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Diffstat (limited to 'drivers/md/md.h')
-rw-r--r--drivers/md/md.h25
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index fa4b607854ac..1e586bb4452e 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -81,12 +81,29 @@ 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 AutoDetected 7 /* added by auto-detect */
-#define Blocked 8 /* An error occurred on an externally
- * managed array, don't allow writes
+#define Blocked 8 /* An error occurred but has not yet
+ * been acknowledged by the metadata
+ * handler, so don't allow writes
* until it is cleared */
#define WriteErrorSeen 9 /* A write error has been seen on this
* device
*/
+#define FaultRecorded 10 /* Intermediate state for clearing
+ * Blocked. The Fault is/will-be
+ * recorded in the metadata, but that
+ * metadata hasn't been stored safely
+ * on disk yet.
+ */
+#define BlockedBadBlocks 11 /* A writer is blocked because they
+ * found an unacknowledged bad-block.
+ * This can safely be cleared at any
+ * time, and the writer will re-check.
+ * It may be set at any time, and at
+ * worst the writer will timeout and
+ * re-check. So setting it as
+ * accurately as possible is good, but
+ * not absolutely critical.
+ */
wait_queue_head_t blocked_wait;
int desc_nr; /* descriptor index in the superblock */
@@ -124,6 +141,10 @@ struct mdk_rdev_s
struct badblocks {
int count; /* count of bad blocks */
+ int unacked_exist; /* there probably are unacknowledged
+ * bad blocks. This is only cleared
+ * when a read discovers none
+ */
int shift; /* shift from sectors to block size
* a -ve shift means badblocks are
* disabled.*/