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[58.152.22.92]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82a07343719sm4525615b3a.38.2026.03.12.20.51.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Mar 2026 20:51:33 -0700 (PDT) Message-ID: Date: Fri, 13 Mar 2026 11:51:27 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/mempolicy: add sysfs interface to override NUMA node bandwidth To: Gregory Price Cc: akpm@linux-foundation.org, david@kernel.org, dan.j.williams@intel.com, ying.huang@linux.alibaba.com, linux-mm@kvack.org, joshua.hahnjy@gmail.com, linux-kernel@vger.kernel.org, Jonathan.Cameron@huawei.com, linux-cxl@vger.kernel.org, dave.jiang@intel.com References: <20260312091207.2016518-1-seven.yi.lee@gmail.com> Content-Language: en-US From: Yee Li In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Gregory, > If userland is setting the raw bandwidth stat, why can't they do a tiny > bit of math to figure out the preferred weighting and just write the > weights? We're not setting the raw bandwidth stat directly, but overriding the top-level bandwidth to observe the final effect. > Should be posted as [RFC] then, I don't think we want this upstream. Thanks for the suggestion.