Linus, please merge the MM changes for this release window. It's quite a large one.
I'm seeing two conflicts:
fs/exec.c. Stephen's resolution is here:
https://lkml.kernel.org/r/[email protected]
include/linux/fortify-string.h. Stephen's resolution is here:
https://lkml.kernel.org/r/[email protected]
Thanks.
The following changes since commit 59298997df89e19aad426d4ae0a7e5037074da5a:
x86/uaccess: avoid check_object_size() in copy_from_user_nmi() (2022-09-26 12:14:35 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm tags/mm-stable-2022-10-08
for you to fetch changes up to bbff39cc6cbcb86ccfacb2dcafc79912a9f9df69:
hugetlb: allocate vma lock for all sharable vmas (2022-10-07 14:28:40 -0700)
----------------------------------------------------------------
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
linux-next for a couple of months without, to my knowledge, any negative
reports (or any positive ones, come to that).
- Also the Maple Tree from Liam R. Howlett. An overlapping range-based
tree for vmas. It it apparently slight more efficient in its own right,
but is mainly targeted at enabling work to reduce mmap_lock contention.
Liam has identified a number of other tree users in the kernel which
could be beneficially onverted to mapletrees.
Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat
(https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com).
This has yet to be addressed due to Liam's unfortunately timed
vacation. He is now back and we'll get this fixed up.
- Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses
clang-generated instrumentation to detect used-unintialized bugs down to
the single bit level.
KMSAN keeps finding bugs. New ones, as well as the legacy ones.
- Yang Shi adds a userspace mechanism (madvise) to induce a collapse of
memory into THPs.
- Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to support
file/shmem-backed pages.
- userfaultfd updates from Axel Rasmussen
- zsmalloc cleanups from Alexey Romanov
- cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and memory-failure
- Huang Ying adds enhancements to NUMA balancing memory tiering mode's
page promotion, with a new way of detecting hot pages.
- memcg updates from Shakeel Butt: charging optimizations and reduced
memory consumption.
- memcg cleanups from Kairui Song.
- memcg fixes and cleanups from Johannes Weiner.
- Vishal Moola provides more folio conversions
- Zhang Yi removed ll_rw_block() :(
- migration enhancements from Peter Xu
- migration error-path bugfixes from Huang Ying
- Aneesh Kumar added ability for a device driver to alter the memory
tiering promotion paths. For optimizations by PMEM drivers, DRM
drivers, etc.
- vma merging improvements from Jakub Matěn.
- NUMA hinting cleanups from David Hildenbrand.
- xu xin added aditional userspace visibility into KSM merging activity.
- THP & KSM code consolidation from Qi Zheng.
- more folio work from Matthew Wilcox.
- KASAN updates from Andrey Konovalov.
- DAMON cleanups from Kaixu Xia.
- DAMON work from SeongJae Park: fixes, cleanups.
- hugetlb sysfs cleanups from Muchun Song.
- Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core.
----------------------------------------------------------------
Abel Wu (2):
mm/mempolicy: fix lock contention on mems_allowed
mm/page_alloc: only search higher order when fallback
Alexander Potapenko (43):
stackdepot: reserve 5 extra bits in depot_stack_handle_t
instrumented.h: allow instrumenting both sides of copy_from_user()
x86: asm: instrument usercopy in get_user() and put_user()
asm-generic: instrument usercopy in cacheflush.h
kmsan: add ReST documentation
kmsan: introduce __no_sanitize_memory and __no_kmsan_checks
kmsan: mark noinstr as __no_sanitize_memory
x86: kmsan: pgtable: reduce vmalloc space
libnvdimm/pfn_dev: increase MAX_STRUCT_PAGE_SIZE
kmsan: add KMSAN runtime core
kmsan: disable instrumentation of unsupported common kernel code
MAINTAINERS: add entry for KMSAN
mm: kmsan: maintain KMSAN metadata for page operations
mm: kmsan: call KMSAN hooks from SLUB code
kmsan: handle task creation and exiting
init: kmsan: call KMSAN initialization routines
instrumented.h: add KMSAN support
kmsan: add iomap support
input: libps2: mark data received in __ps2_command() as initialized
dma: kmsan: unpoison DMA mappings
virtio: kmsan: check/unpoison scatterlist in vring_map_one_sg()
kmsan: handle memory sent to/from USB
kmsan: add tests for KMSAN
kmsan: disable strscpy() optimization under KMSAN
crypto: kmsan: disable accelerated configs under KMSAN
kmsan: disable physical page merging in biovec
block: kmsan: skip bio block merging logic for KMSAN
kcov: kmsan: unpoison area->list in kcov_remote_area_put()
security: kmsan: fix interoperability with auto-initialization
objtool: kmsan: list KMSAN API functions as uaccess-safe
x86: kmsan: disable instrumentation of unsupported code
x86: kmsan: skip shadow checks in __switch_to()
x86: kmsan: handle open-coded assembly in lib/iomem.c
x86: kmsan: use __msan_ string functions where possible.
x86: kmsan: sync metadata pages on page fault
x86: kasan: kmsan: support CONFIG_GENERIC_CSUM on x86, enable it for KASAN/KMSAN
x86: fs: kmsan: disable CONFIG_DCACHE_WORD_ACCESS
x86: kmsan: don't instrument stack walking functions
entry: kmsan: introduce kmsan_unpoison_entry_regs()
bpf: kmsan: initialize BPF registers with zeroes
mm: fs: initialize fsdata passed to write_begin/write_end interface
x86: kmsan: enable KMSAN builds for x86
x86: kmsan: handle CPU entry area
Alexey Romanov (5):
zsmalloc: zs_object_copy: add clarifying comment
zsmalloc: remove unnecessary size_class NULL check
zsmalloc: zs_object_copy: replace email link to doc
zram: don't retry compress incompressible page
zsmalloc: use correct types in _first_obj_offset functions
Alistair Popple (4):
mm/gup.c: simplify and fix check_and_migrate_movable_pages() return codes
mm/gup.c: don't pass gup_flags to check_and_migrate_movable_pages()
mm/gup.c: refactor check_and_migrate_movable_pages()
mm/migrate_device.c: fix a misleading and outdated comment
Andrew Morton (3):
Merge branch 'mm-hotfixes-stable' into mm-stable
mm/page_alloc.c: rename check_free_page() to free_page_is_bad()
mm/page_alloc.c: document bulkfree_pcp_prepare() return value
Andrey Konovalov (36):
kasan: check KASAN_NO_FREE_META in __kasan_metadata_size
kasan: rename kasan_set_*_info to kasan_save_*_info
kasan: move is_kmalloc check out of save_alloc_info
kasan: split save_alloc_info implementations
kasan: drop CONFIG_KASAN_TAGS_IDENTIFY
kasan: introduce kasan_print_aux_stacks
kasan: introduce kasan_get_alloc_track
kasan: introduce kasan_init_object_meta
kasan: clear metadata functions for tag-based modes
kasan: move kasan_get_*_meta to generic.c
kasan: introduce kasan_requires_meta
kasan: introduce kasan_init_cache_meta
kasan: drop CONFIG_KASAN_GENERIC check from kasan_init_cache_meta
kasan: only define kasan_metadata_size for Generic mode
kasan: only define kasan_never_merge for Generic mode
kasan: only define metadata offsets for Generic mode
kasan: only define metadata structs for Generic mode
kasan: only define kasan_cache_create for Generic mode
kasan: pass tagged pointers to kasan_save_alloc/free_info
kasan: move kasan_get_alloc/free_track definitions
kasan: cosmetic changes in report.c
kasan: use virt_addr_valid in kasan_addr_to_page/slab
