net: sk_sleep() helper

Define a new function to return the waitqueue of a "struct sock".

static inline wait_queue_head_t *sk_sleep(struct sock *sk)
{
	return sk->sk_sleep;
}

Change all read occurrences of sk_sleep by a call to this function.

Needed for a future RCU conversion. sk_sleep wont be a field directly
available.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 4 deletions

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index cbddd0cb83f..6cffbc4da02 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -718,7 +718,7 @@ static int x25_wait_for_connection_establishment(struct sock *sk)
         DECLARE_WAITQUEUE(wait, current);
         int rc;
 
-        add_wait_queue_exclusive(sk->sk_sleep, &wait);
+        add_wait_queue_exclusive(sk_sleep(sk), &wait);
         for (;;) {
                 __set_current_state(TASK_INTERRUPTIBLE);
                 rc = -ERESTARTSYS;
@@ -738,7 +738,7 @@ static int x25_wait_for_connection_establishment(struct sock *sk)
                         break;
         }
         __set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
         return rc;
 }
 
@@ -838,7 +838,7 @@ static int x25_wait_for_data(struct sock *sk, long timeout)
         DECLARE_WAITQUEUE(wait, current);
         int rc = 0;
 
-        add_wait_queue_exclusive(sk->sk_sleep, &wait);
+        add_wait_queue_exclusive(sk_sleep(sk), &wait);
         for (;;) {
                 __set_current_state(TASK_INTERRUPTIBLE);
                 if (sk->sk_shutdown & RCV_SHUTDOWN)
@@ -858,7 +858,7 @@ static int x25_wait_for_data(struct sock *sk, long timeout)
                         break;
         }
         __set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
         return rc;
 }