From: Gorbunov Ivan <gorbunov.ivan@h-partners.com>
To: <gorbunov.ivan@h-partners.com>
Cc: <david@kernel.org>, <Liam.Howlett@oracle.com>,
<akpm@linux-foundation.org>, <apopple@nvidia.com>,
<baolin.wang@linux.alibaba.com>, <gladyshev.ilya1@h-partners.com>,
<harry.yoo@oracle.com>, <kirill@shutemov.name>,
<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>,
<lorenzo.stoakes@oracle.com>, <mhocko@suse.com>,
<muchun.song@linux.dev>, <rppt@kernel.org>, <surenb@google.com>,
<torvalds@linuxfoundation.org>, <vbabka@suse.cz>,
<willy@infradead.org>, <yuzhao@google.com>, <ziy@nvidia.com>,
<artem.kuzin@huawei.com>
Subject: [PATCH v2 0/2] mm: improve folio refcount scalability
Date: Mon, 20 Apr 2026 08:01:17 +0000 [thread overview]
Message-ID: <cover.1776350895.git.gorbunov.ivan@h-partners.com> (raw)
This is a v2 of the series that aims to improve refcount scalability via
dedicated bit. [1]
Changes since v1:
- Fixed frozen pages initialization
- Fixed page_ref_count behavior on frozen pages
- Added debug checks to ensure that some modification methods are
not called on frozen pages
[1] https://lore.kernel.org/all/20260228141941.f6fec687aae9d80a161387f4@linux-foundation.org/
Gladyshev Ilya (1):
mm: implement page refcount locking via dedicated bit
Gorbunov Ivan (1):
mm: drop page refcount zero state semantics
drivers/pci/p2pdma.c | 2 +-
include/linux/page-flags.h | 13 +++++++++
include/linux/page_ref.h | 43 +++++++++++++++++++++++++++---
kernel/liveupdate/kexec_handover.c | 2 +-
mm/hugetlb.c | 2 +-
mm/mm_init.c | 6 ++---
mm/page_alloc.c | 4 +--
7 files changed, 61 insertions(+), 11 deletions(-)
--
2.43.0
next reply other threads:[~2026-04-20 8:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-20 8:01 Gorbunov Ivan [this message]
2026-04-20 8:01 ` [PATCH v2 1/2] mm: drop page refcount zero state semantics Gorbunov Ivan
2026-04-20 8:01 ` [PATCH v2 2/2] mm: implement page refcount locking via dedicated bit Gorbunov Ivan
2026-04-20 10:07 ` [syzbot ci] Re: mm: improve folio refcount scalability syzbot ci
2026-04-20 12:29 ` Gorbunov Ivan
2026-04-20 13:21 ` syzbot ci
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