All of lore.kernel.org
 help / color / mirror / Atom feed
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


             reply	other threads:[~2026-04-27 11:43 UTC|newest]

Thread overview: 23+ 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
2026-04-28  8:16       ` David Hildenbrand (Arm)
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)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260427-page_mapped-v1-0-e89c3592c74c@kernel.org \
    --to=david@kernel.org \
    --cc=akpm@linux-foundation.org \
    --cc=andrii@kernel.org \
    --cc=ast@kernel.org \
    --cc=bpf@vger.kernel.org \
    --cc=dalias@libc.org \
    --cc=daniel@iogearbox.net \
    --cc=eddyz87@gmail.com \
    --cc=glaubitz@physik.fu-berlin.de \
    --cc=harry@kernel.org \
    --cc=jannh@google.com \
    --cc=jolsa@kernel.org \
    --cc=liam@infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linux-sh@vger.kernel.org \
    --cc=ljs@kernel.org \
    --cc=martin.lau@linux.dev \
    --cc=memxor@gmail.com \
    --cc=mhocko@suse.com \
    --cc=riel@surriel.com \
    --cc=rppt@kernel.org \
    --cc=song@kernel.org \
    --cc=surenb@google.com \
    --cc=vbabka@kernel.org \
    --cc=willy@infradead.org \
    --cc=yonghong.song@linux.dev \
    --cc=ysato@users.sourceforge.jp \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.