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| author | Joel Becker <joel.becker@oracle.com> | 2007-06-19 11:34:03 -0700 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2007-07-10 17:19:43 -0700 |
| commit | 16c6a4f24de2933b26477ad5dfb71f518220d641 (patch) | |
| tree | dd6e1efd95d00f84a7132b8ada3314bcea730d68 /fs/ocfs2/cluster/nodemanager.c | |
| parent | 14829422be6d6b6721f61b1e749acf5a9cb664d8 (diff) | |
| download | linux-16c6a4f24de2933b26477ad5dfb71f518220d641.tar.gz linux-16c6a4f24de2933b26477ad5dfb71f518220d641.tar.bz2 linux-16c6a4f24de2933b26477ad5dfb71f518220d641.zip | |
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.c | 30 |
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) |