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Commit 01783e0d authored by Geliang Tang's avatar Geliang Tang Committed by Ingo Molnar
Browse files

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: default avatarGeliang Tang <geliangtang@163.com>
Signed-off-by: default avatarPeter 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: default avatarIngo Molnar <mingo@kernel.org>
parent 3ea94de1

kernel/sched/core.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

	}



	/*