ocfs2: Depend on configfs heartbeat items.
ocfs2 mounts require a heartbeat region. Use the new configfs_depend_item()
facility to actually depend on them so they can't go away from under us.
First, teach cluster/nodemanager.c to depend an item on the o2cb subsystem.
Then teach o2hb_register_callbacks to take a UUID and depend on the
appropriate region. Finally, teach all users of o2hb to pass a UUID or
NULL if they don't require a pin.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
diff --git a/fs/ocfs2/heartbeat.c b/fs/ocfs2/heartbeat.c
index b25ef63..352eb4a 100644
--- a/fs/ocfs2/heartbeat.c
+++ b/fs/ocfs2/heartbeat.c
@@ -157,16 +157,16 @@
if (ocfs2_mount_local(osb))
return 0;
- status = o2hb_register_callback(&osb->osb_hb_down);
+ status = o2hb_register_callback(osb->uuid_str, &osb->osb_hb_down);
if (status < 0) {
mlog_errno(status);
goto bail;
}
- status = o2hb_register_callback(&osb->osb_hb_up);
+ status = o2hb_register_callback(osb->uuid_str, &osb->osb_hb_up);
if (status < 0) {
mlog_errno(status);
- o2hb_unregister_callback(&osb->osb_hb_down);
+ o2hb_unregister_callback(osb->uuid_str, &osb->osb_hb_down);
}
bail:
@@ -178,8 +178,8 @@
if (ocfs2_mount_local(osb))
return;
- o2hb_unregister_callback(&osb->osb_hb_down);
- o2hb_unregister_callback(&osb->osb_hb_up);
+ o2hb_unregister_callback(osb->uuid_str, &osb->osb_hb_down);
+ o2hb_unregister_callback(osb->uuid_str, &osb->osb_hb_up);
}
void ocfs2_stop_heartbeat(struct ocfs2_super *osb)