ocfs2: Change the recovery map to an array of node numbers.

The old recovery map was a bitmap of node numbers.  This was sufficient
for the maximum node number of 254.  Going forward, we want node numbers
to be UINT32.  Thus, we need a new recovery map.

Note that we can't keep track of slots here.  We must write down the
node number to recovery *before* we get the locks needed to convert a
node number into a slot number.

The recovery map is now an array of unsigned ints, max_slots in size.
It moves to journal.c with the rest of recovery.

Because it needs to be initialized, we move all of recovery initialization
into a new function, ocfs2_recovery_init().  This actually cleans up
ocfs2_initialize_super() a little as well.  Following on, recovery cleaup
becomes part of ocfs2_recovery_exit().

A number of node map functions are rendered obsolete and are removed.

Finally, waiting on recovery is wrapped in a function rather than naked
checks on the recovery_event.  This is a cleanup from Mark.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index ee3f675a4210..c6ed8c35de0d 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -180,6 +180,7 @@ enum ocfs2_mount_options
 
 struct ocfs2_journal;
 struct ocfs2_slot_info;
+struct ocfs2_recovery_map;
 struct ocfs2_super
 {
         struct task_struct *commit_task;
@@ -191,7 +192,6 @@ struct ocfs2_super
         struct ocfs2_slot_info *slot_info;
 
         spinlock_t node_map_lock;
-        struct ocfs2_node_map recovery_map;
 
         u64 root_blkno;
         u64 system_dir_blkno;
@@ -226,6 +226,7 @@ struct ocfs2_super
 
         atomic_t vol_state;
         struct mutex recovery_lock;
+        struct ocfs2_recovery_map *recovery_map;
         struct task_struct *recovery_thread_task;
         int disable_recovery;
         wait_queue_head_t checkpoint_event;