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-rw-r--r--include/linux/raid/md_k.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index c77dca3221ed..5b2102e40286 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -81,6 +81,8 @@ struct mdk_rdev_s
#define In_sync 2 /* device is in_sync with rest of array */
#define WriteMostly 4 /* Avoid reading if at all possible */
#define BarriersNotsupp 5 /* BIO_RW_BARRIER is not supported */
+#define AllReserved 6 /* If whole device is reserved for
+ * one array */
int desc_nr; /* descriptor index in the superblock */
int raid_disk; /* role of device in array */