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[142.162.112.119]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4ffa8e35dbfsm129011631cf.19.2026.01.12.15.54.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jan 2026 15:54:15 -0800 (PST) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1vfRji-00000003fUm-0uFg; Mon, 12 Jan 2026 19:54:14 -0400 Date: Mon, 12 Jan 2026 19:54:14 -0400 From: Jason Gunthorpe To: Alistair Popple Cc: Matthew Brost , Zi Yan , Matthew Wilcox , Balbir Singh , Francois Dugast , intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Madhavan Srinivasan , Nicholas Piggin , Michael Ellerman , "Christophe Leroy (CS GROUP)" , Felix Kuehling , Alex Deucher , Christian =?utf-8?B?S8O2bmln?= , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Lyude Paul , Danilo Krummrich , Bjorn Helgaas , Logan Gunthorpe , David Hildenbrand , Oscar Salvador , Andrew Morton , Leon Romanovsky , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org, nouveau@lists.freedesktop.org, linux-pci@vger.kernel.org, linux-mm@kvack.org, linux-cxl@vger.kernel.org Subject: Re: [PATCH v4 1/7] mm/zone_device: Add order argument to folio_free callback Message-ID: <20260112235414.GO745888@ziepe.ca> References: <20260111205820.830410-1-francois.dugast@intel.com> <20260111205820.830410-2-francois.dugast@intel.com> <874d29da-2008-47e6-9c27-6c00abbf404a@nvidia.com> <0D532F80-6C4D-4800-9473-485B828B55EC@nvidia.com> <20260112134510.GC745888@ziepe.ca> <45A4E73B-F6C2-44B7-8C81-13E24ED12127@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Stat-Signature: xzdqrhghdapxc7nu7qw77j3o9z96uw4h X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: AC21540005 X-Rspam-User: X-HE-Tag: 1768262056-35370 X-HE-Meta: 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 OOM/0a32 7Jgws6RJc0OLQcZUZBJXjhqsEqBvjZQyYQ+e1QyEgOplKjLoZmZ2jKP2gfuSQ8XpR+AXG9WZmFP55/3W8QbQnMvghl2DRkkfbv5aUg6izLXmNV9BuxofUTlFT3WbXONbPXMFrluTFd5tqrvEey7+gznqjElyeLdW9LDlkYdI9F7ZtsypDLyr2IrUXHOJ76qgq8kzh4a3og3A6uudBnATzTxyLdDQN0y0bpHdqaJWrOgKX9agyfklRiRLCVMr3T1fQGUKj1BUwWXot2B4sOFJ1pFhnualzkJHwvaEIpsGpiEN8GVFpHGMwQmIpAC+njxNxf8ffgY8+opcdh+k= 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 Tue, Jan 13, 2026 at 10:44:27AM +1100, Alistair Popple wrote: > Also drivers may have different strategies than just resetting everything back > to small pages. For example the may choose to only ever allocate large folios > making the whole clearing/resetting of folio fields superfluous. +1 Jason