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-rw-r--r--include/linux/elevator.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index b38b4e651ea6..8265b6330cc2 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -16,6 +16,7 @@ enum elv_merge {
ELEVATOR_NO_MERGE = 0,
ELEVATOR_FRONT_MERGE = 1,
ELEVATOR_BACK_MERGE = 2,
+ ELEVATOR_DISCARD_MERGE = 3,
};
typedef enum elv_merge (elevator_merge_fn) (struct request_queue *, struct request **,