From nobody Sat Feb 7 08:42:29 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 136D826C3BD; Mon, 2 Feb 2026 15:57:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770047840; cv=none; b=u6KxvpsR2K5hA+P/vTs+elakj/qjB1cRpxsE8dM7HKd9yVrINrb19rtiFVDCtNCvm36iH2sybVi8PDRdrvK5LlOahCwXQgEdEus3PMWSmlG3J0NEFzEzJQALek8kpigufsjhQ00zhqraZFL9+kkVO654dRPRfTwwtjjfKUz7Cxk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770047840; c=relaxed/simple; bh=IBF8LKGHv8lxiBFV8UfHPvSAlGIc6Qys2WBMHwwJVg4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ueI2OB0Qbw31lsuUdber/1yXC71CWt/sztp7DzmLcm7vVt/hYuLumZtjV680oGoemN8H+ZNm80L/Gx1+EYGv/qG2ulm98TUfX1Nm4o7CYmir//a6qCA/BFFWzCKONUjQSuc2Q+HHU0v6AWE7lvx5E6Eo7P2h/803s1K2o4mpqUY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YuVzolUx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YuVzolUx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 128AEC116C6; Mon, 2 Feb 2026 15:57:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770047839; bh=IBF8LKGHv8lxiBFV8UfHPvSAlGIc6Qys2WBMHwwJVg4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YuVzolUxox1f5GDWOA8CVHMmtNtR8rH56CE799gR/LBfgxNTQE4DS7AzSZ05rBRWc FnPse+uKdKjUnE+dIg2WDGrAWi/DxQyNqRQWnVunXN1EQZ0s+l+VLBWznFXBq7FRtT 2kLH+J41Lw+8XmHoO8pYl/kmQCiGHNECurCynDzjvYqd0jfAMqj0+rIDcD3/XTp9qN 47jsB7V7iAH2Z2sWcSbM12x2hkw6jF6ysOVcj7VilqhwFryfXkl/hYvYBV/pqe5XOM V6I4WeWBkYYa/9pdpYNKkE5dwOOWz7J7plXl/u0mUpblatGhNNyZ0cKj7TlsLEOboH w5M6fqyvPoheQ== Received: from phl-compute-11.internal (phl-compute-11.internal [10.202.2.51]) by mailfauth.phl.internal (Postfix) with ESMTP id 3A677F40069; Mon, 2 Feb 2026 10:57:18 -0500 (EST) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-11.internal (MEProxy); Mon, 02 Feb 2026 10:57:18 -0500 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgddujeektdehucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujf gurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepmfhirhihlhcu ufhhuhhtshgvmhgruhcuoehkrghssehkvghrnhgvlhdrohhrgheqnecuggftrfgrthhtvg hrnhephfdufeejhefhkedtuedvfeevjeffvdfhvedtudfgudffjeefieekleehvdetvdev necuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepkhhirh hilhhlodhmvghsmhhtphgruhhthhhpvghrshhonhgrlhhithihqdduieduudeivdeiheeh qddvkeeggeegjedvkedqkhgrsheppehkvghrnhgvlhdrohhrghesshhhuhhtvghmohhvrd hnrghmvgdpnhgspghrtghpthhtohepvdekpdhmohguvgepshhmthhpohhuthdprhgtphht thhopegrkhhpmheslhhinhhugidqfhhouhhnuggrthhiohhnrdhorhhgpdhrtghpthhtoh epmhhutghhuhhnrdhsohhngheslhhinhhugidruggvvhdprhgtphhtthhopegurghvihgu sehrvgguhhgrthdrtghomhdprhgtphhtthhopeifihhllhihsehinhhfrhgruggvrggurd horhhgpdhrtghpthhtohepuhhsrghmrggrrhhifheigedvsehgmhgrihhlrdgtohhmpdhr tghpthhtohepfhhvughlsehgohhoghhlvgdrtghomhdprhgtphhtthhopehoshgrlhhvrg guohhrsehsuhhsvgdruggvpdhrtghpthhtoheprhhpphhtsehkvghrnhgvlhdrohhrghdp rhgtphhtthhopehvsggrsghkrgesshhushgvrdgtii X-ME-Proxy: Feedback-ID: i10464835:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 2 Feb 2026 10:57:15 -0500 (EST) From: Kiryl Shutsemau To: Andrew Morton , Muchun Song , David Hildenbrand , Matthew Wilcox , Usama Arif , Frank van der Linden Cc: Oscar Salvador , Mike Rapoport , Vlastimil Babka , Lorenzo Stoakes , Zi Yan , Baoquan He , Michal Hocko , Johannes Weiner , Jonathan Corbet , Huacai Chen , WANG Xuerui , Palmer Dabbelt , Paul Walmsley , Albert Ou , Alexandre Ghiti , kernel-team@meta.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, Kiryl Shutsemau Subject: [PATCHv6 04/17] mm: Move set/clear_compound_head() next to compound_head() Date: Mon, 2 Feb 2026 15:56:20 +0000 Message-ID: <20260202155634.650837-5-kas@kernel.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260202155634.650837-1-kas@kernel.org> References: <20260202155634.650837-1-kas@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Move set_compound_head() and clear_compound_head() to be adjacent to the compound_head() function in page-flags.h. These functions encode and decode the same compound_info field, so keeping them together makes it easier to verify their logic is consistent, especially when the encoding changes. Signed-off-by: Kiryl Shutsemau Reviewed-by: Muchun Song Reviewed-by: Zi Yan Acked-by: David Hildenbrand (arm) --- 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 aa46d49e82f7..d14a17ffb55b 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -290,6 +290,18 @@ static __always_inline unsigned long _compound_head(co= nst struct page *page) =20 #define compound_head(page) ((typeof(page))_compound_head(page)) =20 +static __always_inline void set_compound_head(struct page *page, + const 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); } =20 -static __always_inline void set_compound_head(struct page *page, - const 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) { --=20 2.51.2