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

Browse source 
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
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8
drivers/s390/block/dcssblk.c
View file

@ -27,7 +27,8 @@
static int dcssblk_open(struct block_device *bdev, fmode_t mode);
static void dcssblk_release(struct gendisk *disk, fmode_t mode);
static void dcssblk_make_request(struct request_queue *q, struct bio *bio);
static blk_qc_t dcssblk_make_request(struct request_queue *q,
struct bio *bio);
static long dcssblk_direct_access(struct block_device *bdev, sector_t secnum,
void __pmem **kaddr, unsigned long *pfn);
@ -815,7 +816,7 @@ dcssblk_release(struct gendisk *disk, fmode_t mode)
up_write(&dcssblk_devices_sem);
}
static void
static blk_qc_t
dcssblk_make_request(struct request_queue *q, struct bio *bio)
{
struct dcssblk_dev_info *dev_info;
@ -874,9 +875,10 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio)
bytes_done += bvec.bv_len;
}
bio_endio(bio);
return;
return BLK_QC_T_NONE;
fail:
bio_io_error(bio);
return BLK_QC_T_NONE;
}
static long

5
drivers/s390/block/xpram.c
View file

@ -181,7 +181,7 @@ static unsigned long xpram_highest_page_index(void)
/*
* Block device make request function.
*/
static void xpram_make_request(struct request_queue *q, struct bio *bio)
static blk_qc_t xpram_make_request(struct request_queue *q, struct bio *bio)
{
xpram_device_t *xdev = bio->bi_bdev->bd_disk->private_data;
struct bio_vec bvec;
@ -223,9 +223,10 @@ static void xpram_make_request(struct request_queue *q, struct bio *bio)
}
}
bio_endio(bio);
return;
return BLK_QC_T_NONE;
fail:
bio_io_error(bio);
return BLK_QC_T_NONE;
}
static int xpram_getgeo(struct block_device *bdev, struct hd_geometry *geo)