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Date:   Wed, 23 Mar 2022 09:48:41 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     David Hildenbrand <david@redhat.com>
Cc:     Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>,
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Subject: Re: [RFC 2/3] mm: export zap_page_range()
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On Tue, Mar 22, 2022 at 02:08:13PM +0100, David Hildenbrand wrote:
> Reason is that we don't want anybody to blindly zap_page_range() within
> random VMAs from a kernel module.

Not just that, but there is no business for modules doing this at all.
These kinds of VM hooks for random drivers are not a good idea.