Received: by 2002:a25:c593:0:0:0:0:0 with SMTP id v141csp6632784ybe; Wed, 18 Sep 2019 06:43:35 -0700 (PDT) X-Google-Smtp-Source: APXvYqzUF5VETHBrik3XwlpnwqHWt+OF7OAT5i2BSMFwEGthDxd4z5dHPsTNmpfVUIizR3ll1G5p X-Received: by 2002:a50:eb93:: with SMTP id y19mr5878426edr.94.1568814215516; Wed, 18 Sep 2019 06:43:35 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1568814215; cv=none; d=google.com; s=arc-20160816; b=iBH/+JGpSbBV6doumAVRwm9LWz7tohCI26fuV3Ox70wpXns0pp3sJ3ELVrLwJHGL1K zE7+vcc0ojnCwHBrKz2GVC4ZK4dbc4RuCzTeQ3Oy5PPfU47Hjk3VUcQ1V+LmS5+h+rT5 S3xozEUop1OJa0fT4qQ08tM1rgOh21+SSfA01CNoD9HRleyZf3Ps3bqcpy/foATgwsaV p32rPvdH0mFEjqRcKyyXz6Ghbwp/nxi57VQztk6SAq/yhjmGWdOpOJ9yU2x8UknR0m9K qsDywA1ki8CnjYk+aBOPNT7p2rnNClWOjHRXvm762v9r8nT9MUCqNAprUJfoOvamk9qb mitQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:cc:to:subject; bh=XUT99pliF+5gcVZ1Nh7awfg3L71lxsRfe0BLmww/G4I=; b=pJKtj7xVZzGS3MmxDaS6MNj/M7Xb++qe9S35Ow8s9CEzOav+sw9pFI+dQsyw08HubQ IWfSFO+qCWBo3svwpEVgljoj0WR9ci2YN3jC+8rRcG7PckIfhBzCRVNCIvRpBvgNKZfB jpgQwf+MpwF2hmvBgres8NTUlj/45w8nGgJhZee9C7OdJpBN3D6KTsvBAWa8O+0UuDE8 kL/mjTmro9OCpenUOquQ5PlMyvkyMa9HQVfo92qUD51CeUF082Zmaa238xMHiWRN4Ooi /WXrI6vPeT65WTiJFNtTmrCmsngMgQ9h/58TdQ65NQ3d5H239YOwV5G6LtZCjl7Kx/Jg c2Dw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=ibm.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id e10si968857ejr.222.2019.09.18.06.43.11; Wed, 18 Sep 2019 06:43:35 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=ibm.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728521AbfIRNic (ORCPT + 99 others); Wed, 18 Sep 2019 09:38:32 -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