From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Eduard Zingerman <eddyz87@gmail.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
Jiri Olsa <jolsa@kernel.org>, Lorenzo Stoakes <ljs@kernel.org>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>, Rik van Riel <riel@surriel.com>,
Harry Yoo <harry@kernel.org>, Jann Horn <jannh@google.com>,
Matthew Wilcox <willy@infradead.org>,
"Liam R. Howlett" <liam@infradead.org>,
linux-sh@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
bpf <bpf@vger.kernel.org>, linux-mm <linux-mm@kvack.org>
Subject: Re: [PATCH 2/3] bpf: arena: use page_ref_count() instead of page_mapped() in arena_free_pages()
Date: Tue, 28 Apr 2026 10:16:29 +0200 [thread overview]
Message-ID: <2b2eecf0-72f9-4959-9663-c80e3cd0c517@kernel.org> (raw)
In-Reply-To: <CAADnVQJ9JXrtAnFgE8UFK=W1GDeT6T6Wi5zB7g0AfRjU8M4=bQ@mail.gmail.com>
>>>
>>> Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
>>> ---
>>> kernel/bpf/arena.c | 2 +-
>>
>> BPF maintainers will probably want to carry this in the BPF tree.
>> That's fine - please go ahead and add it. I'll carry a duplicate in
>> mm.git so it compiles.
>
> We cannot carry the same patch in 2 trees.
> Sooner or later it will create problems for linux-next
> and issues during merge window if more changes
> are done in the same area.
> The only way to share a patch between trees is to
> create a stable branch and pull it into 2 trees
> then sha will be the same,
As lack of stable trees was raised a couple of times in the past, once we're
done with a transition to a fully git-based mm-next workflow [1], we should be
able to provide stable trees.
[1]
https://lore.kernel.org/r/20260421094216.8dfe14a8c62f2420fa5aace1@linux-foundation.org
--
Cheers,
David
next prev parent reply other threads:[~2026-04-28 8:16 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-27 11:43 [PATCH 0/3] mm: remove page_mapped() David Hildenbrand (Arm)
2026-04-27 11:43 ` [PATCH 1/3] sh: use folio_mapped() instead of page_mapped() in sh4_flush_cache_page() David Hildenbrand (Arm)
2026-04-27 12:43 ` Matthew Wilcox
2026-04-27 11:43 ` [PATCH 2/3] bpf: arena: use page_ref_count() instead of page_mapped() in arena_free_pages() David Hildenbrand (Arm)
2026-04-27 12:17 ` Andrew Morton
2026-04-27 15:00 ` Alexei Starovoitov
2026-04-27 15:15 ` Andrew Morton
2026-04-27 15:27 ` Alexei Starovoitov
2026-04-28 8:16 ` David Hildenbrand (Arm) [this message]
2026-04-28 16:58 ` Alexei Starovoitov
2026-04-28 19:38 ` David Hildenbrand (Arm)
2026-04-28 8:44 ` Vlastimil Babka (SUSE)
2026-04-27 13:00 ` Matthew Wilcox
2026-04-27 20:14 ` sashiko-bot
2026-04-27 11:43 ` [PATCH 3/3] mm: remove page_mapped() David Hildenbrand (Arm)
2026-04-27 13:12 ` Matthew Wilcox
2026-04-27 13:21 ` Andrew Morton
2026-04-27 13:23 ` David Hildenbrand (Arm)
2026-04-27 14:42 ` Breno Leitao
2026-04-27 14:59 ` Matthew Wilcox
2026-04-27 20:59 ` [PATCH 0/3] " David Hildenbrand (Arm)
2026-04-27 21:38 ` Alexei Starovoitov
2026-04-28 5:37 ` David Hildenbrand (Arm)
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