Messages in this thread Patch in this message | | | Date | Mon, 23 Nov 2015 08:21:09 -0800 | From | tip-bot for Geliang Tang <> | Subject | [tip:sched/core] sched/core: Use list_is_singular() in sched_can_stop_tick() |
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Commit-ID: 01783e0d452736d7deff1b920c5eccad67adc428 Gitweb: http://git.kernel.org/tip/01783e0d452736d7deff1b920c5eccad67adc428 Author: Geliang Tang <geliangtang@163.com> AuthorDate: Sun, 15 Nov 2015 18:18:40 +0800 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Mon, 23 Nov 2015 09:48:17 +0100
sched/core: Use list_is_singular() in sched_can_stop_tick()
Use list_is_singular() to check if run_list has only one entry.
Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/a5453fafd735affcf28e53a1d0a3d6965cb5dbb5.1447582547.git.geliangtang@163.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- kernel/sched/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 1b7cb5e..5b420d2 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -731,7 +731,7 @@ bool sched_can_stop_tick(void) if (current->policy == SCHED_RR) { struct sched_rt_entity *rt_se = ¤t->rt; - return rt_se->run_list.prev == rt_se->run_list.next; + return list_is_singular(&rt_se->run_list); } /*
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