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Groups > linux.kernel > #1489595
| From | Steven Rostedt <rostedt@goodmis.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH RT 02/10] timers: wakeup all timer waiters without holding the base lock |
| Date | 2016-09-23 00:00 +0200 |
| Message-ID | <skkca-3ii-21@gated-at.bofh.it> (permalink) |
| References | <skk2u-3f3-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
4.4.21-rt31-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> There should be no need to hold the base lock during the wakeup. There should be no boosting involved, the wakeup list has its own lock so it should be safe to do this without the lock. Cc: stable-rt@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- kernel/time/timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/time/timer.c b/kernel/time/timer.c index d5212147ae19..603699ff9411 100644 --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -1313,8 +1313,8 @@ static inline void __run_timers(struct tvec_base *base) } } } - wakeup_timer_waiters(base); spin_unlock_irq(&base->lock); + wakeup_timer_waiters(base); } #ifdef CONFIG_NO_HZ_COMMON -- 2.8.1
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[PATCH RT 00/10] Linux 4.4.21-rt31-rc1 Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 00:00 +0200 [PATCH RT 02/10] timers: wakeup all timer waiters without holding the base lock Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 00:00 +0200 [PATCH RT 03/10] sched: lazy_preempt: avoid a warning in the !RT case Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 00:00 +0200
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