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-rw-r--r--block/blk-mq.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 176698b2285b..2e4b3cad2a61 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1940,13 +1940,18 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule)
static void blk_mq_bio_to_request(struct request *rq, struct bio *bio,
unsigned int nr_segs)
{
+ int err;
+
if (bio->bi_opf & REQ_RAHEAD)
rq->cmd_flags |= REQ_FAILFAST_MASK;
rq->__sector = bio->bi_iter.bi_sector;
rq->write_hint = bio->bi_write_hint;
blk_rq_bio_prep(rq, bio, nr_segs);
- blk_crypto_rq_bio_prep(rq, bio, GFP_NOIO);
+
+ /* This can't fail, since GFP_NOIO includes __GFP_DIRECT_RECLAIM. */
+ err = blk_crypto_rq_bio_prep(rq, bio, GFP_NOIO);
+ WARN_ON_ONCE(err);
blk_account_io_start(rq);
}