Anna-Maria Gleixner dd934aa8ad hrtimer: Use irqsave/irqrestore around __run_hrtimer() ...

__run_hrtimer() is called with the hrtimer_cpu_base.lock held and
interrupts disabled. Before invoking the timer callback the base lock is
dropped, but interrupts stay disabled.

The upcoming support for softirq based hrtimers requires that interrupts
are enabled before the timer callback is invoked.

To avoid code duplication, take hrtimer_cpu_base.lock with
raw_spin_lock_irqsave(flags) at the call site and hand in the flags as
a parameter. So raw_spin_unlock_irqrestore() before the callback invocation
will either keep interrupts disabled in interrupt context or restore to
interrupt enabled state when called from softirq context.

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: keescook@chromium.org
Link: http://lkml.kernel.org/r/20171221104205.7269-26-anna-maria@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2018-01-16 03:00:47 +01:00

..

alarmtimer.c

alarmtimer: Ensure RTC module is not unloaded

2017-08-31 21:36:45 +02:00

clockevents.c

clockevents: Retry programming min delta up to 10 times

2017-10-19 16:29:15 +02:00

clocksource.c

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

hrtimer.c

hrtimer: Use irqsave/irqrestore around __run_hrtimer()

2018-01-16 03:00:47 +01:00

itimer.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

jiffies.c

jiffies: Revert bogus conversion of NSEC_PER_SEC to TICK_NSEC

2017-03-07 11:03:28 +01:00

Kconfig

sched/isolation: Make CONFIG_NO_HZ_FULL select CONFIG_CPU_ISOLATION

2017-12-18 13:46:42 +01:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ntp_internal.h

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

ntp.c

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

posix-clock.c

posix-timers: Prevent UB from shifting negative signed value

2018-01-04 14:57:10 +01:00

posix-cpu-timers.c

posix-cpu-timers: Make set_process_cpu_timer() more robust

2018-01-14 20:50:59 +01:00

posix-stubs.c

posix-stubs: Use get_timespec64() and put_timespec64()

2017-10-17 17:22:27 +02:00

posix-timers.c

posix-timer: Properly check sigevent->sigev_notify

2017-12-15 11:08:40 +01:00

posix-timers.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sched_clock.c

timers, sched_clock: Update timeout for clock wrap

2017-03-23 12:30:27 -07:00

test_udelay.c

time: Avoid timespec in udelay_test

2016-06-20 12:47:26 -07:00

tick-broadcast-hrtimer.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

tick-broadcast.c

tick/broadcast: Make tick_broadcast_setup_oneshot() static

2017-06-12 18:56:01 +02:00

tick-common.c

ktime: Cleanup ktime_set() usage

2016-12-25 17:21:22 +01:00

tick-internal.h

hrtimer: Unify remote enqueue handling

2018-01-16 02:53:58 +01:00

tick-oneshot.c

clockevents: Update clockevents device next_event on stop

2017-11-01 18:20:17 +01:00

tick-sched.c

hrtimer: Optimize the hrtimer code by using static keys for migration_enable/nohz_active

2018-01-16 02:35:44 +01:00

tick-sched.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

time.c

Merge branch 'fortglx/4.15/time' of https://git.linaro.org/people/john.stultz/linux into timers/core

2017-10-31 23:17:28 +01:00

timeconst.bc

time: Introduce jiffies64_to_nsecs()

2017-02-01 09:13:45 +01:00

timeconv.c

time: Add time64_to_tm()

2016-06-20 12:47:15 -07:00

timecounter.c

clocksource: Use a plain u64 instead of cycle_t

2016-12-25 11:04:12 +01:00

timekeeping_debug.c

PM / timekeeping: Print debug messages when requested

2017-07-23 00:03:43 +02:00

timekeeping_internal.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

timekeeping.c

timekeeping: Remove CONFIG_GENERIC_TIME_VSYSCALL_OLD

2017-11-14 11:20:25 +01:00

timekeeping.h

Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2017-11-13 17:56:58 -08:00

timer_list.c

timer/debug: Change /proc/timer_list from 0444 to 0400

2017-11-13 16:04:06 +01:00

timer.c

hrtimer: Unify remote enqueue handling

2018-01-16 02:53:58 +01:00