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-rw-r--r--block/blk.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h
index 9dcf51c94096..94f7c084f68f 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -25,6 +25,11 @@ struct blk_flush_queue {
struct list_head flush_data_in_flight;
struct request *flush_rq;
+ /*
+ * flush_rq shares tag with this rq, both can't be active
+ * at the same time
+ */
+ struct request *orig_rq;
struct lock_class_key key;
spinlock_t mq_flush_lock;
};