Changes in Makefile

67f8bc848ee31831336bd478e57d2f993551902e - Merge drm/drm-fixes into drm-misc-fixes

Tue, 01 Sep 2026 09:38:51 +0200

Merge drm/drm-fixes into drm-misc-fixesLet's start the 7.3 drm-misc-fixes cycle.Signed-off-by: Maxime Ripard List of files: /linux/tools/testing/selftests/Makefile

be150d35864ccd8d1005a12953da145013219d35 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 31 Aug 2026 14:43:36 +0200

Merge drm/drm-fixes into drm-misc-fixesUpdating drm-misc-fixes to the state of v7.2.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/testing/selftests/Makefile

b2128290c29902315e632ea59e0504d6bc9e9b42 - Merge remote-tracking branch 'drm/drm-next' into msm-next-backmerge

Sat, 18 Jul 2026 17:06:55 +0200

Merge remote-tracking branch 'drm/drm-next' into msm-next-backmergeBackmerge of drm-next, mainly to pick up dt bindings docs updates toavoid conflicts.Signed-off-by: Rob Clark List of files: /linux/tools/testing/selftests/Makefile

18fbf5151d2c0bfe433c7428eef03cabf5fdb2fa - Merge tag 'mm-stable-2026-08-26-15-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Thu, 27 Aug 2026 18:17:06 +0200

Merge tag 'mm-stable-2026-08-26-15-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmPull more MM updates from Andrew Morton: - "mm/rmap: index MAP_PRIVATE file-backed folios by anonymous pgoff" (Lorenzo Stoakes) Index MAP_PRIVATE file-backed folios by their anonymous page offset to resolve confusion around reverse mapping for zeroed and CoW'd file-backed memory. Use this new VMA anonymous page offset tracking to eliminate index conflicts and lay the foundation for scalable CoW performance improvements. - "promote mapped executable folios after first usage for MGLRU" (Baolin Wang) Make MGLRU's protection of mapped executable file folios more reliable. Follow the classical LRU's logic, promoting mapped executable file folios after their first usage to give executable code a better chance to stay in memory and improve workload performance. - "mm: vmscan: fix node reclaim ignoring swappiness parameter" (Ridong Chen) Fix per-node proactive reclaim interface's ignoring the swappiness parameter when CONFIG_MEMCG is disabled by consolidating sc_swappiness() into a single function that checks proactive_swappiness regardless of kernel configuration. - "mm/vmscan: reduce lru_lock contention via vmstat-derived scan-balance cost" (Usama Arif) Reduce lru_lock contention in the reclaim path by deriving scan-balance costs from vmstat counters rather than lock-acquired producer updates. Read and decay these cost signals on the reclaim side under a dedicated per-lruvec lock, reducing total LRU lock wait time by over 60% without impacting scan throughput. - "zram: fix zram issues reported by sashiko" (Sergey Senozhatsky) Fix two low-risk zram bugs which Sashiko spotted in drive-by review. - "Honor XA_FLAGS_ACCOUNT in xas_split_alloc() and charge to folio's memcg" (Zi Yan) Fix xas_split_alloc() by enabling target folio memcg charging during splits and adding the missing __GFP_ACCOUNT flag for proper XArray node memory accounting. - "selftests/mm: use pattern matching in .gitignore" (Pratyush Mallick) Replace hardcoded binary names in selftests/mm/.gitignore with a generic pattern-matching rule to automatically ignore generated test files and avoid manual updates when adding new tests. - "mm/page_ext: remove pgdat_page_ext_init()" (Sang-Heon Jeon) Make the incompatibility between FLATMEM and NUMA explicit in mm/Kconfig and remove the unused pgdat_page_ext_init() function. - "zram: fix zstd error paths and add parameter validation" (Haoqin Huang) Clean up zram compression backends by removing redundant error cleanup, adding parameter and dictionary validation, auto-prefixing algorithm error logs, and resetting parameters prior to reinitialization. - "zram: fix stale scan bounds after reinitialization" (Longlong Xia) Prevent out-of-bounds slot accesses during concurrent zram resets by moving table scan bound calculations under dev_lock in writeback_store() and read_block_state(). - "add anon mTHP collapse test cases" (Baolin Wang) Extend selftests helper functions to support arbitrary page orders and add new test cases and options for mTHP collapse in khugepaged. - "selftests/mm: Handle unsupported and transient test conditions" (Muhammad Usama Anjum) Update MM selftests to report a SKIP status instead of a failure when required kernel or filesystem features are unsupported, while adding retry logic for transient page migration errors. - "mm/zswap: Fixes and improves the zswap shrink" (Hao Jia) Fix the missing zswap global shrinker when CONFIG_MEMCG is disabled and extend shrink_memcg() to support batch writeback for improved writeback efficiency. - "alloc_tag: introduce IOCTL-based filtering for MAP" (Suren Baghdasaryan) Introduce an IOCTL-based binary interface for memory allocation profiling that enables kernel-side filtering before per-CPU counter aggregation. This eliminates the text-parsing overhead of /proc/allocinfo and provides up to a 20x speedup by transferring only filtered allocation data to userspace. - "better block swap batching and a different take on swap_ops v5" (Christoph Hellwig) Refactor block swap I/O to use swap_iocb for batching instead of single-bio requests and rebase the swap_ops interface, achieving faster swap throughput during kernel builds. - "mm: kmemleak: reduce transient false positives by confirming leaks" (Catalin Marinas) Reduce false-positive kmemleak reports by combining two kmemleak enhancements that add a second confirmation scan and a configurable minimum unreferenced scan count module parameter. - "mm: kmemleak: default min_unref_scans to 2 for verbose kernels" (Breno Leitao) Auto-scanning kernels can generate false-positive memory leak reports on single scans, so this patch defaults min_unref_scans to 2 when CONFIG_DEBUG_KMEMLEAK_VERBOSE is enabled to require a second confirming scan. - "swap_ops updates" (Christoph Hellwig) Batching I/O for synchronous swap devices causes performance regressions and filesystem-based swap suffers from double-indirection overhead. This series resolves both issues by reintroducing per-folio writes for synchronous swap and allowing filesystems to directly export their own swap_ops. - "mm/khugepaged: several cleanups" (Nico Pache) khugepaged accumulated redundant state-checking patterns and outdated comments following mTHP integration. Introduce dedicated helpers for PTE validation and event counting while refreshing the internal documentation. - "maple_tree: lock checking and clean ups" (Liam Howlett) Syzbot reports incorrectly blame memory management exit paths for locking bugs, maple tree erase operations risk allocation failures without gfp flags and internal documentation lacks clarity. Improve lock error detection, update docs, fix race and allocation edge cases and optimize erase allocations using a fallback to GFP_KERNEL | GFP_NOFAIL.* tag 'mm-stable-2026-08-26-15-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (172 commits) selftests/proc: make proc-maps-race work with READ_IMPLIES_EXEC memcg: move LRU size accounting on reparenting instead of copying it mm/vmscan: fix comment logic in balance_pgdat maple_tree: add helper mas_make_walkable() maple_tree: avoid extra gap calculation maple_tree: fix argument name in header maple_tree: change two GFP flags in tests maple_tree: document erase and allocations better maple_tree: avoid mas_erase() and mtree_erase() failures maple_tree: document that erase may use GFP_KERNEL for allocations maple_tree: catch race in mas_alloc_cyclic() maple_tree: add bulk parent set helper maple_tree: micro optimisation of mas_wr_store_type() maple_tree: optimise mas_wr_node_store() when not in rcu mode maple_tree: use prefetched value in mas_wr_store_type() maple_tree: clarify comments on mas_nomem() maple_tree: drop MAPLE_ALLOC_SLOTS maple_tree: drop dead code from mas_extend_spanning_null() maple_tree: documentation fix maple_tree: add write lock checking with lockdep sequence numbers ... List of files: /linux/tools/testing/selftests/Makefile