kasan: use kasan_addr_to_slab in print_address_description
kasan: make kasan_addr_to_page static
kasan: simplify print_report
kasan: introduce complete_report_info
kasan: fill in cache and object in complete_report_info
kasan: rework function arguments in report.c
kasan: introduce kasan_complete_mode_report_info
kasan: implement stack ring for tag-based modes
kasan: support kasan.stacktrace for SW_TAGS
kasan: dynamically allocate stack ring entries
kasan: better identify bug types for tag-based modes
kasan: add another use-after-free test
kasan: move tests to mm/kasan/
kasan: better invalid/double-free report header
Aneesh Kumar K.V (10):
mm/demotion: add support for explicit memory tiers
mm/demotion: move memory demotion related code
mm/demotion: add hotplug callbacks to handle new numa node onlined
mm/demotion/dax/kmem: set node's abstract distance to MEMTIER_DEFAULT_DAX_ADISTANCE
mm/demotion: build demotion targets based on explicit memory tiers
mm/demotion: add pg_data_t member to track node memory tier details
mm/demotion: drop memtier from memtype
mm/demotion: update node_is_toptier to work with memory tiers
lib/nodemask: optimize node_random for nodemask with single NUMA node
mm/demotion: expose memory tier details via sysfs
Axel Rasmussen (5):
selftests: vm: add hugetlb_shared userfaultfd test to run_vmtests.sh
userfaultfd: add /dev/userfaultfd for fine grained access control
userfaultfd: selftests: modify selftest to use /dev/userfaultfd
userfaultfd: update documentation to describe /dev/userfaultfd
selftests: vm: add /dev/userfaultfd test cases to run_vmtests.sh
Baolin Wang (3):
mm/damon: validate if the pmd entry is present before accessing
mm/damon: replace pmd_huge() with pmd_trans_huge() for THP
mm: migrate: do not retry 10 times for the subpages of fail-to-migrate THP
Bui Quang Minh (1):
mm: skip retry when new limit is not below old one in page_counter_set_max
Charan Teja Kalla (3):
mm/page_ext: remove unused variable in offline_page_ext
mm/cma_debug: show complete cma name in debugfs directories
mm: fix use-after free of page_ext after race with memory-offline
Cheng Li (1):
mm: use nth_page instead of mem_map_offset mem_map_next
Chih-En Lin (1):
mm/page_table_check: fix typos
Christoph Hellwig (1):
mm/swap: remove the end_write_func argument to __swap_writepage
Christophe JAILLET (1):
mm/mremap_pages: save a few cycles in get_dev_pagemap()
David Heidelberg (1):
mm: remove EXPERIMENTAL flag for zswap
David Hildenbrand (4):
mm: fix PageAnonExclusive clearing racing with concurrent RCU GUP-fast
mm/gup: replace FOLL_NUMA by gup_can_follow_protnone()
mm/gup: use gup_can_follow_protnone() also in GUP-fast
mm: fixup documentation regarding pte_numa() and PROT_NUMA
Dawei Li (1):
mm/damon: improve damon_new_region strategy
Dmitry Vyukov (1):
x86: add missing include to sparsemem.h
Feng Tang (1):
mm/hugetlb: add dedicated func to get 'allowed' nodemask for current process
Gaosheng Cui (1):
mm: remove unused inline functions from include/linux/mm_inline.h
Gerald Schaefer (1):
s390/hugetlb: switch to generic version of follow_huge_pud()
Haiyue Wang (2):
mm: migration: fix the FOLL_GET failure on following huge page
mm: fix the handling Non-LRU pages returned by follow_page
Huang Ying (10):
memory tiering: hot page selection with hint page fault latency
memory tiering: rate limit NUMA migration throughput
memory tiering: adjust hot threshold automatically
migrate: fix syscall move_pages() return value for failure
migrate_pages(): remove unnecessary list_safe_reset_next()
migrate_pages(): fix THP failure counting for -ENOMEM
migrate_pages(): fix failure counting for THP subpages retrying
migrate_pages(): fix failure counting for THP on -ENOSYS
migrate_pages(): fix failure counting for THP splitting
migrate_pages(): fix failure counting for retry
Imran Khan (1):
kfence: add sysfs interface to disable kfence for selected slabs.
Jagdish Gediya (1):
mm/demotion: demote pages according to allocation fallback order
Jakub Matěna (2):
mm: refactor of vma_merge()
mm: add merging after mremap resize
Jeff Layton (1):
tmpfs: add support for an i_version counter
Johannes Weiner (4):
mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled
mm: memcontrol: deprecate swapaccounting=0 mode
mm: memcontrol: use do_memsw_account() in a few more places
mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol
Kairui Song (3):
mm/util: reduce stack usage of folio_mapcount
mm: memcontrol: use memcg_kmem_enabled in count_objcg_event
mm: memcontrol: make cgroup_memory_noswap a static key
Kaixu Xia (15):
mm/damon/core: simplify the parameter passing for region split operation
mm/damon: simplify the parameter passing for 'check_accesses'
mm/damon/vaddr: remove comparison between mm and last_mm when checking region accesses
mm/damon: get the hotness from damon_hot_score() in damon_pageout_score()
mm/damon/sysfs: simplify the judgement whether kdamonds are busy
mm/damon/core: iterate the regions list from current point in damon_set_regions()
mm/damon/vaddr: add a comment for 'default' case in damon_va_apply_scheme()
mm/damon/sysfs: use the wrapper directly to check if the kdamond is running
mm/damon: simplify the parameter passing for 'prepare_access_checks'
mm/damon/sysfs: simplify the variable 'pid' assignment operation
mm/damon/core: simplify the kdamond stop mechanism by removing 'done'
mm/damon: use 'struct damon_target *' instead of 'void *' in target_valid()
mm/damon: return void from damon_set_schemes()
mm/damon: rename damon_pageout_score() to damon_cold_score()
mm/damon: deduplicate damon_{reclaim,lru_sort}_apply_parameters()
Kassey Li (1):
mm/page_owner.c: add llseek for page_owner
Ke Sun (1):
mm/filemap: make folio_put_wait_locked static
Kefeng Wang (12):
mm: memory-failure: cleanup try_to_split_thp_page()
mm/util.c: add warning if __vm_enough_memory fails
mm: kill find_min_pfn_with_active_regions()
mm: memory-failure: kill soft_offline_free_page()
mm: memory-failure: kill __soft_offline_page()
mm: kill is_memblock_offlined()
mm: fix null-ptr-deref in kswapd_is_running()
mm: remove BUG_ON() in __isolate_free_page()
mm: reuse pageblock_start/end_pfn() macro
mm: add pageblock_align() macro
mm: add pageblock_aligned() macro
memblock tests: add new pageblock related macro
Kenneth Lee (1):
mm/damon/dbgfs: use kmalloc for allocating only one element
Li Zhe (1):
page_ext: introduce boot parameter 'early_page_ext'
Li kunyu (1):
page_alloc: remove inactive initialization
Li zeming (1):
mm/hugetlb.c: remove unnecessary initialization of local `err'
Liam Howlett (1):
mm/mlock: drop dead code in count_mm_mlocked_page_nr()
Liam R. Howlett (45):
Maple Tree: add new data structure
radix tree test suite: add pr_err define
radix tree test suite: add kmem_cache_set_non_kernel()
radix tree test suite: add allocation counts and size to kmem_cache
radix tree test suite: add support for slab bulk APIs
radix tree test suite: add lockdep_is_held to header
lib/test_maple_tree: add testing for maple tree
mm: start tracking VMAs with maple tree
mm/mmap: use the maple tree in find_vma() instead of the rbtree.
mm/mmap: use the maple tree for find_vma_prev() instead of the rbtree
mm/mmap: use maple tree for unmapped_area{_topdown}
kernel/fork: use maple tree for dup_mmap() during forking
damon: convert __damon_va_three_regions to use the VMA iterator
mm: remove rb tree.
