Commit-ID: 01783e0d452736d7deff1b920c5eccad67adc428
Gitweb: http://git.kernel.org/tip/01783e0d452736d7deff1b920c5eccad67adc428
Author: Geliang Tang <geliangtang@xxxxxxx>
AuthorDate: Sun, 15 Nov 2015 18:18:40 +0800
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
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@xxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/a5453fafd735affcf28e53a1d0a3d6965cb5dbb5.1447582547.git.geliangtang@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
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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