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blk-mq: Document the blk_mq_hw_queue_to_node() arguments

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Document the meaning of the blk_mq_hw_queue_to_node() arguments.

Reviewed-by: Chaitanya Kulkarni <chiatanya.kulkarni@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Bart Van Assche 2019-05-30 17:00:53 -07:00 committed by Jens Axboe
parent ef025d7ec2
commit cd669f88b1
1 changed files with 5 additions and 1 deletions
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6
block/blk-mq-cpumap.c
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@ -60,7 +60,11 @@ int blk_mq_map_queues(struct blk_mq_queue_map *qmap)
} }
EXPORT_SYMBOL_GPL(blk_mq_map_queues); EXPORT_SYMBOL_GPL(blk_mq_map_queues);
/* /**
* blk_mq_hw_queue_to_node - Look up the memory node for a hardware queue index
* @qmap: CPU to hardware queue map.
* @index: hardware queue index.
*
* We have no quick way of doing reverse lookups. This is only used at * We have no quick way of doing reverse lookups. This is only used at
* queue init time, so runtime isn't important. * queue init time, so runtime isn't important.
*/ */