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-rw-r--r--drivers/block/nvme-core.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index 9682e29b4171..cae7cac6cc43 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1453,9 +1453,12 @@ static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
nvmeq->q_db = &dev->dbs[qid * 2 * dev->db_stride];
nvmeq->q_depth = depth;
nvmeq->qid = qid;
- dev->queue_count++;
dev->queues[qid] = nvmeq;
+ /* make sure queue descriptor is set before queue count, for kthread */
+ mb();
+ dev->queue_count++;
+
return nvmeq;
free_cqdma: