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block: change ->make_request_fn() and users to return a queue cookie

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No functional changes in this patch, but it prepares us for returning
a more useful cookie related to the IO that was queued up.

Signed-off-by: Jens Axboe <axboe@fb.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
This commit is contained in:
Jens Axboe
2015-11-05 10:41:16 -07:00
parent 8e483ed134
commit dece16353e
28 changed files with 127 additions and 71 deletions
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3
drivers/nvdimm/blk.c
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@@ -161,7 +161,7 @@ static int nd_blk_do_bvec(struct nd_blk_device *blk_dev,
return err;
}
static void nd_blk_make_request(struct request_queue *q, struct bio *bio)
static blk_qc_t nd_blk_make_request(struct request_queue *q, struct bio *bio)
{
struct block_device *bdev = bio->bi_bdev;
struct gendisk *disk = bdev->bd_disk;
@@ -208,6 +208,7 @@ static void nd_blk_make_request(struct request_queue *q, struct bio *bio)
out:
bio_endio(bio);
return BLK_QC_T_NONE;
}
static int nd_blk_rw_bytes(struct nd_namespace_common *ndns,