tun: remove unnecessary memory barrier

clktmr · davem330 · commit ecef67cb10db · 2019-02-25T14:27:21.000-08:00
Replace set_current_state with __set_current_state since no memory
barrier is needed at this point.

Signed-off-by: Timur Celik &lt;mail@timurcelik.de&gt;
Reviewed-by: Eric Dumazet &lt;edumazet@google.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
@@ -2185,7 +2185,7 @@ static void *tun_ring_recv(struct tun_file *tfile, int noblock, int *err)
 		schedule();
 	}
 
-	set_current_state(TASK_RUNNING);
+	__set_current_state(TASK_RUNNING);
 	remove_wait_queue(&tfile->wq.wait, &wait);
 
 out:

Original file line number	Diff line number	Diff line change
`@@ -2185,7 +2185,7 @@ static void tun_ring_recv(struct tun_file tfile, int noblock, int *err)`
`2185`	`2185`	`schedule();`
`2186`	`2186`	`}`
`2187`	`2187`
`2188`		`- set_current_state(TASK_RUNNING);`
	`2188`	`+ __set_current_state(TASK_RUNNING);`
`2189`	`2189`	`remove_wait_queue(&tfile->wq.wait, &wait);`
`2190`	`2190`
`2191`	`2191`	`out:`