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-rw-r--r--include/linux/blkdev.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index af700530622f..e13b7221ff9d 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -462,6 +462,12 @@ struct request_queue {
struct list_head flush_queue[2];
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;
spinlock_t mq_flush_lock;
struct list_head requeue_list;