mmap: change zeroing of maple tree in __vma_adjust()
xen: use vma_lookup() in privcmd_ioctl_mmap()
mm: optimize find_exact_vma() to use vma_lookup()
mm/khugepaged: optimize collapse_pte_mapped_thp() by using vma_lookup()
mm/mmap: change do_brk_flags() to expand existing VMA and add do_brk_munmap()
mm: use maple tree operations for find_vma_intersection()
mm/mmap: use advanced maple tree API for mmap_region()
mm: remove vmacache
mm: convert vma_lookup() to use mtree_load()
mm/mmap: move mmap_region() below do_munmap()
mm/mmap: reorganize munmap to use maple states
mm/mmap: change do_brk_munmap() to use do_mas_align_munmap()
arm64: Change elfcore for_each_mte_vma() to use VMA iterator
fs/proc/base: use the vma iterators in place of linked list
userfaultfd: use maple tree iterator to iterate VMAs
ipc/shm: use VMA iterator instead of linked list
bpf: remove VMA linked list
mm/gup: use maple tree navigation instead of linked list
mm/madvise: use vma_find() instead of vma linked list
mm/memcontrol: stop using mm->highest_vm_end
mm/mempolicy: use vma iterator & maple state instead of vma linked list
mm/mprotect: use maple tree navigation instead of VMA linked list
mm/mremap: use vma_find_intersection() instead of vma linked list
mm/msync: use vma_find() instead of vma linked list
mm/oom_kill: use vma iterators instead of vma linked list
mm/swapfile: use vma iterator instead of vma linked list
riscv: use vma iterator for vdso
mm/vmscan: use vma iterator instead of vm_next
mm: remove the vma linked list
mm/mmap: drop range_has_overlap() function
mm/mmap.c: pass in mapping to __vma_link_file()
Liu Shixin (8):
mm/thp: simplify has_transparent_hugepage by using IS_BUILTIN
mm/thp: remove redundant CONFIG_TRANSPARENT_HUGEPAGE
mm/kmemleak: make create_object return void
mm/shuffle: convert module_param_call to module_param_cb
mm: kfence: convert to DEFINE_SEQ_ATTRIBUTE
mm/huge_memory: prevent THP_ZERO_PAGE_ALLOC increased twice
mm/memcontrol: use kstrtobool for swapaccount param parsing
mm: hugetlb: fix UAF in hugetlb_handle_userfault
Matthew Wilcox (1):
mm/vmalloc.c: support HIGHMEM pages in vmap_pages_range_noflush()
Matthew Wilcox (Oracle) (82):
mm: add VMA iterator
mmap: use the VMA iterator in count_vma_pages_range()
proc: remove VMA rbtree use from nommu
arm64: remove mmap linked list from vdso
parisc: remove mmap linked list from cache handling
powerpc: remove mmap linked list walks
s390: remove vma linked list walks
x86: remove vma linked list walks
xtensa: remove vma linked list walks
cxl: remove vma linked list walk
optee: remove vma linked list walk
um: remove vma linked list walk
coredump: remove vma linked list walk
exec: use VMA iterator instead of linked list
fs/proc/task_mmu: stop using linked list and highest_vm_end
acct: use VMA iterator instead of linked list
perf: use VMA iterator
sched: use maple tree iterator to walk VMAs
fork: use VMA iterator
mm/khugepaged: stop using vma linked list
mm/ksm: use vma iterators instead of vma linked list
mm/mlock: use vma iterator and maple state instead of vma linked list
mm/pagewalk: use vma_find() instead of vma linked list
i915: use the VMA iterator
nommu: remove uses of VMA linked list
mm/vmscan: fix a lot of comments
mm: add the first tail page to struct folio
mm: reimplement folio_order() and folio_nr_pages()
mm: add split_folio()
mm: add folio_add_lru_vma()
shmem: convert shmem_writepage() to use a folio throughout
shmem: convert shmem_delete_from_page_cache() to take a folio
shmem: convert shmem_replace_page() to use folios throughout
mm/swapfile: remove page_swapcount()
mm/swapfile: convert try_to_free_swap() to folio_free_swap()
mm/swap: convert __read_swap_cache_async() to use a folio
mm/swap: convert add_to_swap_cache() to take a folio
mm/swap: convert put_swap_page() to put_swap_folio()
mm: convert do_swap_page() to use a folio
mm: convert do_swap_page()'s swapcache variable to a folio
memcg: convert mem_cgroup_swapin_charge_page() to mem_cgroup_swapin_charge_folio()
shmem: convert shmem_mfill_atomic_pte() to use a folio
shmem: convert shmem_replace_page() to shmem_replace_folio()
swap: add swap_cache_get_folio()
shmem: eliminate struct page from shmem_swapin_folio()
shmem: convert shmem_getpage_gfp() to shmem_get_folio_gfp()
shmem: convert shmem_fault() to use shmem_get_folio_gfp()
shmem: convert shmem_read_mapping_page_gfp() to use shmem_get_folio_gfp()
shmem: add shmem_get_folio()
shmem: convert shmem_get_partial_folio() to use shmem_get_folio()
shmem: convert shmem_write_begin() to use shmem_get_folio()
shmem: convert shmem_file_read_iter() to use shmem_get_folio()
shmem: convert shmem_fallocate() to use a folio
shmem: convert shmem_symlink() to use a folio
shmem: convert shmem_get_link() to use a folio
khugepaged: call shmem_get_folio()
userfaultfd: convert mcontinue_atomic_pte() to use a folio
shmem: remove shmem_getpage()
swapfile: convert try_to_unuse() to use a folio
swapfile: convert __try_to_reclaim_swap() to use a folio
swapfile: convert unuse_pte_range() to use a folio
mm: convert do_swap_page() to use swap_cache_get_folio()
mm: remove lookup_swap_cache()
swap_state: convert free_swap_cache() to use a folio
swap: convert swap_writepage() to use a folio
mm: convert do_wp_page() to use a folio
huge_memory: convert do_huge_pmd_wp_page() to use a folio
madvise: convert madvise_free_pte_range() to use a folio
uprobes: use folios more widely in __replace_page()
ksm: use a folio in replace_page()
mm: convert do_swap_page() to use folio_free_swap()
memcg: convert mem_cgroup_swap_full() to take a folio
mm: remove try_to_free_swap()
rmap: convert page_move_anon_rmap() to use a folio
migrate: convert __unmap_and_move() to use folios
migrate: convert unmap_and_move_huge_page() to use folios
huge_memory: convert split_huge_page_to_list() to use a folio
huge_memory: convert unmap_page() to unmap_folio()
mm: convert page_get_anon_vma() to folio_get_anon_vma()
rmap: remove page_unlock_anon_vma_read()
uprobes: use new_folio in __replace_page()
mm: convert lock_page_or_retry() to folio_lock_or_retry()
Matthias Goergens (1):
hugetlb_encode.h: fix undefined behaviour (34 << 26)
Miaohe Lin (50):
hugetlb_cgroup: remove unneeded nr_pages > 0 check
hugetlb_cgroup: hugetlbfs: use helper macro SZ_1{K,M,G}
hugetlb_cgroup: remove unneeded return value
hugetlb_cgroup: use helper macro NUMA_NO_NODE
hugetlb_cgroup: use helper for_each_hstate and hstate_index
mm/hugetlb: fix incorrect update of max_huge_pages
mm/hugetlb: fix WARN_ON(!kobj) in sysfs_create_group()
mm/hugetlb: fix missing call to restore_reserve_on_error()
mm: hugetlb_vmemmap: add missing smp_wmb() before set_pte_at()
mm/hugetlb: fix sysfs group leak in hugetlb_unregister_node()
mm/hugetlb: make detecting shared pte more reliable
mm, hwpoison: fix page refcnt leaking in try_memory_failure_hugetlb()
mm, hwpoison: fix page refcnt leaking in unpoison_memory()
mm, hwpoison: fix extra put_page() in soft_offline_page()
