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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 2/6] blk-wbt: introduce wbt_free()
Date: Thu, 23 Sep 2021 21:46:27 +0800	[thread overview]
Message-ID: <20210923134631.105719-3-yukuai3@huawei.com> (raw)
In-Reply-To: <20210923134631.105719-1-yukuai3@huawei.com>

Prepare to split 'kfree(rwb)' from wbt_exit(), no functional changes.

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

diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 874c1c37bf0c..4190453d5e0b 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -694,6 +694,13 @@ static void wbt_exit(struct rq_qos *rqos)
 	kfree(rwb);
 }
 
+static void wbt_free(struct rq_qos *rqos)
+{
+	struct rq_wb *rwb = RQWB(rqos);
+
+	kfree(rwb);
+}
+
 /*
  * Disable wbt, if enabled by default.
  */
@@ -808,6 +815,7 @@ static struct rq_qos_ops wbt_rqos_ops = {
 	.cleanup = wbt_cleanup,
 	.queue_depth_changed = wbt_queue_depth_changed,
 	.exit = wbt_exit,
+	.free = wbt_free,
 #ifdef CONFIG_BLK_DEBUG_FS
 	.debugfs_attrs = wbt_debugfs_attrs,
 #endif
-- 
2.31.1


WARNING: multiple messages have this Message-ID (diff)
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 2/6] blk-wbt: introduce wbt_free()
Date: Thu, 23 Sep 2021 21:46:27 +0800	[thread overview]
Message-ID: <20210923134631.105719-3-yukuai3@huawei.com> (raw)
In-Reply-To: <20210923134631.105719-1-yukuai3@huawei.com>

Prepare to split 'kfree(rwb)' from wbt_exit(), no functional changes.

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

diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 874c1c37bf0c..4190453d5e0b 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -694,6 +694,13 @@ static void wbt_exit(struct rq_qos *rqos)
 	kfree(rwb);
 }
 
+static void wbt_free(struct rq_qos *rqos)
+{
+	struct rq_wb *rwb = RQWB(rqos);
+
+	kfree(rwb);
+}
+
 /*
  * Disable wbt, if enabled by default.
  */
@@ -808,6 +815,7 @@ static struct rq_qos_ops wbt_rqos_ops = {
 	.cleanup = wbt_cleanup,
 	.queue_depth_changed = wbt_queue_depth_changed,
 	.exit = wbt_exit,
+	.free = wbt_free,
 #ifdef CONFIG_BLK_DEBUG_FS
 	.debugfs_attrs = wbt_debugfs_attrs,
 #endif
-- 
2.31.1


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

Thread overview: 22+ 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 ` Yu Kuai
2021-09-23 13:46 ` [PATCH 1/6] rq-qos: introduce rq_qos_free() Yu Kuai
2021-09-23 13:46   ` Yu Kuai
2021-09-23 13:46 ` Yu Kuai [this message]
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
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   ` Yu Kuai
2021-09-23 13:46 ` [PATCH 5/6] blk-ioprio: introduce blkcg_ioprio_free() Yu Kuai
2021-09-23 13:46   ` Yu Kuai
2021-09-23 13:46 ` [PATCH 6/6] rq-qos: fix uaf in rq_qos_done_io() Yu Kuai
2021-09-23 13:46   ` Yu Kuai
2021-09-24  0:41   ` Ming Lei
2021-09-24  0:41     ` Ming Lei
2021-09-24  1:23     ` yukuai (C)
2021-09-24  1:23       ` yukuai (C)
2021-09-24  1:49       ` Ming Lei
2021-09-24  1:49         ` Ming Lei
2021-09-24  8:19         ` yukuai (C)
2021-09-24  8:19           ` yukuai (C)

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