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authorChristoph Hellwig <hch@lst.de>2017-06-19 09:26:23 +0200
committerJens Axboe <axboe@kernel.dk>2017-06-27 12:13:45 -0600
commit0b0bcacc3b4300c4bba0bacb4c7a279b2728f331 (patch)
treeaa0742924c868090ad708668dc757922e1971fd4 /block
parent1c4bc3ab9a064d98cdf6de6b44f89d5c3757fa32 (diff)
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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')
-rw-r--r--block/blk-core.c5
-rw-r--r--block/blk-mq.c5
-rw-r--r--block/blk-settings.c5
3 files changed, 10 insertions, 5 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index af393d5a9680..8699c423fa6e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -989,6 +989,11 @@ int blk_init_allocated_queue(struct request_queue *q)
*/
blk_queue_make_request(q, blk_queue_bio);
+ /*
+ * by default assume old behaviour and bounce for any highmem page
+ */
+ blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
+
q->sg_reserved_size = INT_MAX;
/* Protect q->elevator from elevator_change */
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;
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 4fa81ed383ca..be1f115b538b 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -172,11 +172,6 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
q->nr_batching = BLK_BATCH_REQ;
blk_set_default_limits(&q->limits);
-
- /*
- * by default assume old behaviour and bounce for any highmem page
- */
- blk_queue_bounce_limit(q, BLK_BOUNCE_HIGH);
}
EXPORT_SYMBOL(blk_queue_make_request);