Reserve the INCOMPAT feature number for FLEX_BG.

From: Jose R. Santos <jrs@us.ibm.com>

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
---

 lib/ext2fs/ext2_fs.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/lib/ext2fs/ext2_fs.h b/lib/ext2fs/ext2_fs.h
index a316665..2394857 100644
--- a/lib/ext2fs/ext2_fs.h
+++ b/lib/ext2fs/ext2_fs.h
@@ -640,6 +640,7 @@ struct ext2_super_block {
 #define EXT3_FEATURE_INCOMPAT_EXTENTS		0x0040
 #define EXT4_FEATURE_INCOMPAT_64BIT		0x0080
 #define EXT4_FEATURE_INCOMPAT_MMP		0x0100
+#define EXT4_FEATURE_INCOMPAT_FLEX_BG		0x0200
 
 
 #define EXT2_FEATURE_COMPAT_SUPP	0
