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-rw-r--r--include/linux/raid/md_k.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index 817062bf7352..7ef78e15ce04 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -181,6 +181,9 @@ struct mdk_rdev_s
int faulty; /* if faulty do not issue IO requests */
int in_sync; /* device is a full member of the array */
+ unsigned long flags; /* Should include faulty and in_sync here. */
+#define WriteMostly 4 /* Avoid reading if at all possible */
+
int desc_nr; /* descriptor index in the superblock */
int raid_disk; /* role of device in array */
int saved_raid_disk; /* role that device used to have in the
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