Mel Gorman 77fe7f136a mm/page_alloc: check high-order pages for corruption during PCP operations ... Eric Dumazet pointed out that commit 44042b4498 ("mm/page_alloc: allow high-order pages to be stored on the per-cpu lists") only checks the head page during PCP refill and allocation operations. This was an oversight and all pages should be checked. This will incur a small performance penalty but it's necessary for correctness. Link: https://lkml.kernel.org/r/20220310092456.GJ15701@techsingularity.net Fixes: 44042b4498 ("mm/page_alloc: allow high-order pages to be stored on the per-cpu lists") Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Reported-by: Eric Dumazet <edumazet@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Shakeel Butt <shakeelb@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: David Rientjes <rientjes@google.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Wei Xu <weixugc@google.com> Cc: Greg Thelen <gthelen@google.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2022-03-22 15:57:06 -07:00
..
damon	mm/damon: hide kernel pointer from tracepoint event	2022-01-15 16:30:33 +02:00
kasan	lib/stackdepot: always do filter_irq_stacks() in stack_depot_save()	2022-01-22 08:33:38 +02:00
kfence	kfence: make test case compatible with run time set sample interval	2022-02-11 17:55:00 -08:00
backing-dev.c	remove congestion tracking framework	2022-03-22 15:57:01 -07:00
balloon_compaction.c	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
bootmem_info.c	bootmem: Use page->index instead of page->freelist	2022-01-06 12:27:03 +01:00
cma_debug.c	mm/cma: change cma mutex to irq safe spinlock	2021-05-05 11:27:21 -07:00
cma_sysfs.c	mm: cma: support sysfs	2021-05-05 11:27:24 -07:00
cma.c	cma: factor out minimum alignment requirement	2022-03-22 15:57:05 -07:00
cma.h	mm: cma: support sysfs	2021-05-05 11:27:24 -07:00
compaction.c	mm: compaction: fix the migration stats in trace_mm_compaction_migratepages()	2022-01-15 16:30:30 +02:00
debug_page_ref.c
debug_vm_pgtable.c	mm/debug_vm_pgtable: remove pte entry from the page table	2022-02-04 09:25:04 -08:00
debug.c	mm,fs: split dump_mapping() out from dump_page()	2022-01-15 16:30:26 +02:00
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.c: remove redundant early_ioremap_shutdown()	2021-09-08 11:50:24 -07:00
fadvise.c	remove inode_congested()	2022-03-22 15:57:01 -07:00
failslab.c
filemap.c	tmpfs: do not allocate pages on read	2022-03-22 15:57:02 -07:00
folio-compat.c	filemap: Add filemap_release_folio()	2022-01-04 13:15:34 -05:00
frontswap.c	frontswap: remove support for multiple ops	2022-01-22 08:33:38 +02:00
gup_test.c	selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages	2021-05-05 11:27:26 -07:00
gup_test.h	selftests/vm: gup_test: fix test flag	2021-05-05 11:27:26 -07:00
gup.c	mm/gup: remove unused get_user_pages_locked()	2022-03-22 15:57:01 -07:00
highmem.c	Fixes for 5.16 folios:	2021-11-25 10:13:56 -08:00
hmm.c	mm/hmm.c: allow VM_MIXEDMAP to work with hmm_range_fault	2022-01-15 16:30:31 +02:00
huge_memory.c	mm: thp: fix wrong cache flush in remove_migration_pmd()	2022-03-22 15:57:04 -07:00
hugetlb_cgroup.c	hugetlb: add hugetlb.*.numa_stat file	2022-01-15 16:30:29 +02:00
hugetlb_vmemmap.c	mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON	2021-06-30 20:47:26 -07:00
hugetlb_vmemmap.h	mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate	2021-06-30 20:47:25 -07:00
hugetlb.c	mm: hugetlb: fix missing cache flush in hugetlb_mcopy_atomic_pte()	2022-03-22 15:57:04 -07:00
hwpoison-inject.c	mm: hwpoison: don't drop slab caches for offlining non-LRU page	2021-09-03 09:58:15 -07:00
