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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-10 03:29:33 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-10 03:29:33 +0300 |
| commit | 12e3d3cdd975fe986cc5c35f60b1467a8ec20b80 (patch) | |
| tree | 14ec935d2e15f454ba69353fcf5329ac67f72e4f /block/blk-mq.h | |
| parent | 48915c2cbc77eceec2005afb695ac658fede4e0d (diff) | |
| parent | 8ec2ef2b66ea2fd00acc28aca8edaad441dbb424 (diff) | |
| download | linux-12e3d3cdd975fe986cc5c35f60b1467a8ec20b80.tar.xz | |
Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block
Pull blk-mq irq/cpu mapping updates from Jens Axboe:
"This is the block-irq topic branch for 4.9-rc. It's mostly from
Christoph, and it allows drivers to specify their own mappings, and
more importantly, to share the blk-mq mappings with the IRQ affinity
mappings. It's a good step towards making this work better out of the
box"
* 'for-4.9/block-irq' of git://git.kernel.dk/linux-block:
blk_mq: linux/blk-mq.h does not include all the headers it depends on
blk-mq: kill unused blk_mq_create_mq_map()
blk-mq: get rid of the cpumask in struct blk_mq_tags
nvme: remove the post_scan callout
nvme: switch to use pci_alloc_irq_vectors
blk-mq: provide a default queue mapping for PCI device
blk-mq: allow the driver to pass in a queue mapping
blk-mq: remove ->map_queue
blk-mq: only allocate a single mq_map per tag_set
blk-mq: don't redistribute hardware queues on a CPU hotplug event
Diffstat (limited to 'block/blk-mq.h')
| -rw-r--r-- | block/blk-mq.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/block/blk-mq.h b/block/blk-mq.h index 9b15d2ef7f7b..df6474cb5a4c 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -45,11 +45,15 @@ 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, + int cpu) +{ + return q->queue_hw_ctx[q->mq_map[cpu]]; +} + /* * sysfs helpers */ |