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Mon, 20 Apr 2026 11:01:54 +0300 From: Gorbunov Ivan To: CC: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v2 0/2] mm: improve folio refcount scalability Date: Mon, 20 Apr 2026 08:01:17 +0000 Message-ID: X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.123.69.39] X-ClientProxiedBy: mscpeml500003.china.huawei.com (7.188.49.51) To mscpeml500003.china.huawei.com (7.188.49.51) X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: BB985180006 X-Stat-Signature: pgi8d85gtkd56m5uwqdqrerkqmffmemi X-Rspam-User: X-HE-Tag: 1776672120-701955 X-HE-Meta: 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 NMptfHli hylr8eNz8VZfQBHvwu/UqkxQdqqIc0PGKTsrWQRAZqxpctxxiqs+VikMaH/fEz612tGRQ4ZhJr9aD82s6A/OqbZcJm3CbeLG+ERRH4/jwyuOJivcJNkbzhJlS+gyTeIqWYGV/RFcsVna0EB8q+T5KPuQZXFmEgqgekeFI+cOqUiCJF5xDUqo6hDV/sumO0nb3Jkhzl4YKIjArrSXWx/uGJM/CoTCdOXgImw2EczY199VZT0iyDNZFvqQtjg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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