While inspecting the queue_rq calling sites, I verified that blk_mq_start_request calls blk_mq_sched_started_request, and this function checks if the elevator of the current request implements the started_request, but currently none of the available IO schedulers do.
So, let's remove blk_mq_sched_started_request along with started_request, which is member of the elevator_mq_ops struct. Marcos Paulo de Souza (2): block: blk-mq: Remove blk_mq_sched_started_request function include: elevator.h: Remove started_request from elevator_mq_ops block/blk-mq-sched.h | 9 --------- block/blk-mq.c | 2 -- include/linux/elevator.h | 1 - 3 files changed, 12 deletions(-) -- 2.22.0
