ocfs2: Add JBD2 compat feature bit.

Define the OCFS2_FEATURE_COMPAT_JBD2 bit in the filesystem header.

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

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 5f180cf7abbd6f4e21dc1a662932f06ad56a6407..5e0c0d0aef7dcbcf1c9baae7b108cc47bce1f9cf 100644 (file)
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -86,7 +86,8 @@
 #define OCFS2_CLEAR_INCOMPAT_FEATURE(sb,mask)                  \
        OCFS2_SB(sb)->s_feature_incompat &= ~(mask)
 
-#define OCFS2_FEATURE_COMPAT_SUPP      OCFS2_FEATURE_COMPAT_BACKUP_SB
+#define OCFS2_FEATURE_COMPAT_SUPP      (OCFS2_FEATURE_COMPAT_BACKUP_SB \
+                                        | OCFS2_FEATURE_COMPAT_JBD2_SB)
 #define OCFS2_FEATURE_INCOMPAT_SUPP    (OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT \
                                         | OCFS2_FEATURE_INCOMPAT_SPARSE_ALLOC \
                                         | OCFS2_FEATURE_INCOMPAT_INLINE_DATA \
@@ -152,6 +153,11 @@
  */
 #define OCFS2_FEATURE_COMPAT_BACKUP_SB         0x0001
 
+/*
+ * The filesystem will correctly handle journal feature bits.
+ */
+#define OCFS2_FEATURE_COMPAT_JBD2_SB           0x0002
+
 /*
  * Unwritten extents support.
  */