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-rw-r--r--drivers/md/md.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index e78b3c1d55f..bede26c9d4a 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -159,6 +159,13 @@ struct mddev_s
struct mdk_thread_s *thread; /* management thread */
struct mdk_thread_s *sync_thread; /* doing resync or reconstruct */
sector_t curr_resync; /* last block scheduled */
+ /* As resync requests can complete out of order, we cannot easily track
+ * how much resync has been completed. So we occasionally pause until
+ * everything completes, then set curr_resync_completed to curr_resync.
+ * As such it may be well behind the real resync mark, but it is a value
+ * we are certain of.
+ */
+ sector_t curr_resync_completed;
unsigned long resync_mark; /* a recent timestamp */
sector_t resync_mark_cnt;/* blocks written at resync_mark */
sector_t curr_mark_cnt; /* blocks scheduled now */