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Mon, 20 Jan 2025 17:06:38 +0800 Message-ID: <7867c162-6a2e-4291-ac57-a7bb6df5c4ce@huawei.com> Date: Mon, 20 Jan 2025 17:06:37 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird CC: , , , , , , , Subject: Re: [PATCH v2 1/3] mm: memory-failure: update ttu flag inside unmap_poisoned_folio To: References: <20250116061657.227027-1-mawupeng1@huawei.com> <20250116061657.227027-2-mawupeng1@huawei.com> <21674fcc-bd5d-3e32-6e45-f0a16ab93202@huawei.com> From: mawupeng In-Reply-To: <21674fcc-bd5d-3e32-6e45-f0a16ab93202@huawei.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.178.120] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemg100017.china.huawei.com (7.202.181.58) X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 5F50240007 X-Stat-Signature: cx3ba8mkk586y8t1rp3rwj3hkcai8gj6 X-Rspam-User: X-HE-Tag: 1737364001-61131 X-HE-Meta: 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 NVu79ua0 QLJEqf2d/AkGlv97JfhZ4yAyhnpImnqVuCgcUI8hBa9U3S2geQN0kkmEDEbZWejGd7ZUYfRyeJ9SVflDIAIvu/OQR5VJmfogdq2f6PAZ3V+npXbcIc+CG0hziabveEBiwFr/GJxKH3Wjxxom9zK+84mv1HuZB72vCGxcbpl6sBov9+T46VqGR57CgknPSVXrhjqyBD2QBYs8ajjXYSKhA+bKV0QNOaQqSbNmC55ZD0b50vEtJmF9jen1mWZYe0lXEqAe7+63wIbxYPTBtLh19id/26Ol26xzxdmahKBWzPl2u5yExySY4EsBmwQ== 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 2025/1/20 14:24, Miaohe Lin wrote: > On 2025/1/16 14:16, Wupeng Ma wrote: >> From: Ma Wupeng > > Thanks for your patch. Some nits below. > >> >> Commit 6da6b1d4a7df ("mm/hwpoison: convert TTU_IGNORE_HWPOISON to >> TTU_HWPOISON") introduce TTU_HWPOISON to replace TTU_IGNORE_HWPOISON >> in order to stop send SIGBUS signal when accessing an error page after >> a memory error on a clean folio. However during page migration, anon >> folio must be set with TTU_HWPOISON during unmap_*(). For pagecache >> we need some policy just like the one in hwpoison_user_mappings to >> set this flag. So move this policy from hwpoison_user_mappings to >> unmap_poisoned_folio to handle this waring properly. > > s/waring/warning/g Thanks for your reply. will be fixed later. > >> >> Waring will be produced during unamp poison folio with the following log: > > s/Waring/Warning/g Thanks for your reply. will be fixed later.