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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 <michaelc@cs.wisc.edu>
Signed-off-by: David Teigland <teigland@redhat.com>
This commit is contained in:
Mike Christie 2013-06-14 04:56:14 -05:00 committed by David Teigland
parent 5d6898714f
commit 86e92ad299
1 changed files with 6 additions and 0 deletions
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6
fs/dlm/lowcomms.c
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@ -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;