kernel/linux.git/Documentation/mm/memory-model.rst, branch linux-7.1.y

arch, mm: consolidate initialization of SPARSE memory model

2026-01-27T04:02:18+00:00

Every architecture calls sparse_init() during setup_arch() although the data structures created by sparse_init() are not used until the initialization of the core MM. Beside the code duplication, calling sparse_init() from architecture specific code causes ordering differences of vmemmap and HVO initialization on different architectures. Move the call to sparse_init() from architecture specific code to free_area_init() to ensure that vmemmap and HVO initialization order is always the same. Link: https://lkml.kernel.org/r/20260111082105.290734-25-rppt@kernel.org Signed-off-by: Mike Rapoport (Microsoft) Cc: Alexander Gordeev Cc: Alex Shi Cc: Andreas Larsson Cc: "Borislav Petkov (AMD)" Cc: Catalin Marinas Cc: David Hildenbrand Cc: David S. Miller Cc: Dinh Nguyen Cc: Geert Uytterhoeven Cc: Guo Ren Cc: Heiko Carstens Cc: Helge Deller Cc: Huacai Chen Cc: Ingo Molnar Cc: Johannes Berg Cc: John Paul Adrian Glaubitz Cc: Jonathan Corbet Cc: Klara Modin Cc: Liam Howlett Cc: Lorenzo Stoakes Cc: Magnus Lindholm Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Hocko Cc: Michal Simek Cc: Muchun Song Cc: Oscar Salvador Cc: Palmer Dabbelt Cc: Pratyush Yadav Cc: Richard Weinberger Cc: "Ritesh Harjani (IBM)" Cc: Russell King Cc: Stafford Horne Cc: Suren Baghdasaryan Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Vasily Gorbik Cc: Vineet Gupta Cc: Vlastimil Babka Cc: Will Deacon Signed-off-by: Andrew Morton

mm/zone_device: rename page_free callback to folio_free

2025-11-24T23:08:47+00:00

Change page_free to folio_free to make the folio support for zone device-private more consistent. The PCI P2PDMA callback has also been updated and changed to folio_free() as a result. For drivers that do not support folios (yet), the folio is converted back into page via &folio->page and the page is used as is, in the current callback implementation. Link: https://lkml.kernel.org/r/20251001065707.920170-3-balbirs@nvidia.com Signed-off-by: Balbir Singh Cc: David Hildenbrand Cc: Zi Yan Cc: Joshua Hahn Cc: Rakie Kim Cc: Byungchul Park Cc: Gregory Price Cc: Ying Huang Cc: Alistair Popple Cc: Oscar Salvador Cc: Lorenzo Stoakes Cc: Baolin Wang Cc: "Liam R. Howlett" Cc: Nico Pache Cc: Ryan Roberts Cc: Dev Jain Cc: Barry Song Cc: Lyude Paul Cc: Danilo Krummrich Cc: David Airlie Cc: Simona Vetter Cc: Ralph Campbell Cc: Mika Penttilä Cc: Matthew Brost Cc: Francois Dugast Cc: Madhavan Srinivasan Cc: Christophe Leroy Cc: Felix Kuehling Cc: Alex Deucher Cc: "Christian König" Signed-off-by: Andrew Morton

docs/mm: remove useless markup

2023-02-02T17:18:05+00:00

It is enough to use a file name to cross-reference another rst document. Jon says: The right things will happen in the HTML output, readers of the plain-text will know immediately where to go, and we don't have to add the label clutter. Drop reference markup and unnecessary labels and use plain file names. Signed-off-by: Mike Rapoport (IBM) Link: https://lore.kernel.org/r/20230201094156.991542-3-rppt@kernel.org Signed-off-by: Jonathan Corbet

docs: rename Documentation/vm to Documentation/mm

2022-06-27T19:52:53+00:00

so it will be consistent with code mm directory and with Documentation/admin-guide/mm and won't be confused with virtual machines. Signed-off-by: Mike Rapoport Suggested-by: Matthew Wilcox Tested-by: Ira Weiny Acked-by: Jonathan Corbet Acked-by: Wu XiangCheng