block: elevator.c: Remove now unused elevator= argument

Since the inclusion of blk-mq, elevator argument was not being
considered anymore, and it's utility died long with the legacy IO path,
now removed too.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>

Fold with doc removal patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 0 insertions, 14 deletions

diff --git a/block/elevator.c b/block/elevator.c
index 4781c4205a5d..86100de88883 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -135,20 +135,6 @@ static struct elevator_type *elevator_get(struct request_queue *q,
         return e;
 }
 
-static char chosen_elevator[ELV_NAME_MAX];
-
-static int __init elevator_setup(char *str)
-{
-        /*
-         * Be backwards-compatible with previous kernels, so users
-         * won't get the wrong elevator.
-         */
-        strncpy(chosen_elevator, str, sizeof(chosen_elevator) - 1);
-        return 1;
-}
-
-__setup("elevator=", elevator_setup);
-
 static struct kobj_type elv_ktype;
 
 struct elevator_queue *elevator_alloc(struct request_queue *q,