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authorChristoph Hellwig <hch@lst.de>2017-06-19 10:26:23 +0300
committerJens Axboe <axboe@kernel.dk>2017-06-27 21:13:45 +0300
commit0b0bcacc3b4300c4bba0bacb4c7a279b2728f331 (patch)
treeaa0742924c868090ad708668dc757922e1971fd4 /block/blk-mq.c
parent1c4bc3ab9a064d98cdf6de6b44f89d5c3757fa32 (diff)
downloadlinux-0b0bcacc3b4300c4bba0bacb4c7a279b2728f331.tar.xz
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 <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
-rw-r--r--block/blk-mq.c5
1 files changed, 5 insertions, 0 deletions
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
@@ -2350,6 +2350,11 @@ 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...
*/
q->nr_requests = set->queue_depth;