epoll: move eavail next to the list_empty_careful check

This is a no-op change and simply to make the code more coherent.

Link: https://lkml.kernel.org/r/20201106231635.3528496-5-soheil.kdev@gmail.comSigned-off-by: NSoheil Hassas Yeganeh <soheil@google.com>
Suggested-by: NLinus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: NEric Dumazet <edumazet@google.com>
Reviewed-by: NWillem de Bruijn <willemb@google.com>
Reviewed-by: NKhazhismel Kumykov <khazhy@google.com>
Cc: Guantao Liu <guantaol@google.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/eventpoll.c

@@ -1828,6 +1828,7 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
 		if (!eavail)
 			timed_out = !schedule_hrtimeout_range(to, slack,
 							      HRTIMER_MODE_ABS);
+		__set_current_state(TASK_RUNNING);
 
 		/*
 		 * We were woken up, thus go and try to harvest some events.
@@ -1837,8 +1838,6 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
 		eavail = 1;
 	} while (0);
 
-	__set_current_state(TASK_RUNNING);
-
 	if (!list_empty_careful(&wait.entry)) {
 		write_lock_irq(&ep->lock);
 		/*