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Groups > linux.kernel > #1443560
| From | Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [RT PATCH 2/2] timers: wakeup all timer waiters without holding the base lock |
| Date | 2016-07-14 18:10 +0200 |
| Message-ID | <rURn4-3qz-29@gated-at.bofh.it> (permalink) |
| References | <rURn4-3qz-31@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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> --- 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 b3c3d3a6216f..716ef84a5d87 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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[RT PATCH 2/2] timers: wakeup all timer waiters without holding the base lock Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-07-14 18:10 +0200
Re: [RT PATCH 2/2] timers: wakeup all timer waiters without holding the base lock Steven Rostedt <rostedt@goodmis.org> - 2016-07-14 18:20 +0200
Re: [RT PATCH 2/2] timers: wakeup all timer waiters without holding the base lock Steven Rostedt <rostedt@goodmis.org> - 2016-07-14 19:30 +0200
Re: [RT PATCH 2/2] timers: wakeup all timer waiters without holding the base lock Sebastian Andrzej Siewior <bigeasy@linutronix.de> - 2016-07-14 19:30 +0200
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