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-rw-r--r--include/linux/raid/md_k.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index 8042f55dd323..ebce949b1443 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -102,6 +102,7 @@ struct mdk_rdev_s
int sb_loaded;
sector_t data_offset; /* start of data in array */
sector_t sb_offset;
+ int sb_size; /* bytes in the superblock */
int preferred_minor; /* autorun support */
/* A device can be in one of three states based on two flags: