ocfs2: Free up some space in the lvb

lvb_version doesn't need to be a whole 32 bits. Make it an 8 bit field to
free up some space. This should be backwards compatible until we use one of
the fields, in which case we'd bump the lvb version anyway.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 340251567e99..3476a1611341 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -32,7 +32,9 @@
 #define OCFS2_LVB_VERSION 3
 
 struct ocfs2_meta_lvb {
-        __be32       lvb_version;
+        __be16       lvb_reserved0;
+        __u8         lvb_reserved1;
+        __u8         lvb_version;
         __be32       lvb_iclusters;
         __be32       lvb_iuid;
         __be32       lvb_igid;