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Thu, 30 Jul 2026 00:22:04 -0700 (PDT) From: Lian Wang To: Barry Song Cc: Lian Wang , akpm@linux-foundation.org, linux-mm@kvack.org, hannes@cmpxchg.org, david@kernel.org, mhocko@kernel.org, qi.zheng@linux.dev, shakeel.butt@linux.dev, ljs@kernel.org, kasong@tencent.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, linux-kernel@vger.kernel.org, lyugaofei@xiaomi.com, stevensd@chromium.org Subject: Re: [RFC PATCH v2 1/5] mm: mglru: avoid scanning empty generations in scan_folios() Date: Thu, 30 Jul 2026 15:21:57 +0800 Message-ID: <20260730072157.17263-1-lianux.mm@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Barry, That makes sense. I agree that this rare corner case does not justify the added complexity for now, so please feel free to leave it out of v3. I'll test v3, with a particular focus on the generation-imbalance aging behavior in 4/5, and report back with the results. Thanks, Lian