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block: don't bother with bounce limits for make_request drivers

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We only call blk_queue_bounce for request-based drivers, so stop messing
with it for make_request based drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2017-06-19 09:26:23 +02:00
committed by Jens Axboe
parent 1c4bc3ab9a
commit 0b0bcacc3b
9 changed files with 10 additions and 11 deletions
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block/blk-mq.c
+5
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@@ -2349,6 +2349,11 @@ struct request_queue *blk_mq_init_allocated_queue(struct blk_mq_tag_set *set,
blk_queue_make_request(q, blk_mq_make_request);
/*
* by default assume old behaviour and bounce for any highmem page
*/
blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
/*
* Do this after blk_queue_make_request() overrides it...
*/