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([2001:1a48:8:903:1ed6:4f73:ce38:f9d4]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-44a8ef52854sm11695231f8f.12.2026.05.02.04.53.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 02 May 2026 04:53:21 -0700 (PDT) Message-ID: <83c146d2-d52f-41f3-975d-ad607a6f741c@suse.com> Date: Sat, 2 May 2026 13:53:20 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [LSF/MM/BPF TOPIC] Improving MGLRU Content-Language: en-US To: Hillf Danton , Matthew Wilcox Cc: Kairui Song , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260502085645.262-1-hdanton@sina.com> From: Vlastimil Babka In-Reply-To: <20260502085645.262-1-hdanton@sina.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Queue-Id: 84874140003 X-Rspamd-Server: rspam06 X-Stat-Signature: 31osorwbbeud4rx46qyw87psxjunj5mc X-HE-Tag: 1777722803-169485 X-HE-Meta: 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 z3avCrIy U88z08RRpOA1WEoVaaSyaClhCG+b6JMeAoMIBFS6/wSCXxjo+So01Q6i1Q5r0FpyPl2fGocX9r4C04mfrVF5vdXG5Vq2rsHlnsdfTHjeSPk3BLAXvWid6Xc6rHkWsGMy0/U6EzoaSNa/T4bitwQXVjrtFpvf3paRmi8eG7vD5J1XeyKJQ0TTEXCua8idz6SOCaVJSarePhUbjJQb7U1ITi2CR1vy17kz8BRlYuMhGEyxqqRKQaktD9XjyxVlwJXeeUDsqmjbUtuYhHzc++qOMpfFra5inS+cE5JJ80sw5Ed2jQUGij1tZ+ms6Y8/aRq7YSBuZmX4DRnJoOLRJOyjKUiRrHPL1RRgmFy0s Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 5/2/26 10:56, Hillf Danton wrote: > On Thu, 26 Feb 2026 15:54:22 +0000 Matthew Wilcox wrote: >> On Fri, Feb 20, 2026 at 01:25:33AM +0800, Kairui Song wrote: >> > MGLRU has been introduced in the mainline for years, but we still have two LRUs >> > today. There are many reasons MGLRU is still not the only LRU implementation in >> > the kernel. >> >> To my mind, the biggest problem with MGLRU is that Google dumped it on us >> and ran away. Commit 44958000bada claimed that it was now maintained and >> added three people as maintainers. In the six months since that commit, >> none of those three people have any commits in mm/! This is a shameful >> state of affairs. >> >> I say rip it out. >> > I suspect you are kidding again. Go and cut it off then we know how sharp > you are. > I can't wait for the day when you finally decide to do that with your e-mail "contributions".