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>
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 764d15d..f80fb14 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1413,7 +1413,7 @@
lvb = (struct ocfs2_meta_lvb *) lockres->l_lksb.lvb;
- lvb->lvb_version = cpu_to_be32(OCFS2_LVB_VERSION);
+ lvb->lvb_version = OCFS2_LVB_VERSION;
lvb->lvb_isize = cpu_to_be64(i_size_read(inode));
lvb->lvb_iclusters = cpu_to_be32(oi->ip_clusters);
lvb->lvb_iuid = cpu_to_be32(inode->i_uid);
@@ -1486,7 +1486,7 @@
{
struct ocfs2_meta_lvb *lvb = (struct ocfs2_meta_lvb *) lockres->l_lksb.lvb;
- if (be32_to_cpu(lvb->lvb_version) == OCFS2_LVB_VERSION)
+ if (lvb->lvb_version == OCFS2_LVB_VERSION)
return 1;
return 0;
}
@@ -3167,7 +3167,7 @@
mlog(level, "LVB information for %s (called from %s:%u):\n",
lockres->l_name, function, line);
mlog(level, "version: %u, clusters: %u\n",
- be32_to_cpu(lvb->lvb_version), be32_to_cpu(lvb->lvb_iclusters));
+ lvb->lvb_version, be32_to_cpu(lvb->lvb_iclusters));
mlog(level, "size: %llu, uid %u, gid %u, mode 0x%x\n",
(unsigned long long)be64_to_cpu(lvb->lvb_isize),
be32_to_cpu(lvb->lvb_iuid), be32_to_cpu(lvb->lvb_igid),