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authorChristoph Hellwig <hch@lst.de>2016-11-01 15:12:47 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2016-11-08 23:30:00 +0100
commit9e5a7e22951bc12ee45cb617919d57b5efce56b5 (patch)
tree87dffd410bc4974fec641da229105cac08c163a0
parentscsi: ufs: change device rails hpm mode ramp up sequence (diff)
downloadlinux-9e5a7e22951bc12ee45cb617919d57b5efce56b5.tar.xz
linux-9e5a7e22951bc12ee45cb617919d57b5efce56b5.zip
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: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r--block/blk-mq-cpumap.c1
-rw-r--r--block/blk-mq.h1
-rw-r--r--include/linux/blk-mq.h1
3 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
index 19b1d9c5f07e..8e61e8640e17 100644
--- a/block/blk-mq-cpumap.c
+++ b/block/blk-mq-cpumap.c
@@ -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
diff --git a/block/blk-mq.h b/block/blk-mq.h
index e5d25249028c..5347f011e90d 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -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,
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 535ab2e13d2e..6c0fb259581f 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -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);
/*