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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
Download patch file Download diff file Expand all files Collapse all files

16
net/core/stream.c
View file

@ -32,8 +32,8 @@ void sk_stream_write_space(struct sock *sk)
if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk) && sock) {
clear_bit(SOCK_NOSPACE, &sock->flags);
if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
wake_up_interruptible_poll(sk->sk_sleep, POLLOUT |
if (sk_sleep(sk) && waitqueue_active(sk_sleep(sk)))
wake_up_interruptible_poll(sk_sleep(sk), POLLOUT |
POLLWRNORM | POLLWRBAND);
if (sock->fasync_list && !(sk->sk_shutdown & SEND_SHUTDOWN))
sock_wake_async(sock, SOCK_WAKE_SPACE, POLL_OUT);
@ -66,13 +66,13 @@ int sk_stream_wait_connect(struct sock *sk, long *timeo_p)
if (signal_pending(tsk))
return sock_intr_errno(*timeo_p);
prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
sk->sk_write_pending++;
done = sk_wait_event(sk, timeo_p,
!sk->sk_err &&
!((1 << sk->sk_state) &
~(TCPF_ESTABLISHED | TCPF_CLOSE_WAIT)));
finish_wait(sk->sk_sleep, &wait);
finish_wait(sk_sleep(sk), &wait);
sk->sk_write_pending--;
} while (!done);
return 0;
@ -96,13 +96,13 @@ void sk_stream_wait_close(struct sock *sk, long timeout)
DEFINE_WAIT(wait);
do {
prepare_to_wait(sk->sk_sleep, &wait,
prepare_to_wait(sk_sleep(sk), &wait,
TASK_INTERRUPTIBLE);
if (sk_wait_event(sk, &timeout, !sk_stream_closing(sk)))
break;
} while (!signal_pending(current) && timeout);
finish_wait(sk->sk_sleep, &wait);
finish_wait(sk_sleep(sk), &wait);
}
}
@ -126,7 +126,7 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
while (1) {
set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE);
prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE);
if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN))
goto do_error;
@ -157,7 +157,7 @@ int sk_stream_wait_memory(struct sock *sk, long *timeo_p)
*timeo_p = current_timeo;
}
out:
finish_wait(sk->sk_sleep, &wait);
finish_wait(sk_sleep(sk), &wait);
return err;
do_error: