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b=x+4TLVPJfWVheR3Z9js3trzsdpP8DumY5oO+sJhi+3/V8OC+lhyvahAFEbCpMf7zM /ZDFQtpN0hXZOXhGaiFuD7qfjrBaOmFf9hcpI/74AD8EfIs7SlWsilQWDsdewHiHSK RJWOwrXWcVDrh5HfkPGmelGUVGvojNcpisvJYQkg= Date: Sun, 28 Jan 2024 00:29:42 -0800 From: Andrew Morton To: Chunsheng Luo Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mempolicy: check home_node is in the nodes of policy Message-Id: <20240128002942.b0dbede1fcc4b80d2a398d15@linux-foundation.org> In-Reply-To: <20240126132240.24518-1-luochunsheng@ustc.edu> References: <20240126132240.24518-1-luochunsheng@ustc.edu> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 74D1D14000F X-Stat-Signature: sk4dzpdnausxgi5s3hc5rbqu1tebk6tc X-Rspam-User: X-HE-Tag: 1706430592-365867 X-HE-Meta: U2FsdGVkX19Wh5aauk6lbAyXsUxrz73SiBYQi+Ta/Ha9OZcLmOX25kYWFiCniPGIhIR6XQqlSLI303R3WJ7LeSu9tSL4twaTngLBM2SjCIvXdwQY21ZmuheX4vzZszwusdWZp+cw6514Xr7KC8GTAmRkeGHnAnJ37IJ3t4Zp5hZ3iyhkMdQCu/Dwf/muybPqixPU5HcDwIS3IhkUxCv3w1iNdpZv2QgiAvzP0ybij2glg7SRAwgNmMAjVspMg0j/CNj02pdm1C4enZlkTjinl7cMZdDQWDFrhXiKK/LzmX3EJZfvO5EZElgV9Se6e6VFD5OWWQhzJI0xG9E/4q+lAxMHDPmSlr5+2pujfdLJAL1wQPrPu4kXVkootx8rbcxdF/6m/oP7DQ90kEcLyUskSCtmgJ0BUgH+ZWQJkA+ucfAe/AfViFlcHQp05T75slvCZczdpIR8rOCffSkKcz5l6K3clooBptWDP3OCd1l+dEyUUFjPnUHIc3VHzdQVNIjev0CDIaxT823+uEleenEQ9BeKOzlCbemlyd1Bx73ULFTu2xWexbpjnGn0CB6DoRyJnfm94W8Aa9HJVO3PMEMVscBIilAnKkxA2vgD+TPfVibWLNd6IJv9+/TMsqG116f/Whl8fjxhOzcRJFfDvPeYyDX50BlnwyL0xseRzcV1pAOcBqIeI9xRHwevMWdpCW2oZ5aBGqNjjWtKBEmUNJoNGPkdVDOztD35gwapYJotx8rQX/TXaXBZy8fGgRCl0tx16SJeYy1V6CXzx8x/OG1yds0DEn/j/Gf81wthKqBk8jbn/8sX8X+langEsE/pnezzbIIwe0Ai7UFeZsI6939tz3fR3+gTbDOx4utoO6P95df9lcGu5d4lny6IOQFrM6B76Hx38IPf8fIMCBWQmb6COirZB8pQL5Nhpn+rsK5DGPqkATaiiPuHE90K+tsLc89PD8QqE+AvMZPUmDiYNC/ xlndr27/ 2kfroTStkSngfTogGTj/BMXM2jTpbnnfgmUoWOUDnGCanP5APSpnLRziHA5Mnf7td4a8g2Z8Df8t3vzqeNI7W6pDnxt5SrCfowlWreldWGLj9u03/vk6K7SAAWnlZ4bXHEl1JrVEpk0MGES0HH7GjGBBGatiSvbldJ7cwgJ3Rkq+sCkrk2Qa/J7w+NGO9F6hD0P6r39wVFwePQvCBV+MjxS7+PALDXme48D/HZKOrqUWzDJ4oQVwQMLM555iHyWweQmSL+kXk3wEranKX8xpBKvCt6M+iwVfb410xJVN9BU94tp8= 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: List-Subscribe: List-Unsubscribe: On Fri, 26 Jan 2024 08:22:40 -0500 Chunsheng Luo wrote: > set_mempolicy_home_node should be used after setting the memory > policy. If the home_node isn't in the nodes of policy, we should > return failure to avoid misunderstanding. Thanks. Under what circumstances does userspace trigger this issue?