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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 C8D43C4CEC9 for ; Wed, 18 Sep 2019 13:38:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A5664208C0 for ; Wed, 18 Sep 2019 13:38:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728764AbfIRNid (ORCPT ); Wed, 18 Sep 2019 09:38:33 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:27460 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726618AbfIRNic (ORCPT ); Wed, 18 Sep 2019 09:38:32 -0400 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x8IDWvV6118589; Wed, 18 Sep 2019 09:38:20 -0400 Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 2v3jngxkrx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Sep 2019 09:38:20 -0400 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.27/8.16.0.27) with SMTP id x8IDXQjB120611; Wed, 18 Sep 2019 09:38:20 -0400 Received: from ppma02wdc.us.ibm.com (aa.5b.37a9.ip4.static.sl-reverse.com [169.55.91.170]) by mx0a-001b2d01.pphosted.com with ESMTP id 2v3jngxkra-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Sep 2019 09:38:19 -0400 Received: from pps.filterd (ppma02wdc.us.ibm.com [127.0.0.1]) by ppma02wdc.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id x8IDPjPZ009354; Wed, 18 Sep 2019 13:38:19 GMT Received: from b03cxnp08028.gho.boulder.ibm.com (b03cxnp08028.gho.boulder.ibm.com [9.17.130.20]) by ppma02wdc.us.ibm.com with ESMTP id 2v37jvwmed-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 18 Sep 2019 13:38:19 +0000 Received: from b03ledav006.gho.boulder.ibm.com (b03ledav006.gho.boulder.ibm.com [9.17.130.237]) by b03cxnp08028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x8IDcHO160227972 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Sep 2019 13:38:17 GMT Received: from b03ledav006.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8ADD0C6063; Wed, 18 Sep 2019 13:38:17 +0000 (GMT) Received: from b03ledav006.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 92B16C6057; Wed, 18 Sep 2019 13:38:14 +0000 (GMT) Received: from [9.199.34.110] (unknown [9.199.34.110]) by b03ledav006.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 18 Sep 2019 13:38:14 +0000 (GMT) Subject: Re: [PATCH 0/2] pseries/hotplug: Change the default behaviour of cede_offline To: Michael Ellerman , "Naveen N. Rao" , "Gautham R. Shenoy" , Nathan Lynch , Nicholas Piggin , Tyrel Datwyler Cc: Kamalesh Babulal , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Vaidyanathan Srinivasan References: <1568284541-15169-1-git-send-email-ego@linux.vnet.ibm.com> <87r24ew5i0.fsf@mpe.ellerman.id.au> <1568788924.kxcnnog4r7.naveen@linux.ibm.com> <877e65x2lk.fsf@mpe.ellerman.id.au> From: "Aneesh Kumar K.V" Message-ID: <9737a962-c88c-f372-d67e-2d0c45260a4f@linux.ibm.com> Date: Wed, 18 Sep 2019 19:08:12 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <877e65x2lk.fsf@mpe.ellerman.id.au> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-09-18_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1909180138 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/18/19 5:01 PM, Michael Ellerman wrote: > "Naveen N. Rao" writes: >> Michael Ellerman wrote: >>> "Gautham R. Shenoy" writes: >>>> From: "Gautham R. Shenoy" > .... >> Also, since we expose [S]PURR through sysfs, any tools that make use of >> that directly are also affected due to this. > > But again if we've had the current behaviour for 10 years then arguably > that's now the correct behaviour. Or nobody is looking at PURR based accounting/usage metric on Linux. We got some customers complaining about this recently once they started using the metric. -aneesh