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-rw-r--r--include/linux/blkdev.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 3a13fbe13e08..74469a4dc0a1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -641,6 +641,9 @@ static inline bool blk_account_rq(struct request *rq)
#define rq_data_dir(rq) (op_is_write(req_op(rq)) ? WRITE : READ)
+#define rq_dma_dir(rq) \
+ (op_is_write(req_op(rq)) ? DMA_TO_DEVICE : DMA_FROM_DEVICE)
+
static inline bool queue_is_mq(struct request_queue *q)
{
return q->mq_ops;