Subject userfaultfd: working set tracking for VM guest memory
Author kirill@shutemov.name
Date 2026-06-29 12:07:32 +0000 UTC
Version
Cc aarcange@redhat.com akpm@linux-foundation.org corbet@lwn.net david@kernel.org jthoughton@google.com kas@kernel.org kernel-team@meta.com kirill@shutemov.name kvm@vger.kernel.org liam.howlett@oracle.com linux-doc@vger.kernel.org linux-kernel@vger.kernel.org linux-kselftest@vger.kernel.org linux-mm@kvack.org ljs@kernel.org pbonzini@redhat.com peterx@redhat.com rppt@kernel.org seanjc@google.com sj@kernel.org skhan@linuxfoundation.org surenb@google.com usama.arif@linux.dev vbabka@kernel.org ziy@nvidia.com
Patches (15)
Name Content [All]
[PATCH v7 01/15] mm: decouple protnone helpers from CONFIG_NUMA_BALANCING [Body]
[PATCH v7 02/15] mm: rename uffd-wp PTE bit macros to uffd [Body]
[PATCH v7 03/15] mm: rename uffd-wp PTE accessors to uffd [Body]
[PATCH v7 04/15] userfaultfd: test uffd VMA flags through the vma_flags_t API [Body]
[PATCH v7 05/15] mm: add VM_UFFD_RWP VMA flag [Body]
[PATCH v7 06/15] mm: add MM_CP_UFFD_RWP change_protection() flag [Body]
[PATCH v7 07/15] mm: preserve RWP marker across PTE rewrites [Body]
[PATCH v7 08/15] mm: handle VM_UFFD_RWP in khugepaged, rmap, and GUP [Body]
[PATCH v7 09/15] userfaultfd: add UFFDIO_REGISTER_MODE_RWP and UFFDIO_RWPROTECT plumbing [Body]
[PATCH v7 10/15] mm/userfaultfd: add RWP fault delivery and expose UFFDIO_REGISTER_MODE_RWP [Body]
[PATCH v7 11/15] mm/pagemap: add PAGE_IS_ACCESSED for RWP tracking [Body]
[PATCH v7 12/15] userfaultfd: add UFFD_FEATURE_RWP_ASYNC for async fault resolution [Body]
[PATCH v7 13/15] userfaultfd: add UFFDIO_SET_MODE for runtime sync/async toggle [Body]
[PATCH v7 14/15] selftests/mm: add userfaultfd RWP tests [Body]
[PATCH v7 15/15] Documentation/userfaultfd: document RWP working set tracking [Body]
Session 2026-06-29
ID (for dev) 8ca9120e-0a3b-4813-8af4-c78c2ffbd4ad
Status finished
Triaged OK [Log] [Trajectory]
Execution Log [Link]
Test Base Patched Verdict
[KASAN] Build Base dc59e4fea9d83f03bad6bddf3fa2e52491777482 [Config] passed [Log]
[KASAN] Boot test: Base dc59e4fea9d83f03bad6bddf3fa2e52491777482 [Config] passed [Log]
[KASAN] Build Patched dc59e4fea9d83f03bad6bddf3fa2e52491777482 [Config] [patched] passed [Log]
[KASAN] Boot test: Patched dc59e4fea9d83f03bad6bddf3fa2e52491777482 [Config] [patched] passed [Log]
[KASAN] Fuzz dc59e4fea9d83f03bad6bddf3fa2e52491777482 [Config] dc59e4fea9d83f03bad6bddf3fa2e52491777482 [Config] [patched] passed [Log] [Artifacts]