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[2620:137:e000::1:20]) by mx.google.com with ESMTP id q37-20020a631f65000000b003fe2bc67bbdsi18434842pgm.116.2022.07.13.09.47.49; Wed, 13 Jul 2022 09:48:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236582AbiGMPTp (ORCPT + 99 others); Wed, 13 Jul 2022 11:19:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231448AbiGMPTo (ORCPT ); Wed, 13 Jul 2022 11:19:44 -0400 Received: from mail-wr1-f52.google.com (mail-wr1-f52.google.com [209.85.221.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A0443C8CF; Wed, 13 Jul 2022 08:19:43 -0700 (PDT) Received: by mail-wr1-f52.google.com with SMTP id f2so15958576wrr.6; Wed, 13 Jul 2022 08:19:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=jb4nt965TNcwr+NhIm2x9TnJU/UEz0cJsDnLaQo41aA=; b=M3M6IUjK5yDcXTDH8yOwKD4uA624A8lcyf1UhCRcwc2afvkJD4RGbNvp7RUvr62SDL 9MIajchKqyBpmLOuSPQXMfr2p0rA2sBDscwRqBNCL1vZHJiJLckqzcoUDL8QEKAr+odS /4GOvdYOMTIakIPegQi1s1UhPLFw2+dC5rKO81+rrVVmaF9nIy+YYV5vhW47RxJCV0bD UXIkuRFZeIEo8wQF88wckIUieWuk0N+icR/8R9Une3FEjAq4RqAUOr7tXiMqMaB9IUJi UwOneG0hc5FBt5BfOSejKUWptYdZZRyEHr6YIKx1evC1XthixYaIQKb93WBumXMSoi4X H9Hg== X-Gm-Message-State: AJIora8NGxEz80wKOm0xXOvH0YBjHVKt1VagPzvzM+FsP0YgNUmX/nVk a2IIadmWl1MqQffT/z1yNSgTwo2IxUE= X-Received: by 2002:a5d:64ce:0:b0:21d:a952:31d5 with SMTP id f14-20020a5d64ce000000b0021da95231d5mr3745169wri.667.1657725581691; Wed, 13 Jul 2022 08:19:41 -0700 (PDT) Received: from liuwe-devbox-debian-v2 ([51.145.34.42]) by smtp.gmail.com with ESMTPSA id p2-20020a1c7402000000b003a2fdde48d1sm1281802wmc.25.2022.07.13.08.19.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Jul 2022 08:19:41 -0700 (PDT) Date: Wed, 13 Jul 2022 15:19:27 +0000 From: Wei Liu To: "Michael Kelley (LINUX)" Cc: Alexander Atanasov , KY Srinivasan , Haiyang Zhang , Stephen Hemminger , Wei Liu , Dexuan Cui , "kernel@openvz.org" , "linux-hyperv@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v3 1/1] Create debugfs file with hyper-v balloon usage information Message-ID: <20220713151927.e6w5gcb67ffh4zlx@liuwe-devbox-debian-v2> References: <20220711181825.52318-1-alexander.atanasov@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 12, 2022 at 04:24:12PM +0000, Michael Kelley (LINUX) wrote: > From: Alexander Atanasov Sent: Monday, July 11, 2022 11:18 AM > > > > Allow the guest to know how much it is ballooned by the host. > > It is useful when debugging out of memory conditions. > > > > When host gets back memory from the guest it is accounted > > as used memory in the guest but the guest have no way to know > > how much it is actually ballooned. > > > > Expose current state, flags and max possible memory to the guest. > > While at it - fix a 10+ years old typo. > > > > Signed-off-by: Alexander Atanasov > > --- [...] > > Reviewed-by: Michael Kelley I added "Drivers: hv:" prefix to the subject line and applied it to hyperv-next. Thanks.