diff options
| author |   Eric Dumazet <edumazet@google.com> | 2013-07-22 20:26:31 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-07-24 17:54:48 -0700 |
| commit | 64dc61306ce7da370833289739e2f52dfc6b37ba (patch) | |
| tree | 3d04f970a54863e025f13c7f9de18c221e16b7d7 /net/ipv4/tcp.c | |
| parent | net: sctp: trivial: add uapi/linux/sctp.h into maintainers (diff) | |
| download | linux-dev-64dc61306ce7da370833289739e2f52dfc6b37ba.tar.xz linux-dev-64dc61306ce7da370833289739e2f52dfc6b37ba.zip | |
net: add sk_stream_is_writeable() helper
Several call sites use the hardcoded following condition :
sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)
Lets use a helper because TCP_NOTSENT_LOWAT support will change this
condition for TCP sockets.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 5423223e93c2..5eca9060bb8e 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -499,7 +499,7 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) mask |= POLLIN | POLLRDNORM; if (!(sk->sk_shutdown & SEND_SHUTDOWN)) { - if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)) { + if (sk_stream_is_writeable(sk)) { mask |= POLLOUT | POLLWRNORM; } else { /* send SIGIO later */ set_bit(SOCK_ASYNC_NOSPACE, @@ -510,7 +510,7 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) * wspace test but before the flags are set, * IO signal will be lost. */ - if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk)) + if (sk_stream_is_writeable(sk)) mask |= POLLOUT | POLLWRNORM; } } else |