mm, hwpoison: fix possible use-after-free in mf_dax_kill_procs()
mm, hwpoison: kill procs if unmap fails
mm, hwpoison: avoid trying to unpoison reserved page
hugetlb: make hugetlb_cma_check() static
hugetlb: Use helper macro SZ_1K
hugetlb: use LIST_HEAD() to define a list head
hugetlb: use sizeof() to get the array size
hugetlb: use helper {huge_pte|pmd}_lock()
hugetlb: pass NULL to kobj_to_hstate() if nid is unused
hugetlb: kill hugetlbfs_pagecache_page()
hugetlb: add comment for subtle SetHPageVmemmapOptimized()
hugetlb: remove meaningless BUG_ON(huge_pte_none())
hugetlb: make hugetlb depends on SYSFS or SYSCTL
mm, hwpoison: use ClearPageHWPoison() in memory_failure()
mm, hwpoison: use __PageMovable() to detect non-lru movable pages
mm, hwpoison: use num_poisoned_pages_sub() to decrease num_poisoned_pages
mm, hwpoison: avoid unneeded page_mapped_in_vma() overhead in collect_procs_anon()
mm, hwpoison: check PageTable() explicitly in hwpoison_user_mappings()
mm, hwpoison: cleanup some obsolete comments
writeback: remove unused macro DIRTY_FULL_SCOPE
mm/page_alloc: ensure kswapd doesn't accidentally go to sleep
mm/page_alloc: make zone_pcp_update() static
mm: remove obsolete macro NR_PCP_ORDER_MASK and NR_PCP_ORDER_WIDTH
mm/page_alloc: remove obsolete comment in zone_statistics()
mm/page_alloc: add __init annotations to init_mem_debugging_and_hardening()
mm/page_alloc: fix freeing static percpu memory
mm: remove obsolete pgdat_is_empty()
mm/page_alloc: add missing is_migrate_isolate() check in set_page_guard()
mm/page_alloc: use local variable zone_idx directly
mm, memory_hotplug: remove obsolete generic_free_nodedata()
mm/page_alloc: make boot_nodestats static
mm/page_alloc: use helper macro SZ_1{K,M}
mm/page_alloc: init local variable buddy_pfn
mm/page_alloc: use costly_order in WARN_ON_ONCE_GFP()
mm/page_alloc: remove obsolete gfpflags_normal_context()
mm/page_alloc: fix obsolete comment in deferred_pfn_valid()
Michal Hocko (1):
mm: reduce noise in show_mem for lowmem allocations
Mika Penttilä (1):
mm/hmm/test: use char dev with struct device to get device node
Mike Kravetz (13):
hugetlbfs: revert use i_mmap_rwsem to address page fault/truncate race
hugetlbfs: revert use i_mmap_rwsem for more pmd sharing synchronization
hugetlb: rename remove_huge_page to hugetlb_delete_from_page_cache
hugetlb: create remove_inode_single_folio to remove single file folio
hugetlb: rename vma_shareable() and refactor code
hugetlb: add vma based lock for pmd sharing
hugetlb: create hugetlb_unmap_file_folio to unmap single file folio
hugetlb: use new vma_lock for pmd sharing synchronization
hugetlb: clean up code checking for fault/truncation races
hugetlb: freeze allocated pages before creating hugetlb pages
hugetlb: fix vma lock handling during split vma and range unmapping
hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer
hugetlb: allocate vma lock for all sharable vmas
Muchun Song (3):
mm: hugetlb_vmemmap: simplify reset_struct_pages()
mm: hugetlb: simplify per-node sysfs creation and removal
mm: hugetlb: eliminate memory-less nodes handling
Peter Collingbourne (1):
mm: add more BUILD_BUG_ONs to gfp_migratetype()
Peter Xu (7):
mm/x86: use SWP_TYPE_BITS in 3-level swap macros
mm/swap: comment all the ifdef in swapops.h
mm/swap: add swp_offset_pfn() to fetch PFN from swap entry
mm/thp: carry over dirty bit when thp splits on pmd
mm: remember young/dirty bit for page migrations
mm/swap: cache maximum swapfile size when init swap
mm/swap: cache swap migration A/D bits support
Qi Zheng (8):
mm: thp: remove redundant pgtable check in set_huge_zero_page()
mm: introduce common struct mm_slot
mm: thp: convert to use common struct mm_slot
ksm: remove redundant declarations in ksm.h
ksm: add the ksm prefix to the names of the ksm private structures
ksm: convert ksm_mm_slot.mm_list to ksm_mm_slot.mm_node
ksm: convert ksm_mm_slot.link to ksm_mm_slot.hash
ksm: convert to use common struct mm_slot
Ran Xiaokai (1):
mm/page_alloc: update comments for rmqueue()
Rik van Riel (1):
mm: align larger anonymous mappings on THP boundaries
Rolf Eike Beer (2):
mm: pagewalk: fix documentation of PTE hole handling
mm: pagewalk: add api documentation for walk_page_range_novma()
SeongJae Park (29):
selftest/damon: add a test for duplicate context dirs creation
mm/damon/core: avoid holes in newly set monitoring target ranges
mm/damon/core-test: test damon_set_regions
Docs/admin-guide/mm/damon: rename the title of the document
mm/damon/Kconfig: notify debugfs deprecation plan
Docs/admin-guide/mm/damon/start: mention the dependency as sysfs instead of debugfs
Docs/admin-guide/mm/damon/usage: note DAMON debugfs interface deprecation plan
mm/damon/paddr: make supported DAMOS actions of paddr clear
mm/damon/paddr: deduplicate damon_pa_{mark_accessed,deactivate_pages}()
mm/damon/core: copy struct-to-struct instead of field-to-field in damon_new_scheme()
mm/damon/core: factor out 'damos_quota' private fileds initialization
mm/damon/core: use a dedicated struct for monitoring attributes
mm/damon/core: reduce parameters for damon_set_attrs()
mm/damon/reclaim: use 'struct damon_attrs' for storing parameters for it
mm/damon/lru_sort: use 'struct damon_attrs' for storing parameters for it
mm/damon: implement a monitoring attributes module parameters generator macro
mm/damon/lru_sort: use monitoring attributes parameters generaotr macro
mm/damon/reclaim: use monitoring attributes parameters generator macro
mm/damon/modules-common: implement a watermarks module parameters generator macro
mm/damon/lru_sort: use watermarks parameters generator macro
mm/damon/reclaim: use watermarks parameters generator macro
mm/damon/modules-common: implement a stats parameters generator macro
mm/damon/reclaim: use stat parameters generator
mm/damon/lru_sort: use stat generator
mm/damon/modules-common: implement a damos quota params generator
mm/damon/modules-common: implement damos time quota params generator
mm/damon/reclaim: use the quota params generator macro
mm/damon/lru_sort: use quotas param generator
mm/damon/lru_sort: deduplicate hot/cold schemes generators
Sergey Senozhatsky (3):
drivers/block/zram/zram_drv.c: do not keep dangling zcomp pointer after zram reset
zram: do not waste zram_table_entry flags bits
zram: keep comments within 80-columns limit
Shakeel Butt (7):
mm: page_counter: remove unneeded atomic ops for low/min
mm: page_counter: rearrange struct page_counter fields
memcg: increase MEMCG_CHARGE_BATCH to 64
mm: deduplicate cacheline padding code
memcg: extract memcg_vmstats from struct mem_cgroup
memcg: rearrange code
memcg: reduce size of memcg vmstats structures
Shaoqin Huang (1):
mm/filemap.c: convert page_endio() to use a folio
Song Liu (1):
mm/vmalloc: extend find_vmap_lowest_match_check with extra arguments
Suren Baghdasaryan (2):
mm: drop oom code from exit_mmap
mm: delete unused MMF_OOM_VICTIM flag
Tarun Sahu (2):
Kselftests: remove support of libhugetlbfs from kselftests
