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[2003:cb:c73c:d500:78e5:f448:8bef:a30]) by smtp.gmail.com with ESMTPSA id e1-20020a5d65c1000000b00301a351a8d6sm2558387wrw.84.2023.05.30.02.12.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 30 May 2023 02:12:04 -0700 (PDT) Message-ID: Date: Tue, 30 May 2023 11:12:03 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: [PATCH v10 5/5] selftest: add a testcase of ksm zero pages To: Yang Yang , akpm@linux-foundation.org Cc: imbrenda@linux.ibm.com, jiang.xuexin@zte.com.cn, linux-kernel@vger.kernel.org, linux-mm@kvack.org, ran.xiaokai@zte.com.cn, xu.xin.sc@gmail.com, xu.xin16@zte.com.cn References: <202305251341580149313@zte.com.cn> <20230525055410.27423-1-yang.yang29@zte.com.cn> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20230525055410.27423-1-yang.yang29@zte.com.cn> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 3832280017 X-Rspam-User: X-Stat-Signature: dzod9fte1bmxrbczdoeq6zoks4cw4mag X-Rspamd-Server: rspam01 X-HE-Tag: 1685437928-346622 X-HE-Meta: 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 G5Qx1WLE 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.002232, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 25.05.23 07:54, Yang Yang wrote: > From: xu xin > > Add a function test_unmerge_zero_page() to test the functionality on > unsharing and counting ksm-placed zero pages and counting of this patch > series. > > test_unmerge_zero_page() actually contains four subjct test objects: > (1) whether the count of ksm zero pages can update correctly after merging; > (2) whether the count of ksm zero pages can update correctly after > unmerging by madvise(...MADV_UNMERGEABLE); > (3) whether the count of ksm zero pages can update correctly after > unmerging by triggering write fault. > (4) whether ksm zero pages are really unmerged. > > Signed-off-by: xu xin > Reviewed-by: Xiaokai Ran > Reviewed-by: Yang Yang > Cc: Claudio Imbrenda > Cc: David Hildenbrand > Cc: Xuexin Jiang > --- Acked-by: David Hildenbrand Thanks! -- Thanks, David / dhildenb