ocfs2: local mounts

This allows users to format an ocfs2 file system with a special flag,
OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT. When the file system sees this flag, it
will not use any cluster services, nor will it require a cluster
configuration, thus acting like a 'local' file system.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index cbfd45a97a63..8fc52d6d0ce7 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -154,6 +154,9 @@ int ocfs2_register_hb_callbacks(struct ocfs2_super *osb)
 {
         int status;
 
+        if (ocfs2_mount_local(osb))
+                return 0;
+
         status = o2hb_register_callback(&osb->osb_hb_down);
         if (status < 0) {
                 mlog_errno(status);
@@ -172,6 +175,9 @@ void ocfs2_clear_hb_callbacks(struct ocfs2_super *osb)
 {
         int status;
 
+        if (ocfs2_mount_local(osb))
+                return;
+
         status = o2hb_unregister_callback(&osb->osb_hb_down);
         if (status < 0)
                 mlog_errno(status);
@@ -186,6 +192,9 @@ void ocfs2_stop_heartbeat(struct ocfs2_super *osb)
         int ret;
         char *argv[5], *envp[3];
 
+        if (ocfs2_mount_local(osb))
+                return;
+
         if (!osb->uuid_str) {
                 /* This can happen if we don't get far enough in mount... */
                 mlog(0, "No UUID with which to stop heartbeat!\n\n");