From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-111.freemail.mail.aliyun.com (out30-111.freemail.mail.aliyun.com [115.124.30.111]) (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 22E392C0F6D for ; Fri, 20 Mar 2026 03:31:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.111 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773977472; cv=none; b=We8YvtA8epm9fpHJlOcuvyeOeuQ5Z5ObdlJl3iHd4ODGlAFUsswWgpXMYX8voXMkSZYljnXuvSKcJ7Wt7nqXjgEMwDStu3iYrtm41psKvawp8c9nrl/dj7dHhqgyA+OqWPnuQbndEfC34+DCW9eU6ZYn9xVGzQ9UebWzWPppHfw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773977472; c=relaxed/simple; bh=uolE1ZwhW+qWSqJXE2WfMpcljmfCYV53l1AORHlBETg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=LEt/yQPXRFljXYafD9+0oS82lnmw2irNWRHf235CKXYk1q6o7rcs/xa/yRBRzmQhwuNR1ZJN5fJMqMUUrLsn2tOmCuD7x5/xf1681q42q6DAKU3onQ1x74cin6TVxpSGVK9YHzXpu3LWkzszgxWiZOgJfCZvUB1g2ZuQjDVWVBc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=QwBTmET9; arc=none smtp.client-ip=115.124.30.111 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="QwBTmET9" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1773977467; h=Message-ID:Date:MIME-Version:Subject:To:From:Content-Type; bh=e1IpKc1z71M2a6tWj6gvBg0vIBIO9A8U3Xv2HaNRDwQ=; b=QwBTmET97RHnK5DIVFuZirX1dO08MzulFANQbon966Brox+nydutlGYFAX+2/btgi8KZgfOHaAknUya8BDrSMP2WIq2KSovgZgJ4GEIr9MjhdNpfLuAv9lpWt8wJi8lm1+NayCP7iXuGyGPJnvY6TcRu03419wJmHe9F18ZDNPA= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R431e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033032089153;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=16;SR=0;TI=SMTPD_---0X.KLaDi_1773977465; Received: from 30.74.144.136(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0X.KLaDi_1773977465 cluster:ay36) by smtp.aliyun-inc.com; Fri, 20 Mar 2026 11:31:05 +0800 Message-ID: <435be208-8d04-4e9e-9b00-9d2b754aeef4@linux.alibaba.com> Date: Fri, 20 Mar 2026 11:31:04 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 6/9] mm/huge_memory: remove unnecessary VM_BUG_ON_PAGE() To: "Lorenzo Stoakes (Oracle)" , Andrew Morton Cc: David Hildenbrand , Zi Yan , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <3fcbddfbfd0408364fad4548be83455a59d17f79.1773924928.git.ljs@kernel.org> From: Baolin Wang In-Reply-To: <3fcbddfbfd0408364fad4548be83455a59d17f79.1773924928.git.ljs@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 3/19/26 9:00 PM, Lorenzo Stoakes (Oracle) wrote: > This has been around since the beginnings of the THP implementation. I > think we can safely assume that, if we have a THP folio, it will have a > head page. > > Signed-off-by: Lorenzo Stoakes (Oracle) > --- I think I reviewed this patch before[1]:) Anyway, LGTM. Reviewed-by: Baolin Wang [1] https://lore.kernel.org/all/07368afd-05c3-48f4-89a0-c1349784f62b@linux.alibaba.com/