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Miaohe Lin 022e7fa0f7 mm/page_alloc: fix freeing static percpu memory 
The size of struct per_cpu_zonestat can be 0 on !SMP && !NUMA.  In that
case, zone->per_cpu_zonestats will always equal to boot_zonestats.  But in
zone_pcp_reset(), zone->per_cpu_zonestats is freed via free_percpu()
directly without checking against boot_zonestats first.  boot_zonestats
will be released by free_percpu() unexpectedly.

Link: https://lkml.kernel.org/r/20220916072257.9639-7-linmiaohe@huawei.com
Fixes: 28f836b6777b ("mm/page_alloc: split per cpu page lists and zone stats")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-10-03 14:03:29 -07:00
..
damon
mm/damon: return void from damon_set_schemes()
2022-10-03 14:03:27 -07:00
kasan
stackdepot: reserve 5 extra bits in depot_stack_handle_t
2022-10-03 14:03:18 -07:00
kfence
mm: kfence: convert to DEFINE_SEQ_ATTRIBUTE
2022-10-03 14:03:07 -07:00
kmsan
x86: kmsan: handle CPU entry area
2022-10-03 14:03:26 -07:00
backing-dev.c
mm: backing-dev: Remove the unneeded result variable
2022-09-11 20:26:02 -07:00
balloon_compaction.c
mm: Convert all PageMovable users to movable_operations
2022-08-02 12:34:03 -04:00
bootmem_info.c
bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem
2022-08-28 14:02:45 -07:00
cma_debug.c
mm/cma_debug: show complete cma name in debugfs directories
2022-09-11 20:25:50 -07:00
cma_sysfs.c
…
cma.c
Revert "mm/cma.c: remove redundant cma_mutex lock"
2022-05-13 15:11:26 -07:00
cma.h
mm/cma: provide option to opt out from exposing pages on activation failure
2022-03-22 15:57:09 -07:00
compaction.c
mm: add pageblock_aligned() macro
2022-10-03 14:03:04 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
docs: rename Documentation/vm to Documentation/mm
2022-06-27 12:52:53 -07:00
debug.c
mm: remove the vma linked list
2022-09-26 19:46:26 -07:00
dmapool.c
mm/dmapool.c: revert "make dma pool to use kmalloc_node"
2022-01-15 16:30:28 +02:00
early_ioremap.c
mm/early_ioremap: declare early_memremap_pgprot_adjust()
2022-03-22 15:57:11 -07:00
fadvise.c
riscv: compat: syscall: Add compat_sys_call_table implementation
2022-04-26 13:36:25 -07:00
failslab.c
mm: fix missing handler for __GFP_NOWARN
2022-05-19 14:08:55 -07:00
filemap.c
mm: fs: initialize fsdata passed to write_begin/write_end interface
2022-10-03 14:03:25 -07:00
folio-compat.c
mm: remove try_to_free_swap()
2022-10-03 14:02:53 -07:00
frontswap.c
frontswap: don't call ->init if no ops are registered
2022-09-26 12:14:34 -07:00
gup_test.c
mm: rename is_pinnable_page() to is_longterm_pinnable_page()
2022-07-17 17:14:27 -07:00
gup_test.h
…
gup.c
mm/gup: use gup_can_follow_protnone() also in GUP-fast
2022-09-26 19:46:28 -07:00
highmem.c
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
2022-08-05 16:32:45 -07:00
hmm.c
mm/swap: add swp_offset_pfn() to fetch PFN from swap entry
2022-09-26 19:46:05 -07:00
huge_memory.c
mm/huge_memory: prevent THP_ZERO_PAGE_ALLOC increased twice
2022-10-03 14:03:08 -07:00
hugetlb_cgroup.c
hugetlb_cgroup: use helper for_each_hstate and hstate_index
2022-09-11 20:25:53 -07:00
hugetlb_vmemmap.c
mm: hugetlb_vmemmap: simplify reset_struct_pages()
2022-09-11 20:25:58 -07:00
hugetlb_vmemmap.h
mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability
2022-08-08 18:06:43 -07:00
hugetlb.c
hugetlb: clean up code checking for fault/truncation races
2022-10-03 14:03:17 -07:00
hwpoison-inject.c
mm/hwpoison: add __init/__exit annotations to module init/exit funcs
2022-10-03 14:03:05 -07:00
init-mm.c
mm: remove rb tree.
