mirror of
https://github.com/torvalds/linux.git
synced 2025-12-07 20:06:24 +00:00
65edfda6f3
Add device-private THP support to reverse mapping infrastructure, enabling proper handling during migration and walk operations. The key changes are: - add_migration_pmd()/remove_migration_pmd(): Handle device-private entries during folio migration and splitting - page_vma_mapped_walk(): Recognize device-private THP entries during VMA traversal operations This change supports folio splitting and migration operations on device-private entries. [balbirs@nvidia.com: fix override of entry in remove_migration_pmd] Link: https://lkml.kernel.org/r/20251114012153.2634497-2-balbirs@nvidia.com [balbirs@nvidia.com: follow pattern used in remove_migration_pte()] Link: https://lkml.kernel.org/r/20251115002835.3515194-1-balbirs@nvidia.com Link: https://lkml.kernel.org/r/20251001065707.920170-5-balbirs@nvidia.com Signed-off-by: Balbir Singh <balbirs@nvidia.com> Reviewed-by: SeongJae Park <sj@kernel.org> Acked-by: Zi Yan <ziy@nvidia.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: David Hildenbrand <david@redhat.com> Cc: Joshua Hahn <joshua.hahnjy@gmail.com> Cc: Rakie Kim <rakie.kim@sk.com> Cc: Byungchul Park <byungchul@sk.com> Cc: Gregory Price <gourry@gourry.net> Cc: Ying Huang <ying.huang@linux.alibaba.com> Cc: Alistair Popple <apopple@nvidia.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com> Cc: Nico Pache <npache@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Dev Jain <dev.jain@arm.com> Cc: Barry Song <baohua@kernel.org> Cc: Lyude Paul <lyude@redhat.com> Cc: Danilo Krummrich <dakr@kernel.org> Cc: David Airlie <airlied@gmail.com> Cc: Simona Vetter <simona@ffwll.ch> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Mika Penttilä <mpenttil@redhat.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Francois Dugast <francois.dugast@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.