linux-kernel - Re: [PATCH v17 19/35] arch/mm: Export direct {un,}map functions

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Message-ID: <Zdxwo0abvklfam-Z@infradead.org>
Date: Mon, 26 Feb 2024 03:06:11 -0800
From: Christoph Hellwig <hch@...radead.org>
To: Christoph Hellwig <hch@...radead.org>, Will Deacon <will@...nel.org>,
	Quentin Perret <qperret@...gle.com>,
	Chris Goldsworthy <quic_cgoldswo@...cinc.com>,
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	Alex Elder <elder@...aro.org>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Murali Nalajal <quic_mnalajal@...cinc.com>,
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Subject: Re: [PATCH v17 19/35] arch/mm: Export direct {un,}map functions

The point is that we can't we just allow modules to unmap data from
the kernel mapping, no matter how noble your intentions are.