2f252a7a6c90c94be042c10ca3b85f37038d1070 - kselftest: alloc_tag: add kselftest for ioctl interface

Wed, 08 Jul 2026 20:01:27 +0200

kselftest: alloc_tag: add kselftest for ioctl interfaceIntroduce a kselftest to verify the new IOCTL-based interface for/proc/allocinfo. The test covers:1. Validation of the filename filter.2. Validation of the function filter.The first test validates the functionality of the filename filter. Using"mm/memory.c" as the candidate filename filter, it retrieves filteredentries from both procfs and ioctl and matches the first VEC_MAX_ENTRIESentries.The second test validates the functionality of the function filter. Ituses "dup_mm" as the candidate function as we do not expect this functionname to change frequently and hence won't be needing to modify this testoften.Note that both the tests match line no, function name and file namefields. Bytes allocated and calls are not matched as those values maychange in the time when the data is being read from procfs and ioctl andhence can lead to false negatives.[abhishekbapat@google.com: fix a typo in the selftest] Link: https://lore.kernel.org/e4e49ec4a5960292aeeb9e196526c18dc95228a2.1785867739.git.abhishekbapat@google.com Closes: https://sashiko.dev/#/patchset/cover.1783532853.git.abhishekbapat@google.comLink: https://lore.kernel.org/e2a3795677a14aeab249758ba570cd5e98402032.1783532853.git.abhishekbapat@google.comSigned-off-by: Abhishek Bapat Tested-by: Hao Ge Acked-by: Hao Ge Cc: Jonathan Corbet Cc: Kent Overstreet Cc: Sourav Panda Cc: Suren Baghdasaryan Signed-off-by: Andrew Morton List of files: /linux/tools/testing/selftests/Makefile

637315cb400eed1dbe721954fea437a61a2d65b2 - Merge tag 'kvm-riscv-7.3-1' of https://github.com/kvm-riscv/linux into HEAD

Tue, 18 Aug 2026 13:07:31 +0200

Merge tag 'kvm-riscv-7.3-1' of https://github.com/kvm-riscv/linux into HEADKVM/riscv changes for 7.3- Svadu/Zicfiss/Zicfilp FWFT support for Guest- Use try_cmpxchg for IMSIC MRIF RMW- More arch-specific tracepoints in KVM RISC-V- Eager Page Splitting for KVM RISC-V- Optimize hfence request handling for SMP Guests- Improve dirty log clearing by skipping zero bits in mask- Guard HFENCE range loops against overflow- CPU PM notifiers in KVM RISC-V for non-retentive idle states- Fix kernel-mode vector context save/restore for Guest List of files: /linux/tools/testing/selftests/Makefile

ed3b875bea55a3ec4837113356df2ead11115af9 - Merge tag 'mm-stable-2026-08-18-18-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Fri, 21 Aug 2026 03:17:08 +0200

