From 840e1b55bb752c6617a85eb01d15432bebe8c559 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Mon, 18 May 2020 15:47:32 +0800 Subject: scsi: core: Refactor scsi_mq_setup_tags function shost->tag_set is used too many times, introduce temporary parameter tag_set instead of &shost->tag_set. Link: https://lore.kernel.org/r/20200518074732.39679-1-yebin10@huawei.com Reviewed-by: Bart Van Assche Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_lib.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) (limited to 'drivers/scsi/scsi_lib.c') diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 4ed694b9f99b..c163fa22267c 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1849,6 +1849,7 @@ struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev) int scsi_mq_setup_tags(struct Scsi_Host *shost) { unsigned int cmd_size, sgl_size; + struct blk_mq_tag_set *tag_set = &shost->tag_set; sgl_size = max_t(unsigned int, sizeof(struct scatterlist), scsi_mq_inline_sgl_size(shost)); @@ -1857,21 +1858,21 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost) cmd_size += sizeof(struct scsi_data_buffer) + sizeof(struct scatterlist) * SCSI_INLINE_PROT_SG_CNT; - memset(&shost->tag_set, 0, sizeof(shost->tag_set)); + memset(tag_set, 0, sizeof(*tag_set)); if (shost->hostt->commit_rqs) - shost->tag_set.ops = &scsi_mq_ops; + tag_set->ops = &scsi_mq_ops; else - shost->tag_set.ops = &scsi_mq_ops_no_commit; - shost->tag_set.nr_hw_queues = shost->nr_hw_queues ? : 1; - shost->tag_set.queue_depth = shost->can_queue; - shost->tag_set.cmd_size = cmd_size; - shost->tag_set.numa_node = NUMA_NO_NODE; - shost->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; - shost->tag_set.flags |= + tag_set->ops = &scsi_mq_ops_no_commit; + tag_set->nr_hw_queues = shost->nr_hw_queues ? : 1; + tag_set->queue_depth = shost->can_queue; + tag_set->cmd_size = cmd_size; + tag_set->numa_node = NUMA_NO_NODE; + tag_set->flags = BLK_MQ_F_SHOULD_MERGE; + tag_set->flags |= BLK_ALLOC_POLICY_TO_MQ_FLAG(shost->hostt->tag_alloc_policy); - shost->tag_set.driver_data = shost; + tag_set->driver_data = shost; - return blk_mq_alloc_tag_set(&shost->tag_set); + return blk_mq_alloc_tag_set(tag_set); } void scsi_mq_destroy_tags(struct Scsi_Host *shost) -- cgit v1.2.3