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[109.81.93.105]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48fce38328esm22796985e9.13.2026.05.12.23.47.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 May 2026 23:47:16 -0700 (PDT) Date: Wed, 13 May 2026 08:47:15 +0200 From: Michal Hocko To: "Liam R. Howlett" Cc: "David Hildenbrand (Arm)" , Minchan Kim , Suren Baghdasaryan , akpm@linux-foundation.org, hca@linux.ibm.com, linux-s390@vger.kernel.org, brauner@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, timmurray@google.com, "Liam R. Howlett" Subject: Re: [PATCH v1 2/3] mm: process_mrelease: skip LRU movement for exclusive file folios Message-ID: References: <7f98f461-62a7-455d-a7a8-cb8928465946@kernel.org> <4a612d63-2838-40f5-ab67-79bf35dd3a56@kernel.org> <7g5g57jbll5joujbwjb4osqhdwqd4yzc54wmoi7ftx4a4chuax@xtxyljtqaodp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7g5g57jbll5joujbwjb4osqhdwqd4yzc54wmoi7ftx4a4chuax@xtxyljtqaodp> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 488DE140002 X-Stat-Signature: mj7wis53j781kdph4wydx1xo8j73hiyn X-Rspam-User: X-HE-Tag: 1778654838-360137 X-HE-Meta: U2FsdGVkX1/UVZjd/b8QNz7w9UQWKYhEvdhMdSPA6KY+MAPahmtP/g8xRVbrSsUULJjkdTbwbRLtqR5yIdIb1oLfyLa9iK9nIy40rERy9Zi4Ilqd56wcGx3bCdNwmQGdHdEOr8u3g+eTcQM26jM3cdtY9/yYbgTmGCQSm4uvFUqTi0WtEMWu2XxKWwHRQt+HL/mjQsjX9Guv4xMKx5ABFlLWdXEIskx/61u36AVONCrTbasnQf9I3zL5tEwzEpVUTs8FCo43kbtkJ0N4JzmFupsL4gVolI6co1pALVvI2SqVLm+b+2Ekf+Lt81oTsOTFz7p9HbgNkHXELi4z0qEtAqi0TS6f07k4MviRx7WZIitWqCryo++yWsEZKydSzuO/GxHyhLMByaKOKZali5DzTKmagA0ZF9KKkCQ0YENONYtEli1eJqWNELrBYPhNyw6ZZgJfGajaXatg4oHxqP0gyr6jVbw/5J0QW/XVwjk+FQ7bNMwvCZgTlz7eyaIz5URuuWEre1T5woyaRlHRwb4+ErkYxNVm5KqmPVUuDh2/4iyuXVdKsbnZmnlMYHVgH1dZkWVJZTrOqI6Sf+Api8svKmN3wVHjuK2F5luMudJR8AX03yq8eCkNeqeyE9kU+ZRIXuNg1sqTfiN6Nic3AMP1+ICSv+Z2rG9ldCdzk9X81huqOkTlrsJiEAOIHcrjMTDZAzgR98+e2yVc97+CcIUKUGRkq9ZF77kF+2cl/UY7RKU7b3WAmzw4hNtxYf0Sm7NCVWACPTGilIyzBmNUKq09cv/BcSBj2TSlNom5OIqfoTm93O/HhxeZrgN5zlGuSA685vVklGrX5czXSV0c2wmS3FOwd1WEcjpr1/diGeJMDaKICTiVz0iUQd3+LKoP+S/cyr7l0ibDXlH5IUtfedaTN/3ELcSN6C6LY+Z5r5lxX7N2WXo7HJpwDlrYKo0+qObg3/H7cvTbHo+jmzdF0EQ YGtDk6EP lA+XY1tXuiBMXZNBN5vW2DR8r1dxDNf3Jp+AbFFduQNgeamYG4Qt0cYFTNHrUSR5sdqpSXHSuH58qRr+gdxZQASvpStIIDqkL2Ph/dgy2sPqGNipC8GWapp5VVxkgKWR+g4Lv07I6RQa2BhYsaVxBQGeGSWCM1MgpUQTnwD2X+UyghZh11fnCG/oNIQT6K16At7xZSBg9AMxE8Q+ujnfRyG2t2w6y74FdQaWuDwLH1mZNVrATKEFL71NzLEl7+JjY6QWlGHZ7TZFhsjEtCasEBJ3+ntx2Y6IAlrA0YEoQNpr5TbwGFro7d+T8rO184nqCSb+dyg6EMKdXkcoAzDeOJ58usYys2JmWXeAGQ4Eg5G8CElo8/joyJYPpLqR02a2vEbnheyo2NEi4fJwOqKOHo+oNvA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri 08-05-26 22:57:31, Liam R. Howlett wrote: > We can safely drop the flag now if you want to, because everything has > to deal with an empty vma tree anyways - a race can occur between a call > to unmap everything and the task seg faulting. Let's just drop it if it doesn't sever any real need anymore. -- Michal Hocko SUSE Labs