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Fri, 5 Dec 2025 14:43:58 -0500 (EST) From: Kiryl Shutsemau To: Andrew Morton , Muchun Song Cc: David Hildenbrand , Oscar Salvador , Mike Rapoport , Vlastimil Babka , Lorenzo Stoakes , Matthew Wilcox , Zi Yan , Baoquan He , Michal Hocko , Johannes Weiner , Jonathan Corbet , Usama Arif , kernel-team@meta.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Kiryl Shutsemau Subject: [PATCH 03/11] mm: Move set/clear_compound_head() to compound_head() Date: Fri, 5 Dec 2025 19:43:39 +0000 Message-ID: <20251205194351.1646318-4-kas@kernel.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251205194351.1646318-1-kas@kernel.org> References: <20251205194351.1646318-1-kas@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: 4cwxzezpds4ns6o1m7dd4fd476euuprq X-Rspam-User: X-Rspamd-Queue-Id: 9882F20004 X-Rspamd-Server: rspam01 X-HE-Tag: 1764963841-500446 X-HE-Meta: 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 ZLexxV5K 0DFBr4Zy1eWQmW2Y= 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: Move set_compound_head() and clear_compound_head() next to compound_head(). Their logic should match, and keeping them together makes it easier. Signed-off-by: Kiryl Shutsemau --- include/linux/page-flags.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 446f89c01a4c..11d9499e5ced 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -290,6 +290,18 @@ static __always_inline unsigned long _compound_head(const struct page *page) #define compound_head(page) ((typeof(page))_compound_head(page)) +static __always_inline void set_compound_head(struct page *page, + struct page *head, + unsigned int order) +{ + WRITE_ONCE(page->compound_info, (unsigned long)head + 1); +} + +static __always_inline void clear_compound_head(struct page *page) +{ + WRITE_ONCE(page->compound_info, 0); +} + /** * page_folio - Converts from page to folio. * @p: The page. @@ -865,18 +877,6 @@ static inline bool folio_test_large(const struct folio *folio) return folio_test_head(folio); } -static __always_inline void set_compound_head(struct page *page, - struct page *head, - unsigned int order) -{ - WRITE_ONCE(page->compound_info, (unsigned long)head + 1); -} - -static __always_inline void clear_compound_head(struct page *page) -{ - WRITE_ONCE(page->compound_info, 0); -} - #ifdef CONFIG_TRANSPARENT_HUGEPAGE static inline void ClearPageCompound(struct page *page) { -- 2.51.2