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From: Muchun Song In-Reply-To: <65187d0371e692e52f14ed7b80cf95e8f15d7a7d.1768389889.git.zhengqi.arch@bytedance.com> Date: Fri, 16 Jan 2026 17:14:10 +0800 Cc: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com, roman.gushchin@linux.dev, shakeel.butt@linux.dev, david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com, harry.yoo@oracle.com, yosry.ahmed@linux.dev, imran.f.khan@oracle.com, kamalesh.babulal@oracle.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chenridong@huaweicloud.com, mkoutny@suse.com, akpm@linux-foundation.org, hamzamahfooz@linux.microsoft.com, apais@linux.microsoft.com, lance.yang@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Qi Zheng , Chen Ridong Content-Transfer-Encoding: 7bit Message-Id: <897EC629-8E32-436A-B829-AB7D1A291C61@linux.dev> References: <65187d0371e692e52f14ed7b80cf95e8f15d7a7d.1768389889.git.zhengqi.arch@bytedance.com> To: Qi Zheng X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Stat-Signature: i8g5hs3r316wr3de4n98ztpozkdat1w6 X-Rspamd-Queue-Id: 92AC8100006 X-Rspamd-Server: rspam04 X-HE-Tag: 1768554872-553812 X-HE-Meta: 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 nn8eMepk rTOd4Ebesiyz2YpP/auSu5M5rPVGPTozYiPX4ZSLR/dCH0rVTkT0TPelgqNpeFGx/fMzFODH/ZiDMFDm7YcY5TD+IAw1Xynxa3bq9aZX9OuV5kNzH05UL83uDGBTsKKHJs66q+p174IgcM//U37UV89SOyxZz3aovzwRwSbIxDv/Opnh881P6TEKCO6xXIlrstFkdzlG5yk8rmYv1LVzxLZPlxgB3ZPD836rAS6mFYrnStqYyrqwOxLp0eMTclOamAOMWzZ9RibGUSnPRYjRbEcyLFJBBw0iyB+8QsQCU5SYBN/vf5IGBKFeLO9A/i5JxQchtcNxjJFHc8z45QBjIQumsrZVn98Np5WbpwSHSMVxBbmZHBHrv80Sd+TF34jWRhzUHzKWCW/bYMQqJt5XyZMypiB00QIni1GBfTRUcIKtQ3JIOVnn0KvEmztKOQKMlnPcA X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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 Jan 14, 2026, at 19:26, Qi Zheng wrote: > > From: Qi Zheng > > Once we refactor move_folios_to_lru(), its callers will no longer have to > hold the lruvec lock; For shrink_inactive_list(), shrink_active_list() and > evict_folios(), IRQ disabling is only needed for __count_vm_events() and > __mod_node_page_state(). > > To avoid using local_irq_disable() on the PREEMPT_RT kernel, let's make > all callers of move_folios_to_lru() use IRQ-safed count_vm_events() and > mod_node_page_state(). > > Signed-off-by: Qi Zheng > Acked-by: Johannes Weiner > Acked-by: Shakeel Butt > Reviewed-by: Chen Ridong Acked-by: Muchun Song