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authorKrishna Kumar <krkumar2@in.ibm.com>2009-12-08 22:26:13 +0000
committerDavid S. Miller <davem@davemloft.net>2009-12-23 14:13:28 -0800
commit12d50c46dc0f7fd2e625c4befaa5fa5740a7a594 (patch)
tree03e0179cd2d0e7d02f67623ee2760a5fe6c3fcac /net/ipv4/tcp_output.c
parent7ef8a2127a64d131c4dbe5b843e5708f6e75552b (diff)
downloadblackbird-op-linux-12d50c46dc0f7fd2e625c4befaa5fa5740a7a594.tar.gz
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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.c5
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.
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