From: Johannes Weiner <hannes@cmpxchg.org>
To: Byungchul Park <byungchul@sk.com>
Cc: linux-mm@kvack.org, akpm@linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel_team@skhynix.com, harry.yoo@oracle.com, ast@kernel.org,
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linux-rdma@vger.kernel.org, sfr@canb.auug.org.au, dw@davidwei.uk,
ap420073@gmail.com, dtatulea@nvidia.com
Subject: Re: [PATCH v4] mm: introduce a new page type for page pool in page type
Date: Thu, 26 Feb 2026 13:49:49 -0500 [thread overview]
Message-ID: <aaCVzc2lexW0TiPf@cmpxchg.org> (raw)
In-Reply-To: <20260224051347.19621-1-byungchul@sk.com>
On Tue, Feb 24, 2026 at 02:13:47PM +0900, Byungchul Park wrote:
> @@ -1416,9 +1413,15 @@ __always_inline bool __free_pages_prepare(struct page *page,
> mod_mthp_stat(order, MTHP_STAT_NR_ANON, -1);
> folio->mapping = NULL;
> }
> - if (unlikely(page_has_type(page)))
> + if (unlikely(page_has_type(page))) {
> + /* networking expects to clear its page type before releasing */
> + if (unlikely(PageNetpp(page))) {
You can gate that on is_check_pages_enabled(), to avoid a new branch
in the !debug case.
Otherwise, the MM bits look good to me!
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
next prev parent reply other threads:[~2026-02-26 18:49 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-24 5:13 [PATCH v4] mm: introduce a new page type for page pool in page type Byungchul Park
2026-02-25 7:19 ` Mike Rapoport
2026-02-26 18:49 ` Johannes Weiner [this message]
2026-03-16 22:29 ` Byungchul Park
2026-03-16 22:31 ` [PATCH v5] " Byungchul Park
2026-03-17 9:20 ` Jesper Dangaard Brouer
2026-03-17 10:03 ` Ilias Apalodimas
2026-03-17 11:06 ` Dragos Tatulea
2026-03-19 23:31 ` Jakub Kicinski
2026-03-18 2:02 ` Byungchul Park
2026-03-20 11:44 ` Jesper Dangaard Brouer
2026-03-23 12:16 ` Ilias Apalodimas
2026-03-19 23:31 ` Jakub Kicinski
2026-05-13 9:00 ` [PATCH v4] " Dragos Tatulea
2026-05-13 9:12 ` Vlastimil Babka (SUSE)
2026-05-13 9:26 ` Pedro Falcato
2026-05-13 9:36 ` David Hildenbrand (Arm)
2026-05-13 12:06 ` Dragos Tatulea
2026-05-13 12:11 ` David Hildenbrand (Arm)
2026-05-14 8:54 ` Byungchul Park
2026-05-14 9:24 ` Dragos Tatulea
2026-05-15 0:01 ` Byungchul Park
2026-05-13 9:34 ` David Hildenbrand (Arm)
2026-05-13 12:18 ` Byungchul Park
2026-05-13 12:29 ` David Hildenbrand (Arm)
2026-05-13 12:39 ` Byungchul Park
2026-05-13 13:02 ` David Hildenbrand (Arm)
2026-05-13 13:26 ` Byungchul Park
2026-05-13 9:42 ` Lorenzo Stoakes
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