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[109.81.94.245]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4bb4e2776casm105702275e9.14.2026.11.12.06.12.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Nov 2026 06:12:15 -0800 (PST) Date: Thu, 12 Nov 2026 15:12:15 +0100 From: Michal Hocko To: "Lorenzo Stoakes (ARM)" Cc: David Hildenbrand , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , David Rientjes , Shakeel Butt , Andrew Morton , Jann Horn , Pedro Falcato , "Matthew Wilcox (Oracle)" , Jan Kara , Nhat Pham , Johannes Weiner , Zi Yan , Matthew Brost , Joshua Hahn , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Usama Arif , Kairui Song , Balbir Singh , =?iso-8859-1?B?Suly9G1l?= Glisse , Kiryl Shutsemau , Yu-cheng Yu , Dave Hansen , Dennis Zhou , Tejun Heo , Christoph Lameter , Peng Fan , Josef Bacik , Chris Mason , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, "Borislav Petkov (AMD)" , Mark Brown , "Dennis Zhou (Facebook)" , Rick Edgecombe , stable@vger.kernel.org Subject: Re: [PATCH 01/13] mm/mmap: free gathered pages before MMF_OOM_SKIP Message-ID: References: <20261111-mason-migrate-et-al-fixes-v1-0-3d2454362e8d@kernel.org> <20261111-mason-migrate-et-al-fixes-v1-1-3d2454362e8d@kernel.org> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 6576618000C X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Stat-Signature: 6uts7stsjnmrxtohxogbgdsikr4euk5f X-Rspam-User: X-HE-Tag: 1794493187-967967 X-HE-Meta: U2FsdGVkX18lME4ZFP2z9uxEsWKwfLt/3OL73xaLWm0VSTsONyreAHD2iAHcrddJJC99jvbCWd+WUkoM8lksyt6s3/L+7qw4iK9mJRJGJTUO/jop3YvpjDOaZ7OivOyCXQd/rElyz89avUMOvdpuPtoH/+GuxPFRaIkJcFQletiRLkKjRBXdG06TaNUwI3bUuZyoH3Mm7QP9lfnhBpVa9PEuqwOUVqCeNuvHHwrHPIAgTD8H0yynhx4oJCriGVBPAifbp8JA0yuNbI/UzEFabyiHNyH0ni4PQr76KMjhb6GEWwz0QrQWLAkugqUuEJH7BH6pahfDxvIvXmaIaYCfmDiCJNA7PqrcrOJHCUOufJ1TMph4AyKscse1TnPYHVIRe3hHYeaTWRw2Tn9ofPbob4blVhSgmAw6iXfT6C5086oi15N4I+bWKda1lDtCoUU/e004rxG+GM3emWCyWtoFDsklTNMbS2n+gTsRpCNtgtI4iRHA7EsmBUtzKzIrOGU7/Brc6wxdSlgvFNQduqTqTzxL+qcBzIZDhGs1XBZdA44hctRhE2uQP+4bvdcGhRstFxnJz1rvYFL4A8uvORtMPRbfPfS1k6vLqI7QvlxE4BKL3rXy8Lec08wj4O2lh0I7yFxYMUPDOr86NQsr0B1ltsSsj+4N68coAzD1fpi1YcVWQcHEocf65wBiY8Wq6zDBiFvMG1ccpAX9yrwtCN4DoHqrGEk9pQKqI4t7MVaTpyGHyK2pE0rXeVv3J5vRjibrUXTI+igB02OPFJp1Jb5z5KN6Tdeb1m9jmZgdCVU5ZR4sXomHT6Ls905CjCPSK75gxJ1lq9AWnvkd44zi0iEHY2pc2q6tGpxwuJAB3gffgNoGBJ5xjoaNgVMRHA8M6WxtVU82DNqieIyAWMcdPrKJW7PZblidmNKnfhpKIE4oXVUTdy7cvWB7tXooDbOIIaBgXaLIumje27+P0UWZMSA OPqOa6VO 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Thu 12-11-26 13:48:53, Michal Hocko wrote: > > This only matters for the OOM victim, hence reinstating MMF_OOM_VICTIM, which > > made the patch _way_ smaller than the one proposed :) > > Should we simply do that flushing unconditionally before setting MMF_OOM_VICTIM > then? Sorry, I was caught in calls and didn't get much time to think about this. I have only now found some time to look into that and to do the above we would need to make tlb_batch_list_free visible and conditional. Which is a bit of undertaking, not anything major but still kind of ugly. So your solution seems better in the end. Please clarify the changelog wording to be really about this and with that Acked-by: Michal Hocko