From: Bart Van Assche bvanassche@acm.org
[ Upstream commit a4d34da715e3cb7e0741fe603dcd511bed067e00 ]
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 --- block/blk-core.c | 7 +++---- block/blk-mq-debugfs.c | 1 - block/blk-mq.c | 2 -- include/linux/blk-mq.h | 2 -- include/linux/blkdev.h | 6 +----- 5 files changed, 4 insertions(+), 14 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c index 10696f9fb6ac6..a00bce9f46d88 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -424,11 +424,11 @@ EXPORT_SYMBOL(blk_cleanup_queue); /** * blk_queue_enter() - try to increase q->q_usage_counter * @q: request queue pointer - * @flags: BLK_MQ_REQ_NOWAIT, BLK_MQ_REQ_PM and/or BLK_MQ_REQ_PREEMPT + * @flags: BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PM */ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags) { - const bool pm = flags & (BLK_MQ_REQ_PM | BLK_MQ_REQ_PREEMPT); + const bool pm = flags & BLK_MQ_REQ_PM;
while (true) { bool success = false; @@ -630,8 +630,7 @@ struct request *blk_get_request(struct request_queue *q, unsigned int op, struct request *req;
WARN_ON_ONCE(op & REQ_NOWAIT); - WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PM | - BLK_MQ_REQ_PREEMPT)); + WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PM));
req = blk_mq_alloc_request(q, op, flags); if (!IS_ERR(req) && q->mq_ops->initialize_rq_fn) diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index e21eed20a1551..4d6e83e5b4429 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -298,7 +298,6 @@ static const char *const rqf_name[] = { RQF_NAME(MIXED_MERGE), RQF_NAME(MQ_INFLIGHT), RQF_NAME(DONTPREP), - RQF_NAME(PREEMPT), RQF_NAME(FAILED), RQF_NAME(QUIET), RQF_NAME(ELVPRIV), diff --git a/block/blk-mq.c b/block/blk-mq.c index 0072ffa50b46e..2a1eff60c7975 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -294,8 +294,6 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data, rq->cmd_flags = data->cmd_flags; if (data->flags & BLK_MQ_REQ_PM) rq->rq_flags |= RQF_PM; - if (data->flags & BLK_MQ_REQ_PREEMPT) - rq->rq_flags |= RQF_PREEMPT; if (blk_queue_io_stat(data->q)) rq->rq_flags |= RQF_IO_STAT; INIT_LIST_HEAD(&rq->queuelist); diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index c9ecfd8b03381..f8ea27423d1d8 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -448,8 +448,6 @@ enum { BLK_MQ_REQ_RESERVED = (__force blk_mq_req_flags_t)(1 << 1), /* set RQF_PM */ BLK_MQ_REQ_PM = (__force blk_mq_req_flags_t)(1 << 2), - /* set RQF_PREEMPT */ - BLK_MQ_REQ_PREEMPT = (__force blk_mq_req_flags_t)(1 << 3), };
struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op, diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 033eb5f73b654..4a6e33d382429 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -79,9 +79,6 @@ typedef __u32 __bitwise req_flags_t; #define RQF_MQ_INFLIGHT ((__force req_flags_t)(1 << 6)) /* don't call prep for this one */ #define RQF_DONTPREP ((__force req_flags_t)(1 << 7)) -/* set for "ide_preempt" requests and also for requests for which the SCSI - "quiesce" state must be ignored. */ -#define RQF_PREEMPT ((__force req_flags_t)(1 << 8)) /* vaguely specified driver internal error. Ignored by the block layer */ #define RQF_FAILED ((__force req_flags_t)(1 << 10)) /* don't warn about errors */ @@ -430,8 +427,7 @@ struct request_queue { unsigned long queue_flags; /* * Number of contexts that have called blk_set_pm_only(). If this - * counter is above zero then only RQF_PM and RQF_PREEMPT requests are - * processed. + * counter is above zero then only RQF_PM requests are processed. */ atomic_t pm_only;