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>
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@ -1213,7 +1213,7 @@ static noinline void ep_destroy_wakeup_source(struct epitem *epi)
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{
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struct wakeup_source *ws = ep_wakeup_source(epi);
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rcu_assign_pointer(epi->ws, NULL);
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RCU_INIT_POINTER(epi->ws, NULL);
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/*
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* wait for ep_pm_stay_awake_rcu to finish, synchronize_rcu is
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