Merge tag 'mm-stable-2026-08-18-18-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmPull MM updates from Andrew Morton: - "mm: drop "sub" prefix from various places" (Dev Jain) page->folio conversion and a naming cleanup - "mm/kasan: remove redundant initialization for kasan_flag_write_only" (Igor Putko) KASAN cleanup work - "mm/filemap: reduce unnecessary xarray lookups" (Chi Zhiling) Small speedup in the pagecaache read code - "mm/percpu: Fix possible NOFS/NOIO reclaim recursion" (Kaitao Cheng) Improve the vmalloc code - mainly the avoidance of GFP_KERNEL allocations when the caller asked for GFP_NOFS or GFP_NOIO - "mm/kmemleak: avoid soft lockup when scanning task stacks" (Breno Leitao) Avoid a soft lockup watchdog trigger from the kmemleak scanning code in extreme situations - "mm/page_owner: misc cleanups" (Ye Liu) Cleanups to the page_owner code. For some reason lots of people have been working on the page_owner code this cycle. - "mm: convert to walk_page_range_vma() to eliminate find_vma()" (Kefeng Wang) Simplify and accelerate the page walking library function - "mm/migrate: preparatory cleanups for batch copy and offload" (Shivank Garg) Cleanups in the migration code - "mm/page_owner: add per-fd filter infrastructure for print_mode and NUMA filtering" (Zhen Ni) Per-fd filtering to page_owner in order to reduce the sometimes vast amount of output it can produce - "mm: Refactor bootmem gigantic hugepage allocation" (Muchun Song) Fixes and preparatory cleanups around bootmem HugeTLB handling, sparse initialization ordering, and related vmemmap setup - "mm/zsmalloc: reduce lock contention in zs_free()" (Wenchao Hao) Reduce lock contention in zs_free(), which dominates the unmap path under memory pressure on Android (LMK kills) and on x86 servers running zswap-heavy workloads. Up to 1.83x improvement in microbenchmarking. - "move alloc_tag.c file under mm/" (Suren Baghdasaryan) - "samples/damon: handle damon_{start,stop}() failures" (SJ Park) Fix improper handling of damon_start(), damon_stop(), and damon_call() failures across DAMON sample modules to prevent potential memory leaks, operation disruptions and use-after-free bugs - "mm/damon/sysfs: kobject_del() directories that users can create/remove" (SJ Park) Fix delayed sysfs directory removal under DEBUG_KOBJECT_RELEASE causeing creation failures due to duplicate directory names by adding missing kobject_del() calls before creating new directories - "mm: cleanup clear_not_present_full_ptes()" (David Hildenbrand) Clean up the core pte handling code - "selftests/damon: misc fixes for test bugs" (Kunwu Chan) Fix several bugs in the DAMON selftests - "selftests/damon: fix memcg_path staging handling" (Cheng Nie) Fix a bug in _damon_sysfs.py for damos_filter memcg_path setup, and add a test case for it in sysfs.py. - "selftests/damon: test kdamond refresh_ms" (Ruslan Valiyev) Selftest coverage for DAMON's refresh_ms sysfs feature by updating the test control module and verifying that scheme stats update automatically without manual intervention - "mm/damon: five misc fixups" (Akinobu Mita) Miscellaneous DAMON fixups. - "mm/damon/core: detect internal variation above max_nr_regions/2" (Jiayuan Chen) Fix DAMON's region splitting behavior when region counts exceed half the maximum budget by dynamically scaling down the split fraction as the limit approaches, preventing large regions from staying un-split, and add corresponding KUnit test coverage - "mm: preparatory patches for PMD level swap entries" (Usama Arif) Refactor and clean up PMD softleaf helpers, call sites, and architecture flags to lay the groundwork for a follow-up series that introduces PMD page table swap entries - "mm/damon: update, optimize, and clean up doc, tests, and code" (SJ Park) Update DAMON design and ABI documentation, expands unit and selftest coverage, optimize damon_commit_target_regions(), and clean up recently added sysfs interface code for better readability - "mm/vmpressure: reduce CPU, memory and code overhead on cgroup v2" (Usama Arif) Optimize vmpressure() by skipping unnecessary work on cgroup v2 for userspace event notifications and refactor v1-only eventfd handling into mm/memcontrol-v1.c to reduce memory overhead and code complexity - "selftests/mm: refactor pkey helpers and fix mmap error handling" (Hongfu Li) Refactor pkeys shared tracing and assertion helpers into a common file, unify protection key selftests to use consistent diagnostic logging and assertions, and enforce standardized MAP_FAILED return checks for mmap() calls across the tests - "mm/damon: optimize out nr_accesses_bp" (SJ Park) Replace the error-prone, continuously updated nr_accesses_bp field in damon_region with an on-demand moving sum function, reducing structure memory overhead and avoiding state corruption bugs - "Open HugeTLB allocation routine for more generic use" (Ackerley Tng) Decouple HugeTLB folio allocation from VMA dependencies by introducing hugetlb_alloc_folio(), enabling subsystems like guest_memfd to allocate HugeTLB folios without standard VMA reservations or pseudo-VMAs - "mm/damon: provide pseudo moving sum probe_hits" (SJ Park) Integrate DAMON's probe_hits attribute counter into the pseudo moving sum infrastructure, enabling real-time, online monitoring without waiting for full aggregation intervals - "mm: Some cleanups for page allocator APIs" (Brendan Jackman) Simplify and refactor the page allocator entry points and flags by unifying allocation paths, adding internal alloc_flags arguments, and eliminating redundant __ prefixed alloc_pages variants. - "Fix incorrect access of hugetlb pte entries" (Dev Jain) Enforce the consistent use of huge_ptep_get() instead of ptep_get() for HugeTLB entries and fixes an unaligned address issue in arm64's huge_ptep_get() implementation - "mm/damon: validate all parameters in the core" (SJ Park) Consolidate parameter validation into the DAMON core specifically within damon_start() and damon_commit_ctx() to centralize error checking, eliminate caller-side redundant checks and to improve maintenance efficiency - "tools/mm/page_owner_sort: fix filtering and cleanup issues" (Yichong Chen) Rename is_need() to filter_record() for clearer return semantics, fix per-record allocation memory leaks and bound output copies in search_pattern() to address an existing buffer issue - "memcg: bail out reclaim when memcg is dying" (Jiayuan Chen) Mitigate a system-wide stall which occurs when a cgroup is removed while one of its memory control files is doing synchronous reclaim - "mm/memory-failure: add panic option for unrecoverable pages" (Breno Leitao) Introduce an opt-in vm.panic_on_unrecoverable_memory_failure sysctl that immediately