linux_dsm_epyc7002/kernel/time
Ahmed S. Darwish af5a06b582 hrtimer: Use sequence counter with associated raw spinlock
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.

Use the new seqcount_raw_spinlock_t data type, which allows to associate
a raw spinlock with the sequence counter. This enables lockdep to verify
that the raw spinlock used for writer serialization is held when the
write side critical section is entered.

If lockdep is disabled this lock association is compiled out and has
neither storage size nor runtime overhead.

Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200720155530.1173732-25-a.darwish@linutronix.de
2020-07-29 16:14:29 +02:00
..
alarmtimer.c alarmtimer: Make alarmtimer_get_rtcdev() a stub when CONFIG_RTC_CLASS=n 2020-01-24 21:03:53 +01:00
clockevents.c
clocksource.c clocksource: Remove obsolete ifdef 2020-06-09 16:36:47 +02:00
hrtimer.c hrtimer: Use sequence counter with associated raw spinlock 2020-07-29 16:14:29 +02:00
itimer.c y2038: rename itimerval to __kernel_old_itimerval 2019-12-18 18:07:33 +01:00
jiffies.c timekeeping: Split jiffies seqlock 2020-03-21 16:00:23 +01:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile ns: Introduce Time Namespace 2020-01-14 12:20:48 +01:00
namespace.c nsproxy: add struct nsset 2020-05-09 13:57:12 +02:00
ntp_internal.h
ntp.c ntp/y2038: Remove incorrect time_t truncation 2019-11-12 08:13:44 +01:00
posix-clock.c posix-clocks: Rename the clock_get() callback to clock_get_timespec() 2020-01-14 12:20:49 +01:00
posix-cpu-timers.c posix-cpu-timers: Replace __get_task_for_clock with pid_for_clock 2020-04-29 08:14:41 -05:00
posix-stubs.c posix-timers: Make clock_nanosleep() time namespace aware 2020-01-14 12:20:55 +01:00
posix-timers.c posix-timers: Pass lockdep expression to RCU lists 2020-02-17 20:12:19 +01:00
posix-timers.h posix-clocks: Introduce clock_get_ktime() callback 2020-01-14 12:20:51 +01:00
sched_clock.c time/sched_clock: Expire timer in hardirq context 2020-03-19 09:45:08 +01:00
test_udelay.c
tick-broadcast-hrtimer.c tick: broadcast-hrtimer: Fix a race in bc_set_next 2019-09-27 14:45:55 +02:00
tick-broadcast.c
tick-common.c timekeeping: Split jiffies seqlock 2020-03-21 16:00:23 +01:00
tick-internal.h
tick-oneshot.c
tick-sched.c lockdep: Annotate irq_work 2020-03-21 16:00:24 +01:00
tick-sched.h
time.c y2038: remove unused time32 interfaces 2020-02-21 11:22:15 -08:00
timeconst.bc
timeconv.c
timecounter.c
timekeeping_debug.c
timekeeping_internal.h
timekeeping.c timekeeping: Use sequence counter with associated raw spinlock 2020-07-29 16:14:27 +02:00
timekeeping.h timekeeping: Split jiffies seqlock 2020-03-21 16:00:23 +01:00
timer_list.c timer_list: Guard procfs specific code 2019-06-23 00:08:52 +02:00
timer.c timer: Fix wheel index calculation on last level 2020-07-17 21:44:05 +02:00
vsyscall.c lib/vdso: Avoid highres update if clocksource is not VDSO capable 2020-02-17 20:12:17 +01:00