Tejun Heo wrote:
Implement accessors - blk_rq_pos(), blk_rq_sectors() and
blk_rq_cur_sectors() which return rq->sector, rq->hard_nr_sectors and
Well, blk_rq_pos() returns rq->hard_sector, not rq->sector, doesn't it?
rq->hard_cur_sectors respectively and convert direct references of the
said fields to the accessors.
This is in preparation of request data length handling cleanup.
const added to struct request * parameter to accessors as suggested by
Geert Uytterhoeven.
[ Impact: cleanup ]
Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@xxxxxxxxxxx>
Acked-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Tested-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
Acked-by: Grant Likely <grant.likely@xxxxxxxxxxxx>
Acked-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 7ab93d9..b921d91 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -833,13 +833,30 @@ static inline void blk_run_address_space(struct address_space *mapping)
extern void blkdev_dequeue_request(struct request *req);
/*
- * 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.
+ * blk_rq_pos() : the current sector
+ * blk_rq_bytes() : bytes left in the entire request
+ * blk_rq_cur_bytes() : bytes left in the current segment
+ * blk_rq_sectors() : sectors left in the entire request
+ * blk_rq_cur_sectors() : sectors left in the current segment
*/
+static inline sector_t blk_rq_pos(const struct request *rq)
+{
+ return rq->hard_sector;
+}
+
[...]
MBR, Sergei
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