relay: use plain timer instead of delayed work
relay doesn't need to use schedule_delayed_work() for waking readers when a simple timer will do. Signed-off-by: NTom Zanussi <zanussi@comcast.net> Cc: Satyam Sharma <satyam.sharma@gmail.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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