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authorJoel Becker <joel.becker@oracle.com>2007-06-19 11:34:03 -0700
committerMark Fasheh <mark.fasheh@oracle.com>2007-07-10 17:19:43 -0700
commit16c6a4f24de2933b26477ad5dfb71f518220d641 (patch)
treedd6e1efd95d00f84a7132b8ada3314bcea730d68 /fs/ocfs2/cluster/nodemanager.c
parent14829422be6d6b6721f61b1e749acf5a9cb664d8 (diff)
ocfs2: live heartbeat depends on the local node configuration
Removing the local node configuration out from underneath a running heartbeat is "bad". Provide an API in the ocfs2 nodemanager to request a configfs dependancy on the local node, then use it in heartbeat. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/cluster/nodemanager.c')
-rw-r--r--fs/ocfs2/cluster/nodemanager.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index eab46d8a7c8c..af2070da308b 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -910,6 +910,36 @@ void o2nm_undepend_item(struct config_item *item)
configfs_undepend_item(&o2nm_cluster_group.cs_subsys, item);
}
+int o2nm_depend_this_node(void)
+{
+ int ret = 0;
+ struct o2nm_node *local_node;
+
+ local_node = o2nm_get_node_by_num(o2nm_this_node());
+ if (!local_node) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = o2nm_depend_item(&local_node->nd_item);
+ o2nm_node_put(local_node);
+
+out:
+ return ret;
+}
+
+void o2nm_undepend_this_node(void)
+{
+ struct o2nm_node *local_node;
+
+ local_node = o2nm_get_node_by_num(o2nm_this_node());
+ BUG_ON(!local_node);
+
+ o2nm_undepend_item(&local_node->nd_item);
+ o2nm_node_put(local_node);
+}
+
+
static void __exit exit_o2nm(void)
{
if (ocfs2_table_header)