From dca7cd43ce0933d8c787cb099ba7d706ea9dce9f Mon Sep 17 00:00:00 2001
From: Timur Celik <mail@timurcelik.de>
Date: Mon, 25 Feb 2019 21:13:13 +0100
Subject: [PATCH] tun: remove unnecessary memory barrier

[ Upstream commit ecef67cb10db7b83b3b71c61dbb29aa070ab0112 ]

Replace set_current_state with __set_current_state since no memory
barrier is needed at this point.

Signed-off-by: Timur Celik <mail@timurcelik.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/tun.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 7e082df135dc..24cc94453d38 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1489,7 +1489,7 @@ static struct sk_buff *tun_ring_recv(struct tun_file *tfile, int noblock,
 		schedule();
 	}
 
-	set_current_state(TASK_RUNNING);
+	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&tfile->wq.wait, &wait);
 
 out: