linux-kernel - [PATCH 4/8] epoll: move eavail next to the list_empty

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Date:   Fri,  6 Nov 2020 18:16:31 -0500
From:   Soheil Hassas Yeganeh <soheil.kdev@...il.com>
To:     torvalds@...ux-foundation.org, viro@...iv.linux.org.uk,
        linux-fsdevel@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
        dave@...olabs.net, edumazet@...gle.com, willemb@...gle.com,
        khazhy@...gle.com, guantaol@...gle.com,
        Soheil Hassas Yeganeh <soheil@...gle.com>
Subject: [PATCH 4/8] epoll: move eavail next to the list_empty_careful check

From: Soheil Hassas Yeganeh <soheil@...gle.com>

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

Suggested-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Soheil Hassas Yeganeh <soheil@...gle.com>
Reviewed-by: Eric Dumazet <edumazet@...gle.com>
Reviewed-by: Willem de Bruijn <willemb@...gle.com>
Reviewed-by: Khazhismel Kumykov <khazhy@...gle.com>
---
 fs/eventpoll.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index ed9deeab2488..5226b0cb1098 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1913,6 +1913,7 @@ 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.
@@ -1922,8 +1923,6 @@ 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);
 		/*
-- 
2.29.1.341.ge80a0c044ae-goog