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-rw-r--r--block/blk-mq.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 1b8b50d..883f720 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -860,6 +860,8 @@ static void blk_mq_make_request(struct request_queue *q, struct bio *bio)
ctx = blk_mq_get_ctx(q);
hctx = q->mq_ops->map_queue(q, ctx->cpu);
+ if (is_sync)
+ rw |= REQ_SYNC;
trace_block_getrq(q, bio, rw);
rq = __blk_mq_alloc_request(hctx, GFP_ATOMIC, false);
if (likely(rq))
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