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Mon, 7 Nov 2022 21:21:03 -0800 Message-ID: <699a1ac8-75a4-c3ab-def9-3740c6a2fdb2@quicinc.com> Date: Tue, 8 Nov 2022 10:51:00 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [PATCH V5] mm: fix use-after free of page_ext after race with memory-offline Content-Language: en-US To: Vlastimil Babka , , , , , , , , , , , CC: , References: <1661496993-11473-1-git-send-email-quic_charante@quicinc.com> <66279414-6cc5-d4a4-176e-a75ba7d36037@suse.cz> From: Charan Teja Kalla In-Reply-To: <66279414-6cc5-d4a4-176e-a75ba7d36037@suse.cz> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: aq6-ZBPgno688IJPPV1dse9Eg5M1-xE- X-Proofpoint-GUID: aq6-ZBPgno688IJPPV1dse9Eg5M1-xE- X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-07_11,2022-11-07_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 suspectscore=0 priorityscore=1501 mlxscore=0 mlxlogscore=558 bulkscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 malwarescore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211080027 ARC-Message-Signature: i=1; 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dkim=pass header.d=quicinc.com header.s=qcppdkim1 header.b=ZETKkIfc; spf=pass (imf29.hostedemail.com: domain of quic_charante@quicinc.com designates 205.220.168.131 as permitted sender) smtp.mailfrom=quic_charante@quicinc.com; dmarc=pass (policy=none) header.from=quicinc.com X-Stat-Signature: 4t36fxo4t7o83716qmk199awiu9hhteo X-HE-Tag: 1667884881-343012 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 11/7/2022 9:11 PM, Vlastimil Babka wrote: > Hi, looks like this added a new warning to a previously clean "make W=1 mm/" > build: > mm/page_ext.c:178: warning: Function parameter or member 'page_ext' not > described in 'page_ext_put' > > Can you fixup please? Thanks Vlastimil for reporting this. Raised changes @https://lore.kernel.org/all/1667884582-2465-1-git-send-email-quic_charante@quicinc.com/ Thanks, Charan