2022-09-26 19:46:16 -07:00
internal.h
mm/page_alloc: make zone_pcp_update() static
2022-10-03 14:03:28 -07:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
mm: ioremap: Add ioremap/iounmap_allowed()
2022-06-27 12:22:31 +01:00
Kconfig
mm: multi-gen LRU: admin guide
2022-09-26 19:46:10 -07:00
Kconfig.debug
Two followon fixes for the post-5.19 series "Use pageblock_order for cma
2022-05-27 11:40:49 -07:00
khugepaged.c
khugepaged: call shmem_get_folio()
2022-10-03 14:02:50 -07:00
kmemleak.c
mm/kmemleak: make create_object return void
2022-09-11 20:26:10 -07:00
ksm.c
ksm: use a folio in replace_page()
2022-10-03 14:02:53 -07:00
list_lru.c
mm: kmem: make mem_cgroup_from_obj() vmalloc()-safe
2022-06-16 19:48:31 -07:00
maccess.c
asm-generic updates for 5.18
2022-03-23 18:03:08 -07:00
madvise.c
madvise: convert madvise_free_pte_range() to use a folio
2022-10-03 14:02:52 -07:00
Makefile
kmsan: add KMSAN runtime core
2022-10-03 14:03:19 -07:00
mapping_dirty_helpers.c
mm: move tlb_flush_pending inline helpers to mm_inline.h
2022-01-15 16:30:27 +02:00
memblock.c
mm: add pageblock_align() macro
2022-10-03 14:03:04 -07:00
memcontrol.c
mm/memcontrol: use kstrtobool for swapaccount param parsing
2022-10-03 14:03:14 -07:00
memfd.c
memfd: fix F_SEAL_WRITE after shmem huge page allocated
2022-03-05 11:08:32 -08:00
memory_hotplug.c
mm: add pageblock_aligned() macro
2022-10-03 14:03:04 -07:00
memory-failure.c
rmap: remove page_unlock_anon_vma_read()
2022-10-03 14:02:54 -07:00
memory-tiers.c
mm/demotion: expose memory tier details via sysfs
2022-09-26 19:46:13 -07:00
memory.c
mm: kmsan: maintain KMSAN metadata for page operations
2022-10-03 14:03:20 -07:00
mempolicy.c
mm/mempolicy: use PAGE_ALIGN instead of open-coding it
2022-10-03 14:03:15 -07:00
mempool.c
mm/mempool: use might_alloc()
2022-06-16 19:48:30 -07:00
memremap.c
mm/mremap_pages: save a few cycles in get_dev_pagemap()
2022-09-11 20:26:11 -07:00
memtest.c
…
migrate_device.c
mm: remember young/dirty bit for page migrations
2022-09-26 19:46:05 -07:00
migrate.c
mm: convert page_get_anon_vma() to folio_get_anon_vma()
2022-10-03 14:02:54 -07:00
mincore.c
mm: teach core mm about pte markers
2022-05-13 07:20:09 -07:00
mlock.c
mm/mlock: drop dead code in count_mm_mlocked_page_nr()
2022-09-26 19:46:27 -07:00
mm_init.c
mm: multi-gen LRU: groundwork
2022-09-26 19:46:09 -07:00
mm_slot.h
mm: introduce common struct mm_slot
2022-10-03 14:02:43 -07:00
mmap_lock.c
…
mmap.c
mm: refactor of vma_merge()
2022-09-26 19:46:27 -07:00
mmu_gather.c
mm/mmu_gather: limit free batch count and add schedule point in tlb_batch_pages_flush
2022-04-28 23:16:12 -07:00
mmu_notifier.c
mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove()
2022-04-21 20:01:10 -07:00
mmzone.c
mm: multi-gen LRU: groundwork
2022-09-26 19:46:09 -07:00
mprotect.c
mm/mprotect: use maple tree navigation instead of VMA linked list
2022-09-26 19:46:24 -07:00
mremap.c
mm: add merging after mremap resize
2022-09-26 19:46:28 -07:00
msync.c
mm/msync: use vma_find() instead of vma linked list
2022-09-26 19:46:25 -07:00
nommu.c
mm: remove the vma linked list
2022-09-26 19:46:26 -07:00
oom_kill.c
mm: reduce noise in show_mem for lowmem allocations
2022-09-26 19:46:29 -07:00
page_alloc.c
mm/page_alloc: fix freeing static percpu memory
2022-10-03 14:03:29 -07:00
page_counter.c
mm: page_counter: remove unneeded atomic ops for low/min
2022-09-11 20:26:01 -07:00
page_ext.c
page_ext: introduce boot parameter 'early_page_ext'
2022-09-11 20:26:02 -07:00
page_idle.c
mm: don't be stuck to rmap lock on reclaim path
2022-05-19 14:08:54 -07:00
page_io.c
swap: convert swap_writepage() to use a folio
2022-10-03 14:02:52 -07:00
page_isolation.c
mm: add pageblock_aligned() macro
2022-10-03 14:03:04 -07:00
page_owner.c
mm: reuse pageblock_start/end_pfn() macro
2022-10-03 14:03:03 -07:00
page_poison.c
…
page_reporting.c
…
