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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6140C433DB for ; Tue, 22 Dec 2020 08:30:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A146C224F9 for ; Tue, 22 Dec 2020 08:30:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726012AbgLVI3q (ORCPT ); Tue, 22 Dec 2020 03:29:46 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:34851 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725300AbgLVI3p (ORCPT ); Tue, 22 Dec 2020 03:29:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608625699; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JMn1z+3qEykzQHkIqp2VNssqA3PWvgFfJWR1Q6w9VTw=; b=Q6Ut4ZFm2CQuB77sAXJG+EA2HOgYvQC7takHL5cvUqUPX3Tbnm6ySEV4/by7xfqY/aSIHS mu8HBT/p3KNb/8vci/rBGaUB9tCIZxu+nD89enWjIMFLTjG2u9hK/5HLnr3mnFYm+LoJtB hhLrCxRStiTX0HW++vo6GoWDizJvmIo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-61-Q9G-OknUPU6OWsvwirBTBg-1; Tue, 22 Dec 2020 03:28:14 -0500 X-MC-Unique: Q9G-OknUPU6OWsvwirBTBg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4C301107ACE8; Tue, 22 Dec 2020 08:28:12 +0000 (UTC) Received: from [10.36.113.220] (ovpn-113-220.ams2.redhat.com [10.36.113.220]) by smtp.corp.redhat.com (Postfix) with ESMTP id DDF0C5D9D3; Tue, 22 Dec 2020 08:28:05 +0000 (UTC) Subject: Re: [RFC PATCH 2/3] virtio-balloon: add support for providing free huge page reports to host To: Alexander Duyck , Mel Gorman , Andrew Morton , Andrea Arcangeli , Dan Williams , "Michael S. Tsirkin" , Jason Wang , Dave Hansen , Michal Hocko , Liang Li , Mike Kravetz , Liang Li , linux-mm@kvack.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, qemu-devel@nongnu.org References: <20201222074810.GA30047@open-light-1.localdomain> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: <6846ff7a-b302-a0fd-1cd9-af0f2ee733ea@redhat.com> Date: Tue, 22 Dec 2020 09:28:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: <20201222074810.GA30047@open-light-1.localdomain> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22.12.20 08:48, Liang Li wrote: > Free page reporting only supports buddy pages, it can't report the > free pages reserved for hugetlbfs case. On the other hand, hugetlbfs The virtio-balloon free page reporting interface accepts a generic sg, so it isn't glue to buddy pages. There is no need for a new interface. -- Thanks, David / dhildenb