Add support for internal bitmaps

For version 0.90 superblocks, an internal bitmap can be specified at create.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>

1 files changed, 2 insertions, 0 deletions

diff --git a/md_p.h b/md_p.h
index aeaf878..31eaafd 100644
--- a/md_p.h
+++ b/md_p.h
@@ -96,6 +96,8 @@ typedef struct mdp_device_descriptor_s {
 #define MD_SB_CLEAN		0
 #define MD_SB_ERRORS		1
 
+#define	MD_SB_BITMAP_PRESENT	8 /* bitmap may be present nearby */
+
 typedef struct mdp_superblock_s {
 	/*
 	 * Constant generic information