Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Subject: Re: [PATCH -next v2 2/2] md/raid5-cache: fix null-ptr-deref in
 r5l_reclaim_thread()
To:     Yu Kuai <yukuai1@huaweicloud.com>, Song Liu <song@kernel.org>
Cc:     xni@redhat.com, logang@deltatee.com, hch@lst.de, shli@fb.com,
        linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org,
        yi.zhang@huawei.com, yangerkun@huawwe.com,
        "yukuai (C)" <yukuai3@huawei.com>
References: <20230628010756.70649-1-yukuai1@huaweicloud.com>
 <20230628010756.70649-3-yukuai1@huaweicloud.com>
 <CAPhsuW500i9LEcSsAchje46b2maKdj4EVaefPtinZfdP+AqELw@mail.gmail.com>
 <e5d746d0-1d42-3d60-450b-2450f24f0915@huaweicloud.com>
 <4690dfff-ad72-bf83-7feb-75018712eb17@huaweicloud.com>
From:   Yu Kuai <yukuai1@huaweicloud.com>
Message-ID: <d6a6ec52-3c33-726f-1ce2-40168bfa7e27@huaweicloud.com>
Date:   Fri, 7 Jul 2023 17:19:10 +0800
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101
 Thunderbird/60.8.0
MIME-Version: 1.0
In-Reply-To: <4690dfff-ad72-bf83-7feb-75018712eb17@huaweicloud.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk

Hi,

在 2023/07/07 17:16, Yu Kuai 写道:
> Perhaps you means this order?
> 
> r5l_exit_log
>   flush_work(&log->disable_writeback_work)
>   conf->log = NULL
>   md_unregister_thread(&log->reclaim_thread)
> 
> I think this is better indeed.
Never mind, this is wrong, I got confused...

Please ignore this and take a look at my original fix.

Thanks,
Kuai