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08d36b191f337dac643ec3365cc5d2e56c9f2d64
linux/mm
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Guopeng Zhang 08d36b191f mm: memcg-v1: make mem_cgroup_oom_notify_cb() return void 
Commit 7d74b06f24 ("memcg: use for_each_mem_cgroup") replaced the
mem_cgroup_walk_tree() call in mem_cgroup_oom_notify() with
for_each_mem_cgroup_tree(), but left mem_cgroup_oom_notify_cb() with the
int return type required by the old callback interface.

The function now has a single direct caller and no failure path.  Make it
return void.

Link: https://lore.kernel.org/20260713093737.3299646-1-guopeng.zhang@linux.dev
Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Reviewed-by: SJ Park <sj@kernel.org>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-06 18:56:55 -07:00
..
damon
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
kasan
mm/kasan: remove redundant initialization for kasan_flag_write_only
2026-07-28 21:11:44 -07:00
kfence
Merge tag 'slab-for-7.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
2026-06-22 08:28:48 -07:00
kmsan
mm: split out vmalloc declarations from internal.h
2026-08-04 19:18:46 -07:00
tests
sparc/mm: export symbols for lazy_mmu_mode KUnit tests
2026-01-31 14:22:40 -08:00
alloc_tag.c
mm: replace __GFP_NO_CODETAG with ALLOC_NO_CODETAG
2026-07-30 19:40:44 -07:00
backing-dev.c
mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()
2026-04-18 23:24:27 -07:00
balloon.c
mm: rename CONFIG_BALLOON_COMPACTION to CONFIG_BALLOON_MIGRATION
2026-01-31 14:22:36 -08:00
bpf_memcontrol.c
bpf: Revert "bpf: drop KF_ACQUIRE flag on BPF kfunc bpf_get_root_mem_cgroup()"
2026-01-21 09:38:16 -08:00
cma_debug.c
mm/cma_debug: fix invalid accesses for inactive CMA areas
2026-05-28 20:50:33 -07:00
cma_sysfs.c
mm/cma_sysfs: skip inactive CMA areas in sysfs
2026-06-03 16:25:49 -07:00
cma.c
mm: split out mm_init and memblock declarations from internal.h
2026-08-04 19:18:45 -07:00
cma.h
…
compaction.c
mm/compaction: stop recording free page order in page->private
2026-08-04 19:18:32 -07:00
debug_page_alloc.c
…
debug_page_ref.c
…
debug_vm_pgtable.c
mm: decouple protnone helpers from CONFIG_NUMA_BALANCING
2026-08-04 19:18:36 -07:00
debug.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
dmapool_test.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
dmapool.c
…
early_ioremap.c
mm/early_ioremap: clean up the use of WARN() for debugging
2026-01-26 20:02:26 -08:00
execmem.c
mm: split out vmalloc declarations from internal.h
2026-08-04 19:18:46 -07:00
fadvise.c
mm/fadvise: validate offset in generic_fadvise
2026-04-05 13:52:53 -07:00
fail_page_alloc.c
…
failslab.c
…
filemap.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
folio-compat.c
mm: add SPDX id lines to some mm source files
2026-02-06 15:47:16 -08:00
folio.c
mm: rename swap.c to folio.c
2026-08-04 19:18:35 -07:00
gup_test.c
mm/gup_test: reject wrapped user ranges
2026-06-21 11:37:37 -07:00
gup_test.h
…
gup.c
mm/gup: fix GUP-fast fallback for NULL-mapping order-0 folios
2026-08-04 19:18:48 -07:00
highmem.c
mm/highmem: fix __kmap_to_page() build error
2026-01-31 14:22:38 -08:00
hmm.c
mm/hmm: add hmm_range_fault_unlocked_timeout() for mmap lock-drop support
2026-08-04 19:18:54 -07:00
huge_memory.c
mm/huge_memory: skip device-private PMDs in madvise_free_huge_pmd
2026-08-04 19:19:05 -07:00
hugetlb_cgroup.c
Convert 'alloc_flex' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
