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dlm: set zero linger time on sctp socket

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The recovery time for a failed node was taking a long
time because the failed node could not perform the full
shutdown process.  Removing the linger time speeds this
up.  The dlm does not care what happens to messages to
or from the failed node.

Signed-off-by: Dongmao Zhang <dmzhang@suse.com>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Dongmao Zhang 2013-12-10 10:52:22 -06:00 committed by David Teigland
parent 374b105797
commit ece35848c1
1 changed files with 8 additions and 0 deletions
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8
fs/dlm/lowcomms.c
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@ -649,6 +649,7 @@ static void process_sctp_notification(struct connection *con,
struct msghdr *msg, char *buf)
{
union sctp_notification *sn = (union sctp_notification *)buf;
struct linger linger;
switch (sn->sn_header.sn_type) {
case SCTP_SEND_FAILED:
@ -727,6 +728,13 @@ static void process_sctp_notification(struct connection *con,
}
add_sock(new_con->sock, new_con);
linger.l_onoff = 1;
linger.l_linger = 0;
ret = kernel_setsockopt(new_con->sock, SOL_SOCKET, SO_LINGER,
(char *)&linger, sizeof(linger));
if (ret < 0)
log_print("set socket option SO_LINGER failed");
log_print("connecting to %d sctp association %d",
nodeid, (int)sn->sn_assoc_change.sac_assoc_id);