[PATCH] block: elevator: remove dead elevator code

[PATCH] block: elevator: remove dead elevator code

[Jackie Liu]

Since a1ce35fa4985 ("block: remove dead elevator code") we droped
ELEVATOR_INSERT_SORT, ELEVATOR_INSERT_BACK and so on.

After f382fb0bcef4 ("block: remove legacy IO schedulers") we droped
rq_end_sector(rq) use.

After f382fb0bcef4 ("block: remove legacy IO schedulers") we droped
rq_fifo_clear(rq) use.

Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
---
 block/blk-flush.c        |  5 -----
 include/linux/elevator.h | 13 -------------
 2 files changed, 18 deletions(-)

diff --git a/block/blk-flush.c b/block/blk-flush.c
index 7942ca6ed321..0cba5bb2c5e0 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -361,11 +361,6 @@ static void mq_flush_data_end_io(struct request *rq, blk_status_t error)
 /**
  * blk_insert_flush - insert a new PREFLUSH/FUA request
  * @rq: request to insert
- *
- * To be called from __elv_add_request() for %ELEVATOR_INSERT_FLUSH insertions.
- * or __blk_mq_run_hw_queue() to dispatch request.
- * @rq is being submitted.  Analyze what needs to be done and put it on the
- * right queue.
  */
 void blk_insert_flush(struct request *rq)
 {
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 1fe8e105b83b..727f74ae77c8 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -150,21 +150,8 @@ extern void elv_rb_add(struct rb_root *, struct request *);
 extern void elv_rb_del(struct rb_root *, struct request *);
 extern struct request *elv_rb_find(struct rb_root *, sector_t);
 
-/*
- * Insertion selection
- */
-#define ELEVATOR_INSERT_FRONT	1
-#define ELEVATOR_INSERT_BACK	2
-#define ELEVATOR_INSERT_SORT	3
-#define ELEVATOR_INSERT_REQUEUE	4
-#define ELEVATOR_INSERT_FLUSH	5
-#define ELEVATOR_INSERT_SORT_MERGE	6
-
-#define rq_end_sector(rq)	(blk_rq_pos(rq) + blk_rq_sectors(rq))
 #define rb_entry_rq(node)	rb_entry((node), struct request, rb_node)
-
 #define rq_entry_fifo(ptr)	list_entry((ptr), struct request, queuelist)
-#define rq_fifo_clear(rq)	list_del_init(&(rq)->queuelist)
 
 /*
  * Elevator features.
-- 
2.25.1