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Mon, 28 Sep 2026 17:20:27 -0700 (PDT) From: Donggeun Yoo To: "David Hildenbrand (Arm)" Cc: akpm@linux-foundation.org, rppt@kernel.org, peterx@redhat.com, surenb@google.com, aarcange@redhat.com, ljs@kernel.org, liam@infradead.org, vbabka@kernel.org, mhocko@suse.com, shuah@kernel.org, kirill@shutemov.name, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, donggeunyoo.kernel@gmail.com Subject: Re: [PATCH v3 2/2] selftests/mm: add tests for UFFDIO_MOVE of a uffd-protected swap entry Date: Tue, 29 Sep 2026 09:20:19 +0900 Message-ID: <20260929002019.1847080-1-donggeunyoo.kernel@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: <20260926124145.2878520-1-donggeunyoo.kernel@gmail.com> <20260926124145.2878520-3-donggeunyoo.kernel@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: 8gbpp7iei98e653s4dsaxcdjj3wq3rns X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 40E0240009 X-HE-Tag: 1790641229-912402 X-HE-Meta: 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 tWPYA8sN 1xwTJ7ReYd3v5DPcPLnml2VpfOGIIbdxM2BHv/UF6MbgkizmUgEVPv6USqkhfcUKD0t58jsEE+FqVVlAOLmwqivJ//tzIydiH3xtQtyn8sgH3N4aFoPIKHqzoYqzoGftXBLb2PFUA3MF6JxQ/Ps6N1IsmT7Y2/AbUravt+yWeYzErmhlB1oYXzMsbXAnWEcU15LAOIY/EX+E/a6IQlxznUd/V/2NacYZ+XijLsBau4jcan2OdRTxtEKxdqPv7d7yVClEBuBOiupXGObgNgiw0gSPNKIsedixi7VR1AE2ki3CWQfTQb49ybJDBKIWF/4wN8v/b5K++XG0jBg/ZZHPCl26u4qyVmXZlYgaVtZj5G1bYSg3lNM4B43vy2bpWMJvph4NaJ1DIhIPRkCzDNxVDItxBhlS9YPPAw41aE6M6Adn9dGcT2wKuYTwsvbJaZDWs7dJ9ri8IoGWVCz529xmT1EoXek4iIJZr0preTetRJHttZKQT/4LFt2BsJ8zzOVgEh0yeLy/p2CvLO9NYLEVgIbKe/zcl5QdaHibJ16bkPlbYDzkhUC0HEHQUrA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 28 Sep 2026 11:11:50 +0200, David Hildenbrand (Arm) wrote: > Why not combine it with the protection? Will do. > Why not do that at the very top? Will do. > You can set that all already when initializing aboce Will do. > BTW, why do we fail the entire test here instead of only this test case? I did that because the test is about the bit after the move, not the move itself, so a failing move is closer to a setup failure. I thought it was better to stop there and let whoever runs it check their environment before running the rest. But having gone through the file's history, I see the direction has been to skip or fail just that one test and keep the rest running. I'll change it in v4. Thanks for the review! Donggeun