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-rw-r--r--net/sctp/output.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c
index cdc5a39..3ef4351 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -633,7 +633,7 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
* data will fit or delay in hopes of bundling a full
* sized packet.
*/
- if (len < asoc->pathmtu - packet->overhead) {
+ if (len < asoc->frag_point) {
retval = SCTP_XMIT_NAGLE_DELAY;
goto finish;
}
@@ -645,7 +645,13 @@ static sctp_xmit_t sctp_packet_append_data(struct sctp_packet *packet,
/* Keep track of how many bytes are in flight to the receiver. */
asoc->outqueue.outstanding_bytes += datasize;
- /* Update our view of the receiver's rwnd. */
+ /* Update our view of the receiver's rwnd. Include sk_buff overhead
+ * while updating peer.rwnd so that it reduces the chances of a
+ * receiver running out of receive buffer space even when receive
+ * window is still open. This can happen when a sender is sending
+ * sending small messages.
+ */
+ datasize += sizeof(struct sk_buff);
if (datasize < rwnd)
rwnd -= datasize;
else
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