commit aa395145165cb06a0d0885221bbe0ce4a564391d
author Eric Dumazet <eric.dumazet@gmail.com> Tue Apr 20 13:03:51 2010 +0000
committer David S. Miller <davem@davemloft.net> Tue Apr 20 16:37:13 2010 -0700
tree 118b0403621f10db8dc3dbf12079f9af5b19e05d
parent ab9304717f7624c41927f442e6b6d418b2d8b3e4

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>

net/llc/af_llc.c

diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 2db6a9f..023ba82 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -536,7 +536,7 @@
 	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 @@
 			break;
 		rc = 0;
 	}
-	finish_wait(sk->sk_sleep, &wait);
+	finish_wait(sk_sleep(sk), &wait);
 	return rc;
 }
 
@@ -556,13 +556,13 @@
 	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 @@
 	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 @@
 		if (!timeout)
 			break;
 	}
-	finish_wait(sk->sk_sleep, &wait);
+	finish_wait(sk_sleep(sk), &wait);
 	return rc;
 }