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, 6 insertions, 6 deletions

diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 2db6a9f75913..023ba820236f 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -536,7 +536,7 @@ static int llc_ui_wait_for_disc(struct sock *sk, long timeout)
         int rc = 0;
 
         while (1) {
-                prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
+                prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
                 if (sk_wait_event(sk, &timeout, sk->sk_state == TCP_CLOSE))
                         break;
                 rc = -ERESTARTSYS;
@@ -547,7 +547,7 @@ static int llc_ui_wait_for_disc(struct sock *sk, long timeout)
                         break;
                 rc = 0;
         }
-        finish_wait(sk->sk_sleep, &wait);
+        finish_wait(sk_sleep(sk), &wait);
         return rc;
 }
 
@@ -556,13 +556,13 @@ static int llc_ui_wait_for_conn(struct sock *sk, long timeout)
         DEFINE_WAIT(wait);
 
         while (1) {
-                prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
+                prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
                 if (sk_wait_event(sk, &timeout, sk->sk_state != TCP_SYN_SENT))
                         break;
                 if (signal_pending(current) || !timeout)
                         break;
         }
-        finish_wait(sk->sk_sleep, &wait);
+        finish_wait(sk_sleep(sk), &wait);
         return timeout;
 }
 
@@ -573,7 +573,7 @@ static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout)
         int rc;
 
         while (1) {
-                prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
+                prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
                 rc = 0;
                 if (sk_wait_event(sk, &timeout,
                                   (sk->sk_shutdown & RCV_SHUTDOWN) ||
@@ -588,7 +588,7 @@ static int llc_ui_wait_for_busy_core(struct sock *sk, long timeout)
                 if (!timeout)
                         break;
         }
-        finish_wait(sk->sk_sleep, &wait);
+        finish_wait(sk_sleep(sk), &wait);
         return rc;
 }