The patch titled
Subject: epoll: use proper wake_up variant in ep_poll_callback
has been added to the -mm tree. Its filename is
epoll-use-proper-wake_up-variant-in-ep_poll_callback.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/epoll-use-proper-wake_up-variant-in-ep_poll_callback.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/epoll-use-proper-wake_up-variant-in-ep_poll_callback.patch
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------------------------------------------------------
From: Christoph Hellwig <hch@xxxxxx>
Subject: epoll: use proper wake_up variant in ep_poll_callback
We do not hold ep->wq->lock, so we should not use wake_up_locked on it.
Link: http://lkml.kernel.org/r/20171130142037.19339-3-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/eventpoll.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/eventpoll.c~epoll-use-proper-wake_up-variant-in-ep_poll_callback fs/eventpoll.c
--- a/fs/eventpoll.c~epoll-use-proper-wake_up-variant-in-ep_poll_callback
+++ a/fs/eventpoll.c
@@ -1190,7 +1190,7 @@ static int ep_poll_callback(wait_queue_e
break;
}
}
- wake_up_locked(&ep->wq);
+ wake_up(&ep->wq);
}
if (waitqueue_active(&ep->poll_wait))
pwake++;
_
Patches currently in -mm which might be from hch@xxxxxx are
sched-wait-assert-the-wait_queue_head-lock-is-held-in-__wake_up_common.patch
epoll-use-proper-wake_up-variant-in-ep_poll_callback.patch
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