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| author | Vlad Yasevich <vladislav.yasevich@hp.com> | 2010-04-30 22:41:09 -0400 |
|---|---|---|
| committer | Vlad Yasevich <vladislav.yasevich@hp.com> | 2010-04-30 22:41:09 -0400 |
| commit | ae19c54866450f6c6f79223ca7d37965859a54e1 (patch) | |
| tree | 4da39a450974841532148b15b15de182c8e40dac /net/sctp/output.c | |
| parent | d598b166ced20d9b9281ea3527c0e18405ddb803 (diff) | |
| download | linux-ae19c54866450f6c6f79223ca7d37965859a54e1.tar.gz linux-ae19c54866450f6c6f79223ca7d37965859a54e1.tar.bz2 linux-ae19c54866450f6c6f79223ca7d37965859a54e1.zip | |
sctp: remove 'resent' bit from the chunk
The 'resent' bit is used to make sure that we don't update
rto estimate based on retransmitted chunks. However, we already
have the 'rto_pending' bit that we test when need to update rto,
so 'resent' bit is just extra. Additionally, we currently have
a bug in that we always set a 'resent' bit and thus rto estimate
is only updated by Heartbeats.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Diffstat (limited to 'net/sctp/output.c')
| -rw-r--r-- | net/sctp/output.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c index fad261d41ec2..35e49b9df4e0 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -429,24 +429,17 @@ int sctp_packet_transmit(struct sctp_packet *packet) list_for_each_entry_safe(chunk, tmp, &packet->chunk_list, list) { list_del_init(&chunk->list); if (sctp_chunk_is_data(chunk)) { + /* 6.3.1 C4) When data is in flight and when allowed + * by rule C5, a new RTT measurement MUST be made each + * round trip. Furthermore, new RTT measurements + * SHOULD be made no more than once per round-trip + * for a given destination transport address. + */ - if (!chunk->resent) { - - /* 6.3.1 C4) When data is in flight and when allowed - * by rule C5, a new RTT measurement MUST be made each - * round trip. Furthermore, new RTT measurements - * SHOULD be made no more than once per round-trip - * for a given destination transport address. - */ - - if (!tp->rto_pending) { - chunk->rtt_in_progress = 1; - tp->rto_pending = 1; - } + if (!tp->rto_pending) { + chunk->rtt_in_progress = 1; + tp->rto_pending = 1; } - - chunk->resent = 1; - has_data = 1; } |