we treat those the same as None we end up rendering
a full parsing policy in user space, instead of an empty one.
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230824003056.1436637-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We look for attributes inside do.request, but there's another
layer of nesting in the spec, look inside do.request.attributes.
This bug had no effect as all global policies we generate (fou)
seem to be full, anyway, and we treat full and empty the same.
Next patch will change the treatment of empty policies.
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230824003056.1436637-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Recent changes made us assume that input for binary data is in hex.
When using YNL as a Python library it's possible to pass in raw bytes.
Bring the ability to do that back.
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230824003056.1436637-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Remove comparing pointer to 0 to avoid this warning from coccinelle:
./tools/testing/selftests/mm/map_populate.c:80:16-17: WARNING comparing pointer to 0, suggest !E
./tools/testing/selftests/mm/map_populate.c:80:16-17: WARNING comparing pointer to 0
Link: https://lkml.kernel.org/r/20230817160033.90079-1-tuananhlfc@gmail.com
Signed-off-by: Anh Tuan Phan <tuananhlfc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Currently, not all kernel memory usage is being accounted for. This
commit switches to using the kernel entry within memory.stat which
already includes kernel_stack, pagetables, and slab. The kernel entry
also includes vmalloc and other additional kernel memory use cases which
were missing.
Link: https://lkml.kernel.org/r/bvrhe2tpsts2azaroq4ubp2slawmop6orndsswrewuscw3ugvk@kmemmrttsnc7
Signed-off-by: Lucas Karpinski <lkarpins@redhat.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Zefan Li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "New page table range API", v6.
This patchset changes the API used by the MM to set up page table entries.
The four APIs are:
set_ptes(mm, addr, ptep, pte, nr)
update_mmu_cache_range(vma, addr, ptep, nr)
flush_dcache_folio(folio)
flush_icache_pages(vma, page, nr)
flush_dcache_folio() isn't technically new, but no architecture
implemented it, so I've done that for them. The old APIs remain around
but are mostly implemented by calling the new interfaces.
The new APIs are based around setting up N page table entries at once.
The N entries belong to the same PMD, the same folio and the same VMA, so
ptep++ is a legitimate operation, and locking is taken care of for you.
Some architectures can do a better job of it than just a loop, but I have
hesitated to make too deep a change to architectures I don't understand
well.
One thing I have changed in every architecture is that PG_arch_1 is now a
per-folio bit instead of a per-page bit when used for dcache clean/dirty
tracking. This was something that would have to happen eventually, and it
makes sense to do it now rather than iterate over every page involved in a
cache flush and figure out if it needs to happen.
The point of all this is better performance, and Fengwei Yin has measured
improvement on x86. I suspect you'll see improvement on your architecture
too. Try the new will-it-scale test mentioned here:
https://lore.kernel.org/linux-mm/20230206140639.538867-5-fengwei.yin@intel.com/
You'll need to run it on an XFS filesystem and have
CONFIG_TRANSPARENT_HUGEPAGE set.
This patchset is the basis for much of the anonymous large folio work
being done by Ryan, so it's received quite a lot of testing over the last
few months.
This patch (of 38):
Determine if a value lies within a range more efficiently (subtraction +
comparison vs two comparisons and an AND). It also has useful (under some
circumstances) behaviour if the range exceeds the maximum value of the
type. Convert all the conflicting definitions of in_range() within the
kernel; some can use the generic definition while others need their own
definition.
Link: https://lkml.kernel.org/r/20230802151406.3735276-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230802151406.3735276-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The cachestat kselftest runs a test on a normal file, which is created
temporarily in the current directory. Among the tests it runs there is a
call to fsync(), which is expected to clean all dirty pages used by the
file.
However the tmpfs filesystem implements fsync() as noop_fsync(), so the
call will not even attempt to clean anything when this test file happens
to live on a tmpfs instance. This happens in an initramfs, or when the
current directory is in /dev/shm or sometimes /tmp.
To avoid this test failing wrongly, use statfs() to check which filesystem
the test file lives on. If that is "tmpfs", we skip the fsync() test.
Since the fsync test is only one part of the "normal file" test, we now
execute this twice, skipping the fsync part on the first call. This way
only the second test, including the fsync part, would be skipped.
Link: https://lkml.kernel.org/r/20230821160534.3414911-3-andre.przywara@arm.com
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Patch series "selftests: cachestat: fix run on older kernels", v2.
I ran all kernel selftests on some test machine, and stumbled upon
cachestat failing (among others). These patches fix the run on older
kernels and when the current directory is on a tmpfs instance.
This patch (of 2):
As cachestat is a new syscall, it won't be available on older kernels, for
instance those running on a development machine. At the moment the test
reports all tests as "not ok" in this case.
