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| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2009-03-14 14:23:05 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-15 20:09:54 -0700 |
| commit | 0c54b85f2828128274f319a1eb3ce7f604fe2a53 (patch) | |
| tree | 8ff84b9aa9cd4775f244c2421e11adfbd206a7bf /include/linux/tcp.h | |
| parent | 72211e90501f954f586481c25521c3724cda3cc7 (diff) | |
| download | op-kernel-dev-0c54b85f2828128274f319a1eb3ce7f604fe2a53.zip op-kernel-dev-0c54b85f2828128274f319a1eb3ce7f604fe2a53.tar.gz | |
tcp: simplify tcp_current_mss
There's very little need for most of the callsites to get
tp->xmit_goal_size updated. That will cost us divide as is,
so slice the function in two. Also, the only users of the
tp->xmit_goal_size are directly behind tcp_current_mss(),
so there's no need to store that variable into tcp_sock
at all! The drop of xmit_goal_size currently leaves 16-bit
hole and some reorganization would again be necessary to
change that (but I'm aiming to fill that hole with u16
xmit_goal_size_segs to cache the results of the remaining
divide to get that tso on regression).
Bring xmit_goal_size parts into tcp.c
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/tcp.h')
| -rw-r--r-- | include/linux/tcp.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 4b86ad7..ad2021c 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -248,7 +248,6 @@ struct tcp_sock { /* inet_connection_sock has to be the first member of tcp_sock */ struct inet_connection_sock inet_conn; u16 tcp_header_len; /* Bytes of tcp header to send */ - u16 xmit_size_goal; /* Goal for segmenting output packets */ /* * Header prediction flags |
