From nobody Sun Feb 8 15:29:05 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 994AC22AE65; Sun, 11 Jan 2026 08:27:57 +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=1768120077; cv=none; b=mCeyKmO6Z9ADzK21aqowOOHAoB1WvcSJJedC9NcqRHLioKgEZPK/CzPCU76d9u4NL6UCtSjpzQXO6bmUXUldQSz9wKFPLgSOl0yRJebzsav9peYdDth6ZqtbraBDh/IkksZlzBhLxA+wYnakjleXZZh0qBXFShl16UwSiB4Jx84= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768120077; c=relaxed/simple; bh=q+M5A50bBS7JfetqFByPT+KJrphXgISZqTpM92eTenA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OxhhbxLdOt26tcMnDzNXm7REZck/KKNow3prUAX3X4YS8DjNvGQypZHNcH6HdxyAC48kL+dXx3JTyUN/cHEYC/S2sphdtB+Ufkz0S5BJoE14LW/IWnl59felZP3qchen7MpvdAjRWKsqxIwK5vU9fAZoAfpB+s/6b5muQRI++2s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IGnsApOe; 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="IGnsApOe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 93D8CC4CEF7; Sun, 11 Jan 2026 08:27:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768120077; bh=q+M5A50bBS7JfetqFByPT+KJrphXgISZqTpM92eTenA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IGnsApOe52UMwQH9rU0QdFDUAygZdjQbcEkT+VcFh+f2uIPc0Movv0hadDZtysGLu JMYTBeuroBlSJGszS2K8JW23cEU1tXtb89wIKkYD2uNZvvSMDgnuNSbEAJkkMWfugW cwtKO3+xV3d/K2hNCc4wGnvGVjpj4mSjlL71LyU4btVNuDx9MwMhZ5QsDvVpKtmQNN 2EAcaKe/SBeeqJy3AZisKps+dHlJ9rGGk1wbkEMkkumkaTeOfnRjlxc0fyDYFkNWJz /+oWBnCcEaIsUnQb4PUJdVub3TiaSeyalOMYoRZBztcTqMfYM7Z+CzPCQ4YeR/ZN6x o9YVaMIgO5ztg== From: Mike Rapoport To: Andrew Morton Cc: Alex Shi , Alexander Gordeev , Andreas Larsson , Borislav Petkov , Brian Cain , "Christophe Leroy (CS GROUP)" , Catalin Marinas , "David S. Miller" , Dave Hansen , David Hildenbrand , Dinh Nguyen , Geert Uytterhoeven , Guo Ren , Heiko Carstens , Helge Deller , Huacai Chen , Ingo Molnar , Johannes Berg , John Paul Adrian Glaubitz , Jonathan Corbet , Klara Modin , "Liam R. Howlett" , Lorenzo Stoakes , Magnus Lindholm , Matt Turner , Max Filippov , Michael Ellerman , Michal Hocko , Michal Simek , Mike Rapoport , Muchun Song , Oscar Salvador , Palmer Dabbelt , Pratyush Yadav , Richard Weinberger , Ritesh Harjani , Russell King , Stafford Horne , Suren Baghdasaryan , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Vineet Gupta , Vlastimil Babka , Will Deacon , x86@kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-um@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, sparclinux@vger.kernel.org Subject: [PATCH v3 26/29] x86: don't reserve hugetlb memory in setup_arch() Date: Sun, 11 Jan 2026 10:21:00 +0200 Message-ID: <20260111082105.290734-27-rppt@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260111082105.290734-1-rppt@kernel.org> References: <20260111082105.290734-1-rppt@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" From: "Mike Rapoport (Microsoft)" Commit 665eaf313314 ("x86/setup: call hugetlb_bootmem_alloc early") added an early call to hugetlb_bootmem_alloc() to setup_arch() to allow HVO style pre-initialization of vmemmap on x86. With the ordering of hugetlb reservation vs memory map initialization sorted out in core MM this no longer needs to be an architecture specific quirk. Drop the call to hugetlb_bootmem_alloc() from x86::setup_arch(). Signed-off-by: Mike Rapoport (Microsoft) --- arch/x86/kernel/setup.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 1b2edd07a3e1..e2318fa9b1bb 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1191,7 +1191,6 @@ void __init setup_arch(char **cmdline_p) =20 if (boot_cpu_has(X86_FEATURE_GBPAGES)) { hugetlb_cma_reserve(PUD_SHIFT - PAGE_SHIFT); - hugetlb_bootmem_alloc(); } =20 /* --=20 2.51.0