From 86e92ad299fb0be359efdd61812944497d4d8d52 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Fri, 14 Jun 2013 04:56:14 -0500 Subject: dlm: disable nagle for SCTP For TCP we disable Nagle and I cannot think of why it would be needed for SCTP. When disabled it seems to improve dlm_lock operations like it does for TCP. Signed-off-by: Mike Christie Signed-off-by: David Teigland --- fs/dlm/lowcomms.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'fs/dlm') diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index a4fad32bb788..4f539dd9b1e9 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -1346,6 +1346,7 @@ static int sctp_listen_for_all(void) int result = -EINVAL, num = 1, i, addr_len; struct connection *con = nodeid2con(0, GFP_NOFS); int bufsize = NEEDED_RMEM; + int one = 1; if (!con) return -ENOMEM; @@ -1380,6 +1381,11 @@ static int sctp_listen_for_all(void) goto create_delsock; } + result = kernel_setsockopt(sock, SOL_SCTP, SCTP_NODELAY, (char *)&one, + sizeof(one)); + if (result < 0) + log_print("Could not set SCTP NODELAY error %d\n", result); + /* Init con struct */ sock->sk->sk_user_data = con; con->sock = sock; -- cgit v1.2.3-59-g8ed1b