blk-mq: add blk_mq_alloc_request_hctx

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For some protocols like NVMe over Fabrics we need to be able to send
initialization commands to a specific queue.

Based on an earlier patch from Christoph Hellwig <hch@lst.de>.

Signed-off-by: Ming Lin <ming.l@ssi.samsung.com>
[hch: disallow sleeping allocation, req_op fixes]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Ming Lin 2016-06-13 16:45:21 +02:00 • committed by Jens Axboe

parent 9e2d23f19e

commit 1f5bd336b9

2 changed files with 41 additions and 0 deletions

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include/linux/blk-mq.h

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