Commit-ID: cedce3e730833d26a37826a96e1905b6ef387df9 Gitweb: http://git.kernel.org/tip/cedce3e730833d26a37826a96e1905b6ef387df9 Author: Kirill Tkhai <[email protected]> AuthorDate: Thu, 4 Jul 2013 22:48:20 +0400 Committer: Ingo Molnar <[email protected]> CommitDate: Fri, 12 Jul 2013 13:54:03 +0200
sched/__wake_up_sync_key(): Fix nr_exclusive tasks which lead to WF_SYNC clearing Only one task can replace the waker. Signed-off-by: Kirill Tkhai <[email protected]> CC: Steven Rostedt <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- 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 0d8eb45..f737871 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2660,7 +2660,7 @@ 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