selftest: vm: remove deleted local_config.* from .gitignore
Vishal Moola (Oracle) (8):
filemap: add filemap_get_folios_contig()
btrfs: convert __process_pages_contig() to use filemap_get_folios_contig()
btrfs: convert end_compressed_writeback() to use filemap_get_folios()
btrfs: convert process_page_range() to use filemap_get_folios_contig()
nilfs2: convert nilfs_find_uncommited_extent() to use filemap_get_folios_contig()
ramfs: convert ramfs_nommu_get_unmapped_area() to use filemap_get_folios_contig()
filemap: remove find_get_pages_contig()
filemap: convert filemap_range_has_writeback() to use folios
XU pengfei (1):
mm/hugetlb: remove unnecessary 'NULL' values from pointer
Xin Hao (8):
mm/damon: simplify damon_ctx check in damon_sysfs_before_terminate
mm/damon: remove duplicate get_monitoring_region() definitions
mm/damon/sysfs: change few functions execute order
mm/damon: simplify scheme create in damon_lru_sort_apply_parameters
mm/damon/sysfs: avoid call damon_target_has_pid() repeatedly
mm/damon: simplify scheme create in lru_sort.c
mm/damon/sysfs: return 'err' value when call kstrtoul() failed
mm/hugetlb: add available_huge_pages() func
Xiu Jianfeng (4):
mm/hwpoison: add __init/__exit annotations to module init/exit funcs
mm/rodata_test: use PAGE_ALIGNED() helper
mm/secretmem: add __init annotation to secretmem_init()
mm/secretmem: remove reduntant return value
Yajun Deng (1):
mm/damon: introduce struct damos_access_pattern
Yang Shi (3):
mm: khugepaged: don't carry huge page to the next loop for !CONFIG_NUMA
mm: memcg: export workingset refault stats for cgroup v1
mm: MADV_COLLAPSE: refetch vm_end after reacquiring mmap_lock
Yang Yang (5):
mm/vmscan: define macros for refaults in struct lruvec
mm/vmscan: make the annotations of refaults code at the right place
filemap: make the accounting of thrashing more consistent
delayacct: support re-entrance detection of thrashing accounting
mm/page_io: count submission time as thrashing delay for delayacct
Yang Yingliang (2):
mm/damon/reclaim: change damon_reclaim_wmarks to static
mm/damon/lru_sort: change damon_lru_sort_wmarks to static
Yin Fengwei (1):
mm: release private data before split THP
Yixuan Cao (1):
tools/vm/page_owner_sort: fix -f option
Yu Zhao (16):
mm: x86, arm64: add arch_has_hw_pte_young()
mm: x86: add CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
mm/vmscan.c: refactor shrink_node()
Revert "include/linux/mm_inline.h: fold __update_lru_size() into its sole caller"
mm: multi-gen LRU: groundwork
mm: multi-gen LRU: minimal implementation
mm: multi-gen LRU: exploit locality in rmap
mm: multi-gen LRU: support page table walks
mm: multi-gen LRU: optimize multiple memcgs
mm: multi-gen LRU: kill switch
mm: multi-gen LRU: thrashing prevention
mm: multi-gen LRU: debugfs interface
mm: multi-gen LRU: admin guide
mm: multi-gen LRU: design doc
mm/mglru: don't sync disk for each aging cycle
mglru: mm/vmscan.c: fix imprecise comments
Zach O'Keefe (27):
mm/khugepaged: add struct collapse_control
mm/khugepaged: dedup and simplify hugepage alloc and charging
mm/khugepaged: propagate enum scan_result codes back to callers
mm/khugepaged: add flag to predicate khugepaged-only behavior
mm/thp: add flag to enforce sysfs THP in hugepage_vma_check()
mm/khugepaged: record SCAN_PMD_MAPPED when scan_pmd() finds hugepage
mm/madvise: introduce MADV_COLLAPSE sync hugepage collapse
mm/khugepaged: rename prefix of shared collapse functions
mm/madvise: add MADV_COLLAPSE to process_madvise()
selftests/vm: modularize collapse selftests
selftests/vm: dedup hugepage allocation logic
selftests/vm: add MADV_COLLAPSE collapse context to selftests
selftests/vm: add selftest to verify recollapse of THPs
selftests/vm: add selftest to verify multi THP collapse
mm/khugepaged: check compound_order() in collapse_pte_mapped_thp()
mm/madvise: MADV_COLLAPSE return EAGAIN when page cannot be isolated
selftests/vm: retry on EAGAIN for MADV_COLLAPSE selftest
mm/shmem: add flag to enforce shmem THP in hugepage_vma_check()
mm/khugepaged: attempt to map file/shmem-backed pte-mapped THPs by pmds
mm/madvise: add file and shmem support to MADV_COLLAPSE
mm/khugepaged: add tracepoint to hpage_collapse_scan_file()
selftests/vm: dedup THP helpers
selftests/vm: modularize thp collapse memory operations
selftests/vm: add thp collapse file and tmpfs testing
selftests/vm: add thp collapse shmem testing
selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd
selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory
Zhang Yi (14):
fs/buffer: remove __breadahead_gfp()
fs/buffer: add some new buffer read helpers
fs/buffer: replace ll_rw_block()
gfs2: replace ll_rw_block()
isofs: replace ll_rw_block()
jbd2: replace ll_rw_block()
ntfs3: replace ll_rw_block()
ocfs2: replace ll_rw_block()
reiserfs: replace ll_rw_block()
udf: replace ll_rw_block()
ufs: replace ll_rw_block()
fs/buffer: remove ll_rw_block() helper
ext2: replace bh_submit_read() helper with bh_read()
fs/buffer: remove bh_submit_read() helper
Zhenhua Huang (1):
mm/page_owner.c: remove redundant drain_all_pages
Zi Yan (1):
arch: mm: rename FORCE_MAX_ZONEORDER to ARCH_FORCE_MAX_ORDER
xu xin (2):
ksm: count allocated ksm rmap_items for each process
ksm: add profit monitoring documentation
xupanda (1):
mm: memcontrol: fix a typo in comment
ye xingchen (1):
mm: backing-dev: Remove the unneeded result variable
ze zuo (1):
mm/mempolicy: use PAGE_ALIGN instead of open-coding it
zezuo (1):
mm/page_alloc.c: delete a redundant parameter of rmqueue_pcplist
.../ABI/testing/sysfs-kernel-mm-memory-tiers | 25 +
Documentation/accounting/delay-accounting.rst | 2 +-
Documentation/admin-guide/cgroup-v1/memory.rst | 4 +-
Documentation/admin-guide/kernel-parameters.txt | 14 +-
Documentation/admin-guide/mm/cma_debugfs.rst | 10 +-
Documentation/admin-guide/mm/damon/index.rst | 6 +-
Documentation/admin-guide/mm/damon/start.rst | 13 +-
Documentation/admin-guide/mm/damon/usage.rst | 5 +
Documentation/admin-guide/mm/index.rst | 1 +
Documentation/admin-guide/mm/ksm.rst | 36 +
Documentation/admin-guide/mm/multigen_lru.rst | 162 +
Documentation/admin-guide/mm/transhuge.rst | 16 +-
Documentation/admin-guide/mm/userfaultfd.rst | 41 +-
Documentation/admin-guide/sysctl/kernel.rst | 11 +
Documentation/admin-guide/sysctl/vm.rst | 3 +
Documentation/core-api/index.rst | 1 +
Documentation/core-api/maple_tree.rst | 217 +
Documentation/core-api/mm-api.rst | 3 -
Documentation/dev-tools/index.rst | 1 +
Documentation/dev-tools/kasan.rst | 17 +-
Documentation/dev-tools/kmsan.rst | 427 +
Documentation/mm/index.rst | 1 +
Documentation/mm/ksm.rst | 2 +-
Documentation/mm/multigen_lru.rst | 159 +
Documentation/mm/page_owner.rst | 5 +
MAINTAINERS | 27 +-
Makefile | 1 +
arch/Kconfig | 8 +
arch/alpha/include/uapi/asm/mman.h | 2 +
arch/arc/Kconfig | 2 +-
arch/arm/Kconfig | 2 +-
arch/arm/configs/imx_v6_v7_defconfig | 2 +-
arch/arm/configs/milbeaut_m10v_defconfig | 2 +-