init-mm.c	mm: add setup_initial_init_mm() helper	2021-07-08 11:48:21 -07:00
internal.h	mm/sparse: make mminit_validate_memmodel_limits() static	2022-03-22 15:57:05 -07:00
interval_tree.c
io-mapping.c
ioremap.c	mm: move ioremap_page_range to vmalloc.c	2021-09-08 11:50:24 -07:00
Kconfig	mm: enforce pageblock_order < MAX_ORDER	2022-03-22 15:57:06 -07:00
Kconfig.debug	mm: page table check	2022-01-15 16:30:28 +02:00
khugepaged.c	mm/page_table_check: check entries at pmd levels	2022-02-04 09:25:04 -08:00
kmemleak.c	mm/kmemleak: avoid scanning potential huge holes	2022-02-04 09:25:05 -08:00
ksm.c	mm: ksm: fix use-after-free kasan report in ksm_might_need_to_copy	2022-01-15 16:30:31 +02:00
list_lru.c	mm: memcontrol: rename memcg_cache_id to memcg_kmem_id	2022-03-22 15:57:04 -07:00
maccess.c	ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault	2021-08-20 11:39:25 +01:00
madvise.c	mm: fix use-after-free when anon vma name is used after vma is freed	2022-03-05 11:08:32 -08:00
Makefile	mm: remove cleancache	2022-01-22 08:33:38 +02:00
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	memblock: use kfree() to release kmalloced memblock regions	2022-02-20 08:45:39 +02:00
memcontrol.c	mm: memcontrol: fix cannot alloc the maximum memcg ID	2022-03-22 15:57:03 -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	treewide: Add missing includes masked by cgroup -> bpf dependency	2021-12-03 10:58:13 -08:00
memory-failure.c	memory-failure: fetch compound_head after pgmap_pfn_valid()	2022-01-30 09:56:58 +02:00
memory.c	mm/memory.c: use helper macro min and max in unmap_mapping_range_tree()	2022-03-22 15:57:05 -07:00
mempolicy.c	mm: change lookup_node() to use get_user_pages_fast()	2022-03-22 15:57:01 -07:00
mempool.c	mm: remove spurious blkdev.h includes	2021-10-18 06:17:01 -06:00
memremap.c	mm/memremap: avoid calling kasan_remove_zero_shadow() for device private memory	2022-03-22 15:57:01 -07:00
memtest.c
migrate.c	mm: replace multiple dcache flush with flush_dcache_folio()	2022-03-22 15:57:04 -07:00
mincore.c
mlock.c	mm: refactor vm_area_struct::anon_vma_name usage code	2022-03-05 11:08:32 -08:00
mm_init.c
mmap_lock.c	mm: mmap_lock: fix disabling preemption directly	2021-07-23 17:43:28 -07:00
mmap.c	mm/mmap: remove obsolete comment in ksys_mmap_pgoff	2022-03-22 15:57:05 -07:00
mmu_gather.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
mmu_notifier.c
mmzone.c	mm/mmzone.c: use try_cmpxchg() in page_cpupid_xchg_last()	2022-03-22 15:57:05 -07:00
mprotect.c	mm: refactor vm_area_struct::anon_vma_name usage code	2022-03-05 11:08:32 -08:00
mremap.c	mm/mremap:: use vma_lookup() instead of find_vma()	2022-03-22 15:57:05 -07:00
msync.c
nommu.c	Merge branch 'akpm' (patches from Andrew)	2021-11-06 14:08:17 -07:00
oom_kill.c	Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2022-01-17 05:49:30 +02:00
page_alloc.c	mm/page_alloc: check high-order pages for corruption during PCP operations	2022-03-22 15:57:06 -07:00
page_counter.c	mm/page_counter: remove an incorrect call to propagate_protected_usage()	2022-01-15 16:30:27 +02:00
page_ext.c	mm: make some vars and functions static or __init	2022-01-15 16:30:31 +02:00
page_idle.c	mm/idle_page_tracking: make PG_idle reusable	2021-09-08 11:50:24 -07:00
page_io.c	delayacct: support swapin delay accounting for swapping without blkio	2022-01-20 08:52:55 +02:00
page_isolation.c	Revert "mm/page_isolation: unset migratetype directly for non Buddy page"	2022-02-04 09:25:04 -08:00
page_owner.c	lib/stackdepot: allow optional init and stack_table allocation by kvmalloc()	2022-01-22 08:33:37 +02:00
page_poison.c
page_reporting.c	mm/page_reporting: allow driver to specify reporting order	2021-06-29 10:53:47 -07:00