panics the kernel on unrecoverable memory errors in kernel-owned pages to preserve error context and prevent delayed, silent data corruption - "mm/damon: refactor damon_{start,stop,commit}() for simple error handling" (SJ Park) Refactor the DAMON core API functions to guarantee that all contexts are fully stopped when damon_start(), damon_stop(), or damon_commit() fail, eliminating the need for complex and error-prone caller-side cleanup code - "Keep tail page private zero at free and folio split" (Zi Yan) Add checks to ensure tail_page->private is zero when freeing compound or high-order pages and when promoting tail pages during large folio splits. By validating these fields at free and split time, it allows the removal of redundant private field clearing inside prep_compound_tail() - "mm: drop redundant lru_add_drain in anon folio reuse paths" (Barry Song) Eliminate redundant lru_add_drain() calls in wp_can_reuse_anon_folio() and do_swap_page() to reduce LRU lock contention and system overhead By validating folio refcounts against the LRU cache before draining and removing unnecessary drains in the swap path, it achieves up to a 30.5% reduction in drain calls during heavy swap workloads - "mm: clean up folio LRU and swap declarations" (Jianyue Wu) Reorganize folio LRU and swap code by relocating page-cluster state to mm/swap_state.c, renaming mm/swap.c to mm/folio.c, and moving MM-internal reclaim declarations into mm/internal.h. - "userfaultfd: working set tracking for VM guest memory" (Kiryl Shutsemau) Add userfaultfd support for tracking the working set of VM guest memory, so a VMM can identify hot pages and reclaim cold ones to tiered or remote storage - "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 2)" (David Hildenbrand) Remove the remaining pieces of CONFIG_HAVE_BOOTMEM_INFO_NODE, performing some smaller cleanups around freeing of reserved vmemmap pages on the way. - "mm/damon: update probe hits for runtime parameter commits" (SJ Park) Ensure that DAMON's probe_hits attribute counter is properly updated when monitoring intervals are changed at runtime, matching the behavior of nr_accesses. To achieve this, it refactors and renames existing helper functions for shared use, applies the updates to probe_hits, and handles edge cases in damon_probe_hits_mvsum() to maintain measurement accuracy. - "KSM: performance optimizations for rmap_walk_ksm" (xu xin) Resolve a severe KSM reverse-mapping performance bottleneck where thousands of split VMAs sharing a single anon_vma cause extended lock contention. By adding an interval-filtering check during the rmap walk, it reduces worst-case anon_vma lock hold times from over 500ms down to under 2ms, preventing application freezes and latency spikes under memory pressure. - "mm: split a couple of headers from internal.h" (Mike Rapoport) Split declarations related to mm_init, memblock, vmalloc and sparse into new headers - "KSM: use linear_page_index in collect_procs_ksm()" (xu xin) Apply the interval tree optimization from rmap_walk_ksm() to collect_procs_ksm() to avoid iterating over non-matching VMAs during KSM memory error handling. It hoists loop-invariant address initialization and restricts the anon_vma_interval_tree_foreach walk to a targeted page offset range, reducing redundant checks and improving lookup efficiency. - "selftests/mm: avoid false failures in hugetlb and KSM tests" (Sayali Patil) Fix issues in the hugetlb and KSM MM selftest categories that can report failures when the prerequisites for the tests are not satisfied - "mm/damon: introduce data attributes only monitoring" (SJ Park) Introduce attribute-weighted region management in DAMON, allowing users to prioritize specific data attributes (such as page sizes or cgroups) over or instead of access monitoring. By assigning weights to attribute probes, DAMON can completely disable access tracking and adjust monitoring regions based on weighted probe-hit counters to optimize monitoring quality for attribute-focused workloads. - "mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings" (Stanislav Kinsburskii) Extend hmm_range_fault() to support userfaultfd-backed regions by allowing the mmap lock to be dropped during fault handling via a new hmm_range_fault_locked() helper. By accepting a locked pointer and signaling retry status when lock release occurs, it enables page fault resolution in userfaultfd regions while preserving backward compatibility for existing callers. - "mm: make VMA page offset handling more consistent" (Lorenzo Stoakes) Clean up and standardize how vma->vm_pgoff is accessed and manipulated across file-backed and anonymous mappings in the kernel It introduces dedicated helper functions such as vma_start_pgoff(), vma_end_pgoff(), vma_set_pgoff() and linear_page_delta() while renaming rmap interval tree helpers to better reflect their functionality. These changes establish a cleaner foundation for future work that will unify virtual page offset indexing for all anonymous and CoW'd folios. - "mm: handle device-private PMDs in walk callbacks" (Usama Arif) Address kernel panics and state corruption caused by MM walk callbacks reaching non-present device-private PMD swap entries created during HMM migrations It ensures that functions which acquire pmd_trans_huge_lock() properly recognize device-private PMDs instead of assuming a present THP or a standard migration entry. - "mm/rmap: Refactor try_to_unmap_one" (Dev Jain) Refactor try_to_unmap_one by modularizing Hugetlb, anonymous-lazyfree, and anonymous-swapbacked logic into dedicated functions, laying the structural groundwork for batched anonymous large folio unmapping. - "Docs/ABI/damon: sysfs ABI document fixes and additions" (Song Hu) Fix typos and fills in missing entries in the DAMON sysfs ABI document - "dax/kmem: atomic whole-device hotplug via sysfs" (Gregory Price) Introduce an atomic sysfs state attribute and supporting DAX/MM infrastructure to prevent userland races when offlining and removing entire memory regions By adding an unplugged state alongside standard online modes, it enables whole-device atomic hotplug control while preserving backward compatibility. - "mm: convert more vm_flags_t users to vma_flags_t" (Lorenzo Stoakes) Continue transitioning the kernel from the deprecated vm_flags_t type to vma_flags_t across core memory management infrastructure. It replaces legacy type usage in core functions such as do_mmap(), unmapped area allocation, mm->def_vma_flags, and VMA operations like mlock, mprotect, and mremap. - "Two small patches to clean up mm/mm_slot.h" (xu xin) Refactor mm_slot.h by introducing mm_slot_remove() to unify duplicate slot deletion sequences in khugepaged and