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

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 <[email protected]>
Acked-by: Christoph Hellwig <[email protected]>
Acked-by: Keith Busch <[email protected]>
This commit is contained in:
Jens Axboe 2015-11-05 10:41:16 -07:00
commit dece16353e
28 changed files with 127 additions and 71 deletions

View file

@ -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,

View file

@ -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,

View file

@ -64,7 +64,7 @@ static void pmem_do_bvec(struct pmem_device *pmem, struct page *page,
kunmap_atomic(mem);
}
static void pmem_make_request(struct request_queue *q, struct bio *bio)
static blk_qc_t pmem_make_request(struct request_queue *q, struct bio *bio)
{
bool do_acct;
unsigned long start;
@ -84,6 +84,7 @@ static void pmem_make_request(struct request_queue *q, struct bio *bio)
wmb_pmem();
bio_endio(bio);
return BLK_QC_T_NONE;
}
static int pmem_rw_page(struct block_device *bdev, sector_t sector,