From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>, linux-mm@kvack.org
Cc: akpm@linux-foundation.org, vbabka@suse.cz, surenb@google.com,
mhocko@suse.com, jackmanb@google.com, hannes@cmpxchg.org,
ziy@nvidia.com, npiggin@gmail.com, linux-kernel@vger.kernel.org,
kasong@tencent.com, hughd@google.com, chrisl@kernel.org,
ryncsn@gmail.com, stable@vger.kernel.org, willy@infradead.org
Subject: Re: [PATCH v3] mm/page_alloc: clear page->private in free_pages_prepare()
Date: Sat, 7 Feb 2026 23:08:03 +0100 [thread overview]
Message-ID: <51f96b31-fb59-4cda-9d33-e3cebc45686b@kernel.org> (raw)
In-Reply-To: <cbc3b5b3-09b5-4e3c-99f0-a1f67582afff@kernel.org>
>
> - /*
> - * page->private should not be set in tail pages. Fix up
> and warn once
> - * if private is unexpectedly set.
> - */
> - if (unlikely(new_folio->private)) {
> - VM_WARN_ON_ONCE_PAGE(true, new_head);
> - new_folio->private = NULL;
> - }
BTW, I wonder whether we should bring that check back for non-device folios.
--
Cheers,
David
next prev parent reply other threads:[~2026-02-07 22:08 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CABXGCs03XcXt5GDae7d74ynC6P6G2gLw3ZrwAYvSQ3PwP0mGXA@mail.gmail.com>
2026-02-06 17:40 ` [PATCH] mm/page_alloc: clear page->private in split_page() for tail pages Mikhail Gavrilov
2026-02-06 18:08 ` Zi Yan
2026-02-06 18:21 ` Mikhail Gavrilov
2026-02-06 18:29 ` Zi Yan
2026-02-06 18:33 ` Zi Yan
2026-02-06 19:58 ` Zi Yan
2026-02-06 20:49 ` Zi Yan
2026-02-06 22:16 ` Mikhail Gavrilov
2026-02-06 22:37 ` Mikhail Gavrilov
2026-02-06 23:06 ` Zi Yan
2026-02-07 3:28 ` Zi Yan
2026-02-07 14:25 ` Mikhail Gavrilov
2026-02-07 14:32 ` Zi Yan
2026-02-07 15:03 ` Mikhail Gavrilov
2026-02-07 15:06 ` Zi Yan
2026-02-07 15:37 ` [PATCH v2] mm/page_alloc: clear page->private in free_pages_prepare() Mikhail Gavrilov
2026-02-07 16:12 ` Zi Yan
2026-02-07 17:36 ` [PATCH v3] " Mikhail Gavrilov
2026-02-07 22:02 ` David Hildenbrand (Arm)
2026-02-07 22:08 ` David Hildenbrand (Arm) [this message]
2026-02-09 11:17 ` Vlastimil Babka
2026-02-09 15:46 ` David Hildenbrand (Arm)
2026-02-09 16:00 ` Zi Yan
2026-02-09 16:03 ` David Hildenbrand (Arm)
2026-02-09 16:05 ` Zi Yan
2026-02-09 16:06 ` David Hildenbrand (Arm)
2026-02-09 16:08 ` Zi Yan
2026-02-07 23:00 ` Zi Yan
2026-02-09 16:16 ` David Hildenbrand (Arm)
2026-02-09 16:20 ` David Hildenbrand (Arm)
2026-02-09 16:33 ` Zi Yan
2026-02-09 17:36 ` David Hildenbrand (Arm)
2026-02-09 17:44 ` Zi Yan
2026-02-09 19:39 ` David Hildenbrand (Arm)
2026-02-09 19:42 ` Zi Yan
2026-02-10 1:20 ` Baolin Wang
2026-02-10 2:12 ` Zi Yan
2026-02-10 2:25 ` Baolin Wang
2026-02-10 2:32 ` Zi Yan
2026-02-09 19:46 ` David Hildenbrand (Arm)
2026-02-09 11:11 ` [PATCH v2] " Vlastimil Babka
2026-02-06 18:24 ` [PATCH] mm/page_alloc: clear page->private in split_page() for tail pages Kairui Song
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