From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C77C3345CB2 for ; Mon, 25 May 2026 17:08:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779728940; cv=none; b=Q3tdry/ULP+VbkdaRL+ltzJ9a8Zp/INKR3TsmFckfwfvFZ+q3/CjlZNutuk5Pe6t9zx3pPCCOmXUL7khEu+YgID6ZDluwPUOCpIPnKUzDwS1UTPiYMAj274gtkav6CSzbDCZhrlUjDFVj4AYb+w6IMAeg9WJ91Ar8qBgklEpnRw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779728940; c=relaxed/simple; bh=VG+iBfZkPjR1LMOw23Zb2tZ0/DXNKITTCun/8DFhov8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ScG0o4Kvo6G7DZ6WSJVcnPXFIwcVz/PgK+c+STaR16pT2TCQstxBVxEaN6YWW7SFuEdWNW2AVQ6P04MSBAnFN8RPMvTgeB2AnaAW6Fj1EQ6c2IlbVkdnZhFNpv8XhUT0D2DgDGayRf/2xAk17Fhic1XpoSJVzLZ1faS7piIh9yE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jRjDshvC; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jRjDshvC" 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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