From 8058eb786342a96fb4dd6af9b637198e62e1206c Mon Sep 17 00:00:00 2001 From: Xin Long <lucien.xin@gmail.com> Date: Sun, 19 Feb 2017 01:52:45 +0800 Subject: [PATCH] sctp: flush out queue once assoc state falls into SHUTDOWN_PENDING This patch is to flush out queue when assoc state falls into SHUTDOWN_PENDING if there are still chunks in it, so that the data can be sent out as soon as possible before sending SHUTDOWN chunk. When sctp supports MSG_MORE flag in next patch, this improvement can also solve the problem that the chunks with MSG_MORE flag may be stuck in queue when closing an assoc. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- net/sctp/sm_sideeffect.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c index 51abcc90fe75d..25384fa82ba99 100644 --- a/net/sctp/sm_sideeffect.c +++ b/net/sctp/sm_sideeffect.c @@ -872,6 +872,10 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds, if (!sctp_style(sk, UDP)) sk->sk_state_change(sk); } + + if (sctp_state(asoc, SHUTDOWN_PENDING) && + !sctp_outq_is_empty(&asoc->outqueue)) + sctp_outq_uncork(&asoc->outqueue, GFP_ATOMIC); } /* Helper function to delete an association. */ -- 2.39.5