KSM. It also adds code documentation explaining why mm_slot_lookup and mm_slot_insert must remain as preprocessor macros rather than static inline functions. - "mm/damon/core: hide core-private struct fields" (SJ Park) Clean up DAMON core structures by consistently marking internal-only fields with private: comment tags to prevent improper direct access from outer layers. It enforces encapsulation across core structures including damon_region, damon_target, and damon_ctx and updates DAMON_SYSFS to interact through approved access APIs instead of exposing raw struct members. - "mm/damon: unurgent fixes for infinite loop, NULL de-ref and races" (SJ Park) Address potential infinite loops, NULL dereferences, and race conditions identified in DAMON It fixes an infinite loop triggered by extreme user configurations, a NULL pointer dereference within unit tests and minor monitoring accuracy degradation caused by subtle runtime races. - "mm/page_alloc: fixes for free_pages_nolock() on RT/UP" (Brendan Jackman) Fix an NMI safety flaw in __free_frozen_pages() where freeing pages on non-SMP or PREEMPT_RT kernels can bypass can_spin_trylock() checks via non-PCP or isolated migration paths. It also resolves potential kernel crashes and privilege escalation risks triggered when BPF tracing runs in NMI context alongside memory hotplug or large allocation frees. - "mm/page_alloc: couple of followups for recent cleanups" (Brendan Jackman) Clean up and update page allocator nomenclature, documentation, and debug assertions. It aligns internal FPI_ flags with the public "nolock" naming convention, removes outdated internal implementation details from high-level page allocator comments, and eliminates obsolete VM_BUG_ON() assertions in allocation paths. - "mm/mseal: further cleanups" (Lorenzo Stoakes) Refactor and simplify the mseal implementation by clarifying API boundaries and removing unnecessary code complexity. It replaces generic do_mseal() usage outside the syscall with a dedicated mseal_mmap_page_zero() helper for MMAP_PAGE_ZERO, eliminates mm_struct parameters to enforce that sealing applies only to current->mm, and streamlines overall logic and comments with no functional changes intended. - "mm/vmscan: fix swappiness=max and clean up per-node proactive reclaim" (Ridong Chen) Resolve reclaim behavior bugs and clean up function parameters across memory reclaim paths It fixes swappiness=max in both standard reclaim and MGLRU so unswappable anonymous memory no longer falls back to evicting page cache, ensures reclaim_store() returns accurate error codes instead of collapsing all failures into -EAGAIN, and removes the obsolete gfp_mask parameter from __node_reclaim(). - "mm: mincore: misc cleanups" (Kefeng Wang) Clean up and simplifies the mincore code. Most importantly, it removes the historical special behavior that always reports VM_PFNMAP pages as non-resident. - "mm/huge_memory: drop dead split helper variants" (Kiryl Shutsemau) Two trivial cleanups in the folio split API - "mm/damon: fix uninitialized DAMOS field and kunit exec expectation bugs" (SJ Park) Resolve minor operational and testing bugs in DAMON identified by Sashiko. It initializes the damos->last_applied field to prevent occasional efficiency degradation and fixes invalid memory accesses in DAMON KUnit tests during test failure handling. - "cleanup for stable_page_flags()" (Jinjiang Tu) Clean up and refactor stable_page_flags() used by /proc/kpageflags without altering functionality. It uses BIT_ULL() to prevent shift-overflow warnings on 64-bit flag bits, converts folio-specific flag checks to standard folio_test_*() helpers, and removes redundant CONFIG_PAGE_IDLE_FLAG handling. - "Batch unmap of uffd-wp file folios" (Dev Jain) Extend batched folio unmapping support to file folios within userfaultfd write-protect (uffd-wp) VMAs by adding batching capabilities to pte_install_uffd_wp_if_needed(). This removes special-case restrictions on uffd-wp VMAs in try_to_unmap_one(), significantly simplifying the function's control flow and complexity. - "mm/early_ioremap: clarify and clean up early_ioremap_reset()" (Sang-Heon Jeon) Clarify and clean up the architecture-specific usage of __late_set_fixmap() and __late_clear_fixmap() after early_ioremap_reset() It adds explicit documentation regarding when early_ioremap_reset() must be called and removes redundant macro definitions and reset calls in the RISC-V and ARM64 architectures. - "mm: fix reclaim storms in defrag_mode" (Johannes Weiner) Address severe performance regressions, swap storms, and spurious OOMs caused by vm.defrag_mode=1 under high memory pressure in Meta production It updates the page allocator slowpath so non-movable allocation requests actively trigger direct reclaim and direct compaction at pageblock_order scale, allowing them to claim whole pageblocks rather than spinning unproductively. - "zram: lockmap tweaks" (Sebastian Siewior) Optimize and fix lockdep tracking for zram devices by consolidating per-entry lockmaps and isolate lock classes across multiple instances This reduces memory overhead by replacing per-entry lockdep_map instances with a single map per struct zram, and assigns a dynamic lock_class_key to each instance to prevent false deadlock reports when different zram devices are backed by distinct filesystems.* tag 'mm-stable-2026-08-18-18-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (501 commits) selftests/mm: thuge-gen: fix test_shmget() for PAGE_SIZE check selftests/mm: unpoison pages in memory-failure teardown mm/shmem: downgrade final i_blocks check in shmem_evict_inode() to pr_warn() mm/khugepaged: replace mutex_lock/mutex_unlock usage with guard macro mm/zsmalloc: fix release order of locks in zs_page_migrate() Documentation: zram: remove sections numbering ksm: stop iterating VMAs when ksm_test_exit returns true mm: fold userfaultfd_rwp() to false without CONFIG_ARCH_HAS_PTE_PROTNONE mm/migrate: report RCU-tasks quiescent states in migrate_pages_batch() zram: use a custom key for each zram object zram: move lockmap to be per-zram instead per table selftests/mm: fix gup_longterm EINVAL error message mm: page_alloc: fix non-movable reclaim storm in defrag_mode mm: page_alloc: move capture_control to the page allocator mm: compaction: support non-movable compaction for pageblock requests mm: page_alloc: __GFP_FS lockdep annotation for direct compaction hugetlb: evaluate subpool free state while locked mm/damon: remove trailing semicolons after function definitions mm/damon/ops-common: prevent migration fallback to non-target nodes mm/damon: update outdated comment about DAMOS filter handling ... List of files: /linux/tools/testing/selftests/Makefile

