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[2003:d8:2f01:5500:ba83:3fd7:6836:62f6]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45870553c78sm25219875e9.15.2025.07.24.09.27.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Jul 2025 09:27:59 -0700 (PDT) Message-ID: <6771d9f1-c0dc-4ca4-99f2-1fffecb99938@redhat.com> Date: Thu, 24 Jul 2025 18:27:58 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/3] fs/proc/task_mmu: hold PTL in pagemap_hugetlb_range and gather_hugetlb_stats To: Jinjiang Tu , akpm@linux-foundation.org, dev.jain@arm.com, catalin.marinas@arm.com, lorenzo.stoakes@oracle.com, thiago.bauermann@linaro.org, superman.xpt@gmail.com, christophe.leroy@csgroup.eu, brahmajit.xyz@gmail.com, andrii@kernel.org, avagin@gmail.com, baolin.wang@linux.alibaba.com, ryan.roberts@arm.com, hughd@google.com, rientjes@google.com, mhocko@suse.com, joern@logfs.org Cc: linux-mm@kvack.org, wangkefeng.wang@huawei.com References: <20250724090958.455887-1-tujinjiang@huawei.com> <20250724090958.455887-3-tujinjiang@huawei.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Stat-Signature: nz5bkdrxms1fi6pd5iw78trtmkft94jj X-Rspam-User: X-Rspamd-Queue-Id: D03D620015 X-Rspamd-Server: rspam02 X-HE-Tag: 1753374484-998624 X-HE-Meta: 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 gbku4IEl 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 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: List-Subscribe: List-Unsubscribe: On 24.07.25 11:09, Jinjiang Tu wrote: > Hold PTL in pagemap_hugetlb_range() and gather_hugetlb_stats() to avoid > operating on stale page, as pagemap_pmd_range() and gather_pte_stats() have > done. > > Signed-off-by: Jinjiang Tu > --- Acked-by: David Hildenbrand -- Cheers, David / dhildenb