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block: re-use existing 'reading' variable instead of checking direction again
author
majianpeng
<majianpeng@gmail.com>
Wed, 21 Dec 2011 14:27:24 +0000
(15:27 +0100)
committer
Jens Axboe
<axboe@kernel.dk>
Wed, 21 Dec 2011 14:27:24 +0000
(15:27 +0100)
Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-map.c
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diff --git
a/block/blk-map.c
b/block/blk-map.c
index
164cd00
..
623e1cd
100644
(file)
--- a/
block/blk-map.c
+++ b/
block/blk-map.c
@@
-311,7
+311,7
@@
int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
if (IS_ERR(bio))
return PTR_ERR(bio);
- if (
rq_data_dir(rq) == WRITE
)
+ if (
!reading
)
bio->bi_rw |= REQ_WRITE;
if (do_copy)