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net: sk_sleep() helper

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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>
This commit is contained in:
Eric Dumazet
2010-04-20 13:03:51 +00:00
committed by David S. Miller
parent ab9304717f
commit aa39514516
46 changed files with 208 additions and 204 deletions
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10
net/unix/af_unix.c
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@@ -316,7 +316,7 @@ static void unix_write_space(struct sock *sk)
read_lock(&sk->sk_callback_lock);
if (unix_writable(sk)) {
if (sk_has_sleeper(sk))
wake_up_interruptible_sync(sk->sk_sleep);
wake_up_interruptible_sync(sk_sleep(sk));
sk_wake_async(sk, SOCK_WAKE_SPACE, POLL_OUT);
}
read_unlock(&sk->sk_callback_lock);
@@ -1736,7 +1736,7 @@ static long unix_stream_data_wait(struct sock *sk, long timeo)
unix_state_lock(sk);
for (;;) {
prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
if (!skb_queue_empty(&sk->sk_receive_queue) ||
sk->sk_err ||
@@ -1752,7 +1752,7 @@ static long unix_stream_data_wait(struct sock *sk, long timeo)
clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
}
finish_wait(sk->sk_sleep, &wait);
finish_wait(sk_sleep(sk), &wait);
unix_state_unlock(sk);
return timeo;
}
@@ -1991,7 +1991,7 @@ static unsigned int unix_poll(struct file *file, struct socket *sock, poll_table
struct sock *sk = sock->sk;
unsigned int mask;
sock_poll_wait(file, sk->sk_sleep, wait);
sock_poll_wait(file, sk_sleep(sk), wait);
mask = 0;
/* exceptional events? */
@@ -2028,7 +2028,7 @@ static unsigned int unix_dgram_poll(struct file *file, struct socket *sock,
struct sock *sk = sock->sk, *other;
unsigned int mask, writable;
sock_poll_wait(file, sk->sk_sleep, wait);
sock_poll_wait(file, sk_sleep(sk), wait);
mask = 0;
/* exceptional events? */