Received: by 2002:a05:6a10:6744:0:0:0:0 with SMTP id w4csp572414pxu; Thu, 15 Oct 2020 10:50:38 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyFsz9WqUHErf/R77mfjKA4AbW7K2WcnT1AkXGl288E0+jjE88x3nCiexkmR5LY3Cj7Rg/q X-Received: by 2002:a17:906:f2d5:: with SMTP id gz21mr5938655ejb.467.1602784238190; Thu, 15 Oct 2020 10:50:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1602784238; cv=none; d=google.com; s=arc-20160816; b=s0mRTR4EbB24gzUTphpyQZq00u3Rw+4kih2po7Gke3csURIy3y2DjhBQtmNShQ53pC Z/FZ7aA12Bx0f9lDAfsAFg2m8JCQav1lp3XiMlOD3/1DHSVMFM1TO4Ke7wDvE/wY0BNw tvx2wm6pepktFBl5+9MW7btWEDKdCzA2vrdB4cNO7l4FaBE50k6/vUP+gkD1J+el8TV4 ZaHAvGGpmpXB/1J6CURmJH9RvZCsq5v1LD/ilN7iGUtx6DhUyBtuTHO94uQ+pCfP/lIb EjBljnVLixfKtXgh7+XqSc+Et/qegne+gEM+SuELakv36F7n447zmKDtWlkn53S323aV d/zw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:reply-to:message-id:subject:cc:to:from:date; bh=qvP87z6bNn+cn4Ed9CepzoSaJu02cbBzSWqpP9qTmYA=; b=Aiq8qvIaMwUhj1X8s+xdlc5IVQIN/37gBnqPsOHZyo5ecgSOQJPCYrJn/0J0jBKY/G Ts79gG/kdES624/wLNw9Go9gnV/gbjLmx41rWreOML41yHxI4dr8/5YG2ZKRPN821Apz DVJEMe5VEcMlOdNZHba2vfFKu34NMBTuMNn5HdpKjEjcuiB4jcxXtyPK07T+uBRS8zEt lbKexOgq0ANEaJsuPKu0wMToJrQ0Ga3LAa2umHvFcghHdsJu0BqxAXR7if/0MQvTJeQC Mn5mgS1+pK5uoc8MAkyw1j0ZOa1rOEgoCKZWcKXFJciMg+uv79ooi23HDhJnc13gc0cB QC8g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id e13si2688496ejr.211.2020.10.15.10.50.10; Thu, 15 Oct 2020 10:50:38 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727664AbgJOHGY (ORCPT + 99 others); Thu, 15 Oct 2020 03:06:24 -0400 Received: from out30-133.freemail.mail.aliyun.com ([115.124.30.133]:45879 "EHLO out30-133.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726112AbgJOHGX (ORCPT ); Thu, 15 Oct 2020 03:06:23 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R321e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=richard.weiyang@linux.alibaba.com;NM=1;PH=DS;RN=8;SR=0;TI=SMTPD_---0UC4r3HZ_1602745579; Received: from localhost(mailfrom:richard.weiyang@linux.alibaba.com fp:SMTPD_---0UC4r3HZ_1602745579) by smtp.aliyun-inc.com(127.0.0.1); Thu, 15 Oct 2020 15:06:20 +0800 Date: Thu, 15 Oct 2020 15:06:19 +0800 From: Wei Yang To: David Hildenbrand Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, virtualization@lists.linux-foundation.org, Andrew Morton , "Michael S . Tsirkin" , Jason Wang , Pankaj Gupta Subject: Re: [PATCH v1 03/29] virtio-mem: simplify MAX_ORDER - 1 / pageblock_order handling Message-ID: <20201015070619.GC86495@L-31X9LVDL-1304.local> Reply-To: Wei Yang References: <20201012125323.17509-1-david@redhat.com> <20201012125323.17509-4-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201012125323.17509-4-david@redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 12, 2020 at 02:52:57PM +0200, David Hildenbrand wrote: >Let's use pageblock_nr_pages and MAX_ORDER_NR_PAGES instead where >possible, so we don't have do deal with allocation orders. > >Add a comment why we have that restriction for now. > >Cc: "Michael S. Tsirkin" >Cc: Jason Wang >Cc: Pankaj Gupta >Signed-off-by: David Hildenbrand Reviewed-by: Wei Yang -- Wei Yang Help you, Help me