From e5a94f56845bb4b272d82e84b5a1e2080b07ba82 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Mon, 1 Aug 2011 10:31:06 +0200 Subject: [PATCH] blk-throttle: correctly determine sync bio read request is always sync. Using rw_is_sync() to determine if a bio is sync. Signed-off-by: Shaohua Li Signed-off-by: Jens Axboe --- block/blk-throttle.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/blk-throttle.c b/block/blk-throttle.c index f6a7941..a19f58c 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -746,7 +746,7 @@ static bool tg_may_dispatch(struct throtl_data *td, struct throtl_grp *tg, static void throtl_charge_bio(struct throtl_grp *tg, struct bio *bio) { bool rw = bio_data_dir(bio); - bool sync = bio->bi_rw & REQ_SYNC; + bool sync = rw_is_sync(bio->bi_rw); /* Charge the bio to the group */ tg->bytes_disp[rw] += bio->bi_size; @@ -1150,7 +1150,7 @@ int blk_throtl_bio(struct request_queue *q, struct bio **biop) if (tg_no_rule_group(tg, rw)) { blkiocg_update_dispatch_stats(&tg->blkg, bio->bi_size, - rw, bio->bi_rw & REQ_SYNC); + rw, rw_is_sync(bio->bi_rw)); rcu_read_unlock(); return 0; } -- 2.7.4