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=-5.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 D5762C433E1 for ; Thu, 21 May 2020 21:45:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AF6D0206B6 for ; Thu, 21 May 2020 21:45:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="LZPF0keT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729827AbgEUVpw (ORCPT ); Thu, 21 May 2020 17:45:52 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:57410 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726814AbgEUVpv (ORCPT ); Thu, 21 May 2020 17:45:51 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04LLbpUG011928; Thu, 21 May 2020 21:45:32 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=QnnCnZTpx2LIhzvzw+hV0XneG6vuZywiIs8mB0C3i8M=; b=LZPF0keTgv9RaqqYj1IFVSbTrnI7NaE767mfgyghRSG4U4kZPbcOoKx9iMmKk+Jh+YGV juY1oQNoo1KnAcMNLkOoDfmVI5VGcSQUC+vEXDdW83Vduk+8h6HYS+XbzrQmEHOln9bi 33exmDO1/hO08cF4u0D67LyHzN0qif+DFKqV5F8FQl6p0dm6ndTfrrCrucmC91nVgu21 1EtLjmKXrHkAMnI6riL6u7u60KgFMC7PZD6YeHlvfNsTn+0bJe7DI62+3t1JdNmlB4yI Rk0AaprxsD+ZVliTvoDKUWw7pyQixPFzK495X2IZUJn+sRlzXt7HAjEk7EXWYIPzp3i+ qw== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by aserp2120.oracle.com with ESMTP id 31284mavbk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 21 May 2020 21:45:32 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04LLcg39083184; Thu, 21 May 2020 21:43:32 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserp3030.oracle.com with ESMTP id 313gj6c6xa-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 21 May 2020 21:43:32 +0000 Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 04LLhSjN002470; Thu, 21 May 2020 21:43:29 GMT Received: from [192.168.2.112] (/50.38.35.18) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 21 May 2020 14:43:28 -0700 Subject: Re: [PATCH 05/11] mm/hugetlb: make hugetlb migration target allocation APIs CMA aware To: js1304@gmail.com, Andrew Morton Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, kernel-team@lge.com, Vlastimil Babka , Christoph Hellwig , Roman Gushchin , Naoya Horiguchi , Michal Hocko , Joonsoo Kim References: <1589764857-6800-1-git-send-email-iamjoonsoo.kim@lge.com> <1589764857-6800-6-git-send-email-iamjoonsoo.kim@lge.com> From: Mike Kravetz Message-ID: <4c952f57-41d4-bd51-700b-554c1cf9bf6f@oracle.com> Date: Thu, 21 May 2020 14:43:27 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <1589764857-6800-6-git-send-email-iamjoonsoo.kim@lge.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9628 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 spamscore=0 malwarescore=0 mlxscore=0 adultscore=0 bulkscore=0 suspectscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005210160 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9628 signatures=668686 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 mlxscore=0 cotscore=-2147483648 impostorscore=0 malwarescore=0 mlxlogscore=999 lowpriorityscore=0 phishscore=0 spamscore=0 bulkscore=0 adultscore=0 priorityscore=1501 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005210160 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/17/20 6:20 PM, js1304@gmail.com wrote: > From: Joonsoo Kim > > There is a user who do not want to use CMA memory for migration. Until > now, it is implemented by caller side but it's not optimal since there > is limited information on caller. This patch implements it on callee side > to get better result. > > Signed-off-by: Joonsoo Kim Thank you! Avoiding CMA works much better with this new skip_cma field. Acked-by: Mike Kravetz -- Mike Kravetz