[PATCH] net: sctp: set chunk->tsn_gap_acked at the end of cycle
From: Chang Xiangzhong
Date: Fri Nov 22 2013 - 02:50:23 EST
tsn_gap_acked is an important state flag in chunk, which indicates if the
chunk has been acked in gap reports before. SFR-CACC algorithm depends on this
variable. So set this at the end of each iteration, otherwise the SFR-CACC
algorithm would never be toggled.
Signed-off-by: Chang Xiangzhong <changxiangzhong@xxxxxxxxx>
---
net/sctp/outqueue.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 1b494fa..bff828c 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1396,7 +1396,6 @@ static void sctp_check_transmitted(struct sctp_outq *q,
* while DATA was outstanding).
*/
if (!tchunk->tsn_gap_acked) {
- tchunk->tsn_gap_acked = 1;
if (TSN_lt(*highest_new_tsn_in_sack, tsn))
*highest_new_tsn_in_sack = tsn;
bytes_acked += sctp_data_size(tchunk);
@@ -1460,6 +1459,8 @@ static void sctp_check_transmitted(struct sctp_outq *q,
*/
list_add_tail(lchunk, &tlist);
}
+
+ tchunk->tsn_gap_acked = 1;
} else {
if (tchunk->tsn_gap_acked) {
pr_debug("%s: receiver reneged on data TSN:0x%x\n",
--
1.8.4.3
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