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Message-ID: <ZBMr9YOmLtC6GNQ8@infradead.org>
Date:   Thu, 16 Mar 2023 07:47:17 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     MIngyi Cong <congmingyi@...il.com>
Cc:     linkinjeon@...nel.org, senozhatsky@...omium.org, sfrench@...ba.org,
        tom@...pey.com, linux-kernel@...r.kernel.org,
        linux-cifs@...r.kernel.org
Subject: Re: [PATCH v3] fs: add the tuncate check of exfat

On Thu, Mar 16, 2023 at 10:27:53PM +0800, MIngyi Cong wrote:
> EXFAT will fill zero data in truncated range.
> Fix this by adding EXFAT_SUPER_MAGIC check.

None of these is correct.  We need to find a way to communicate
this information without looking at magic numbers.

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