arch/arm/configs/oxnas_v6_defconfig | 2 +-
arch/arm/configs/pxa_defconfig | 2 +-
arch/arm/configs/sama7_defconfig | 2 +-
arch/arm/configs/sp7021_defconfig | 2 +-
arch/arm64/Kconfig | 2 +-
arch/arm64/include/asm/pgtable.h | 15 +-
arch/arm64/kernel/elfcore.c | 16 +-
arch/arm64/kernel/vdso.c | 3 +-
arch/arm64/mm/hugetlbpage.c | 2 +-
arch/csky/Kconfig | 2 +-
arch/ia64/Kconfig | 2 +-
arch/ia64/include/asm/sparsemem.h | 6 +-
arch/loongarch/Kconfig | 2 +-
arch/m68k/Kconfig.cpu | 2 +-
arch/mips/Kconfig | 2 +-
arch/mips/configs/db1xxx_defconfig | 1 -
arch/mips/configs/generic_defconfig | 1 -
arch/mips/include/uapi/asm/mman.h | 2 +
arch/nios2/Kconfig | 2 +-
arch/parisc/include/uapi/asm/mman.h | 2 +
arch/parisc/kernel/cache.c | 9 +-
arch/powerpc/Kconfig | 2 +-
arch/powerpc/configs/85xx/ge_imp3a_defconfig | 2 +-
arch/powerpc/configs/fsl-emb-nonhw.config | 2 +-
arch/powerpc/configs/powernv_defconfig | 1 -
arch/powerpc/configs/pseries_defconfig | 1 -
arch/powerpc/kernel/vdso.c | 6 +-
arch/powerpc/mm/book3s32/tlb.c | 11 +-
arch/powerpc/mm/book3s64/subpage_prot.c | 13 +-
arch/riscv/kernel/vdso.c | 3 +-
arch/s390/kernel/vdso.c | 3 +-
arch/s390/lib/uaccess.c | 3 +-
arch/s390/mm/gmap.c | 6 +-
arch/s390/mm/hugetlbpage.c | 10 -
arch/sh/configs/ecovec24_defconfig | 2 +-
arch/sh/configs/sdk7786_defconfig | 1 -
arch/sh/configs/urquell_defconfig | 1 -
arch/sh/mm/Kconfig | 2 +-
arch/sparc/Kconfig | 2 +-
arch/um/kernel/tlb.c | 14 +-
arch/x86/Kconfig | 10 +-
arch/x86/boot/Makefile | 1 +
arch/x86/boot/compressed/Makefile | 1 +
arch/x86/entry/vdso/Makefile | 3 +
arch/x86/entry/vdso/vma.c | 9 +-
arch/x86/include/asm/checksum.h | 16 +-
arch/x86/include/asm/kmsan.h | 87 +
arch/x86/include/asm/page_64.h | 7 +
arch/x86/include/asm/pgtable-3level.h | 8 +-
arch/x86/include/asm/pgtable.h | 9 +-
arch/x86/include/asm/pgtable_64_types.h | 47 +-
arch/x86/include/asm/sparsemem.h | 2 +
arch/x86/include/asm/string_64.h | 23 +-
arch/x86/include/asm/uaccess.h | 22 +-
arch/x86/kernel/Makefile | 2 +
arch/x86/kernel/cpu/Makefile | 1 +
arch/x86/kernel/dumpstack.c | 6 +
arch/x86/kernel/process_64.c | 1 +
arch/x86/kernel/tboot.c | 2 +-
arch/x86/kernel/unwind_frame.c | 11 +
arch/x86/lib/Makefile | 2 +
arch/x86/lib/iomem.c | 5 +
arch/x86/mm/Makefile | 5 +
arch/x86/mm/fault.c | 23 +-
arch/x86/mm/init.c | 2 +-
arch/x86/mm/init_64.c | 2 +-
arch/x86/mm/ioremap.c | 3 +
arch/x86/mm/kmsan_shadow.c | 20 +
arch/x86/mm/pgtable.c | 5 +-
arch/x86/realmode/rm/Makefile | 1 +
arch/xtensa/Kconfig | 2 +-
arch/xtensa/include/uapi/asm/mman.h | 2 +
arch/xtensa/kernel/syscall.c | 18 +-
block/bio.c | 2 +
block/blk.h | 7 +
crypto/Kconfig | 30 +
drivers/base/memory.c | 6 -
drivers/base/node.c | 141 +-
drivers/block/zram/zram_drv.c | 38 +-
drivers/block/zram/zram_drv.h | 15 +-
drivers/dax/kmem.c | 42 +-
drivers/firmware/efi/efi.c | 2 +-
drivers/firmware/efi/libstub/Makefile | 1 +
drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 14 +-
drivers/input/serio/libps2.c | 5 +-
drivers/misc/cxl/fault.c | 45 +-
drivers/net/Kconfig | 1 +
drivers/nvdimm/nd.h | 2 +-
drivers/nvdimm/pfn_devs.c | 2 +-
drivers/tee/optee/call.c | 18 +-
drivers/usb/core/urb.c | 2 +
drivers/virtio/virtio_ring.c | 10 +-
drivers/xen/privcmd.c | 2 +-
fs/Kconfig | 1 +
fs/btrfs/compression.c | 31 +-
fs/btrfs/extent_io.c | 33 +-
fs/btrfs/subpage.c | 2 +-
fs/btrfs/tests/extent-io-tests.c | 32 +-
fs/buffer.c | 158 +-
fs/coredump.c | 34 +-
fs/exec.c | 14 +-
fs/ext2/balloc.c | 7 +-
fs/fuse/dev.c | 3 +-
fs/gfs2/meta_io.c | 7 +-
fs/gfs2/quota.c | 8 +-
fs/hugetlbfs/inode.c | 300 +-
fs/isofs/compress.c | 2 +-
fs/jbd2/journal.c | 15 +-
fs/jbd2/recovery.c | 16 +-
fs/namei.c | 2 +-
fs/nilfs2/page.c | 45 +-
fs/ntfs3/inode.c | 7 +-
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/super.c | 4 +-
fs/posix_acl.c | 3 +
fs/proc/base.c | 20 +-
fs/proc/internal.h | 2 +-
fs/proc/task_mmu.c | 96 +-
fs/proc/task_nommu.c | 45 +-
fs/ramfs/file-nommu.c | 50 +-
fs/reiserfs/journal.c | 11 +-
fs/reiserfs/stree.c | 4 +-
fs/reiserfs/super.c | 4 +-
fs/udf/dir.c | 2 +-
fs/udf/directory.c | 2 +-
fs/udf/inode.c | 8 +-
fs/ufs/balloc.c | 12 +-
fs/userfaultfd.c | 133 +-
include/asm-generic/cacheflush.h | 14 +-
include/linux/buffer_head.h | 48 +-
include/linux/cache.h | 13 +
include/linux/cgroup.h | 15 +-
include/linux/compiler-clang.h | 23 +
include/linux/compiler-gcc.h | 6 +
include/linux/compiler_types.h | 3 +-
include/linux/damon.h | 86 +-
include/linux/delayacct.h | 16 +-
include/linux/fortify-string.h | 2 +
include/linux/gfp.h | 26 +-
include/linux/highmem.h | 3 +
include/linux/huge_mm.h | 28 +-
include/linux/hugetlb.h | 63 +-
include/linux/hugetlb_cgroup.h | 19 +-
include/linux/instrumented.h | 59 +-
include/linux/kasan.h | 55 +-
include/linux/khugepaged.h | 13 +-
include/linux/kmsan-checks.h | 83 +
include/linux/kmsan.h | 330 +
include/linux/kmsan_types.h | 35 +
include/linux/ksm.h | 3 -
include/linux/maple_tree.h | 685 +
include/linux/memcontrol.h | 99 +-
include/linux/memory-tiers.h | 102 +
include/linux/memory_hotplug.h | 30 +-
include/linux/mempolicy.h | 13 +-
include/linux/migrate.h | 15 -
include/linux/mm.h | 161 +-
include/linux/mm_inline.h | 242 +-
include/linux/mm_types.h | 178 +-
include/linux/mm_types_task.h | 12 -
include/linux/mmzone.h | 281 +-
include/linux/node.h | 29 +-
include/linux/nodemask.h | 16 +-
include/linux/oom.h | 11 -
include/linux/page-flags-layout.h | 16 +-
include/linux/page-flags.h | 4 +-
include/linux/page_counter.h | 26 +-
include/linux/page_ext.h | 24 +-
include/linux/page_idle.h | 34 +-
include/linux/pageblock-flags.h | 4 +
include/linux/pagemap.h | 14 +-
include/linux/pagewalk.h | 10 +-
include/linux/pgtable.h | 26 +-
include/linux/rmap.h | 73 +-
include/linux/sched.h | 14 +-
include/linux/sched/coredump.h | 7 +-
include/linux/sched/sysctl.h | 1 +
include/linux/shmem_fs.h | 16 +-
include/linux/slab.h | 8 +-
include/linux/stackdepot.h | 8 +
include/linux/swap.h | 41 +-
include/linux/swap_cgroup.h | 4 +-
include/linux/swapfile.h | 7 +-
include/linux/swapops.h | 150 +-
include/linux/uaccess.h | 19 +-
include/linux/userfaultfd_k.h | 7 +-
include/linux/vm_event_item.h | 4 -
include/linux/vmacache.h | 28 -
include/linux/vmstat.h | 6 -
include/linux/writeback.h | 8 -
include/trace/events/huge_memory.h | 37 +
include/trace/events/maple_tree.h | 123 +
include/trace/events/mmap.h | 73 +
include/uapi/asm-generic/hugetlb_encode.h | 26 +-
include/uapi/asm-generic/mman-common.h | 2 +
include/uapi/linux/userfaultfd.h | 4 +
init/Kconfig | 5 -
init/main.c | 11 +-
ipc/shm.c | 21 +-
kernel/Makefile | 1 +
kernel/acct.c | 11 +-
kernel/bounds.c | 7 +
kernel/bpf/core.c | 2 +-
kernel/bpf/task_iter.c | 10 +-
kernel/cgroup/cgroup-internal.h | 1 -
kernel/debug/debug_core.c | 12 -
kernel/delayacct.c | 13 +-
kernel/dma/mapping.c | 10 +-
kernel/entry/common.c | 5 +
kernel/events/core.c | 3 +-
kernel/events/uprobes.c | 39 +-
kernel/exit.c | 3 +
kernel/fork.c | 79 +-
kernel/kcov.c | 7 +
kernel/locking/Makefile | 3 +-
kernel/sched/core.c | 15 +
