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Date:   Mon, 6 Sep 2021 17:50:22 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     Yu Xu <xuyu@linux.alibaba.com>
Cc:     Hao Sun <sunhao.th@gmail.com>, akpm@linux-foundation.org,
        linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: kernel BUG in truncate_inode_page
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On Mon, Sep 06, 2021 at 08:59:17PM +0800, Yu Xu wrote:
> Hi, we also reproduce such bug recently, and have sent out our patch[1].
> 
> In addition, another issue related with xfs and file THP is also
> fixed[2].
> 
> Looking forward to reviews.
> 
> [1]https://patchwork.kernel.org/project/linux-mm/patch/20210906121200.57905-2-rongwei.wang@linux.alibaba.com/
> [2]https://patchwork.kernel.org/project/linux-mm/patch/20210906121200.57905-3-rongwei.wang@linux.alibaba.com/

I had a quick look, and there are some problems with both patches.
I don't have time to do a detailed review; as I said I'm on holiday.
I'll be back in two weeks.