block: re-use existing 'reading' variable instead of checking directi…

…on again Signed-off-by: majianpeng <majianpeng@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
wshizhx · Dec 21, 2011 · 609f6ea · 609f6ea
1 parent 6ae0516
commit 609f6ea
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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)