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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1779021289; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=STBdzgKjvPOvwUZo4dBwGw6O4WoEeCxQfi7KFeellUE=; b=T0u79BM5I9Gt9t7TqvxKLffnWzUEMms/F/PWT1x7sbrwkhHY+qo4LUD65kjSwhOxB0o4NT riHelewZfb4UdSKs72CHbsCj8IxZA//KgKKj4PgIGIBU4CuTZu3II9Otv0vMdKReM35pYg mCg25CEgPq3dkR1sKgqaxRIuPKLxJzU= From: Thorsten Blum To: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Yury Norov , Rasmus Villemoes , Andy Shevchenko Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Thorsten Blum Subject: [PATCH 1/3] mm: move offset_in_page() to page_helpers.h Date: Sun, 17 May 2026 14:34:29 +0200 Message-ID: <20260517123428.1181981-4-thorsten.blum@linux.dev> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1534; i=thorsten.blum@linux.dev; h=from:subject; bh=MrC+0YWETyNYg6CxOeGPNoPuLtOeYreu8yN0bDb2ezY=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDFmcW6849C6U8ub++mfV7aOFvzdIRv0OzGtxXzJT9Yg15 /kZf25f7ChlYRDjYpAVU2R5MOvHDN/SmspNJhE7YeawMoEMYeDiFICJTNzL8N8h6E5glljGhMjS T2IXV+rua7atXW+4TetxydtlXMEL/5gx/C9k8+I/OXPjQ93SHr/fjZxSF3iZbm4JUuapeOenJLy 5kRUA X-Developer-Key: i=thorsten.blum@linux.dev; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: C888040003 X-Stat-Signature: diepazo6c7ypnqza99jc4jartsno6m1f X-Rspam-User: X-HE-Tag: 1779021291-249996 X-HE-Meta: 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 CsLk3a0y FqyNY57GH2QSqETzxXAKcje87oSo2L0Bgz2Za+1MPC6hkmUbtHf3GgSVKDxOX8XJZw2lGjynpFdfftFnLrMyCUmAslIfbq03ivVNYJnQc0uvRBj9dvv4gTNuyj8GWGQKALlb+f2vWCCH5uf2TjesbIbV70KatrWrHiJuXjbAxEEq9E/CGCg17Eu16cdWorxoaM+XT0mNt0wYI4+tG+Cr/ZjFWwXLZqn9exHbJ4n4MjXS52wk2nKlAHc7EXG3mIAMhS+nmnhDEvY6E96kZ3SLlRcX0Zb5ytuHz4CUODWLbyiihCOWO0XGXus3GqjG+FuCfd8PUWo04qHif7G9Wxn2Nv105oYZjJZnl7WC2 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Move offset_in_page() out of linux/mm.h so users that only need page offset calculations can include this lightweight header instead of pulling in all of linux/mm.h. Signed-off-by: Thorsten Blum --- include/linux/mm.h | 2 +- include/linux/page_helpers.h | 10 ++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-) create mode 100644 include/linux/page_helpers.h diff --git a/include/linux/mm.h b/include/linux/mm.h index af23453e9dbd..bf49e52f749a 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -3033,7 +3034,6 @@ static inline void clear_page_pfmemalloc(struct page *page) */ extern void pagefault_out_of_memory(void); -#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) #define offset_in_folio(folio, p) ((unsigned long)(p) & (folio_size(folio) - 1)) /* diff --git a/include/linux/page_helpers.h b/include/linux/page_helpers.h new file mode 100644 index 000000000000..102a4f3c3868 --- /dev/null +++ b/include/linux/page_helpers.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_PAGE_HELPERS_H +#define _LINUX_PAGE_HELPERS_H + +#include + +#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK) + +#endif /* _LINUX_PAGE_HELPERS_H */