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, 2 insertions, 2 deletions

diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index c060095b27ce..c432d76f415e 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -65,7 +65,7 @@ static void rxrpc_write_space(struct sock *sk)
         read_lock(&sk->sk_callback_lock);
         if (rxrpc_writable(sk)) {
                 if (sk_has_sleeper(sk))
-                        wake_up_interruptible(sk->sk_sleep);
+                        wake_up_interruptible(sk_sleep(sk));
                 sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
         }
         read_unlock(&sk->sk_callback_lock);
@@ -589,7 +589,7 @@ static unsigned int rxrpc_poll(struct file *file, struct socket *sock,
         unsigned int mask;
         struct sock *sk = sock->sk;
 
-        sock_poll_wait(file, sk->sk_sleep, wait);
+        sock_poll_wait(file, sk_sleep(sk), wait);
         mask = 0;
 
         /* the socket is readable if there are any messages waiting on the Rx