Test for the cachestat syscall availability first, before doing further
tests, and bail out early with a TAP SKIP comment.
This also uses the opportunity to add the proper TAP headers, and add one
check for proper error handling (illegal file descriptor).
Link: https://lkml.kernel.org/r/20230821160534.3414911-1-andre.przywara@arm.com
Link: https://lkml.kernel.org/r/20230821160534.3414911-2-andre.przywara@arm.com
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Nhat Pham <nphamcs@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Enable cpu v4 tests for RV64, and the relevant tests have passed.
Signed-off-by: Pu Lehui <pulehui@huawei.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/r/20230824095001.3408573-8-pulehui@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
and netfilter
Fixes to fixes:
- nf_tables:
- GC transaction race with abort path
- defer gc run if previous batch is still pending
Previous releases - regressions:
- ipv4: fix data-races around inet->inet_id
- phy: fix deadlocking in phy_error() invocation
- mdio: fix C45 read/write protocol
- ipvlan: fix a reference count leak warning in ipvlan_ns_exit()
- ice: fix NULL pointer deref during VF reset
- i40e: fix potential NULL pointer dereferencing of pf->vf i40e_sync_vsi_filters()
- tg3: use slab_build_skb() when needed
- mtk_eth_soc: fix NULL pointer on hw reset
Previous releases - always broken:
- core: validate veth and vxcan peer ifindexes
- sched: fix a qdisc modification with ambiguous command request
- devlink: add missing unregister linecard notification
- wifi: mac80211: limit reorder_buf_filtered to avoid UBSAN warning
- batman:
- do not get eth header before batadv_check_management_packet
- fix batadv_v_ogm_aggr_send memory leak
- bonding: fix macvlan over alb bond support
- mlxsw: set time stamp fields also when its type is MIRROR_UTC
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.5-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from wifi, can and netfilter.
Fixes to fixes:
- nf_tables:
- GC transaction race with abort path
- defer gc run if previous batch is still pending
Previous releases - regressions:
- ipv4: fix data-races around inet->inet_id
- phy: fix deadlocking in phy_error() invocation
- mdio: fix C45 read/write protocol
- ipvlan: fix a reference count leak warning in ipvlan_ns_exit()
- ice: fix NULL pointer deref during VF reset
- i40e: fix potential NULL pointer dereferencing of pf->vf in
i40e_sync_vsi_filters()
- tg3: use slab_build_skb() when needed
- mtk_eth_soc: fix NULL pointer on hw reset
Previous releases - always broken:
- core: validate veth and vxcan peer ifindexes
- sched: fix a qdisc modification with ambiguous command request
- devlink: add missing unregister linecard notification
- wifi: mac80211: limit reorder_buf_filtered to avoid UBSAN warning
- batman:
- do not get eth header before batadv_check_management_packet
- fix batadv_v_ogm_aggr_send memory leak
- bonding: fix macvlan over alb bond support
- mlxsw: set time stamp fields also when its type is MIRROR_UTC"
* tag 'net-6.5-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (54 commits)
selftests: bonding: add macvlan over bond testing
selftest: bond: add new topo bond_topo_2d1c.sh
bonding: fix macvlan over alb bond support
rtnetlink: Reject negative ifindexes in RTM_NEWLINK
netfilter: nf_tables: defer gc run if previous batch is still pending
netfilter: nf_tables: fix out of memory error handling
netfilter: nf_tables: use correct lock to protect gc_list
netfilter: nf_tables: GC transaction race with abort path
netfilter: nf_tables: flush pending destroy work before netlink notifier
netfilter: nf_tables: validate all pending tables
ibmveth: Use dcbf rather than dcbfl
i40e: fix potential NULL pointer dereferencing of pf->vf i40e_sync_vsi_filters()
net/sched: fix a qdisc modification with ambiguous command request
igc: Fix the typo in the PTM Control macro
batman-adv: Hold rtnl lock during MTU update via netlink
igb: Avoid starting unnecessary workqueues
can: raw: add missing refcount for memory leak fix
can: isotp: fix support for transmission of SF without flow control
bnx2x: new flag for track HW resource allocation
sfc: allocate a big enough SKB for loopback selftest packet
...
Test the basic locking stuff on 2 fds: multiple read locks,
conflicts between read and write locks, use of len==0 for queries.
Also tests for F_UNLCK F_OFD_GETLK extension.
[ jlayton: fix unlink() pathname in selftest ]
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kselftest@vger.kernel.org
Cc: linux-api@vger.kernel.org
Signed-off-by: Stas Sergeev <stsp2@yandex.ru>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Add a new testing topo bond_topo_2d1c.sh which is used more commonly.
Make bond_topo_3d1c.sh just source bond_topo_2d1c.sh and add the
extra link.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
