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Tue, 30 Jun 2020 23:45:19 +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 05UNcdLK059805; Tue, 30 Jun 2020 23:45:18 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserp3030.oracle.com with ESMTP id 31y52jjbb1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 30 Jun 2020 23:45:18 +0000 Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 05UNjETr013266; Tue, 30 Jun 2020 23:45:15 GMT Received: from [192.168.2.112] (/50.38.35.18) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 30 Jun 2020 23:45:14 +0000 Subject: Re: [PATCH v3 02/15] mm, hwpoison: remove recalculating hpage To: nao.horiguchi@gmail.com, linux-mm@kvack.org Cc: mhocko@kernel.org, akpm@linux-foundation.org, osalvador@suse.de, tony.luck@intel.com, david@redhat.com, aneesh.kumar@linux.vnet.ibm.com, zeil@yandex-team.ru, naoya.horiguchi@nec.com, linux-kernel@vger.kernel.org References: <20200624150137.7052-1-nao.horiguchi@gmail.com> <20200624150137.7052-3-nao.horiguchi@gmail.com> From: Mike Kravetz Message-ID: Date: Tue, 30 Jun 2020 16:45:12 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <20200624150137.7052-3-nao.horiguchi@gmail.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=9668 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 phishscore=0 mlxscore=0 adultscore=0 suspectscore=0 bulkscore=0 malwarescore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006300164 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9668 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 mlxlogscore=999 priorityscore=1501 impostorscore=0 bulkscore=0 clxscore=1015 malwarescore=0 phishscore=0 adultscore=0 cotscore=-2147483648 lowpriorityscore=0 suspectscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006300164 X-Rspamd-Queue-Id: 9C3F4100E6903 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam02 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 6/24/20 8:01 AM, nao.horiguchi@gmail.com wrote: > From: Naoya Horiguchi > > hpage is never used after try_to_split_thp_page() in memory_failure(), > so we don't have to update hpage. So let's not recalculate/use hpage. > > Suggested-by: "Aneesh Kumar K.V" > Signed-off-by: Naoya Horiguchi Reviewed-by: Mike Kravetz -- Mike Kravetz