From 46685d1a9521054fa3a7a352f6bb54166cd5b2c5 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 19 Jun 2017 09:26:24 +0200 Subject: blk-mq: don't bounce by default For historical reasons we default to bouncing highmem pages for all block queues. But the blk-mq drivers are easy to audit to ensure that we don't need this - scsi and mtip32xx set explicit limits and everyone else doesn't have any particular ones. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- block/blk-mq.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'block/blk-mq.c') diff --git a/block/blk-mq.c b/block/blk-mq.c index 41e3aeb51c9a..05dfa3f270ae 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2349,11 +2349,6 @@ 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 v1.2.3-59-g8ed1b