From: "David Hildenbrand (Arm)" <david@kernel.org>
To: 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>,
Andrew Morton <akpm@linux-foundation.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>
Cc: linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org,
bpf@vger.kernel.org, linux-mm@kvack.org,
"David Hildenbrand (Arm)" <david@kernel.org>
Subject: [PATCH 0/3] mm: remove page_mapped()
Date: Mon, 27 Apr 2026 13:43:13 +0200 [thread overview]
Message-ID: <20260427-page_mapped-v1-0-e89c3592c74c@kernel.org> (raw)
While preparing my slides for an LSF/MM talk, I realized that I did not
yet remove page_mapped().
So let's do that. In the BPF arena code it's unclear which memdesc we
would want to allocate in the future: certainly something with a
refcount, but likely none with a mapcount. So let's just rely on
the page refcount instead to decide whether we want to try zapping the
page from user page tables.
Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
---
David Hildenbrand (Arm) (3):
sh: use folio_mapped() instead of page_mapped() in sh4_flush_cache_page()
bpf: arena: use page_ref_count() instead of page_mapped() in arena_free_pages()
mm: remove page_mapped()
arch/sh/mm/cache-sh4.c | 2 +-
include/linux/mm.h | 10 ----------
kernel/bpf/arena.c | 2 +-
mm/memory.c | 2 +-
mm/rmap.c | 8 ++++----
5 files changed, 7 insertions(+), 17 deletions(-)
---
base-commit: a2ddbfd1af0f54ea84bf17f0400088815d012e8d
change-id: 20260422-page_mapped-a49a892fa432
--
Cheers,
David
next reply other threads:[~2026-04-27 11:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-27 11:43 David Hildenbrand (Arm) [this message]
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
2026-04-27 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
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