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epoll: cleanup: use RCU_INIT_POINTER when nulling 

It is always safe to use RCU_INIT_POINTER to NULL a pointer.  This results
in slightly smaller/faster code.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Eric Wong 2013-04-30 15:27:43 -07:00 committed by Linus Torvalds
parent 450d89ec0a
commit d6d67e7231
1 changed files with 1 additions and 1 deletions
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2
fs/eventpoll.c
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@ -1213,7 +1213,7 @@ static noinline void ep_destroy_wakeup_source(struct epitem *epi)
{
struct wakeup_source *ws = ep_wakeup_source(epi);
rcu_assign_pointer(epi->ws, NULL);
RCU_INIT_POINTER(epi->ws, NULL);
/*
* wait for ep_pm_stay_awake_rcu to finish, synchronize_rcu is