hugetlb_cma.c
mm/hugetlb: remove unused bootmem cma field
2026-07-28 21:12:00 -07:00
hugetlb_cma.h
mm/hugetlb: refactor early boot gigantic hugepage allocation
2026-07-28 21:11:59 -07:00
hugetlb_internal.h
mm/hugetlb: extract sysctl into hugetlb_sysctl.c
2025-11-20 13:43:57 -08:00
hugetlb_sysctl.c
mm, hugetlb: implement movable_gigantic_pages sysctl
2026-01-20 19:24:50 -08:00
hugetlb_sysfs.c
mm/hugetlb: extract sysfs into hugetlb_sysfs.c
2025-11-20 13:43:57 -08:00
hugetlb_vmemmap.c
mm/hugetlb_vmemmap: remove bootmem_info leftovers
2026-08-04 19:18:42 -07:00
hugetlb_vmemmap.h
mm/sparse-vmemmap: remove sparse_vmemmap_init_nid_late()
2026-07-28 21:12:00 -07:00
hugetlb.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
hwpoison-inject.c
mm/hwpoison: decouple hwpoison_filter from mm/memory-failure.c
2025-09-21 14:22:21 -07:00
init-mm.c
exec_state: relocate dumpable information
2026-05-26 11:02:01 +02:00
internal.h
mm/vma: make vma_set_range() static, drop insert_vm_struct() decl
2026-08-04 19:19:02 -07:00
interval_tree.c
mm/rmap: rename anon_vma_interval_tree_*() to anon_rmap_tree_*()
2026-08-04 19:18:58 -07:00
ioremap.c
…
Kconfig
mm/hmm: make CONFIG_HMM_MIRROR select CONFIG_MMU_NOTIFIER
2026-08-04 19:18:53 -07:00
Kconfig.debug
mm: move alloc tag to mm
2026-07-28 21:12:03 -07:00
khugepaged.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
kmemleak.c
mm/kmemleak: skip the remaining scan phases when interrupted
2026-07-28 21:12:01 -07:00
ksm.c
mm/rmap: rename anon_vma_interval_tree_*() to anon_rmap_tree_*()
2026-08-04 19:18:58 -07:00
list_lru.c
Merge tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2026-06-19 10:14:34 -07:00
maccess.c
mm: unexport globally copy_to_kernel_nofault
2025-07-09 22:42:22 -07:00
madvise.c
mm/madvise: skip device-private PMDs in cold and pageout walks
2026-08-04 19:19:05 -07:00
Makefile
mm/bootmem_info: remove CONFIG_HAVE_BOOTMEM_INFO_NODE
2026-08-04 19:18:42 -07:00
mapping_dirty_helpers.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
memblock.c
mm: split out mm_init and memblock declarations from internal.h
2026-08-04 19:18:45 -07:00
memcontrol-v1.c
mm: memcg-v1: make mem_cgroup_oom_notify_cb() return void
2026-08-06 18:56:55 -07:00
memcontrol-v1.h
Merge branch 'mm-hotfixes-stable' into mm-stable in order to pick up
2026-08-04 19:15:12 -07:00
memcontrol.c
mm: memcontrol: factor out memcg kmem uncharge sequence
2026-08-06 18:56:55 -07:00
memfd_luo.c
mm/memfd_luo: document preservation of file seals
2026-05-04 14:03:16 +00:00
memfd.c
mm: move reclaim-internal declarations out of swap.h
2026-08-04 19:18:35 -07:00
memory_hotplug.c
mm: split out mm_init and memblock declarations from internal.h
2026-08-04 19:18:45 -07:00
memory-failure.c
mm/rmap: rename anon_vma_interval_tree_*() to anon_rmap_tree_*()
2026-08-04 19:18:58 -07:00
memory-tiers.c
mm: introduce CONFIG_NUMA_MIGRATION and simplify CONFIG_MIGRATION
2026-04-05 13:53:33 -07:00
memory.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
mempolicy.c
mm/mempolicy: skip non-present PMDs when queueing folios
2026-08-04 19:19:05 -07:00
mempool.c
mm: simplify the mempool_alloc_bulk API
2026-06-03 18:20:47 +02:00
memremap.c
mm: decrement MTHP_STAT_NR_ANON in free_zone_device_folio()
2026-07-28 17:37:31 -07:00
memtest.c
mm/memtest: add underflow detection for size calculation
2026-01-09 11:53:51 +02:00
migrate_device.c
mm: rename uffd-wp PTE accessors to uffd
2026-08-04 19:18:36 -07:00