c44e278ce02efd0c4be79a8eda1ea6885c1ce5ec - BackMerge tag 'v7.2' into drm-next

Thu, 20 Aug 2026 02:58:44 +0200

BackMerge tag 'v7.2' into drm-nextLinux 7.2There was a lot of conflicts this round between fixes and next,and I'd like to get the merge resolutions that we have in drm-tip.Signed-off-by: Dave Airlie List of files: /linux/tools/testing/selftests/Makefile

249c5ee21a26867b3b165f59cc0f2de335bd35bb - selftests/dax: add dax/kmem hotplug sysfs regression test

Sun, 12 Jul 2026 17:45:04 +0200

selftests/dax: add dax/kmem hotplug sysfs regression testAdd a kselftest for the dax/kmem whole-device "state" sysfs attribute(/sys/bus/dax/devices/daxX.Y/state), which transitions a kmem-backeddax device between "unplugged", "online" and "online_movable".The kselftest also includes a test to demonstrate the force-unbinddoes not deadlock - but this is destructive (the dax device can neverbe rebound), so it only runs when DAX_KMEM_TEST_UNBIND=1 is set.Provisioning a devdax device and binding it to kmem needs daxctl/ndctlout of scope for an in-tree selftest. As the test mutates a device'smemory, the operator opts in by naming it in DAX_KMEM_TEST_DEV (or"auto" to pick the first kmem-bound device); it SKIPs when unset, whenno device is present, or when the memory cannot be freed to a baseline.When a device is available it validates the interface contract: - online / online_movable actually add memory (MemTotal grows), - online is idempotent, - switching between online types without unplug is rejected, - unplug removes memory and the reported state is "unplugged" - invalid input is rejected, - unplug and unbind tolerate blocks toggled out-of-band through the per-block memoryX/state interface.One specific regression test: online -> unplug -> online_movable -> unplugRe-online must re-reserve per-range resources so subsequent unplugactually offlines and removes instead of silently reporting successwhile the memory stays online.Link: https://lore.kernel.org/20260712154505.3564379-11-gourry@gourry.netSigned-off-by: Gregory Price Cc: Alison Schofield Cc: Danilo Krummrich Cc: Dave Jiang Cc: David Hildenbrand (Arm) Cc: Greg Kroah-Hartman Cc: Hannes Reinecke Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Oscar Salvador Cc: Pankaj Gupta Cc: "Rafael J. Wysocki" Cc: Shuah Khan Cc: Suren Baghdasaryan Cc: Vishal Verma Cc: Vlastimil Babka Signed-off-by: Andrew Morton List of files: /linux/tools/testing/selftests/Makefile

efe86f088f48f18c27b648e5724048947f3b7fb4 - Merge drm/drm-next into drm-xe-next

Tue, 14 Jul 2026 15:40:31 +0200

Merge drm/drm-next into drm-xe-nextSync some i915/display changesSigned-off-by: Rodrigo Vivi List of files: /linux/tools/testing/selftests/Makefile

