From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 28DEACD5BB1 for ; Mon, 25 May 2026 17:09:05 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4gPMmb3n4fz2xfB; Tue, 26 May 2026 03:09:03 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.105.4.254 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1779728943; cv=none; b=Ve6OKWvp8i5sdtS06izt8BeiDONfpxw+rFgjoRZmE42Hyh4WxGdoVa1o6gIakICSOk7Wl+6FrN9xN5Om2V2/trJkz7IAcT8HQy2fVB38Xtq4T3WJtYP7RwmDzTHc1xEJX+3KqA/D/fj08lK6y+nMChbfWJX/V8ZwBK9AYkrgRbnkJY+gQk8wFfLHRk6QuJwgqdNHy0SZtbQtMoSj0/ePfr8hEB2EoOa/wQalDGINcLWfkM+8NTclz43ThYLRrzDPFw1K22VSu5ymUApKjYGTQlOLlNBipiSZknHs9eK/4EwMe/jyGwQYobVmK6DcHJaKtxaEQm42yf/KTOlLkyg/wQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1779728943; c=relaxed/relaxed; bh=U1fgZMD3fJTNAghOf0xJr1uHYb54/6TV0xW4BVaYFe0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=o3qRuMYcAIxH0FPt3e72QIANiomTUgCHDhMonSRNA66qia6vBJxHitnbBCh5f+0FF9wgc3DHZHXGOXm32AHOntDkqnFom3jpyFNJ9vnOLmhMFaWsqqonsyaYhwXsPgZOF+qCZSqfmfrCip/0kfCPJKeU1qXUts1O1TGGRZvKzgvJTWwxIWUT9MdIdtaY6jdMzjskRBmaJAFrYjQfgMlPxTJfLZoJzqKbl6FTV4z5PT4OpAl/1SRJBtnVi5LiSJ7hzMKQq0RuQ9Z6gWstNTrToMQo1u2j+QBNLtjN82k9J9nG6cX7vBekz8lLtzkH6c3OPZRKo8iI8GHKzV9embAhyQ== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=jRjDshvC; dkim-atps=neutral; spf=pass (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=osalvador@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=jRjDshvC; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=osalvador@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4gPMmZ2mMtz2xYg for ; Tue, 26 May 2026 03:09:02 +1000 (AEST) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id B378E6008A; Mon, 25 May 2026 17:08:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7EA601F000E9; Mon, 25 May 2026 17:08:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779728939; bh=U1fgZMD3fJTNAghOf0xJr1uHYb54/6TV0xW4BVaYFe0=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=jRjDshvCJuJBUTSjrWSgZwa3oyAjxYMnp9jMj7Zk1PtO7XWQSD943spa1Ydul96c5 hRjV98B+z6Q6Bj4K2qggydXo6oBllxOj7Vin6BTULdDHy0vhrmJ+QM8MYOiV3FAwkP 2Kq9vVZettTcSTHxbEUFdqVWNZlr26oqdazIb4Lb+5hKCVARpb7Az7cs7QS0CB9Wh4 ZzwmR6Sf4hJbhZG8cHQ4gIwn7G9sFZq7ls97UbuQaYTdVz0AwA0SKNShBkU4M9YWrf F6mlXaWr94EO3oiyW6NRJuuJCHqo6Ux3DmOO/qGTtewIAiX/UHy5xNULWMuOvkkAwa k7i0K3OtcgvrQ== Date: Mon, 25 May 2026 19:08:49 +0200 From: "Oscar Salvador (SUSE)" To: Muchun Song Cc: Andrew Morton , David Hildenbrand , Muchun Song , Oscar Salvador , Michael Ellerman , Madhavan Srinivasan , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Nicholas Piggin , Christophe Leroy , Ackerley Tng , Frank van der Linden , aneesh.kumar@linux.ibm.com, joao.m.martins@oracle.com, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 09/69] mm/mm_init: Defer hugetlb reservation until after zone initialization Message-ID: References: <20260513130542.35604-1-songmuchun@bytedance.com> <20260513130542.35604-10-songmuchun@bytedance.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260513130542.35604-10-songmuchun@bytedance.com> On Wed, May 13, 2026 at 09:04:37PM +0800, Muchun Song wrote: > hugetlb_cma_reserve() and hugetlb_bootmem_alloc() currently run before > free_area_init(), so HugeTLB reservation happens before zone state is > initialized. > > Move the reservation step after free_area_init() so the relevant zone > information is available before HugeTLB reserves memory. This is needed > for later hugetlb changes that validate boot-time HugeTLB reservations > against zone boundaries. > > Signed-off-by: Muchun Song Reviewed-by: Oscar Salvador (SUSE) -- Oscar Salvador SUSE Labs