From 0b0bcacc3b4300c4bba0bacb4c7a279b2728f331 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 19 Jun 2017 09:26:23 +0200 Subject: block: don't bother with bounce limits for make_request drivers 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 Signed-off-by: Jens Axboe --- block/blk-mq.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'block/blk-mq.c') diff --git a/block/blk-mq.c b/block/blk-mq.c index 05dfa3f270ae..41e3aeb51c9a 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -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... */ -- cgit v1.2.3