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 4/6] blk-iolatency: splict blkcg_iolatency_free() from blkcg_iolatency_exit()
Date: Thu, 23 Sep 2021 21:46:29 +0800 [thread overview]
Message-ID: <20210923134631.105719-5-yukuai3@huawei.com> (raw)
In-Reply-To: <20210923134631.105719-1-yukuai3@huawei.com>
Prepare to split 'kfree(blkiolat)' from blkcg_iolatency_exit(), no
functional changes.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
block/blk-iolatency.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index c0545f9da549..f3b8848e6a46 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -648,10 +648,18 @@ static void blkcg_iolatency_exit(struct rq_qos *rqos)
kfree(blkiolat);
}
+static void blkcg_iolatency_free(struct rq_qos *rqos)
+{
+ struct blk_iolatency *blkiolat = BLKIOLATENCY(rqos);
+
+ kfree(blkiolat);
+}
+
static struct rq_qos_ops blkcg_iolatency_ops = {
.throttle = blkcg_iolatency_throttle,
.done_bio = blkcg_iolatency_done_bio,
.exit = blkcg_iolatency_exit,
+ .free = blkcg_iolatency_free,
};
static void blkiolatency_timer_fn(struct timer_list *t)
--
2.31.1
next prev parent reply other threads:[~2021-09-23 13:37 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 ` [PATCH 3/6] io-cost: introduce ioc_rqos_free() Yu Kuai
2021-09-23 13:46 ` Yu Kuai [this message]
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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