Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752097AbdFOCux (ORCPT ); Wed, 14 Jun 2017 22:50:53 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:51981 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751711AbdFOCuv (ORCPT ); Wed, 14 Jun 2017 22:50:51 -0400 Subject: Re: [HELP-NEEDED, PATCH 0/3] Do not loose dirty bit on THP pages From: "Aneesh Kumar K.V" To: Will Deacon Cc: "Kirill A. Shutemov" , Andrew Morton , Vlastimil Babka , Vineet Gupta , Russell King , Catalin Marinas , Ralf Baechle , "David S. Miller" , Heiko Carstens , Martin Schwidefsky , Andrea Arcangeli , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, mark.rutland@arm.com References: <20170614135143.25068-1-kirill.shutemov@linux.intel.com> <20170614165513.GD17632@arm.com> <548e33cb-e737-bb39-91a3-f66ee9211262@linux.vnet.ibm.com> Date: Thu, 15 Jun 2017 08:20:32 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-Version: 1.0 In-Reply-To: <548e33cb-e737-bb39-91a3-f66ee9211262@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 17061502-0028-0000-0000-000007D00D84 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007234; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000212; SDB=6.00874929; UDB=6.00435567; IPR=6.00655020; BA=6.00005421; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00015831; XFM=3.00000015; UTC=2017-06-15 02:50:49 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17061502-0029-0000-0000-000036395DC4 Message-Id: <95a2756a-dd56-e042-95ed-90f4078e0380@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-06-15_02:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000 definitions=main-1706150047 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 296 Lines: 16 On Thursday 15 June 2017 06:35 AM, Aneesh Kumar K.V wrote: > > W.r.t pmdp_invalidate() usage, I was wondering whether we can do that > early in __split_huge_pmd_locked(). > BTW by moving pmdp_invalidate early, we can then get rid of pmdp_huge_split_prepare(vma, haddr, pmd); -aneesh