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block: remove support for bio remapping from ->make_request

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There is very little benefit in allowing to let a ->make_request
instance update the bios device and sector and loop around it in
__generic_make_request when we can archive the same through calling
generic_make_request from the driver and letting the loop in
generic_make_request handle it.

Note that various drivers got the return value from ->make_request and
returned non-zero values for errors.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Christoph Hellwig
2011-09-12 12:12:01 +02:00
committed by Jens Axboe
parent c20e8de27f
commit 5a7bbad27a
25 changed files with 155 additions and 219 deletions
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drivers/block/umem.c
+2 -2
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@@ -513,7 +513,7 @@ static void process_page(unsigned long data)
}
}
static int mm_make_request(struct request_queue *q, struct bio *bio)
static void mm_make_request(struct request_queue *q, struct bio *bio)
{
struct cardinfo *card = q->queuedata;
pr_debug("mm_make_request %llu %u\n",
@@ -525,7 +525,7 @@ static int mm_make_request(struct request_queue *q, struct bio *bio)
card->biotail = &bio->bi_next;
spin_unlock_irq(&card->lock);
return 0;
return;
}
static irqreturn_t mm_interrupt(int irq, void *__card)