kernel/sched/debug.c | 1 +
kernel/sched/fair.c | 175 +-
kernel/sched/sched.h | 1 +
kernel/sysctl.c | 8 +
lib/Kconfig.debug | 18 +-
lib/Kconfig.kasan | 8 -
lib/Kconfig.kmsan | 62 +
lib/Makefile | 10 +-
lib/iomap.c | 44 +
lib/iov_iter.c | 9 +-
lib/maple_tree.c | 7130 ++++
lib/show_mem.c | 4 +-
lib/stackdepot.c | 29 +-
lib/string.c | 8 +
lib/test_hmm.c | 13 +-
lib/test_maple_tree.c | 38307 +++++++++++++++++++
lib/usercopy.c | 3 +-
mm/Kconfig | 34 +-
mm/Makefile | 8 +-
mm/backing-dev.c | 6 +-
mm/cma_debug.c | 5 +-
mm/compaction.c | 24 +-
mm/damon/Kconfig | 3 +
mm/damon/core-test.h | 29 +-
mm/damon/core.c | 281 +-
mm/damon/dbgfs.c | 52 +-
mm/damon/lru_sort.c | 380 +-
mm/damon/modules-common.h | 46 +
mm/damon/ops-common.c | 50 +-
mm/damon/ops-common.h | 2 +-
mm/damon/paddr.c | 43 +-
mm/damon/reclaim.c | 289 +-
mm/damon/sysfs.c | 143 +-
mm/damon/vaddr-test.h | 36 +-
mm/damon/vaddr.c | 102 +-
mm/debug.c | 14 +-
mm/filemap.c | 124 +-
mm/folio-compat.c | 6 +
mm/gup.c | 248 +-
mm/hmm.c | 2 +-
mm/huge_memory.c | 205 +-
mm/hugetlb.c | 792 +-
mm/hugetlb_cgroup.c | 27 +-
mm/hugetlb_vmemmap.c | 10 +-
mm/hwpoison-inject.c | 4 +-
mm/init-mm.c | 4 +-
mm/internal.h | 48 +-
mm/kasan/Makefile | 8 +
mm/kasan/common.c | 177 +-
mm/kasan/generic.c | 154 +-
mm/kasan/hw_tags.c | 39 +-
mm/kasan/kasan.h | 171 +-
lib/test_kasan.c => mm/kasan/kasan_test.c | 26 +-
.../kasan/kasan_test_module.c | 2 +-
mm/kasan/report.c | 138 +-
mm/kasan/report_generic.c | 46 +-
mm/kasan/report_tags.c | 123 +-
mm/kasan/sw_tags.c | 5 +-
mm/kasan/tags.c | 143 +-
mm/kfence/core.c | 22 +-
mm/khugepaged.c | 1168 +-
mm/kmemleak.c | 21 +-
mm/kmsan/Makefile | 28 +
mm/kmsan/core.c | 450 +
mm/kmsan/hooks.c | 384 +
mm/kmsan/init.c | 235 +
mm/kmsan/instrumentation.c | 307 +
mm/kmsan/kmsan.h | 209 +
mm/kmsan/kmsan_test.c | 581 +
mm/kmsan/report.c | 219 +
mm/kmsan/shadow.c | 298 +
mm/ksm.c | 375 +-
mm/madvise.c | 60 +-
mm/memblock.c | 6 +-
mm/memcontrol.c | 281 +-
mm/memory-failure.c | 126 +-
mm/memory-tiers.c | 732 +
mm/memory.c | 274 +-
mm/memory_hotplug.c | 11 +-
mm/mempolicy.c | 66 +-
mm/memremap.c | 2 +-
mm/migrate.c | 651 +-
mm/migrate_device.c | 19 +-
mm/mlock.c | 37 +-
mm/mm_init.c | 6 +-
mm/mm_slot.h | 55 +
mm/mmap.c | 2259 +-
mm/mmzone.c | 2 +
mm/mprotect.c | 17 +-
mm/mremap.c | 41 +-
mm/msync.c | 2 +-
mm/nommu.c | 260 +-
mm/oom_kill.c | 11 +-
mm/page_alloc.c | 196 +-
mm/page_counter.c | 15 +-
mm/page_ext.c | 117 +-
mm/page_io.c | 43 +-
mm/page_isolation.c | 17 +-
mm/page_owner.c | 103 +-
mm/page_table_check.c | 14 +-
mm/page_vma_mapped.c | 6 +-
mm/pagewalk.c | 12 +-
mm/rmap.c | 184 +-
mm/rodata_test.c | 8 +-
mm/secretmem.c | 8 +-
mm/shmem.c | 429 +-
mm/shuffle.c | 21 +-
mm/slab.h | 1 +
mm/slub.c | 43 +
mm/swap.c | 73 +-
mm/swap.h | 18 +-
mm/swap_cgroup.c | 6 +
mm/swap_slots.c | 2 +-
mm/swap_state.c | 111 +-
mm/swapfile.c | 178 +-
mm/truncate.c | 2 +-
mm/userfaultfd.c | 28 +-
mm/util.c | 36 +-
mm/vmacache.c | 117 -
mm/vmalloc.c | 35 +-
mm/vmscan.c | 3556 +-
mm/vmstat.c | 9 +-
mm/workingset.c | 110 +-
mm/zsmalloc.c | 22 +-
mm/zswap.c | 2 +-
scripts/Makefile.kmsan | 8 +
scripts/Makefile.lib | 9 +
security/Kconfig.hardening | 4 +
tools/include/asm-generic/hugetlb_encode.h | 26 +-
tools/include/linux/slab.h | 4 +
tools/include/uapi/asm-generic/mman-common.h | 2 +
tools/objtool/check.c | 20 +
tools/testing/memblock/linux/mmzone.h | 2 +
tools/testing/radix-tree/.gitignore | 2 +
tools/testing/radix-tree/Makefile | 9 +-
tools/testing/radix-tree/generated/autoconf.h | 1 +
tools/testing/radix-tree/linux.c | 160 +-
tools/testing/radix-tree/linux/kernel.h | 1 +
tools/testing/radix-tree/linux/lockdep.h | 2 +
tools/testing/radix-tree/linux/maple_tree.h | 7 +
tools/testing/radix-tree/maple.c | 59 +
tools/testing/radix-tree/trace/events/maple_tree.h | 5 +
tools/testing/selftests/cgroup/config | 1 -
tools/testing/selftests/damon/Makefile | 1 +
.../damon/debugfs_duplicate_context_creation.sh | 27 +
tools/testing/selftests/vm/.gitignore | 1 -
tools/testing/selftests/vm/Makefile | 23 +-
tools/testing/selftests/vm/check_config.sh | 31 -
tools/testing/selftests/vm/hmm-tests.c | 108 +-
tools/testing/selftests/vm/khugepaged.c | 1195 +-
tools/testing/selftests/vm/mremap_test.c | 49 +-
tools/testing/selftests/vm/run_vmtests.sh | 15 +-
tools/testing/selftests/vm/soft-dirty.c | 2 +-
tools/testing/selftests/vm/split_huge_page_test.c | 12 +-
tools/testing/selftests/vm/test_hmm.sh | 10 -
tools/testing/selftests/vm/userfaultfd.c | 247 +-
tools/testing/selftests/vm/vm_util.c | 36 +-
tools/testing/selftests/vm/vm_util.h | 5 +-
tools/vm/page_owner_sort.c | 7 +-
408 files changed, 65821 insertions(+), 8035 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
create mode 100644 Documentation/admin-guide/mm/multigen_lru.rst
create mode 100644 Documentation/core-api/maple_tree.rst
create mode 100644 Documentation/dev-tools/kmsan.rst
create mode 100644 Documentation/mm/multigen_lru.rst
create mode 100644 arch/x86/include/asm/kmsan.h
create mode 100644 arch/x86/mm/kmsan_shadow.c
create mode 100644 include/linux/kmsan-checks.h
create mode 100644 include/linux/kmsan.h
create mode 100644 include/linux/kmsan_types.h
create mode 100644 include/linux/maple_tree.h
create mode 100644 include/linux/memory-tiers.h
delete mode 100644 include/linux/vmacache.h
create mode 100644 include/trace/events/maple_tree.h
create mode 100644 lib/Kconfig.kmsan
create mode 100644 lib/maple_tree.c
create mode 100644 lib/test_maple_tree.c
create mode 100644 mm/damon/modules-common.h
rename lib/test_kasan.c => mm/kasan/kasan_test.c (98%)
rename lib/test_kasan_module.c => mm/kasan/kasan_test_module.c (99%)
create mode 100644 mm/kmsan/Makefile
create mode 100644 mm/kmsan/core.c
create mode 100644 mm/kmsan/hooks.c
create mode 100644 mm/kmsan/init.c
create mode 100644 mm/kmsan/instrumentation.c
create mode 100644 mm/kmsan/kmsan.h
create mode 100644 mm/kmsan/kmsan_test.c
create mode 100644 mm/kmsan/report.c
create mode 100644 mm/kmsan/shadow.c
create mode 100644 mm/memory-tiers.c
create mode 100644 mm/mm_slot.h
delete mode 100644 mm/vmacache.c
create mode 100644 scripts/Makefile.kmsan
create mode 100644 tools/testing/radix-tree/linux/maple_tree.h
create mode 100644 tools/testing/radix-tree/maple.c
create mode 100644 tools/testing/radix-tree/trace/events/maple_tree.h
create mode 100644 tools/testing/selftests/damon/debugfs_duplicate_context_creation.sh
delete mode 100644 tools/testing/selftests/vm/check_config.sh
The pull request you sent on Sat, 8 Oct 2022 13:21:13 -0700:
> https://lkml.kernel.org/r/[email protected] Thanks.
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/27bc50fc90647bbf7b734c3fc306a5e61350da53
Thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/prtracker.html
On Sat, Oct 8, 2022 at 1:21 PM Andrew Morton <[email protected]> wrote:
>
> Alexander Potapenko (43):
> crypto: kmsan: disable accelerated configs under KMSAN
Ok, so this conflicted pretty badly with the crypto tree having
re-organized their Kconfig files.
