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| author | Neil Horman <nhorman@tuxdriver.com> | 2008-07-25 12:44:09 -0400 |
|---|---|---|
| committer | Vlad Yasevich <vladislav.yasevich@hp.com> | 2008-10-01 11:33:06 -0400 |
| commit | c226ef9b83694311327f3ab0036c6de9c22e9daf (patch) | |
| tree | 04c81b4186fd79a1f1b129a8627da6a41ceb4c25 /net/sctp/outqueue.c | |
| parent | 845b8eda4d783a7ce2670d482a716840a650389e (diff) | |
| download | linux-c226ef9b83694311327f3ab0036c6de9c22e9daf.tar.bz2 | |
sctp: reduce memory footprint of sctp_chunk structure
sctp_chunks should be put on a diet. This is some of the low hanging
fruit that we can strip out. Changes all the __s8/__u8 flags to
bitfields. Saves 12 bytes per chunk.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Diffstat (limited to 'net/sctp/outqueue.c')
| -rw-r--r-- | net/sctp/outqueue.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index da8d846301c1..247ebc95c1e5 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -420,7 +420,7 @@ void sctp_retransmit_mark(struct sctp_outq *q, * be added to the retransmit queue. */ if ((reason == SCTP_RTXR_FAST_RTX && - (chunk->fast_retransmit > 0)) || + (chunk->fast_retransmit == SCTP_NEED_FRTX)) || (reason != SCTP_RTXR_FAST_RTX && !chunk->tsn_gap_acked)) { /* If this chunk was sent less then 1 rto ago, do not * retransmit this chunk, but give the peer time @@ -650,8 +650,8 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt, /* Mark the chunk as ineligible for fast retransmit * after it is retransmitted. */ - if (chunk->fast_retransmit > 0) - chunk->fast_retransmit = -1; + if (chunk->fast_retransmit == SCTP_NEED_FRTX) + chunk->fast_retransmit = SCTP_DONT_FRTX; /* Force start T3-rtx timer when fast retransmitting * the earliest outstanding TSN @@ -680,8 +680,8 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt, */ if (rtx_timeout || fast_rtx) { list_for_each_entry(chunk1, lqueue, transmitted_list) { - if (chunk1->fast_retransmit > 0) - chunk1->fast_retransmit = -1; + if (chunk1->fast_retransmit == SCTP_NEED_FRTX) + chunk1->fast_retransmit = SCTP_DONT_FRTX; } } @@ -1656,7 +1656,7 @@ static void sctp_mark_missing(struct sctp_outq *q, * chunk if it has NOT been fast retransmitted or marked for * fast retransmit already. */ - if (!chunk->fast_retransmit && + if (chunk->fast_retransmit == SCTP_CAN_FRTX && !chunk->tsn_gap_acked && TSN_lt(tsn, highest_new_tsn_in_sack)) { @@ -1681,7 +1681,7 @@ static void sctp_mark_missing(struct sctp_outq *q, */ if (chunk->tsn_missing_report >= 3) { - chunk->fast_retransmit = 1; + chunk->fast_retransmit = SCTP_NEED_FRTX; do_fast_retransmit = 1; } } |