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authorJens Axboe <axboe@suse.de>2006-01-10 10:48:02 +0100
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 08:37:08 -0800
commitdaef265f1590cf3e6de989d074041a280c82d58b (patch)
tree3d869c801561f9bfafa6dabd30211379cd0bb55d /drivers/md
parent00d6da9b4d6707b808481372537adb0fb38f99b3 (diff)
downloadop-kernel-dev-daef265f1590cf3e6de989d074041a280c82d58b.zip
op-kernel-dev-daef265f1590cf3e6de989d074041a280c82d58b.tar.gz
[PATCH] dm: don't enable bouncing by default
DM doesn't need to bounce bio's on its own, but the block layer defaults to that in blk_queue_make_request(). The lower level drivers should bounce ios themselves, that is what they need to do if not layered below dm anyways. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 5c210b0..097d1e54 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -768,6 +768,7 @@ static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
md->queue->backing_dev_info.congested_fn = dm_any_congested;
md->queue->backing_dev_info.congested_data = md;
blk_queue_make_request(md->queue, dm_request);
+ blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY);
md->queue->unplug_fn = dm_unplug_all;
md->queue->issue_flush_fn = dm_flush_all;
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