From: Christoph Hellwig <hch@infradead.org>
To: Zi Yan <ziy@nvidia.com>
Cc: linux-mm@kvack.org, "David Hildenbrand" <david@kernel.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
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Subject: Re: [PATCH v1 00/11] Zero page->private when freeing pages
Date: Mon, 23 Feb 2026 05:46:08 -0800 [thread overview]
Message-ID: <aZxaIEFZr2NvO2eQ@infradead.org> (raw)
In-Reply-To: <20260223032641.1859381-1-ziy@nvidia.com>
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.
next prev parent reply other threads:[~2026-02-23 13:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-23 3:26 [PATCH v1 00/11] Zero page->private when freeing pages Zi Yan
2026-02-23 3:26 ` [PATCH v1 01/11] relay: zero " Zi Yan
2026-02-23 14:45 ` Usama Arif
2026-02-23 3:26 ` [PATCH v1 02/11] mm/slub: " Zi Yan
2026-02-23 3:26 ` [PATCH v1 03/11] drm/ttm: " Zi Yan
2026-02-23 10:43 ` Christian König
2026-02-23 3:26 ` [PATCH v1 04/11] blk-mq: " Zi Yan
2026-02-23 3:26 ` [PATCH v1 05/11] watch_queue: " Zi Yan
2026-02-23 3:26 ` [PATCH v1 06/11] binder: " Zi Yan
2026-02-23 3:26 ` [PATCH v1 07/11] null_blk: " Zi Yan
2026-02-23 3:26 ` [PATCH v1 08/11] percpu: " Zi Yan
2026-02-23 3:26 ` [PATCH v1 09/11] erofs: " Zi Yan
2026-02-23 3:26 ` [PATCH v1 10/11] mm/huge_memory: add page->private check back in __split_folio_to_order() Zi Yan
2026-02-23 3:26 ` [PATCH v1 11/11] mm/page_alloc: check page->private upon page free Zi Yan
2026-02-23 4:28 ` [PATCH v1 00/11] Zero page->private when freeing pages Matthew Wilcox
2026-02-23 9:36 ` David Hildenbrand (Arm)
2026-02-23 8:40 ` [syzbot ci] " syzbot ci
2026-02-23 13:46 ` Christoph Hellwig [this message]
2026-02-23 14:00 ` [PATCH v1 00/11] " Zi Yan
2026-02-23 14:03 ` Christoph Hellwig
2026-02-23 14:11 ` Zi Yan
2026-02-23 14:06 ` Christian König
2026-02-23 14:14 ` David Hildenbrand (Arm)
2026-02-23 15:22 ` Christian König
2026-02-23 15:27 ` David Hildenbrand (Arm)
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