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 smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 F2556C433EF for ; Mon, 10 Jan 2022 06:43:54 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 741DB40122; Mon, 10 Jan 2022 06:43:54 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6j3iAeODFh18; Mon, 10 Jan 2022 06:43:53 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp2.osuosl.org (Postfix) with ESMTPS id E99814031D; Mon, 10 Jan 2022 06:43:52 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id C1CD8C002F; Mon, 10 Jan 2022 06:43:52 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id E9E2FC001E for ; Mon, 10 Jan 2022 06:43:51 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id C54AD408C3 for ; Mon, 10 Jan 2022 06:43:51 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp4.osuosl.org (amavisd-new); dkim=pass (1024-bit key) header.d=redhat.com Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JFWxSpmjcDoh for ; Mon, 10 Jan 2022 06:43:50 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by smtp4.osuosl.org (Postfix) with ESMTPS id CF0CA408C2 for ; Mon, 10 Jan 2022 06:43:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1641797028; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0UvMVH7WTutQSpoo5QOJ8lH39ONqkVGG5QpK+2wuIr4=; b=I6edVCQVYHRVX8ztH6u1m9CajmDcTyE2TN2CQLXqquCwAqxqGC//Zy0y/cIzZOIie/AF3L 0crnapZPIk8pzNPTC9wYCbB9DpnML6nrW1GbjRC9/bDt7HmSkNty76vtK2vF5A5ru0Y3Cn +tc4RLw8nESb6kmMIAR0TXsoYbdX+2c= Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-8-ue_pLY2fNtSCLDeNIPX9XQ-1; Mon, 10 Jan 2022 01:43:47 -0500 X-MC-Unique: ue_pLY2fNtSCLDeNIPX9XQ-1 Received: by mail-pf1-f199.google.com with SMTP id w189-20020a6262c6000000b004ba80a30727so7364822pfb.1 for ; Sun, 09 Jan 2022 22:43:47 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=0UvMVH7WTutQSpoo5QOJ8lH39ONqkVGG5QpK+2wuIr4=; b=oEZMwW2dxza+hsHSSnRvUjbs7a5xw8JiwUG2PBI6YH+pI0BFqIxBQ6+yfg4DZFsDTq blx66qA/4mzEEeOnDdfqYu0CFre6KwZMASexWPurl0OHTPQJvRAit5Bnz1O66XxnwzKh ll9RBQ7lqONN9EXWNEPUgFr1Idpcr3PUwn032/VvybC4pdS21mgzQ4Kj12DSykOnsXil M+QUs/JdecWrPy6o7Sy49xzLCNQ6h1vKSn1tzFdgZUUPXKq84NaAt3/r9ZTSkovfDxN6 jpgrZYYXdlXZ5uLOq0qBw7GcedqyZEPKj9a3JghaotjXNCKMH1jmAuwIbKrDcXY94WMG 1FLw== X-Gm-Message-State: AOAM533U77D6mlrsNAcDJmgth/WPKZz6eSBeIpQtsGz1CBiDzPBMd7sY mkpZHSB0sb32gLl2dkwtje26Qwe3ivyyeQSR4itwiiXOUC/dgBjEvw37lcGKLCHAMfXtkwBkd3D 3GhCTwks6xqOIms2uZeSqMq8omvUVMTob9+Yo4WzcQg== X-Received: by 2002:a17:902:b189:b0:149:6c45:24c with SMTP id s9-20020a170902b18900b001496c45024cmr67116660plr.21.1641797026403; Sun, 09 Jan 2022 22:43:46 -0800 (PST) X-Google-Smtp-Source: ABdhPJytu8kA6lg5HVTMD0wDgZuhM2g4fc5WJQ29ZdlklKsZU98g5v7kKWhRrj7EVTgYG2OS9qOMeQ== X-Received: by 2002:a17:902:b189:b0:149:6c45:24c with SMTP id s9-20020a170902b18900b001496c45024cmr67116652plr.21.1641797026163; Sun, 09 Jan 2022 22:43:46 -0800 (PST) Received: from [10.72.13.131] ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id lx15sm979190pjb.37.2022.01.09.22.43.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 09 Jan 2022 22:43:45 -0800 (PST) Message-ID: Date: Mon, 10 Jan 2022 14:43:39 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.4.1 Subject: Re: [PATCH 2/6] virtio: split: alloc indirect desc with extra To: Xuan Zhuo , virtualization@lists.linux-foundation.org References: <20220107063306.23240-1-xuanzhuo@linux.alibaba.com> <20220107063306.23240-3-xuanzhuo@linux.alibaba.com> From: Jason Wang In-Reply-To: <20220107063306.23240-3-xuanzhuo@linux.alibaba.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Cc: "Michael S. Tsirkin" X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" CuWcqCAyMDIyLzEvNyDkuIvljYgyOjMzLCBYdWFuIFpodW8g5YaZ6YGTOgo+IEluIHRoZSBzY2Vu YXJpbyB3aGVyZSBpbmRpcmVjdCBpcyBub3QgdXNlZCwgZWFjaCBkZXNjIGNvcnJlc3BvbmRzIHRv IGFuCj4gZXh0cmEsIHdoaWNoIGlzIHVzZWQgdG8gcmVjb3JkIGluZm9ybWF0aW9uIHN1Y2ggYXMg ZG1hLCBmbGFncywgYW5kCj4gbmV4dC4KPgo+IEluIHRoZSBzY2VuYXJpbyBvZiB1c2luZyBpbmRp cmVjdCwgdGhlIGFzc2lnbmVkIGRlc2MgZG9lcyBub3QgaGF2ZSB0aGUKPiBjb3JyZXNwb25kaW5n IGV4dHJhIHJlY29yZCBkbWEgaW5mb3JtYXRpb24sIGFuZCB0aGUgZG1hIGluZm9ybWF0aW9uIG11 c3QKPiBiZSBvYnRhaW5lZCBmcm9tIHRoZSBkZXNjIHdoZW4gdW5tYXAuCj4KPiBUaGlzIHBhdGNo IGFsbG9jYXRlcyB0aGUgY29ycmVzcG9uZGluZyBleHRyYSBhcnJheSB3aGVuIGluZGlyZWN0IGRl c2MgaXMKPiBhbGxvY2F0ZWQuIFRoaXMgaGFzIHRoZXNlIGFkdmFudGFnZXM6Cj4gMS4gUmVjb3Jk IHRoZSBkbWEgaW5mb3JtYXRpb24gb2YgZGVzYywgbm8gbmVlZCB0byByZWFkIGRlc2Mgd2hlbiB1 bm1hcAo+IDIuIEl0IHdpbGwgYmUgbW9yZSBjb252ZW5pZW50IGFuZCB1bmlmaWVkIGluIHByb2Nl c3NpbmcKPiAzLiBTb21lIGFkZGl0aW9uYWwgaW5mb3JtYXRpb24gY2FuIGJlIHJlY29yZGVkIGlu IGV4dHJhLCB3aGljaCB3aWxsIGJlCj4gICAgIHVzZWQgaW4gc3Vic2VxdWVudCBwYXRjaGVzLgoK ClR3byBxdWVzdGlvbnM6CgoxKSBJcyB0aGVyZSBhbnkgcGVyZm9ybWFuY2UgbnVtYmVyIGZvciB0 aGlzIGNoYW5nZT8gSSBndWVzcyBpdCBnaXZlcyAKbW9yZSBzdHJlc3Mgb24gdGhlIGNhY2hlLgoy KSBJcyB0aGVyZSBhIHJlcXVpcmVtZW50IHRvIG1peCB0aGUgcHJlIG1hcHBlZCBzZyB3aXRoIHVu bWFwcGVkIHNnPyBJZiAKbm90LCBhIHBlciB2aXJ0cXVldWUgZmxhZyBsb29rcyBzdWZmaWNpZW50 CgpUaGFua3MKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5nIGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgt Zm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4v bGlzdGluZm8vdmlydHVhbGl6YXRpb24=