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 <axboe@fb.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 5ed44fe..94a8f4a 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -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 @@
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 @@
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