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From: Yu Kuai <yukuai3@huawei.com>
To: <axboe@kernel.dk>, <tj@kernel.org>
Cc: <linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<cgroups@vger.kernel.org>, <yukuai3@huawei.com>,
	<yi.zhang@huawei.com>
Subject: [PATCH 3/6] io-cost: introduce ioc_rqos_free()
Date: Thu, 23 Sep 2021 21:46:28 +0800	[thread overview]
Message-ID: <20210923134631.105719-4-yukuai3@huawei.com> (raw)
In-Reply-To: <20210923134631.105719-1-yukuai3@huawei.com>

Prepare to split 'kfree(ioc)' from ioc_rqos_exit(), no functional changes.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
 block/blk-iocost.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index b3880e4ba22a..b4a6c1f70eb0 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -2813,6 +2813,13 @@ static void ioc_rqos_exit(struct rq_qos *rqos)
 	kfree(ioc);
 }
 
+static void ioc_rqos_free(struct rq_qos *rqos)
+{
+	struct ioc *ioc = rqos_to_ioc(rqos);
+
+	kfree(ioc);
+}
+
 static struct rq_qos_ops ioc_rqos_ops = {
 	.throttle = ioc_rqos_throttle,
 	.merge = ioc_rqos_merge,
@@ -2820,6 +2827,7 @@ static struct rq_qos_ops ioc_rqos_ops = {
 	.done = ioc_rqos_done,
 	.queue_depth_changed = ioc_rqos_queue_depth_changed,
 	.exit = ioc_rqos_exit,
+	.free = ioc_rqos_free,
 };
 
 static int blk_iocost_init(struct request_queue *q)
-- 
2.31.1


  parent reply	other threads:[~2021-09-23 13:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-23 13:46 [PATCH 0/6] fix uaf in rq_qos_done_io() Yu Kuai
2021-09-23 13:46 ` [PATCH 1/6] rq-qos: introduce rq_qos_free() Yu Kuai
2021-09-23 13:46 ` [PATCH 2/6] blk-wbt: introduce wbt_free() Yu Kuai
2021-09-23 13:46 ` Yu Kuai [this message]
2021-09-23 13:46 ` [PATCH 4/6] blk-iolatency: splict blkcg_iolatency_free() from blkcg_iolatency_exit() Yu Kuai
2021-09-23 13:46 ` [PATCH 5/6] blk-ioprio: introduce blkcg_ioprio_free() Yu Kuai
2021-09-23 13:46 ` [PATCH 6/6] rq-qos: fix uaf in rq_qos_done_io() Yu Kuai
2021-09-24  0:41   ` Ming Lei
2021-09-24  1:23     ` yukuai (C)
2021-09-24  1:49       ` Ming Lei
2021-09-24  8:19         ` yukuai (C)

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