dlm: disable nagle for SCTP (86e92ad2) · Commits · 戴 / test

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 <michaelc@cs.wisc.edu> Signed-off-by:

David Teigland <teigland@redhat.com>

fs/dlm/lowcomms.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -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;

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