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Mon, 08 Dec 2025 06:36:34 -0800 (PST) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-647b413b590sm11054218a12.35.2025.12.08.06.36.34 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 08 Dec 2025 06:36:34 -0800 (PST) From: Wei Yang To: akpm@linux-foundation.org, david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, Liam.Howlett@oracle.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev, linmiaohe@huawei.com, nao.horiguchi@gmail.com Cc: linux-mm@kvack.org, Wei Yang Subject: [RFC Patch 03/11] mm/huge_memory: convert try_folio_split_to_order() to use split_folio_to_order() Date: Mon, 8 Dec 2025 14:36:08 +0000 Message-Id: <20251208143616.20797-4-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20251208143616.20797-1-richard.weiyang@gmail.com> References: <20251208143616.20797-1-richard.weiyang@gmail.com> X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 77301C0002 X-Stat-Signature: 19ggymjshncyotn95wgjohjp69jayhxd X-Rspam-User: X-HE-Tag: 1765204596-973054 X-HE-Meta: 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 3K1N8LwT c6+Aa+cN3XfYyAOQDDzuI6eho/cM9IH9q/oRIfsuMUqndScYa/wdHXXSAgKUEOVWD5oh662ZyDOZ8bCC5dmAc5YbTxqYH5oa4FD3CqDxHXezgmLw21stydoDC4MZYbZc87fu932mVCnsrraFU78ZX9g1ZHa1XlEwpxs9cWky9AE0tH50VQawRoYQuTXlFPwYTWmTznMrBxNpKKzvu1bF/27UyDe3Jw1J2ai+Bhb6/5GRX7OndU4nNQxgIuQoTkxQsB4+n X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The function try_folio_split_to_order() currently calls split_huge_page_to_order() to split a large folio. The behavior of split_huge_page_to_order() in this context -- splitting a large folio and returning the first resulting page locked -- is functionally identical to the folio-style helper split_folio_to_order(). This commit converts the call to use the split_folio_to_order() helper instead. This adopts the modern folio-style API, improving consistency and reducing reliance on the older page-centric interface. Signed-off-by: Wei Yang Cc: Zi Yan --- include/linux/huge_mm.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h index 977e513feed7..3e01184cf274 100644 --- a/include/linux/huge_mm.h +++ b/include/linux/huge_mm.h @@ -389,6 +389,11 @@ static inline int split_huge_page_to_order(struct page *page, unsigned int new_o return split_huge_page_to_list_to_order(page, NULL, new_order); } +static inline int split_folio_to_order(struct folio *folio, int new_order) +{ + return split_huge_page_to_list_to_order(&folio->page, NULL, new_order); +} + /** * try_folio_split_to_order() - try to split a @folio at @page to @new_order * using non uniform split. @@ -407,7 +412,7 @@ static inline int try_folio_split_to_order(struct folio *folio, struct page *page, unsigned int new_order) { if (folio_check_splittable(folio, new_order, SPLIT_TYPE_NON_UNIFORM)) - return split_huge_page_to_order(&folio->page, new_order); + return split_folio_to_order(folio, new_order); return folio_split(folio, new_order, page, NULL); } static inline int split_huge_page(struct page *page) @@ -771,11 +776,6 @@ static inline bool pmd_is_huge(pmd_t pmd) } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ -static inline int split_folio_to_order(struct folio *folio, int new_order) -{ - return split_huge_page_to_list_to_order(&folio->page, NULL, new_order); -} - /** * largest_zero_folio - Get the largest zero size folio available * -- 2.34.1