From e7008ff5c61a13e673344d3048baaf8e0652fa87 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 25 Aug 2017 13:46:31 -0700 Subject: [PATCH] scsi: Document which queue type a function is intended for Rename several functions to make it easy to see which queue type a function is intended for. Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Johannes Thumshirn Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_lib.c | 23 ++++++++++++----------- drivers/scsi/scsi_priv.h | 2 +- drivers/scsi/scsi_scan.c | 2 +- 3 files changed, 14 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 2afca92445c9..9e8ce0d66c5a 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2001,8 +2001,8 @@ static enum blk_eh_timer_return scsi_timeout(struct request *req, return scsi_times_out(req); } -static int scsi_init_request(struct blk_mq_tag_set *set, struct request *rq, - unsigned int hctx_idx, unsigned int numa_node) +static int scsi_mq_init_request(struct blk_mq_tag_set *set, struct request *rq, + unsigned int hctx_idx, unsigned int numa_node) { struct Scsi_Host *shost = set->driver_data; const bool unchecked_isa_dma = shost->unchecked_isa_dma; @@ -2026,8 +2026,8 @@ static int scsi_init_request(struct blk_mq_tag_set *set, struct request *rq, return 0; } -static void scsi_exit_request(struct blk_mq_tag_set *set, struct request *rq, - unsigned int hctx_idx) +static void scsi_mq_exit_request(struct blk_mq_tag_set *set, struct request *rq, + unsigned int hctx_idx) { struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq); @@ -2104,7 +2104,8 @@ void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q) } EXPORT_SYMBOL_GPL(__scsi_init_queue); -static int scsi_init_rq(struct request_queue *q, struct request *rq, gfp_t gfp) +static int scsi_old_init_rq(struct request_queue *q, struct request *rq, + gfp_t gfp) { struct Scsi_Host *shost = q->rq_alloc_data; const bool unchecked_isa_dma = shost->unchecked_isa_dma; @@ -2134,7 +2135,7 @@ fail: return -ENOMEM; } -static void scsi_exit_rq(struct request_queue *q, struct request *rq) +static void scsi_old_exit_rq(struct request_queue *q, struct request *rq) { struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq); @@ -2144,7 +2145,7 @@ static void scsi_exit_rq(struct request_queue *q, struct request *rq) cmd->sense_buffer); } -struct request_queue *scsi_alloc_queue(struct scsi_device *sdev) +struct request_queue *scsi_old_alloc_queue(struct scsi_device *sdev) { struct Scsi_Host *shost = sdev->host; struct request_queue *q; @@ -2155,8 +2156,8 @@ struct request_queue *scsi_alloc_queue(struct scsi_device *sdev) q->cmd_size = sizeof(struct scsi_cmnd) + shost->hostt->cmd_size; q->rq_alloc_data = shost; q->request_fn = scsi_request_fn; - q->init_rq_fn = scsi_init_rq; - q->exit_rq_fn = scsi_exit_rq; + q->init_rq_fn = scsi_old_init_rq; + q->exit_rq_fn = scsi_old_exit_rq; q->initialize_rq_fn = scsi_initialize_rq; if (blk_init_allocated_queue(q) < 0) { @@ -2180,8 +2181,8 @@ static const struct blk_mq_ops scsi_mq_ops = { #ifdef CONFIG_BLK_DEBUG_FS .show_rq = scsi_show_rq, #endif - .init_request = scsi_init_request, - .exit_request = scsi_exit_request, + .init_request = scsi_mq_init_request, + .exit_request = scsi_mq_exit_request, .initialize_rq_fn = scsi_initialize_rq, .map_queues = scsi_map_queues, }; diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index c11c1f9c912c..5c6d016a5ae9 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -88,7 +88,7 @@ extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason); extern void scsi_io_completion(struct scsi_cmnd *, unsigned int); extern void scsi_run_host_queues(struct Scsi_Host *shost); extern void scsi_requeue_run_queue(struct work_struct *work); -extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev); +extern struct request_queue *scsi_old_alloc_queue(struct scsi_device *sdev); extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev); extern void scsi_start_queue(struct scsi_device *sdev); extern int scsi_mq_setup_tags(struct Scsi_Host *shost); diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index fd88dabd599d..e7818afeda2b 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -268,7 +268,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, if (shost_use_blk_mq(shost)) sdev->request_queue = scsi_mq_alloc_queue(sdev); else - sdev->request_queue = scsi_alloc_queue(sdev); + sdev->request_queue = scsi_old_alloc_queue(sdev); if (!sdev->request_queue) { /* release fn is set up in scsi_sysfs_device_initialise, so * have to free and put manually here */