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=ham 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 30DE7C433DB for ; Tue, 22 Dec 2020 08:28:22 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C170D23130 for ; Tue, 22 Dec 2020 08:28:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C170D23130 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E17DC6B009B; Tue, 22 Dec 2020 03:28:20 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DC6A46B009C; Tue, 22 Dec 2020 03:28:20 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C8E7C6B009D; Tue, 22 Dec 2020 03:28:20 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0138.hostedemail.com [216.40.44.138]) by kanga.kvack.org (Postfix) with ESMTP id B33546B009B for ; Tue, 22 Dec 2020 03:28:20 -0500 (EST) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 7D7388249980 for ; Tue, 22 Dec 2020 08:28:20 +0000 (UTC) X-FDA: 77620241160.09.party09_500d9632745e Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin09.hostedemail.com (Postfix) with ESMTP id 60204180AD815 for ; Tue, 22 Dec 2020 08:28:20 +0000 (UTC) X-HE-Tag: party09_500d9632745e X-Filterd-Recvd-Size: 3161 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Tue, 22 Dec 2020 08:28:19 +0000 (UTC) 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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