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From: Naoya Horiguchi To: Miaohe Lin Cc: akpm@linux-foundation.org, naoya.horiguchi@nec.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/8] mm: memory-failure: Don't account hwpoison_filter() filtered pages Message-ID: <20230710075649.GC1686200@ik1-406-35019.vs.sakura.ne.jp> References: <20230708085744.3599311-1-linmiaohe@huawei.com> <20230708085744.3599311-4-linmiaohe@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230708085744.3599311-4-linmiaohe@huawei.com> X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: A4A6380003 X-Stat-Signature: z3wgiyyfdc5btxpxby9g7u9egmioki6p X-Rspam-User: X-HE-Tag: 1688975815-36079 X-HE-Meta: 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 mf55JHaz D2vZN60CAazBNd36rM9upDsRtilKtA+fHvgKnU59MZDQKjjW1J1nNeeQLWSjyqPKUUGo9U5WeKVxxeuoiIFG0/dS+I8EAuq5QPNWh3HhBHhJfsGYiByUBK4nuRbMYjYVI79Ira8GwRLx0z+4= 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 Sat, Jul 08, 2023 at 04:57:39PM +0800, Miaohe Lin wrote: > mf_generic_kill_procs() will return -EOPNOTSUPP when hwpoison_filter() > filtered dax page. In that case, action_result() isn't expected to be > called to update mf_stats. This will results in inaccurate but benign > memory failure handling statistics. Nice catch. > > Signed-off-by: Miaohe Lin Acked-by: Naoya Horiguchi