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/block/umem.c b/drivers/block/umem.c
index 04d6579..7939b9f 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -524,7 +524,7 @@
return !!blk_check_plugged(mm_unplug, card, sizeof(struct blk_plug_cb));
}
-static void mm_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t mm_make_request(struct request_queue *q, struct bio *bio)
{
struct cardinfo *card = q->queuedata;
pr_debug("mm_make_request %llu %u\n",
@@ -541,7 +541,7 @@
activate(card);
spin_unlock_irq(&card->lock);
- return;
+ return BLK_QC_T_NONE;
}
static irqreturn_t mm_interrupt(int irq, void *__card)