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Groups > linux.kernel > #1490265
| From | Steven Rostedt <rostedt@goodmis.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH RT 2/9] timers: wakeup all timer waiters without holding the base lock |
| Date | 2016-09-23 17:40 +0200 |
| Message-ID | <skAJX-5CZ-13@gated-at.bofh.it> (permalink) |
| References | <skAAh-5zK-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
3.12.63-rt85-rc2 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/timer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/timer.c b/kernel/timer.c index 13d87cffb33e..3c3bc6bba12e 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1267,8 +1267,8 @@ 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 0/9] Linux 3.12.63-rt85-rc2 Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:30 +0200 [PATCH RT 8/9] fs/dcache: incremental fixup of the retry routine Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:30 +0200 [PATCH RT 6/9] net: add a lock around icmp_sk() Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:30 +0200 [PATCH RT 4/9] scsi/fcoe: Fix get_cpu()/put_cpu_light() imbalance in fcoe_recv_frame() Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:30 +0200 [PATCH RT 3/9] sched: lazy_preempt: avoid a warning in the !RT case Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:30 +0200 Re: [PATCH RT 0/9] Linux 3.12.63-rt85-rc2 Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:40 +0200 [PATCH RT 2/9] timers: wakeup all timer waiters without holding the base lock Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:40 +0200 [PATCH RT 5/9] net: add back the missing serialization in ip_send_unicast_reply() Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:40 +0200 [PATCH RT 7/9] fs/dcache: resched/chill only if we make no progress Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:40 +0200 [PATCH RT 1/9] timers: wakeup all timer waiters Steven Rostedt <rostedt@goodmis.org> - 2016-09-23 17:40 +0200
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