migrate.c
mm: preserve RWP marker across PTE rewrites
2026-08-04 19:18:37 -07:00
mincore.c
mm: mincore: use walk_page_range_vma() in do_mincore()
2026-07-28 21:11:52 -07:00
mlock.c
mm: mlock: use walk_page_range_vma() in mlock_vma_pages_range()
2026-07-28 21:11:52 -07:00
mm_init.c
mm: split out vmalloc declarations from internal.h
2026-08-04 19:18:46 -07:00
mm_init.h
mm: split out mm_init and memblock declarations from internal.h
2026-08-04 19:18:45 -07:00
mm_slot.h
…
mmap_lock.c
mm/vma: improve and document __is_vma_write_locked()
2026-01-31 14:22:51 -08:00
mmap.c
mm/vma: move __install_special_mapping() to vma.c
2026-08-04 19:19:02 -07:00
mmu_gather.c
mm/mmu_gather: replace IPI with synchronize_rcu() when batch allocation fails
2026-04-05 13:53:05 -07:00
mmu_notifier.c
mm/vma: correct incorrect vma.h inclusion
2026-08-04 19:19:04 -07:00
mmzone.c
mm: constify oom_control, scan_control, and alloc_context nodemask
2026-07-28 21:12:04 -07:00
mprotect.c
mm: preserve RWP marker across PTE rewrites
2026-08-04 19:18:37 -07:00
mremap.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
mseal.c
mm/mseal: use min/max in mseal_apply
2026-06-02 15:22:15 -07:00
msync.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
nommu.c
mm/vma: correct incorrect vma.h inclusion
2026-08-04 19:19:04 -07:00
numa_emulation.c
mm/fake-numa: fix under-allocation detection in uniform split
2026-06-02 08:34:03 +03:00
numa_memblks.c
Merge tag 'fixes-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
2026-02-21 09:58:22 -08:00
numa.c
…
oom_kill.c
mm/oom_kill.c: simpilfy rcu call with guard(rcu)
2026-04-05 13:53:17 -07:00
page_alloc.c
mm: split out mm_init and memblock declarations from internal.h
2026-08-04 19:18:45 -07:00
page_alloc.h
mm: replace __GFP_NO_CODETAG with ALLOC_NO_CODETAG
2026-07-30 19:40:44 -07:00
page_counter.c
…
page_ext.c
mm/page_ext: Add page_ext_get_from_phys()
2026-01-21 12:51:48 +01:00
page_frag_cache.c
mm: replace __GFP_NO_CODETAG with ALLOC_NO_CODETAG
2026-07-30 19:40:44 -07:00
page_idle.c
mm/page_idle.c: remove redundant mmu notifier in aging code
2026-04-05 13:53:02 -07:00
page_io.c
Merge tag 'block-7.2-20260625' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
2026-06-25 09:56:47 -07:00
page_isolation.c
mm: split out internal page_alloc.h
2026-07-30 19:40:41 -07:00
page_owner.c
mm: split out internal page_alloc.h
2026-07-30 19:40:41 -07:00
page_poison.c
…
page_reporting.c
Merge branch 'mm-hotfixes-stable' into mm-stable in order to pick up
2026-08-04 19:15:12 -07:00
page_reporting.h
…
page_table_check.c
mm: rename uffd-wp PTE accessors to uffd
2026-08-04 19:18:36 -07:00
page_vma_mapped.c
mm/page_vma_mapped: use huge_ptep_get() for hugetlb
2026-07-30 19:40:45 -07:00
page-writeback.c
mm: remove wb_writeout_inc
2026-08-04 19:18:48 -07:00
pagewalk.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
percpu-internal.h
mm/percpu-internal.h: optimise pcpu_chunk struct to save memory
2026-06-02 15:22:13 -07:00
percpu-km.c
mm/percpu-km: clear page->private before free them
2026-08-04 19:18:32 -07:00
percpu-stats.c
mm: remove outdated filename comment in percpu-stats.c
2025-07-13 16:38:23 -07:00
percpu-vm.c
mm: split out vmalloc declarations from internal.h
2026-08-04 19:18:46 -07:00
percpu.c
mm/percpu: avoid IO/FS reclaim in backing allocations
2026-07-28 21:11:47 -07:00
pgalloc-track.h
…
pgtable-generic.c
mm: change to return bool for pmdp_clear_flush_young()