page_reporting.h	mm/page_reporting: export reporting order as module parameter	2021-06-29 10:53:47 -07:00
page_table_check.c	mm/page_table_check: check entries at pmd levels	2022-02-04 09:25:04 -08:00
page_vma_mapped.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
page-writeback.c	mm/writeback: minor clean up for highmem_dirtyable_memory	2022-03-22 15:57:01 -07:00
pagewalk.c	mm: pagewalk: fix walk for hugepage tables	2021-06-29 10:53:49 -07:00
percpu-internal.h	mm: memcg/percpu: account extra objcg space to memory cgroups	2022-01-15 16:30:31 +02:00
percpu-km.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu-stats.c	percpu: rework memcg accounting	2021-06-05 20:43:15 +00:00
percpu-vm.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu.c	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
pgalloc-track.h	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
pgtable-generic.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
process_vm_access.c	mm/process_vm_access.c: remove duplicate include	2021-05-05 11:27:27 -07:00
ptdump.c
readahead.c	remove inode_congested()	2022-03-22 15:57:01 -07:00
rmap.c	mm/rmap: fix potential batched TLB flush race	2022-01-15 16:30:31 +02:00
rodata_test.c
secretmem.c	mm/secretmem: avoid letting secretmem_users drop to zero	2021-10-28 17:18:55 -07:00
shmem.c	mm: shmem: fix missing cache flush in shmem_mfill_atomic_pte()	2022-03-22 15:57:04 -07:00
shuffle.c
shuffle.h	mm/shuffle: fix section mismatch warning	2021-05-22 15:09:07 -10:00
slab_common.c	Merge branch 'akpm' (patches from Andrew)	2022-01-15 20:37:06 +02:00
slab.c	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -07:00
slab.h	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -07:00
slob.c	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -07:00
slub.c	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -07:00
sparse-vmemmap.c	mm: remove redundant smp_wmb()	2021-11-06 13:30:36 -07:00
sparse.c	mm/sparse: make mminit_validate_memmodel_limits() static	2022-03-22 15:57:05 -07:00
swap_cgroup.c
swap_slots.c	treewide: Add missing includes masked by cgroup -> bpf dependency	2021-12-03 10:58:13 -08:00
swap_state.c	mm: swap: get rid of livelock in swapin readahead	2022-03-17 11:02:13 -07:00
swap.c	mm/swap: fix confusing comment in folio_mark_accessed	2022-03-22 15:57:01 -07:00
swapfile.c	mm: mark swap_lock and swap_active_head static	2022-01-22 08:33:38 +02:00
truncate.c	mm: remove cleancache	2022-01-22 08:33:38 +02:00
usercopy.c	mm: Convert check_heap_object() to use struct slab	2022-01-06 12:25:51 +01:00
userfaultfd.c	mm: userfaultfd: fix missing cache flush in mcopy_atomic_pte() and __mcopy_atomic()	2022-03-22 15:57:04 -07:00
util.c	mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls	2022-03-04 10:00:37 -08:00
vmacache.c
vmalloc.c	mm/vmalloc.c: fix "unused function" warning	2022-03-22 15:57:05 -07:00
vmpressure.c	mm/vmpressure: fix data-race with memcg->socket_pressure	2021-11-06 13:30:40 -07:00
vmscan.c	remove bdi_congested() and wb_congested() and related functions	2022-03-22 15:57:01 -07:00
vmstat.c	mm/vmstat: add events for THP max_ptes_* exceeds	2022-01-15 16:30:29 +02:00
workingset.c	xarray: use kmem_cache_alloc_lru to allocate xa_node	2022-03-22 15:57:03 -07:00
z3fold.c	mm/z3fold: add kerneldoc fields for z3fold_pool	2021-07-01 11:06:03 -07:00
zbud.c	mm/zbud: add kerneldoc fields for zbud_pool	2021-07-01 11:06:03 -07:00
zpool.c	zpool: remove the list of pools_head	2022-01-15 16:30:31 +02:00
zsmalloc.c	zsmalloc: replace get_cpu_var with local_lock	2022-01-22 08:33:37 +02:00
zswap.c	frontswap: remove support for multiple ops	2022-01-22 08:33:38 +02:00