6d177908bad5992e17669030db41caab88041d5e - Merge drm/drm-next into drm-intel-next

Tue, 30 Jun 2026 14:55:43 +0200

Merge drm/drm-next into drm-intel-nextSync with v7.2-rc1.Signed-off-by: Jani Nikula List of files: /linux/tools/testing/selftests/Makefile

827b9aabd3ea3e96d5e48abed9f44dbd1e550d4e - Merge drm/drm-next into drm-misc-next

Tue, 30 Jun 2026 10:16:00 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to get drm-misc-next to v7.2-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/testing/selftests/Makefile

7dd19adaaac9a161723a24de7c270861063ec6ac - Merge tag 'v7.2-rc1' into drm-rust-next

Sun, 28 Jun 2026 22:39:43 +0200

Merge tag 'v7.2-rc1' into drm-rust-nextMerge v7.2-rc1 into drm-rust-next to start the next cycle.Devres now requires T: 'static, which conflicts with shmem::Object usingDevres> without that bound. Resolve by adding 'staticas a supertrait to DriverObject and DeviceContext, which does notrestrict any current use cases since DriverObject is always implementedon owned, refcounted types and DeviceContext is a sealed marker traitwith only unit-type implementors.If DriverObject (or DeviceContext) ever becomes lifetime-parameterized(e.g. via a GAT for TTM backed objects), the 'static supertrait can berelaxed at that point.Signed-off-by: Danilo Krummrich List of files: /linux/tools/testing/selftests/Makefile

146cc263e457ff6055fe7829e4f4f4b0b5d5dd86 - Merge tag 'v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next

Tue, 18 Aug 2026 14:21:04 +0200

Merge tag 'v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-nextLinux 7.2 List of files: /linux/tools/testing/selftests/Makefile

0eaed89c18aeedf0898baf2dbf5ff027c6795152 - Merge tag 'timers-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource

Mon, 17 Aug 2026 10:29:52 +0200

Merge tag 'timers-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/daniel.lezcano/linux into timers/clocksource - Use designated initializers for sh_mtu2, sh_cmt, and sh_tmu, and drop the unused initializer in the platform_device_id table for sh_mtu2 (Uwe Kleine-König) - Remove redundant dev_err()/dev_err_probe() messages when devm_request_*_irq() fails, as the helper already logs an error message (Pan Chuang) - Fix a boot hang on Allwinner D1 when a forced minimum delta is used with the sun4i timer (Felix Yan) - Fix an IRQ leak in the cpuhp_setup_state() error path by freeing the IRQ on failure in the NXP PIT driver (WenTao Liang) - Fix incorrect unmapping of shared MMIO between the clocksource and clockevent drivers. If one of them fails to initialize, the error path unmaps the shared MMIO region, leaving the other driver with an invalid mapping on clps711x (Guangshuo Li) - Make the samsung_pwm driver compatible with PREEMPT_RT by replacing regular spinlocks with raw_spinlock_t in atomic contexts (Marek Szyprowski) - Use __raw_readl() and __raw_writel() instead of ioread32() and iowrite32() to support SWAP_IO_SPACE in the rtl-otto driver (Rustam Adilov) - Fix a missing clk_disable_unprepare() call in the timer initialization error path of the Armada driver (Yuho Choi)Link: https://lore.kernel.org/lkml/75feea31-683d-45a1-87f4-ab045e0152ae@oss.qualcomm.com List of files: /linux/tools/testing/selftests/Makefile

b4d85f863e5a6f1fa01b186001af0f68f4f5239e - Merge branch 'next' into for-linus

Sat, 15 Aug 2026 06:26:07 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.3 merge window. List of files: /linux/tools/testing/selftests/Makefile

76904fccf81936c084faebc73ac72c0919a42941 - Merge tag 'v7.2-rc3' into next

Tue, 14 Jul 2026 04:06:00 +0200

Merge tag 'v7.2-rc3' into nextSync up with mainline to pull in stable fixes to avoid merge conflicts. List of files: /linux/tools/testing/selftests/Makefile

1c3e8cef79ea5f1415cff0d3c507e2e07b71ade8 - Merge tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Mon, 17 Aug 2026 21:56:12 +0200

