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blk-mq: remove RQF_ELVPRIV

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RQF_ELVPRIV is set for all non-flush requests that have RQF_ELV set.
Expand this condition in the two users of the flag and remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230518053101.760632-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2023-05-18 07:31:00 +02:00 committed by Jens Axboe
parent d97217e7f0
commit fdcab6cdde
4 changed files with 4 additions and 9 deletions
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1
block/blk-mq-debugfs.c
View File

@ -251,7 +251,6 @@ static const char *const rqf_name[] = {
RQF_NAME(DONTPREP),
RQF_NAME(FAILED),
RQF_NAME(QUIET),
RQF_NAME(ELVPRIV),
RQF_NAME(IO_STAT),
RQF_NAME(PM),
RQF_NAME(HASHED),

4
block/blk-mq-sched.h
View File

@ -58,11 +58,11 @@ static inline void blk_mq_sched_completed_request(struct request *rq, u64 now)
static inline void blk_mq_sched_requeue_request(struct request *rq)
{
if (rq->rq_flags & RQF_ELV) {
if ((rq->rq_flags & RQF_ELV) && !op_is_flush(rq->cmd_flags)) {
struct request_queue *q = rq->q;
struct elevator_queue *e = q->elevator;
if ((rq->rq_flags & RQF_ELVPRIV) && e->type->ops.requeue_request)
if (e->type->ops.requeue_request)
e->type->ops.requeue_request(rq);
}
}

6
block/blk-mq.c
View File

@ -393,10 +393,8 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
RB_CLEAR_NODE(&rq->rb_node);
if (!op_is_flush(data->cmd_flags) &&
e->type->ops.prepare_request) {
e->type->ops.prepare_request)
e->type->ops.prepare_request(rq);
rq->rq_flags |= RQF_ELVPRIV;
}
}
return rq;
@ -696,7 +694,7 @@ void blk_mq_free_request(struct request *rq)
struct request_queue *q = rq->q;
struct blk_mq_hw_ctx *hctx = rq->mq_hctx;
if ((rq->rq_flags & RQF_ELVPRIV) &&
if ((rq->rq_flags & RQF_ELV) && !op_is_flush(rq->cmd_flags) &&
q->elevator->type->ops.finish_request)
q->elevator->type->ops.finish_request(rq);

2
include/linux/blk-mq.h
View File

@ -42,8 +42,6 @@ typedef __u32 __bitwise req_flags_t;
#define RQF_FAILED ((__force req_flags_t)(1 << 10))
/* don't warn about errors */
#define RQF_QUIET ((__force req_flags_t)(1 << 11))
/* elevator private data attached */
#define RQF_ELVPRIV ((__force req_flags_t)(1 << 12))
/* account into disk and partition IO statistics */
#define RQF_IO_STAT ((__force req_flags_t)(1 << 13))
/* runtime pm request */