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authorChristoph Hellwig <hch@lst.de>2016-09-14 16:18:55 +0200
committerJens Axboe <axboe@fb.com>2016-09-15 08:42:03 -0600
commitda695ba236b993f07a540d35c17f271ef08c89f3 (patch)
treebcf5c0624f3e3889b8c1284f1965cf90b265b78e /block/blk-mq.h
parent7d7e0f90b70f6c5367c2d1c9a7e87dd228bd0816 (diff)
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blk-mq: allow the driver to pass in a queue mapping
This allows drivers specify their own queue mapping by overriding the setup-time function that builds the mq_map. This can be used for example to build the map based on the MSI-X vector mapping provided by the core interrupt layer for PCI devices. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq.h')
-rw-r--r--block/blk-mq.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h
index ec774bf4aea2..c92bb7debf85 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -47,9 +47,7 @@ void blk_mq_disable_hotplug(void);
/*
* CPU -> queue mappings
*/
-extern unsigned int *blk_mq_make_queue_map(struct blk_mq_tag_set *set);
-extern int blk_mq_update_queue_map(unsigned int *map, unsigned int nr_queues,
- const struct cpumask *online_mask);
+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,