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authorNeil Horman <nhorman@tuxdriver.com>2008-07-25 12:44:09 -0400
committerVlad Yasevich <vladislav.yasevich@hp.com>2008-10-01 11:33:06 -0400
commitc226ef9b83694311327f3ab0036c6de9c22e9daf (patch)
tree04c81b4186fd79a1f1b129a8627da6a41ceb4c25 /net/sctp/outqueue.c
parent845b8eda4d783a7ce2670d482a716840a650389e (diff)
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.c14
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,
420 * be added to the retransmit queue. 420 * be added to the retransmit queue.
421 */ 421 */
422 if ((reason == SCTP_RTXR_FAST_RTX && 422 if ((reason == SCTP_RTXR_FAST_RTX &&
423 (chunk->fast_retransmit > 0)) || 423 (chunk->fast_retransmit == SCTP_NEED_FRTX)) ||
424 (reason != SCTP_RTXR_FAST_RTX && !chunk->tsn_gap_acked)) { 424 (reason != SCTP_RTXR_FAST_RTX && !chunk->tsn_gap_acked)) {
425 /* If this chunk was sent less then 1 rto ago, do not 425 /* If this chunk was sent less then 1 rto ago, do not
426 * retransmit this chunk, but give the peer time 426 * 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,
650 /* Mark the chunk as ineligible for fast retransmit 650 /* Mark the chunk as ineligible for fast retransmit
651 * after it is retransmitted. 651 * after it is retransmitted.
652 */ 652 */
653 if (chunk->fast_retransmit > 0) 653 if (chunk->fast_retransmit == SCTP_NEED_FRTX)
654 chunk->fast_retransmit = -1; 654 chunk->fast_retransmit = SCTP_DONT_FRTX;
655 655
656 /* Force start T3-rtx timer when fast retransmitting 656 /* Force start T3-rtx timer when fast retransmitting
657 * the earliest outstanding TSN 657 * the earliest outstanding TSN
@@ -680,8 +680,8 @@ static int sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
680 */ 680 */
681 if (rtx_timeout || fast_rtx) { 681 if (rtx_timeout || fast_rtx) {
682 list_for_each_entry(chunk1, lqueue, transmitted_list) { 682 list_for_each_entry(chunk1, lqueue, transmitted_list) {
683 if (chunk1->fast_retransmit > 0) 683 if (chunk1->fast_retransmit == SCTP_NEED_FRTX)
684 chunk1->fast_retransmit = -1; 684 chunk1->fast_retransmit = SCTP_DONT_FRTX;
685 } 685 }
686 } 686 }
687 687
@@ -1656,7 +1656,7 @@ static void sctp_mark_missing(struct sctp_outq *q,
1656 * chunk if it has NOT been fast retransmitted or marked for 1656 * chunk if it has NOT been fast retransmitted or marked for
1657 * fast retransmit already. 1657 * fast retransmit already.
1658 */ 1658 */
1659 if (!chunk->fast_retransmit && 1659 if (chunk->fast_retransmit == SCTP_CAN_FRTX &&
1660 !chunk->tsn_gap_acked && 1660 !chunk->tsn_gap_acked &&
1661 TSN_lt(tsn, highest_new_tsn_in_sack)) { 1661 TSN_lt(tsn, highest_new_tsn_in_sack)) {
1662 1662
@@ -1681,7 +1681,7 @@ static void sctp_mark_missing(struct sctp_outq *q,
1681 */ 1681 */
1682 1682
1683 if (chunk->tsn_missing_report >= 3) { 1683 if (chunk->tsn_missing_report >= 3) {
1684 chunk->fast_retransmit = 1; 1684 chunk->fast_retransmit = SCTP_NEED_FRTX;
1685 do_fast_retransmit = 1; 1685 do_fast_retransmit = 1;
1686 } 1686 }
1687 } 1687 }