linux-kernel - [PATCH 1/4] blk-throttle: use 'READ/WRITE' instead of '0/1'

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Message-Id: <20220823013810.406075-2-yukuai1@huaweicloud.com>
Date:   Tue, 23 Aug 2022 09:38:07 +0800
From:   Yu Kuai <yukuai1@...weicloud.com>
To:     tj@...nel.org, axboe@...nel.dk
Cc:     cgroups@...r.kernel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, yukuai3@...wei.com,
        yukuai1@...weicloud.com, yi.zhang@...wei.com
Subject: [PATCH 1/4] blk-throttle: use 'READ/WRITE' instead of '0/1'

From: Yu Kuai <yukuai3@...wei.com>

Make the code easier to read, like everywhere else.

Signed-off-by: Yu Kuai <yukuai3@...wei.com>
Acked-by: Tejun Heo <tj@...nel.org>
---
 block/blk-throttle.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 9f5fe62afff9..fe1fa6441105 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -329,8 +329,8 @@ static struct bio *throtl_pop_queued(struct list_head *queued,
 /* init a service_queue, assumes the caller zeroed it */
 static void throtl_service_queue_init(struct throtl_service_queue *sq)
 {
-	INIT_LIST_HEAD(&sq->queued[0]);
-	INIT_LIST_HEAD(&sq->queued[1]);
+	INIT_LIST_HEAD(&sq->queued[READ]);
+	INIT_LIST_HEAD(&sq->queued[WRITE]);
 	sq->pending_tree = RB_ROOT_CACHED;
 	timer_setup(&sq->pending_timer, throtl_pending_timer_fn, 0);
 }
@@ -1106,7 +1106,7 @@ static int throtl_select_dispatch(struct throtl_service_queue *parent_sq)
 		nr_disp += throtl_dispatch_tg(tg);
 
 		sq = &tg->service_queue;
-		if (sq->nr_queued[0] || sq->nr_queued[1])
+		if (sq->nr_queued[READ] || sq->nr_queued[WRITE])
 			tg_update_disptime(tg);
 
 		if (nr_disp >= THROTL_QUANTUM)
-- 
2.31.1