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-rw-r--r--include/linux/raid/md.h1
-rw-r--r--include/linux/raid/md_k.h4
2 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/raid/md.h b/include/linux/raid/md.h
index 8ab630b67fcc..81a1a02d4566 100644
--- a/include/linux/raid/md.h
+++ b/include/linux/raid/md.h
@@ -94,6 +94,7 @@ extern int sync_page_io(struct block_device *bdev, sector_t sector, int size,
extern void md_do_sync(mddev_t *mddev);
extern void md_new_event(mddev_t *mddev);
extern void md_allow_write(mddev_t *mddev);
+extern void md_wait_for_blocked_rdev(mdk_rdev_t *rdev, mddev_t *mddev);
#endif /* CONFIG_MD */
#endif
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index 7bb6d1abf71e..812ffa590cff 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -84,6 +84,10 @@ struct mdk_rdev_s
#define AllReserved 6 /* If whole device is reserved for
* one array */
#define AutoDetected 7 /* added by auto-detect */
+#define Blocked 8 /* An error occured on an externally
+ * managed array, don't allow writes
+ * until it is cleared */
+ wait_queue_head_t blocked_wait;
int desc_nr; /* descriptor index in the superblock */
int raid_disk; /* role of device in array */
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