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scsi: block: Remove RQF_PREEMPT and BLK_MQ_REQ_PREEMPT
[ Upstream commit a4d34da715
]
Remove flag RQF_PREEMPT and BLK_MQ_REQ_PREEMPT since these are no longer
used by any kernel code.
Link: https://lore.kernel.org/r/20201209052951.16136-8-bvanassche@acm.org
Cc: Can Guo <cang@codeaurora.org>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
faa613d033
commit
782c9ef2ac
5 changed files with 4 additions and 14 deletions
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@ -424,11 +424,11 @@ EXPORT_SYMBOL(blk_cleanup_queue);
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/**
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* blk_queue_enter() - try to increase q->q_usage_counter
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* @q: request queue pointer
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* @flags: BLK_MQ_REQ_NOWAIT, BLK_MQ_REQ_PM and/or BLK_MQ_REQ_PREEMPT
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* @flags: BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PM
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*/
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int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
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{
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const bool pm = flags & (BLK_MQ_REQ_PM | BLK_MQ_REQ_PREEMPT);
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const bool pm = flags & BLK_MQ_REQ_PM;
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while (true) {
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bool success = false;
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@ -630,8 +630,7 @@ struct request *blk_get_request(struct request_queue *q, unsigned int op,
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struct request *req;
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WARN_ON_ONCE(op & REQ_NOWAIT);
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WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PM |
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BLK_MQ_REQ_PREEMPT));
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WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PM));
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req = blk_mq_alloc_request(q, op, flags);
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if (!IS_ERR(req) && q->mq_ops->initialize_rq_fn)
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@ -298,7 +298,6 @@ static const char *const rqf_name[] = {
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RQF_NAME(MIXED_MERGE),
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RQF_NAME(MQ_INFLIGHT),
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RQF_NAME(DONTPREP),
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RQF_NAME(PREEMPT),
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RQF_NAME(FAILED),
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RQF_NAME(QUIET),
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RQF_NAME(ELVPRIV),
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@ -294,8 +294,6 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
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rq->cmd_flags = data->cmd_flags;
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if (data->flags & BLK_MQ_REQ_PM)
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rq->rq_flags |= RQF_PM;
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if (data->flags & BLK_MQ_REQ_PREEMPT)
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rq->rq_flags |= RQF_PREEMPT;
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if (blk_queue_io_stat(data->q))
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rq->rq_flags |= RQF_IO_STAT;
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INIT_LIST_HEAD(&rq->queuelist);
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@ -448,8 +448,6 @@ enum {
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BLK_MQ_REQ_RESERVED = (__force blk_mq_req_flags_t)(1 << 1),
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/* set RQF_PM */
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BLK_MQ_REQ_PM = (__force blk_mq_req_flags_t)(1 << 2),
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/* set RQF_PREEMPT */
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BLK_MQ_REQ_PREEMPT = (__force blk_mq_req_flags_t)(1 << 3),
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};
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struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
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@ -79,9 +79,6 @@ typedef __u32 __bitwise req_flags_t;
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#define RQF_MQ_INFLIGHT ((__force req_flags_t)(1 << 6))
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/* don't call prep for this one */
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#define RQF_DONTPREP ((__force req_flags_t)(1 << 7))
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/* set for "ide_preempt" requests and also for requests for which the SCSI
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"quiesce" state must be ignored. */
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#define RQF_PREEMPT ((__force req_flags_t)(1 << 8))
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/* vaguely specified driver internal error. Ignored by the block layer */
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#define RQF_FAILED ((__force req_flags_t)(1 << 10))
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/* don't warn about errors */
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@ -430,8 +427,7 @@ struct request_queue {
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unsigned long queue_flags;
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/*
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* Number of contexts that have called blk_set_pm_only(). If this
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* counter is above zero then only RQF_PM and RQF_PREEMPT requests are
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* processed.
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* counter is above zero then only RQF_PM requests are processed.
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*/
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atomic_t pm_only;
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