Zi Yan aee642ae99 mm/memory_hotplug: use pfn math in place of direct struct page manipulation ... commit 1640a0ef80f6d572725f5b0330038c18e98ea168 upstream. When dealing with hugetlb pages, manipulating struct page pointers directly can get to wrong struct page, since struct page is not guaranteed to be contiguous on SPARSEMEM without VMEMMAP. Use pfn calculation to handle it properly. Without the fix, a wrong number of page might be skipped. Since skip cannot be negative, scan_movable_page() will end early and might miss a movable page with -ENOENT. This might fail offline_pages(). No bug is reported. The fix comes from code inspection. Link: https://lkml.kernel.org/r/20230913201248.452081-4-zi.yan@sent.com Fixes: eeb0efd071 ("mm,memory_hotplug: fix scan_movable_pages() for gigantic hugepages") Signed-off-by: Zi Yan <ziy@nvidia.com> Reviewed-by: Muchun Song <songmuchun@bytedance.com> Acked-by: David Hildenbrand <david@redhat.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport (IBM) <rppt@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-11-28 17:07:14 +00:00
..
damon	mm/damon/sysfs: check error from damon_sysfs_update_target()	2023-11-28 17:07:09 +00:00
kasan	kasan: print the original fault addr when access invalid shadow	2023-11-02 09:35:29 +01:00
kfence	mm: kfence: fix handling discontiguous page	2023-04-13 16:55:30 +02:00
kmsan	mm: kmsan: handle alloc failures in kmsan_vmap_pages_range_noflush()	2023-04-26 14:28:41 +02:00
backing-dev.c	writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs	2023-04-26 14:28:39 +02:00
balloon_compaction.c
bootmem_info.c
cma.c	mm/cma: use nth_page() in place of direct struct page manipulation	2023-11-28 17:07:14 +00:00
cma.h
cma_debug.c
cma_sysfs.c
compaction.c	Revert "mm/compaction: fix set skip in fast_find_migrateblock"	2023-02-01 08:34:49 +01:00
debug.c
debug_page_ref.c
debug_vm_pgtable.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c	mm: fix unexpected changes to {failslab|fail_page_alloc}.attr	2022-11-22 18:50:44 -08:00
filemap.c	filemap: add filemap_get_folios_tag()	2023-11-20 11:52:09 +01:00
folio-compat.c
frontswap.c
gup.c	mm: always expand the stack with the mmap write lock held	2023-07-01 13:16:25 +02:00
gup_test.c
gup_test.h
highmem.c	highmem: fix kmap_to_page() for kmap_local_page() addresses	2022-10-12 18:51:51 -07:00
hmm.c
huge_memory.c	mm/huge_memory.c: warn with pr_warn_ratelimited instead of VM_WARN_ON_ONCE_FOLIO	2023-04-26 14:28:41 +02:00
hugetlb.c	hugetlbfs: extend hugetlb_vma_lock to private VMAs	2023-11-02 09:35:24 +01:00
hugetlb_cgroup.c
hugetlb_vmemmap.c	mm: hugetlb_vmemmap: fix a race between vmemmap pmd split	2023-09-19 12:27:56 +02:00
hugetlb_vmemmap.h
hwpoison-inject.c
init-mm.c
internal.h	mm/page_alloc: make boot_nodestats static	2022-10-03 14:03:30 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig	mm: introduce new 'lock_mm_and_find_vma()' page fault helper	2023-07-01 13:16:24 +02:00
Kconfig.debug	mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM	2023-06-14 11:15:29 +02:00
khugepaged.c	mm/khugepaged: check again on anon uffd-wp during isolation	2023-04-26 14:28:41 +02:00
kmemleak.c	mm/kmemleak: prevent soft lockup in kmemleak_scan()'s object iteration loops	2022-10-28 13:37:22 -07:00
ksm.c	mm/ksm: fix race with VMA iteration and mm_struct teardown	2023-03-30 12:49:29 +02:00
list_lru.c
maccess.c	mm: Fix copy_from_user_nofault().	2023-06-28 11:12:17 +02:00
madvise.c	madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check	2023-08-30 16:11:11 +02:00