page_reporting.h
…
page_table_check.c
mm/page_table_check: fix typos
2022-10-03 14:03:27 -07:00
page_vma_mapped.c
mm/swap: add swp_offset_pfn() to fetch PFN from swap entry
2022-09-26 19:46:05 -07:00
page-writeback.c
writeback: avoid use-after-free after removing device
2022-08-28 14:02:43 -07:00
pagewalk.c
mm/pagewalk: use vma_find() instead of vma linked list
2022-09-26 19:46:25 -07:00
percpu-internal.h
percpu: improve percpu_alloc_percpu event trace
2022-05-13 07:20:18 -07:00
percpu-km.c
…
percpu-stats.c
mm: use vmalloc_array and vcalloc for array allocations
2022-03-08 09:30:46 -05:00
percpu-vm.c
…
percpu.c
mm: percpu: use kmemleak_ignore_phys() instead of kmemleak_free()
2022-07-17 17:14:47 -07:00
pgalloc-track.h
…
pgtable-generic.c
mm: avoid unnecessary flush on change_huge_pmd()
2022-05-13 07:20:05 -07:00
process_vm_access.c
…
ptdump.c
mm: sparsemem: use page table lock to protect kernel pmd operations
2022-03-22 15:57:08 -07:00
readahead.c
filemap: Fix serialization adding transparent huge pages to page cache
2022-06-23 12:22:00 -04:00
rmap.c
hugetlb: use new vma_lock for pmd sharing synchronization
2022-10-03 14:03:17 -07:00
rodata_test.c
mm/rodata_test: use PAGE_ALIGNED() helper
2022-10-03 14:03:05 -07:00
secretmem.c
mm/secretmem: add __init annotation to secretmem_init()
2022-10-03 14:03:27 -07:00
shmem.c
tmpfs: add support for an i_version counter
2022-10-03 14:03:06 -07:00
shrinker_debug.c
mm: shrinkers: fix double kfree on shrinker name
2022-07-29 18:07:13 -07:00
shuffle.c
mm/shuffle: convert module_param_call to module_param_cb
2022-10-03 14:03:07 -07:00
shuffle.h
…
slab_common.c
mm/slab_common: move generic bulk alloc/free functions to SLOB
2022-07-20 13:30:12 +02:00
slab.c
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
2022-08-05 16:32:45 -07:00
slab.h
mm: kmsan: call KMSAN hooks from SLUB code
2022-10-03 14:03:20 -07:00
slob.c
mm/slab_common: move generic bulk alloc/free functions to SLOB
2022-07-20 13:30:12 +02:00
slub.c
mm: kmsan: call KMSAN hooks from SLUB code
2022-10-03 14:03:20 -07:00
sparse-vmemmap.c
mm: hugetlb_vmemmap: move vmemmap code related to HugeTLB to hugetlb_vmemmap.c
2022-08-08 18:06:42 -07:00
sparse.c
mm: memory_hotplug: enumerate all supported section flags
2022-07-03 18:08:49 -07:00
swap_cgroup.c
mm: use vmalloc_array and vcalloc for array allocations
2022-03-08 09:30:46 -05:00
swap_slots.c
mm/swap: convert put_swap_page() to put_swap_folio()
2022-10-03 14:02:46 -07:00
swap_state.c
swap_state: convert free_swap_cache() to use a folio
2022-10-03 14:02:51 -07:00
swap.c
mm: add folio_add_lru_vma()
2022-10-03 14:02:45 -07:00
swap.h
mm: remove lookup_swap_cache()
2022-10-03 14:02:51 -07:00
swapfile.c
memcg: convert mem_cgroup_swap_full() to take a folio
2022-10-03 14:02:53 -07:00
truncate.c
mm: add split_folio()
2022-10-03 14:02:45 -07:00
usercopy.c
usercopy: use unsigned long instead of uintptr_t
2022-07-01 17:03:38 -07:00
userfaultfd.c
hugetlb: use new vma_lock for pmd sharing synchronization
2022-10-03 14:03:17 -07:00
util.c
mm: remove the vma linked list
2022-09-26 19:46:26 -07:00
vmalloc.c
mm: kmsan: maintain KMSAN metadata for page operations
2022-10-03 14:03:20 -07:00
vmpressure.c
mm/vmpressure: fix data-race with memcg->socket_pressure
2021-11-06 13:30:40 -07:00
vmscan.c
memcg: convert mem_cgroup_swap_full() to take a folio
2022-10-03 14:02:53 -07:00
vmstat.c
mm: remove vmacache
2022-09-26 19:46:18 -07:00
workingset.c
mm: multi-gen LRU: minimal implementation
2022-09-26 19:46:09 -07:00
z3fold.c
mm: Convert all PageMovable users to movable_operations
2022-08-02 12:34:03 -04:00
zbud.c
…
zpool.c
zpool: remove the list of pools_head
2022-01-15 16:30:31 +02:00
zsmalloc.c
zsmalloc: use correct types in _first_obj_offset functions
2022-10-03 14:03:07 -07:00
zswap.c
mm/swap: remove the end_write_func argument to __swap_writepage
2022-09-11 20:25:50 -07:00