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1d4199cbbe
twx-linux/kernel/time
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Thomas Gleixner 1d4199cbbe timers: Add missing READ_ONCE() in __run_timer_base() 
__run_timer_base() checks base::next_expiry without holding
base::lock. That can race with a remote CPU updating next_expiry under the
lock. This is an intentional and harmless data race, but lacks a
READ_ONCE(), so KCSAN complains about this.

Add the missing READ_ONCE(). All other places are covered already.

Fixes: 79f8b28e85f8 ("timers: Annotate possible non critical data race of next_expiry")
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/all/87a5emyqk0.ffs@tglx
Closes: https://lore.kernel.org/oe-lkp/202410301205.ef8e9743-lkp@intel.com
2024-10-31 11:45:01 +01:00
..
alarmtimer.c posix-timers: Add proper state tracking 2024-10-29 11:43:19 +01:00
clockevents.c clockevents: Shutdown and unregister current clockevents at CPUHP_AP_TICK_DYING 2024-10-31 10:41:42 +01:00
clocksource-wdtest.c time: Add MODULE_DESCRIPTION() to time test modules 2024-06-03 11:18:50 +02:00
clocksource.c clocksource: Remove unused clocksource_change_rating 2024-10-10 21:03:10 +02:00
hrtimer.c timers: Move *sleep*() and timeout functions into a separate file 2024-10-16 00:36:46 +02:00
itimer.c signal: Confine POSIX_TIMERS properly 2024-10-29 11:43:18 +01:00
jiffies.c clocksource: Make clocksource watchdog test safe for slow-HZ systems 2021-08-28 17:01:32 +02:00
Kconfig clocksource: Make the int help prompt unit readable in ncurses 2024-04-30 00:12:22 +02:00
Makefile timers: Move *sleep*() and timeout functions into a separate file 2024-10-16 00:36:46 +02:00
namespace.c vdso/timens: Refactor copy-pasted find_timens_vvar_page() helper into one copy 2022-12-01 11:35:40 +01:00
ntp_internal.h ntp: Make sure RTC is synchronized when time goes backwards 2024-09-10 13:50:40 +02:00
ntp.c ntp: Move pps monitors into ntp_data 2024-10-02 16:53:41 +02:00
posix-clock.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
posix-cpu-timers.c posix-timers: Add proper state tracking 2024-10-29 11:43:19 +01:00
posix-stubs.c posix-timers: Get rid of [COMPAT_]SYS_NI() uses 2023-12-20 21:30:27 -08:00
posix-timers.c posix-timers: Add proper state tracking 2024-10-29 11:43:19 +01:00
posix-timers.h posix-timers: Add proper state tracking 2024-10-29 11:43:19 +01:00
sched_clock.c time/sched_clock: Provide sched_clock_noinstr() 2023-06-05 21:11:04 +02:00
sleep_timeout.c timers: Add a warning to usleep_range_state() for wrong order of arguments 2024-10-16 00:36:47 +02:00
test_udelay.c time: Add MODULE_DESCRIPTION() to time test modules 2024-06-03 11:18:50 +02:00
tick-broadcast-hrtimer.c time/tick-broadcast: Remove RCU_NONIDLE() usage 2023-01-13 11:48:16 +01:00
tick-broadcast.c tick/broadcast: Move per CPU pointer access into the atomic section 2024-07-31 12:37:43 +02:00
tick-common.c tick/nohz_full: Don't abuse smp_call_function_single() in tick_setup_device() 2024-06-10 20:18:13 +02:00
tick-internal.h clockevents: Shutdown and unregister current clockevents at CPUHP_AP_TICK_DYING 2024-10-31 10:41:42 +01:00
tick-legacy.c
tick-oneshot.c time: Fix various kernel-doc problems 2023-01-03 11:07:58 +01:00
tick-sched.c tick: Remove now unneeded low-res tick stop on CPUHP_AP_TICK_DYING 2024-10-31 10:41:42 +01:00
tick-sched.h tick/sched: Fix struct tick_sched doc warnings 2024-04-01 10:36:35 +02:00
time_test.c time: Add MODULE_DESCRIPTION() to time test modules 2024-06-03 11:18:50 +02:00
time.c time: Fix references to _msecs_to_jiffies() handling of values 2024-10-25 19:50:10 +02:00
timeconst.bc
timeconv.c time: Improve performance of time64_to_tm() 2021-06-24 11:51:59 +02:00
timecounter.c time/timecounter: Mark 1st argument of timecounter_cyc2time() as const 2021-04-16 21:03:50 +02:00
timekeeping_debug.c timekeeping: Add percpu counter for tracking floor swap events 2024-10-06 20:56:07 +02:00
timekeeping_internal.h timekeeping: Encapsulate locking/unlocking of timekeeper_lock 2024-10-25 19:49:13 +02:00
timekeeping.c timekeeping: Merge timekeeping_update_staged() and timekeeping_update() 2024-10-25 19:49:16 +02:00
timekeeping.h
timer_list.c tick: Split nohz and highres features from nohz_mode 2024-02-26 11:37:32 +01:00
timer_migration.c timers/migration: Fix grammar in comment 2024-07-22 18:03:34 +02:00
timer_migration.h timers/migration: Rename childmask by groupmask to make naming more obvious 2024-07-22 18:03:34 +02:00
timer.c timers: Add missing READ_ONCE() in __run_timer_base() 2024-10-31 11:45:01 +01:00
vsyscall.c timekeeping: Encapsulate locking/unlocking of timekeeper_lock 2024-10-25 19:49:13 +02:00