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sched/core: Use list_is_singular() in sched_can_stop_tick()

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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>
This commit is contained in:
Geliang Tang 2015-11-15 18:18:40 +08:00 committed by Ingo Molnar
parent 3ea94de15c
commit 01783e0d45
1 changed files with 1 additions and 1 deletions
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2
kernel/sched/core.c
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@ -731,7 +731,7 @@ bool sched_can_stop_tick(void)
if (current->policy == SCHED_RR) {
struct sched_rt_entity *rt_se = &current->rt;
return rt_se->run_list.prev == rt_se->run_list.next;
return list_is_singular(&rt_se->run_list);
}
/*