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[109.81.83.158]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-42caeb449aesm102347055e9.25.2024.09.10.01.20.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Sep 2024 01:20:48 -0700 (PDT) Date: Tue, 10 Sep 2024 10:20:47 +0200 From: Michal Hocko To: Andrew Morton Cc: Hailong Liu , Barry Song <21cnbao@gmail.com>, Lokesh Gidra , Suren Baghdasaryan , Nicolas Geoffray , gaoxu , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Shaohua Li , yipengxiang , fengbaopeng , Kalesh Singh Subject: Re: [PATCH v2] mm: add lazyfree folio to lru tail Message-ID: References: <20240827021351.iq6i7zkwm32xili3@oppo.com> <20240827022911.bcje3ofucegg6vjl@oppo.com> <20240909152215.31e85028c4d09681f09e7509@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240909152215.31e85028c4d09681f09e7509@linux-foundation.org> X-Rspam-User: X-Stat-Signature: c9pmoycfkdnhozcdzkgrnf4o7etfehkp X-Rspamd-Queue-Id: 3DB374000A X-Rspamd-Server: rspam11 X-HE-Tag: 1725956450-714181 X-HE-Meta: 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 9tQ3PVDH dwVsNPfLYSi35hi0GmZk83gUK0UW/TD80zceGfB3AyHk/RR3/OgaWiwlLF0BDFZZsi5O5ayDNZ5LRyVtSeEbx9rFoA95bxY6UwUGiBZHJE6AcVAmZnUoFVqS0Wo8gV+zEbBxBggUgZPOu/r0f1p22DOUNyAvVafXUfLnbZo9U1fH6r+aTPcoGgP+BlXIfVlBz3A6bRMdcYmZX7cJI3yp1nwASmxMzVU+vhq/rZ6xN3r2aRgZzX/FtjWgfXo5n5mvkoX5bM8ZASk7ud1QNdP1M50rXIkAskVWoS5Z1gVyRUdAEfEtS2ZP/zmVRvjRqpUC7M+DGV1h5Iz7RIuzzHL17mT8o2GaPgUIsGgy5 X-Bogosity: Ham, tests=bogofilter, spamicity=0.006084, 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 Mon 09-09-24 15:22:15, Andrew Morton wrote: [...] > I'm not seeing much clarity on whether we should merge this change. I > think I'll drop this version - let's please revisit after -rc1. I think the biggest thing to focus on is the change of the behavior and whether LIFO aging strategy for MADV_FREE pages is really desirable. It is a noticeable LRU antipattern. -- Michal Hocko SUSE Labs