| From stable-bounces@linux.kernel.org Tue Apr 10 13:38:09 2007 |
| From: John Heffner <jheffner@psc.edu> |
| Date: Tue, 10 Apr 2007 13:36:40 -0700 (PDT) |
| Subject: Fix TCP receiver side SWS handling. |
| To: stable@kernel.org |
| Cc: bunk@stusta.de |
| Message-ID: <20070410.133640.10297825.davem@davemloft.net> |
| |
| From: John Heffner <jheffner@psc.edu> |
| |
| [TCP]: Do receiver-side SWS avoidance for rcvbuf < MSS. |
| |
| Signed-off-by: John Heffner <jheffner@psc.edu> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| net/ipv4/tcp_output.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| --- a/net/ipv4/tcp_output.c |
| +++ b/net/ipv4/tcp_output.c |
| @@ -1607,6 +1607,9 @@ u32 __tcp_select_window(struct sock *sk) |
| */ |
| if (window <= free_space - mss || window > free_space) |
| window = (free_space/mss)*mss; |
| + else if (mss == full_space && |
| + free_space > window + full_space/2) |
| + window = free_space; |
| } |
| |
| return window; |
