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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/btt.c
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@@ -1150,7 +1150,7 @@ static int btt_do_bvec(struct btt *btt, struct bio_integrity_payload *bip,
return ret;
}
static void btt_make_request(struct request_queue *q, struct bio *bio)
static blk_qc_t btt_make_request(struct request_queue *q, struct bio *bio)
{
struct bio_integrity_payload *bip = bio_integrity(bio);
struct btt *btt = q->queuedata;
@@ -1198,6 +1198,7 @@ static void btt_make_request(struct request_queue *q, struct bio *bio)
out:
bio_endio(bio);
return BLK_QC_T_NONE;
}
static int btt_rw_page(struct block_device *bdev, sector_t sector,