The only one task can replace waker.
Signed-off-by: Kirill Tkhai <tk...@yandex.ru>
CC: Steven Rostedt <rost...@goodmis.org>
CC: Ingo Molnar <mi...@redhat.com>
CC: Peter Zijlstra <pet...@infradead.org>
---
kernel/sched/core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9d06ad6..4ff7404 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2658,7 +2658,7 @@ void __wake_up_sync_key(wait_queue_head_t *q, unsigned
int mode,
if (unlikely(!q))
return;
- if (unlikely(!nr_exclusive))
+ if (unlikely(nr_exclusive != 1))
wake_flags = 0;
spin_lock_irqsave(&q->lock, flags);
--
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