From nobody Sat Feb 7 15:06:05 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 59F3D239086 for ; Mon, 2 Feb 2026 15:57:26 +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=1770047846; cv=none; b=U9uPDXJ7dI89uN3EJqQtWRJ8VyLgBBwxMzlbo22OozPuMZAv0FTSLdTjs0dcbTtVSUPN13ttWSZTZ6IZ0m1WjUszs89X4KQhzJJ9NyJARv3+E86gF06oo9FXQ2VlmKRglMiELnEmMKggzYLsr2itgjxqhDtt3zX6c3x22Vlhxbw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770047846; c=relaxed/simple; bh=4F/Szy/Cik4u0re8XChd+PvOlhHKvV3FFCqDor4py4I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XrQCnHDIhF+nD3HrDnSW9ovRujGOsVxhLhvNMz/UbXstjGjj28MZv6Kr0M4aj9r2Jn3pcvvkj4gRNNnzQGlUtXa+giLwrgNBSojI3I2sdl/UTH7MZpj0wSQ4GMY3pr62oA+aqdnt25go/OO96zMeoUBakAG9++Dy2r408RbL+00= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QZGjfjok; 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="QZGjfjok" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 699A7C19425; Mon, 2 Feb 2026 15:57:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770047846; bh=4F/Szy/Cik4u0re8XChd+PvOlhHKvV3FFCqDor4py4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QZGjfjokPDSHnlpjqwSQdtVHGGa61a3RZjUGN2GocdWA+Oe8hFb9IlHe13igYNXt5 as45sEuzodDB8j3uv727voExdfh1yDdL4EH8gJtlMNf+LzDtkCnAcXtxVKa2ADbl8d xCgwh4GKiy6d9dpeuqSQ0Nm2AgFje01Aqxd/QcOmsVC52Anb93ChtzexC90UG9xTiV CpFCGVELbyNKnrJHWkkPMvMR2Brow6+oLXAdPJpYG6BaqtlfQn4wc3BzlvjjIpC3wj wC6qaUiJbMT+y7017wa/GjCQ5Fh3XL2fNpJhqA0WLzKJ+N1g4OCXcn3avVi53pUwIT mrBnx1DMgdr5w== Received: from phl-compute-06.internal (phl-compute-06.internal [10.202.2.46]) by mailfauth.phl.internal (Postfix) with ESMTP id 87AD9F40069; Mon, 2 Feb 2026 10:57:24 -0500 (EST) Received: from phl-frontend-03 ([10.202.2.162]) by phl-compute-06.internal (MEProxy); Mon, 02 Feb 2026 10:57:24 -0500 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgddujeektdeiucetufdoteggodetrf 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 10:57:22 -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 05/17] riscv/mm: Align vmemmap to maximal folio size Date: Mon, 2 Feb 2026 15:56:21 +0000 Message-ID: <20260202155634.650837-6-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" The upcoming change to the HugeTLB vmemmap optimization (HVO) requires struct pages of the head page to be naturally aligned with regard to the folio size. Align vmemmap to MAX_FOLIO_NR_PAGES. Signed-off-by: Kiryl Shutsemau --- arch/riscv/mm/init.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 21d534824624..c555b9a4fdce 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -63,7 +63,8 @@ phys_addr_t phys_ram_base __ro_after_init; EXPORT_SYMBOL(phys_ram_base); =20 #ifdef CONFIG_SPARSEMEM_VMEMMAP -#define VMEMMAP_ADDR_ALIGN (1ULL << SECTION_SIZE_BITS) +#define VMEMMAP_ADDR_ALIGN max(1ULL << SECTION_SIZE_BITS, \ + MAX_FOLIO_NR_PAGES * sizeof(struct page)) =20 unsigned long vmemmap_start_pfn __ro_after_init; EXPORT_SYMBOL(vmemmap_start_pfn); --=20 2.51.2