I channelled my inner Alexander the Great, and just cut the whole
thing through by disabling all the architecture-accelerated crypto
includes when KMSAN was enabled.
But that's very different from your tree that disabled the options
individually, so some KMSAN person should probably look around at it
and decide whether some more subtle approach is called for.
The other thing I notice from just doing a build is that I now get
vmlinux.o: warning: objtool: kasan_report+0x12: call to
stackleak_track_stack() with UACCESS enabled
which may just be a "need to teach objtool this is ok", but I'm not
seeing why it's now starting to happen. Maybe just code generation
changed for some reason, or maybe it's just that config options ended
up changing enough to expose this on my allmodconfig builds.
Cc'ing people who may know better.
This is just my reaction from doing the merge and test-build. There
may or may not be more commentary once I've actually tried to boot
into this thing.
Linus
On Mon, Oct 10, 2022 at 06:20:00PM -0700, Linus Torvalds wrote:
> The other thing I notice from just doing a build is that I now get
>
> vmlinux.o: warning: objtool: kasan_report+0x12: call to
> stackleak_track_stack() with UACCESS enabled
So kasan_report() is already marked as being special; and it does the
mandatory user_access_save() / user_access_restore() things to fix it
up.
But it looks like kasan code itself is now getting instrumented by the
stackleak stuff and that inserts a call outside of the
user_access_save()/restore() thing, and *that* is getting flagged.
Looking at mm/kasan/Makefile it disables a lot of the instrumentation,
but perhaps not enough?
I've not yet tried to reproduce, I'm taking this is allyesconfig or
something glorious like that? LLVM-15 ?
On Tue, Oct 11, 2022 at 3:20 AM Linus Torvalds
<[email protected]> wrote:
>
> On Sat, Oct 8, 2022 at 1:21 PM Andrew Morton <[email protected]> wrote:
> >
> > Alexander Potapenko (43):
> > crypto: kmsan: disable accelerated configs under KMSAN
>
> Ok, so this conflicted pretty badly with the crypto tree having
> re-organized their Kconfig files.
Sorry about that. There was a fix for this problem:
https://lore.kernel.org/lkml/[email protected]/,
but I am not sure where it ended up, given that crypto tree didn't
have KMSAN, and -mm didn't have the crypto changes.
> I channelled my inner Alexander the Great, and just cut the whole
> thing through by disabling all the architecture-accelerated crypto
> includes when KMSAN was enabled.
That's exactly the point. Thanks for doing that!
> But that's very different from your tree that disabled the options
> individually, so some KMSAN person should probably look around at it
> and decide whether some more subtle approach is called for.
No, in fact it was pretty painful to disable the configs one by one.
Thankfully, the new Kconfig layout simplifies the things for us.
> The other thing I notice from just doing a build is that I now get
>
> vmlinux.o: warning: objtool: kasan_report+0x12: call to
> stackleak_track_stack() with UACCESS enabled
Guess that's unrelated to KMSAN. Happy to take a look anyway.
> which may just be a "need to teach objtool this is ok", but I'm not
> seeing why it's now starting to happen. Maybe just code generation
> changed for some reason, or maybe it's just that config options ended
> up changing enough to expose this on my allmodconfig builds.
>
> Cc'ing people who may know better.
>
> This is just my reaction from doing the merge and test-build. There
> may or may not be more commentary once I've actually tried to boot
> into this thing.
>
> Linus
Small nit:
- Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses
clang-generated instrumentation to detect used-unintialized bugs down
to the single bit level.
s/Dmitry Vyukov/Alexander Potapenko/ ;)
(although contributions of Dmitry Vyukov and Marco Elver to the whole
thing cannot be underestimated!).
--
Alexander Potapenko
Software Engineer
Google Germany GmbH
Erika-Mann-Straße, 33
80636 München
Geschäftsführer: Paul Manicle, Liana Sebastian
Registergericht und -nummer: Hamburg, HRB 86891
Sitz der Gesellschaft: Hamburg
On Tue, Oct 11, 2022 at 1:24 AM Peter Zijlstra <[email protected]> wrote:
>
> I've not yet tried to reproduce, I'm taking this is allyesconfig or
> something glorious like that? LLVM-15 ?
Just a bog-standard allmodconfig build with gcc 12.2.1 as packaged by Fedora.
Linus
On Tue, Oct 11, 2022 at 2:03 AM Alexander Potapenko <[email protected]> wrote:
>
> Small nit:
>
> - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses
> clang-generated instrumentation to detect used-unintialized bugs down
> to the single bit level.
>
> s/Dmitry Vyukov/Alexander Potapenko/ ;)
Uhhuh. I just took what Andrew told me for the commit message, so we
have that error in the history now.
Then when I reported my conflict resolution, at that point I actually
looked at the commit that introduced it, which is why I cc'd you.
So you got all the blame, and none of the glory. Sorry about that,
Linus
On Tue, Oct 11, 2022 at 10:24:27AM +0200, Peter Zijlstra wrote:
> On Mon, Oct 10, 2022 at 06:20:00PM -0700, Linus Torvalds wrote:
> > The other thing I notice from just doing a build is that I now get
> >
> > vmlinux.o: warning: objtool: kasan_report+0x12: call to
> > stackleak_track_stack() with UACCESS enabled
>
> So kasan_report() is already marked as being special; and it does the
> mandatory user_access_save() / user_access_restore() things to fix it
> up.
>
> But it looks like kasan code itself is now getting instrumented by the
> stackleak stuff and that inserts a call outside of the
> user_access_save()/restore() thing, and *that* is getting flagged.
>
> Looking at mm/kasan/Makefile it disables a lot of the instrumentation,
> but perhaps not enough?
I can recreate, but weirdly the below doesn't seem to fix it.
diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index d4837bff3b60..a41cf1235032 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
KASAN_SANITIZE := n
+KMSAN_SANITIZE := n
UBSAN_SANITIZE := n
KCOV_INSTRUMENT := n
On Tue, Oct 11, 2022 at 11:44:46AM -0700, Josh Poimboeuf wrote:
> On Tue, Oct 11, 2022 at 10:24:27AM +0200, Peter Zijlstra wrote:
> > On Mon, Oct 10, 2022 at 06:20:00PM -0700, Linus Torvalds wrote:
> > > The other thing I notice from just doing a build is that I now get
> > >
> > > vmlinux.o: warning: objtool: kasan_report+0x12: call to
> > > stackleak_track_stack() with UACCESS enabled
> >
> > So kasan_report() is already marked as being special; and it does the
> > mandatory user_access_save() / user_access_restore() things to fix it
> > up.
> >
> > But it looks like kasan code itself is now getting instrumented by the
> > stackleak stuff and that inserts a call outside of the
> > user_access_save()/restore() thing, and *that* is getting flagged.
> >
> > Looking at mm/kasan/Makefile it disables a lot of the instrumentation,
> > but perhaps not enough?
>
> I can recreate, but weirdly the below doesn't seem to fix it.
Duh, because kmsan != stackleak, obviously...
>
> diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
> index d4837bff3b60..a41cf1235032 100644
> --- a/mm/kasan/Makefile
> +++ b/mm/kasan/Makefile
> @@ -1,5 +1,6 @@
> # SPDX-License-Identifier: GPL-2.0
> KASAN_SANITIZE := n
> +KMSAN_SANITIZE := n
> UBSAN_SANITIZE := n
> KCOV_INSTRUMENT := n
>
>
--
Josh
kasan_report() has a uaccess critical section which can't have any
instrumentation calls in the middle. Disable the stackleak plugin for
the report code.
Fixes the following warning:
vmlinux.o: warning: objtool: kasan_report+0x12: call to stackleak_track_stack() with UACCESS enabled
Reported-by: Linus Torvalds <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
---
mm/kasan/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index d4837bff3b60..da2976365197 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -27,7 +27,7 @@ CFLAGS_common.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_generic.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_init.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_quarantine.o := $(CC_FLAGS_KASAN_RUNTIME)
-CFLAGS_report.o := $(CC_FLAGS_KASAN_RUNTIME)
+CFLAGS_report.o := $(CC_FLAGS_KASAN_RUNTIME) $(DISABLE_STACKLEAK_PLUGIN)
CFLAGS_report_generic.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_report_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_report_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
--
2.37.3
On Tue, Oct 11, 2022 at 12:05 PM Josh Poimboeuf <[email protected]> wrote:
>
> kasan_report() has a uaccess critical section which can't have any
> instrumentation calls in the middle. Disable the stackleak plugin for
> the report code.
I see Andrew already picked this up, but I can confirm that it
obviously fixes the problem here for me.
I'll get it the usual channels from Andrew.
Thanks,
Linus