ocfs2: local mounts

This allows users to format an ocfs2 file system with a special flag,
OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT. When the file system sees this flag, it
will not use any cluster services, nor will it require a cluster
configuration, thus acting like a 'local' file system.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 3330a5dc6be2..2e90e89f1602 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -86,7 +86,7 @@
         OCFS2_SB(sb)->s_feature_incompat &= ~(mask)
 
 #define OCFS2_FEATURE_COMPAT_SUPP       0
-#define OCFS2_FEATURE_INCOMPAT_SUPP     0
+#define OCFS2_FEATURE_INCOMPAT_SUPP     OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT
 #define OCFS2_FEATURE_RO_COMPAT_SUPP    0
 
 /*
@@ -97,6 +97,9 @@
 #define OCFS2_FEATURE_INCOMPAT_HEARTBEAT_DEV    0x0002
 
 
+/* Used to denote a non-clustered volume */
+#define OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT      0x0008
+
 /*
  * Flags on ocfs2_dinode.i_flags
  */