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| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2007-08-10 14:31:21 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:48:00 -0700 |
| commit | 13dae426318aae073028a4b3bd493104a991e800 (patch) | |
| tree | 29c2265378c70c9d771c8127d960455e8d64dc27 | |
| parent | e60402d0a909ca2e6e2fbdf9ed004ef0fae36d33 (diff) | |
| download | blackbird-op-linux-13dae426318aae073028a4b3bd493104a991e800.tar.gz blackbird-op-linux-13dae426318aae073028a4b3bd493104a991e800.zip | |
[TCP]: Update comment about highest_sack validity
This stale info came from the original idea, which proved to be
unnecessarily complex, sacked_out > 0 is easy to do and that when
it's going to be needed anyway (it _can_ be valid also when
sacked_out == 0 but there's not going to be a guarantee about it
for now).
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/tcp.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 1f12fa0b67d7..f8cf090e8f49 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -332,7 +332,8 @@ struct tcp_sock { struct tcp_sack_block_wire recv_sack_cache[4]; - u32 highest_sack; /* Start seq of globally highest revd SACK (valid only in slowpath) */ + u32 highest_sack; /* Start seq of globally highest revd SACK + * (validity guaranteed only if sacked_out > 0) */ /* from STCP, retrans queue hinting */ struct sk_buff* lost_skb_hint; |
