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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>
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@ -731,7 +731,7 @@ bool sched_can_stop_tick(void)
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if (current->policy == SCHED_RR) {
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struct sched_rt_entity *rt_se = ¤t->rt;
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return rt_se->run_list.prev == rt_se->run_list.next;
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return list_is_singular(&rt_se->run_list);
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}
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/*
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