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authorKeith Busch <keith.busch@intel.com>2014-10-18 01:46:35 +0200
committerJens Axboe <axboe@fb.com>2015-01-28 17:44:11 +0100
commitfebf71588c2a750e04dc2a8b0824ce120c48bd9e (patch)
tree2f1c48dda46cd66ec3d72b025753cd5c856e6a7c /drivers/md/dm.c
parentblk-mq: add tag allocation policy (diff)
downloadlinux-febf71588c2a750e04dc2a8b0824ce120c48bd9e.tar.xz
linux-febf71588c2a750e04dc2a8b0824ce120c48bd9e.zip
block: require blk_rq_prep_clone() be given an initialized clone request
Prepare to allow blk_rq_prep_clone() to accept clone requests that were allocated from blk-mq request queues. As such the blk_rq_prep_clone() caller must first initialize the clone request. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to '')
-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 b98cd9d84435..f251633a51af 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1719,6 +1719,7 @@ static int setup_clone(struct request *clone, struct request *rq,
{
int r;
+ blk_rq_init(NULL, rq);
r = blk_rq_prep_clone(clone, rq, tio->md->bs, GFP_ATOMIC,
dm_rq_bio_constructor, tio);
if (r)