Signed-off-by: James Bottomley <[EMAIL PROTECTED]>
---
include/linux/blkdev.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 90392a9..a526066 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -676,6 +676,11 @@ extern void blk_complete_request(struct request *);
extern unsigned int blk_rq_bytes(struct request *rq);
extern unsigned int blk_rq_cur_bytes(struct request *rq);
+static inline int blk_rq_drain_size(struct request *rq)
+{
+ return rq->q->dma_drain_size;
+}
+
static inline void blkdev_dequeue_request(struct request *req)
{
elv_dequeue_request(req->q, req);
--
1.5.3.8
-
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