ocfs2: De-magic the in-memory slot map.

The in-memory slot map uses the same magic as the on-disk one.  There is
a special value to mark a slot as invalid.  It relies on the size of
certain types and so on.

Write a new in-memory map that keeps validity as a separate field.  Outside
of the I/O functions, OCFS2_INVALID_SLOT now means what it is supposed to.
It also is no longer tied to the type size.

This also means that only the I/O functions refer to 16bit quantities.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index ca4c0ea..bffd2d7 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -71,7 +71,7 @@ static int ocfs2_commit_thread(void *arg);
  */
 
 struct ocfs2_recovery_map {
-	int rm_used;
+	unsigned int rm_used;
 	unsigned int *rm_entries;
 };