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Date:   Mon, 31 Jan 2022 15:27:02 +0100
From:   David Hildenbrand <>
To:     "Matthew Wilcox (Oracle)" <>,
        Kees Cook <>
Subject: Re: [PATCH 4/4] usercopy: Remove HARDENED_USERCOPY_PAGESPAN

On 11.01.22 00:15, Matthew Wilcox (Oracle) wrote:
> There isn't enough information to make this a useful check any more;
> the useful parts of it were moved in earlier patches, so remove this
> set of checks now.
> Signed-off-by: Matthew Wilcox (Oracle) <>

Very nice cleanup IMHO

Reviewed-by: David Hildenbrand <>


David / dhildenb

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