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Sun, 24 Jan 2021 21:07:19 -0800 (PST) MIME-Version: 1.0 References: <20210117151053.24600-1-songmuchun@bytedance.com> <20210117151053.24600-7-songmuchun@bytedance.com> <88a384ba-8487-c66b-e7b-eb6055e3775@google.com> In-Reply-To: <88a384ba-8487-c66b-e7b-eb6055e3775@google.com> From: Muchun Song Date: Mon, 25 Jan 2021 13:06:44 +0800 Message-ID: Subject: Re: [External] Re: [PATCH v13 06/12] mm: hugetlb: set the PageHWPoison to the raw error page To: David Rientjes Cc: Jonathan Corbet , Mike Kravetz , Thomas Gleixner , mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, dave.hansen@linux.intel.com, luto@kernel.org, Peter Zijlstra , viro@zeniv.linux.org.uk, Andrew Morton , paulmck@kernel.org, mchehab+huawei@kernel.org, pawan.kumar.gupta@linux.intel.com, Randy Dunlap , oneukum@suse.com, anshuman.khandual@arm.com, jroedel@suse.de, Mina Almasry , Matthew Wilcox , Oscar Salvador , Michal Hocko , "Song Bao Hua (Barry Song)" , David Hildenbrand , =?UTF-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPoyDnm7TkuZ8p?= , Xiongchun duan , linux-doc@vger.kernel.org, LKML , Linux Memory Management List , linux-fsdevel Content-Type: text/plain; charset="UTF-8" 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 Mon, Jan 25, 2021 at 8:06 AM David Rientjes wrote: > > > On Sun, 17 Jan 2021, Muchun Song wrote: > > > Because we reuse the first tail vmemmap page frame and remap it > > with read-only, we cannot set the PageHWPosion on a tail page. > > So we can use the head[4].private to record the real error page > > index and set the raw error page PageHWPoison later. > > > > Signed-off-by: Muchun Song > > Reviewed-by: Oscar Salvador > > Acked-by: David Rientjes Thanks.