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Wed, 19 Aug 2026 03:02:56 +0000 X-Migadu-Flow: FLOW_OUT From: Lance Yang To: baohua@kernel.org Cc: akpm@linux-foundation.org, linux-mm@kvack.org, baolin.wang@linux.alibaba.com, david@kernel.org, dev.jain@arm.com, lance.yang@linux.dev, liam@infradead.org, linux-kernel@vger.kernel.org, ljs@kernel.org, mhocko@suse.com, npache@redhat.com, rppt@kernel.org, ryan.roberts@arm.com, surenb@google.com, vbabka@kernel.org, ziy@nvidia.com, hughd@google.com, ackerleytng@google.com, usama.arif@linux.dev, joannelkoong@gmail.com, hannes@cmpxchg.org Subject: Re: [RFC PATCH v3 0/4] mm: enable lru cache for smaller large folios Date: Wed, 19 Aug 2026 11:02:49 +0800 Message-Id: <20260819030249.96570-1-lance.yang@linux.dev> X-Mailer: git-send-email 2.39.3 (Apple Git-146) In-Reply-To: <20260818225904.55236-1-baohua@kernel.org> References: <20260818225904.55236-1-baohua@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: kb974xk3qt117z4aijbkdumosahmpuor X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 48246140006 X-HE-Tag: 1787108578-78338 X-HE-Meta: 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 e84MdkmO WAPBBJLGfWliaKSm4ptyjEsnYjwTf+BCxpWEmzr7jrM9r6+8RmgLcjzfxPzsaFOv8GH4+GCd+lcD5Gh+wFQUhW7B92POCeFyQSjezsyFSQE7Vl1RZ3F9MZJSHs6a6x0cIWQqKDBGALXe4qRlh21HYWRGWrOkY5zc1xsnxRE1nhenD6IjCg9C4mcy371foJ1OdR6507q23cdNj9ynVWzFubukcGNfdeoJIGQYEJaFKfXvypO3tf3dT/YcbHmuQf9XYLPbdkN+DV0qJ8xe06VpDw+4Bp5jMnfGoaeDD Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Aug 19, 2026 at 06:59:00AM +0800, Barry Song (Xiaomi) wrote: [...] > >-RFC v3: > * Rather than hard-coding `< COSTLY_ORDER` to enable the lru_cache, > allow the lru_cache for larger orders as long as the folio contains > fewer than `FOLIO_BATCH_LRU` pages. Also limit the total number of Tiny typo ... should FOLIO_BATCH_LRU be FOLIO_BATCH_SIZE here?