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Date: Mon, 23 Feb 2026 05:46:08 -0800
From: Christoph Hellwig <hch@infradead.org>
To: Zi Yan <ziy@nvidia.com>
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Subject: Re: [PATCH v1 00/11] Zero page->private when freeing pages
Message-ID: <aZxaIEFZr2NvO2eQ@infradead.org>
References: <20260223032641.1859381-1-ziy@nvidia.com>
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On Sun, Feb 22, 2026 at 10:26:30PM -0500, Zi Yan wrote:
> Hi all,
> 
> Based on a recent discussion with David Hildenbrand on page->private
> is not zero when a page is freed[1], this patchset is trying to fix all
> users do not zero ->private when freeing a page and add checks to make
> sure all freed pages have ->private set to zero. For compound pages,
> both head page and tail pages need to have ->private set to zero.

Requiring the user to clear a field before freeing is just a way to
awkward interface.  Don't do that.