diff options
| author | Krishna Kumar <krkumar2@in.ibm.com> | 2009-12-08 22:26:13 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-23 14:13:28 -0800 |
| commit | 12d50c46dc0f7fd2e625c4befaa5fa5740a7a594 (patch) | |
| tree | 03e0179cd2d0e7d02f67623ee2760a5fe6c3fcac /net/ipv4/tcp_output.c | |
| parent | 7ef8a2127a64d131c4dbe5b843e5708f6e75552b (diff) | |
| download | blackbird-op-linux-12d50c46dc0f7fd2e625c4befaa5fa5740a7a594.tar.gz blackbird-op-linux-12d50c46dc0f7fd2e625c4befaa5fa5740a7a594.zip | |
tcp: Remove check in __tcp_push_pending_frames
tcp_push checks tcp_send_head and calls __tcp_push_pending_frames,
which again checks tcp_send_head, and this unnecessary check is
done for every other caller of __tcp_push_pending_frames.
Remove tcp_send_head check in __tcp_push_pending_frames and add
the check to tcp_push_pending_frames. Other functions call
__tcp_push_pending_frames only when tcp_send_head would evaluate
to true.
Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 383ce237640f..12b2af36eab8 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1794,11 +1794,6 @@ static int tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle, void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss, int nonagle) { - struct sk_buff *skb = tcp_send_head(sk); - - if (!skb) - return; - /* If we are closed, the bytes will have to remain here. * In time closedown will finish, we empty the write queue and * all will be happy. |
