GFS2: dlm based recovery coordination

This new method of managing recovery is an alternative to
the previous approach of using the userland gfs_controld.

- use dlm slot numbers to assign journal id's
- use dlm recovery callbacks to initiate journal recovery
- use a dlm lock to determine the first node to mount fs
- use a dlm lock to track journals that need recovery

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 2553b858a72e..307ac31df781 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -121,8 +121,11 @@ enum {
 
 struct lm_lockops {
         const char *lm_proto_name;
-        int (*lm_mount) (struct gfs2_sbd *sdp, const char *fsname);
-        void (*lm_unmount) (struct gfs2_sbd *sdp);
+        int (*lm_mount) (struct gfs2_sbd *sdp, const char *table);
+        void (*lm_first_done) (struct gfs2_sbd *sdp);
+        void (*lm_recovery_result) (struct gfs2_sbd *sdp, unsigned int jid,
+                                    unsigned int result);
+        void (*lm_unmount) (struct gfs2_sbd *sdp);
         void (*lm_withdraw) (struct gfs2_sbd *sdp);
         void (*lm_put_lock) (struct gfs2_glock *gl);
         int (*lm_lock) (struct gfs2_glock *gl, unsigned int req_state,