Messages in this thread Patch in this message | | | Subject | [PATCH]blk-throttle: correctly determine sync bio | From | Shaohua Li <> | Date | Mon, 01 Aug 2011 15:39:57 +0800 |
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read request is always sync. Using rw_is_sync() to determine if a bio is sync.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
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; }
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