netdev - Re: [RFC v2 01/13] mm: export zap_page

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Message-ID: <20201222154429.GA5557@infradead.org>
Date:   Tue, 22 Dec 2020 15:44:29 +0000
From:   Christoph Hellwig <hch@...radead.org>
To:     Xie Yongji <xieyongji@...edance.com>
Cc:     mst@...hat.com, jasowang@...hat.com, stefanha@...hat.com,
        sgarzare@...hat.com, parav@...dia.com, akpm@...ux-foundation.org,
        rdunlap@...radead.org, willy@...radead.org,
        viro@...iv.linux.org.uk, axboe@...nel.dk, bcrl@...ck.org,
        corbet@....net, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, kvm@...r.kernel.org, linux-aio@...ck.org,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [RFC v2 01/13] mm: export zap_page_range() for driver use

On Tue, Dec 22, 2020 at 10:52:09PM +0800, Xie Yongji wrote:
> Export zap_page_range() for use in VDUSE.

Err, no.  This has absolutely no business being used by drivers.