Merge tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsPull misc vfs updates from Christian Brauner: "Bigger cleanups: - The lockref dead-count handling is tidied up. The open-coded check for a count below zero as the dead marker relies on information the caller should not have. - make put_mnt_ns() leave mounts connected. Destroying a mount namespace disconnected its mounts from their mount points. So a file descriptor still open on the parent of a mount point could be used to peek under it. Locked mounts were already kept connected to prevent exactly that. But a mount is only locked when its tree is copied across a user namespace boundary. So a mount namespace set up by a privileged component had no locked mounts and its mounts were disconnected. Passing UMOUNT_CONNECTED keeps every mount connected and prevents that bug. - vfs_prepare_mode() passes S_IFDIR for directories. I meant to fix that ago but didn't get to it. So now someone finally did it. This kills the exception where the mode could be 0 when a directory was created whereas every other creation operation passed it explicitly already. - move long delayed work for ufs, jffs2, hfsplus, hfs and affs from the per-cpu system_long_wq to the new unbound system_dfl_long_wq. None of that work relies on per-cpu state and the work item is enqueued with queue_delayed_work() whose timer is global anyway. So it may as well benefit from scheduler task placement. Smaller fixes and cleanups: - unlock_buffer() and journal_end_buffer_io_sync() use clear_and_wake_up_bit() - the pipe page pools are unified into a single per-pipe pool and the extra wake_up(rd_wait) is limited to EPOLLET consumers - eventpoll now computes its timer slack lazily in ep_poll() - shrink_dcache_for_umount() keeps making progress on busy roots - excess xarray nodes are freed in clear_inode() - romfs detects hard link cycles - the user path of nested backing files is fixed - pidfd holds exec_update_lock around the namespace ioctl - non-memcg-aware nr_cached_objects is skipped during memcg slab shrink - iomap_write_iter() always returns status - mangle_path() is renamed to seq_mangle_path() - inode timestamp accessors are annotated - new regression test for pipe->poll_usage. - a few documentation, kernel-doc and selftest fixes"* tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (67 commits) selftests/namespaces: Fix racy pipe handshake in timens and pidns_separate selftests/epoll: add a regression test for pipe->poll_usage pipe: only enable the extra wake_up(rd_wait) for EPOLLET consumers pidfd: hold exec_update_lock around namespace ioctl fs: fix user path of nested backing files fs: remove stale inode_insert5() kernel-doc parameter fs: fix switch/case indentation in sysfs() syscall fs: document semantics of kstat::{uid,gid} fields dcache: keep shrink_dcache_for_umount() making progress on busy roots seq_file: rename mangle_path to seq_mangle_path nstree: add/fix struct ns_id_req kernel-doc member fields dcache: use lockref routines for dead count checks lockref: tidy up dead count handling initramfs: fix typo in reserve_initrd_mem comment fs/pipe: unify the page pools into a single per-pipe pool fs: annotate inode timestamp accessors eventpoll: compute timer slack lazily in ep_poll() selftests/filesystems: add mntns cleanup test put_mnt_ns(): leave mounts connected affs: Move long delayed work on system_dfl_long_wq ... List of files: /linux/tools/testing/selftests/Makefile

cd051cfe1e35a471fc2cdf6d32fae6ee23305ecb - Merge tag 'vfs-7.3-rc1.failfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Mon, 17 Aug 2026 18:15:52 +0200

Merge tag 'vfs-7.3-rc1.failfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsPull failfs filesystem from Christian Brauner: "Add failfs and expose a FD_FAILFS_ROOT sentinel. This allows userspace to shed their filesystem state completely. A process with its root or working directory in failfs must anchor every path lookup at an explicit file descriptor. Absolute paths, absolute symlinks and AT_FDCWD-relative lookups simply fail. Failfs is the counterpart to nullfs. nullfs says adds a permanently empty, immutable directory whose lookups fail with ENOENT but which can be opened, read, stat'd and mounted upon. Failfs on the other hand fails every operation. The root cannot be opened at all. A single instance is mounted during early boot via kern_mount(), which makes it logically distinct from every mount namespace. This is accompanied by a new fchroot() system call which makes chrooting via a file descriptor a first class concept. It's possible to chroot into failfs as an unprivileged user provided the task has no new privileges set"* tag 'vfs-7.3-rc1.failfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: Documentation: add failfs documentation selftests/filesystems: add failfs selftests arch: hookup fchroot() system call fs: support FD_FAILFS_ROOT in fchroot() fs: add fchroot() fs: support FD_FAILFS_ROOT in fchdir() fs: add failfs List of files: /linux/tools/testing/selftests/Makefile

ad8d485e665829ecbf3c97b22ce251f8ff5f8037 - Merge tag 'vfs-7.2-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Fri, 14 Aug 2026 16:58:01 +0200

Merge tag 'vfs-7.2-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsPull vfs fixes from Christian Brauner: - Don't warn when a mount is completed from another user namespace. fsopen() records the caller's user namespace in fc->user_ns and hands back an ordinary file descriptor. The task that calls fsconfig(FSCONFIG_CMD_CREATE) doesn't have to be the one that created the context, and mount_capable() lets it through as long as the caller has CAP_SYS_ADMIN over fc->user_ns, which anyone in an ancestor namespace does. So fc->user_ns != current_user_ns() is something an unprivileged user can arrange. Both overlayfs and binfmt_misc WARN_ON() that. Overlayfs already has the same check as a plain error return in ovl_parse_param(). Drop the WARN_ON() and just refuse. Add selftests for both cases. - Reject pid allocations through dead ancestor pid namespaces. Require PIDNS_ADDING in every namespace that will receive the pid before publishing any of them. That preserves the invariant that free_pid() never decrements pid_allocated in a namespace whose child_reaper is no longer live. The existing ENOMEM behavior is unchanged.* tag 'vfs-7.2-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: pid: reject allocations through dead ancestor pid namespaces selftests/filesystems: test completing a context from another user namespace binfmt_misc: don't warn when the mount is completed from another user namespace ovl: don't warn when the mount is completed from another user namespace List of files: /linux/tools/testing/selftests/Makefile