2026-04-05 13:53:35 -07:00
process_vm_access.c
…
ptdump.c
mm/ptdump: replace READ_ONCE() with standard page table accessors
2025-11-16 17:27:52 -08:00
readahead.c
Revert "mm: limit filemap_fault readahead to VMA boundaries"
2026-06-21 11:37:38 -07:00
rmap.c
mm/rmap: add anon folio unmap dispatcher
2026-08-04 19:19:07 -07:00
rodata_test.c
…
secretmem.c
libfs: drop redundant SB_I_NOEXEC/SB_I_NODEV in init_pseudo() callers
2026-06-04 10:10:49 +02:00
shmem_quota.c
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
shmem.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
show_mem.c
mm: split out internal page_alloc.h
2026-07-30 19:40:41 -07:00
shrinker_debug.c
mm: shrinker: fix NULL pointer dereference in debugfs
2026-07-01 19:02:52 -07:00
shrinker.c
mm: shrinker: fix shrinker_info teardown race with expansion
2026-07-01 19:02:52 -07:00
shuffle.c
mm: split out internal page_alloc.h
2026-07-30 19:40:41 -07:00
shuffle.h
…
slab_common.c
mm/slab: prevent unbounded recursion in free path with new kmalloc type
2026-07-14 17:22:40 +02:00
slab.h
mm: fix ASSERT_EXCLUSIVE_BITS by passing memdesc_flags_t by pointer
2026-07-30 19:40:31 -07:00
slub.c
mm: factor out can_spin_trylock()
2026-07-30 19:40:44 -07:00
sparse-vmemmap.c
mm: split out sparse declarations from internal.h
2026-08-04 19:18:46 -07:00
sparse.c
mm: split out sparse declarations from internal.h
2026-08-04 19:18:46 -07:00
sparse.h
mm: split out sparse declarations from internal.h
2026-08-04 19:18:46 -07:00
swap_state.c
mm/swap: colocate page-cluster sysctl with swap readahead
2026-08-04 19:18:34 -07:00
swap_table.h
mm, swap: merge zeromap into swap table
2026-06-02 15:22:23 -07:00
swap.h
mm/swap: colocate page-cluster sysctl with swap readahead
2026-08-04 19:18:34 -07:00
swapfile.c
mm: preserve RWP marker across PTE rewrites
2026-08-04 19:18:37 -07:00
truncate.c
mm/truncate: use folio_split() in truncate_inode_partial_folio()
2026-06-21 11:37:16 -07:00
usercopy.c
usercopy: Remove folio references from check_heap_object()
2025-11-13 11:01:08 +01:00
userfaultfd.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
util.c
mm/vma: use vma_start_pgoff(), linear_page_index() in mm code
2026-08-04 19:19:00 -07:00
vma_exec.c
mm/vma: correct incorrect vma.h inclusion
2026-08-04 19:19:04 -07:00
vma_init.c
mm/vma: correct incorrect vma.h inclusion
2026-08-04 19:19:04 -07:00
vma_internal.h
mm/vma: correct incorrect vma.h inclusion
2026-08-04 19:19:04 -07:00
vma.c
mm/vma: use guard clauses in can_vma_merge_[before, after]()
2026-08-04 19:19:04 -07:00
vma.h
mm/vma: correct incorrect vma.h inclusion
2026-08-04 19:19:04 -07:00
vmalloc.c
mm: split out vmalloc declarations from internal.h
2026-08-04 19:18:46 -07:00
vmalloc.h
mm: split out vmalloc declarations from internal.h
2026-08-04 19:18:46 -07:00
vmpressure.c
mm/vmpressure: move v1 userspace eventfd code into memcontrol-v1.c
2026-07-30 19:40:28 -07:00
vmscan.c
mm/swap: colocate page-cluster sysctl with swap readahead
2026-08-04 19:18:34 -07:00
vmstat.c
mm: move some stuff to mm/page_alloc.h
2026-07-30 19:40:41 -07:00
workingset.c
mm/mglru: use folio_mark_accessed to replace folio_set_active
2026-06-04 14:45:02 -07:00
zpdesc.h
mm: zpdesc: minor naming and comment corrections
2025-09-21 14:21:59 -07:00
zsmalloc.c
mm/zsmalloc: document free_zspage helper variants
2026-07-28 21:12:03 -07:00
zswap.c
mm, swap: add support for stable large allocation in swap cache directly
2026-06-02 15:22:21 -07:00