sctp: move chunk from retransmit queue to abandoned list

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If there is still data waiting to retransmit and remain in
retransmit queue, while doing the next retransmit, if the
chunk is abandoned, we should move it to abandoned list.

Signed-off-by: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>
---
 net/sctp/outqueue.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 229690f..8092032 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -390,6 +390,18 @@ void sctp_retransmit_mark(struct sctp_outq *q,
 	struct list_head *lchunk, *ltemp;
 	struct sctp_chunk *chunk;
 
+	/* Walk through the retransmit queue */
+	list_for_each_safe(lchunk, ltemp, &q->retransmit) {
+		chunk = list_entry(lchunk, struct sctp_chunk,
+				   transmitted_list);
+
+		/* If the chunk is abandoned, move it to abandoned list. */
+		if (sctp_chunk_abandoned(chunk)) {
+			list_del_init(lchunk);
+			sctp_insert_list(&q->abandoned, lchunk);
+		}
+	}
+
 	/* Walk through the specified transmitted queue.  */
 	list_for_each_safe(lchunk, ltemp, &transport->transmitted) {
 		chunk = list_entry(lchunk, struct sctp_chunk,
-- 
1.6.2.2


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