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Commit 9e5a7e22 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Martin K. Petersen
Browse files

blk-mq: export blk_mq_map_queues 



This will allow SCSI to have a single blk_mq_ops structure that either
lets the LLDD map the queues to PCIe MSIx vectors or use the default.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarJens Axboe <axboe@kernel.dk>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 69d72ac8

block/blk-mq-cpumap.c

+1 −0
Original line number Diff line number Diff line
@@ -87,6 +87,7 @@ int blk_mq_map_queues(struct blk_mq_tag_set *set) 
	free_cpumask_var(cpus);

	return 0;

}

EXPORT_SYMBOL_GPL(blk_mq_map_queues);



/*

 * We have no quick way of doing reverse lookups. This is only used at

block/blk-mq.h

+0 −1
Original line number Diff line number Diff line
@@ -38,7 +38,6 @@ void blk_mq_disable_hotplug(void); 
/*

 * CPU -> queue mappings

 */

int blk_mq_map_queues(struct blk_mq_tag_set *set);

extern int blk_mq_hw_queue_to_node(unsigned int *map, unsigned int);



static inline struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *q,

include/linux/blk-mq.h

+1 −0
Original line number Diff line number Diff line
@@ -237,6 +237,7 @@ void blk_mq_unfreeze_queue(struct request_queue *q); 
void blk_mq_freeze_queue_start(struct request_queue *q);

int blk_mq_reinit_tagset(struct blk_mq_tag_set *set);



int blk_mq_map_queues(struct blk_mq_tag_set *set);

void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues);



/*