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[175.177.40.128]) by smtp.gmail.com with ESMTPSA id q188sm62516pfb.8.2021.02.09.15.51.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 15:51:37 -0800 (PST) Date: Wed, 10 Feb 2021 08:51:33 +0900 From: Naoya Horiguchi To: Andrew Morton Cc: linux-mm@kvack.org, Michal Hocko , Oscar Salvador , Tony Luck , Matthew Wilcox , "Aneesh Kumar K.V" , Naoya Horiguchi , linux-kernel@vger.kernel.org Subject: Re: [PATCH v1] mm, hwpoison: enable error handling on shmem thp Message-ID: <20210209235133.GA491550@u2004> References: <20210209062128.453814-1-nao.horiguchi@gmail.com> <20210209114640.73a68074f635852c2ce498e6@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-2022-jp Content-Disposition: inline In-Reply-To: <20210209114640.73a68074f635852c2ce498e6@linux-foundation.org> 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 Tue, Feb 09, 2021 at 11:46:40AM -0800, Andrew Morton wrote: > On Tue, 9 Feb 2021 15:21:28 +0900 Naoya Horiguchi wrote: > > > Currently hwpoison code checks PageAnon() for thp and refuses to handle > > errors on non-anonymous thps (just for historical reason). We now > > support non-anonymou thp like shmem one, so this patch suggests to enable > > to handle shmem thps. Fortunately, we already have can_split_huge_page() > > to check if a give thp is splittable, so this patch relies on it. > > Thanks. We're at -rc7 so I think I'll park this one for 5.12-rc1, > unless it is more urgent than I believe it to be? This patch is not so urgent, so I'm fine to make this targeted at 5.12-rc1. Thanks, Naoya Horiguchi