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-rw-r--r--include/linux/blkdev.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 3b212f02db8..aa2341df793 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -737,6 +737,14 @@ extern void end_dequeued_request(struct request *, int);
extern void blk_complete_request(struct request *);
/*
+ * blk_end_request() takes bytes instead of sectors as a complete size.
+ * blk_rq_bytes() returns bytes left to complete in the entire request.
+ * blk_rq_cur_bytes() returns bytes left to complete in the current segment.
+ */
+extern unsigned int blk_rq_bytes(struct request *rq);
+extern unsigned int blk_rq_cur_bytes(struct request *rq);
+
+/*
* end_that_request_first/chunk() takes an uptodate argument. we account
* any value <= as an io error. 0 means -EIO for compatability reasons,
* any other < 0 value is the direct error type. An uptodate value of