dlm: connect to nodes earlier

Make network connections to other nodes earlier, in the context of
dlm_recoverd.  This avoids connecting to nodes from dlm_send where we
try to avoid allocations which could possibly deadlock if memory reclaim
goes into the cluster fs which may try to do a dlm operation.

Signed-off-by: Christine Caulfield <ccaulfie@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index 26133f0..2afb770 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -1,7 +1,7 @@
 /******************************************************************************
 *******************************************************************************
 **
-**  Copyright (C) 2005-2008 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2005-2009 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -17,6 +17,7 @@
 #include "recover.h"
 #include "rcom.h"
 #include "config.h"
+#include "lowcomms.h"
 
 static void add_ordered_member(struct dlm_ls *ls, struct dlm_member *new)
 {
@@ -45,7 +46,7 @@ static void add_ordered_member(struct dlm_ls *ls, struct dlm_member *new)
 static int dlm_add_member(struct dlm_ls *ls, int nodeid)
 {
 	struct dlm_member *memb;
-	int w;
+	int w, error;
 
 	memb = kzalloc(sizeof(struct dlm_member), GFP_KERNEL);
 	if (!memb)
@@ -57,6 +58,12 @@ static int dlm_add_member(struct dlm_ls *ls, int nodeid)
 		return w;
 	}
 
+	error = dlm_lowcomms_connect_node(nodeid);
+	if (error < 0) {
+		kfree(memb);
+		return error;
+	}
+
 	memb->nodeid = nodeid;
 	memb->weight = w;
 	add_ordered_member(ls, memb);