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66a4e9e11e
Move memory policy interpretation out of alloc_buddy_hugetlb_folio_with_mpol() and into alloc_hugetlb_folio() to separate reading and interpretation of memory policy from actual allocation. This will later allow memory policy to be interpreted outside of the process of allocating a hugetlb folio entirely. This opens doors for other callers of the HugeTLB folio allocation function, such as guest_memfd, where memory may not always be mapped and hence may not have an associated vma. Introduce struct mempolicy_interpreted to hold all the components of an interpreted memory policy. Rename alloc_buddy_hugetlb_folio_with_mpol() to alloc_buddy_hugetlb_folio() since the function no longer interprets memory policy. No functional change intended. Link: https://lore.kernel.org/20260702-hugetlb-open-up-v4-2-d53cefcccf34@google.com Signed-off-by: Ackerley Tng <ackerleytng@google.com> Reviewed-by: James Houghton <jthoughton@google.com> Acked-by: Oscar Salvador <osalvador@suse.de> Cc: Alistair Popple <apopple@nvidia.com> Cc: Byungchul Park <byungchul@sk.com> Cc: David Hildenbrand <david@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com> Cc: Frank van der Linden <fvdl@google.com> Cc: Gregory Price <gourry@gourry.net> Cc: "Huang, Ying" <ying.huang@linux.alibaba.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Jiaqi Yan <jiaqiyan@google.com> Cc: Joshua Hahn <joshua.hahnjy@gmail.com> Cc: Matthew Brost <matthew.brost@intel.com> Cc: Michael Roth <michael.roth@amd.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Muchun Song <muchun.song@linux.dev> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Pasha Tatashin <pasha.tatashin@soleen.com> Cc: Peter Xu <peterx@redhat.com> Cc: Pratyush Yadav <pratyush@kernel.org> Cc: Qi Zheng <qi.zheng@linux.dev> Cc: Rakie Kim <rakie.kim@sk.com> Cc: Roman Gushchin <roman.gushchin@linux.dev> Cc: Sean Christopherson <seanjc@google.com> Cc: Shakeel Butt <shakeel.butt@linux.dev> Cc: Shivank Garg <shivankg@amd.com> Cc: Vishal Annapurve <vannapurve@google.com> Cc: Yan Zhao <yan.y.zhao@intel.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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