Makefile	mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol	2022-10-03 14:03:36 -07:00
mapping_dirty_helpers.c
memblock.c	Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."	2023-02-22 12:59:50 +01:00
memcontrol.c	mm, memcg: reconsider kmem.limit_in_bytes deprecation	2023-10-06 14:57:06 +02:00
memfd.c	memfd: check for non-NULL file_seals in memfd_create() syscall	2023-06-28 11:12:27 +02:00
memory-failure.c	mm: memory-failure: fix unexpected return value in soft_offline_page()	2023-08-30 16:11:06 +02:00
memory-tiers.c	memory tier: release the new_memtier in find_create_memory_tier()	2023-03-10 09:34:27 +01:00
memory.c	mm/memory: add vm_normal_folio()	2023-10-10 22:00:35 +02:00
memory_hotplug.c	mm/memory_hotplug: use pfn math in place of direct struct page manipulation	2023-11-28 17:07:14 +00:00
mempolicy.c	mm/mempolicy: fix set_mempolicy_home_node() previous VMA pointer	2023-11-08 14:11:02 +01:00
mempool.c
memremap.c	mm/memremap.c: map FS_DAX device memory as decrypted	2022-11-08 15:57:23 -08:00
memtest.c
migrate.c	mm/migrate: fix do_pages_move for compat pointers	2023-11-02 09:35:24 +01:00
migrate_device.c	mm/migrate_device: return number of migrating pages in args->cpages	2022-11-22 18:50:43 -08:00
mincore.c	mm: teach mincore_hugetlb about pte markers	2023-03-22 13:34:03 +01:00
mlock.c
mm_init.c
mm_slot.h
mmap.c	mmap: fix error paths with dup_anon_vma()	2023-11-08 14:11:03 +01:00
mmap_lock.c
mmu_gather.c	mm/khugepaged: fix GUP-fast interaction by sending IPI	2022-11-30 14:49:42 -08:00
mmu_notifier.c
mmzone.c
mprotect.c	mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in	2022-10-12 15:56:46 -07:00
mremap.c	mm, mremap: fix mremap() expanding for vma's with vm_ops->close()	2023-02-09 11:28:22 +01:00
msync.c
nommu.c	xtensa: fix lock_mm_and_find_vma in case VMA not found	2023-07-05 18:27:37 +01:00
oom_kill.c
page-writeback.c
page_alloc.c	mm/page_alloc: correct start page when guard page debug is enabled	2023-11-02 09:35:24 +01:00
page_counter.c
page_ext.c	mm/page_exit: fix kernel doc warning in page_ext_put()	2022-11-22 18:50:41 -08:00
page_idle.c
page_io.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
page_isolation.c	mm/page_isolation: fix clang deadcode warning	2022-10-28 13:37:22 -07:00
page_owner.c
page_poison.c
page_reporting.c
page_reporting.h
page_table_check.c	mm: page_table_check: Ensure user pages are not slab pages	2023-06-14 11:15:29 +02:00
page_vma_mapped.c
pagewalk.c	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgalloc-track.h
pgtable-generic.c
process_vm_access.c	use less confusing names for iov_iter direction initializers	2023-02-09 11:28:04 +01:00
ptdump.c
readahead.c	vfs: fix readahead(2) on block devices	2023-11-20 11:51:50 +01:00
rmap.c	mm/hwpoison: convert TTU_IGNORE_HWPOISON to TTU_HWPOISON	2023-03-10 09:34:25 +01:00
rodata_test.c
secretmem.c	mm/secretmem: remove reduntant return value	2022-10-03 14:03:36 -07:00
shmem.c	tmpfs: verify {g,u}id mount options correctly	2023-09-13 09:42:27 +02:00
shrinker_debug.c	mm: shrinkers: fix deadlock in shrinker debugfs	2023-02-22 12:59:46 +01:00
shuffle.c
shuffle.h
slab.c	mm/slab: Fix undefined init_cache_node_node() for NUMA and !SMP	2023-03-30 12:49:23 +02:00
slab.h	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
slab_common.c	mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()	2023-10-06 14:57:03 +02:00
slob.c
slub.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
sparse-vmemmap.c
sparse.c
swap.c
swap.h
swap_cgroup.c	mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled	2022-10-03 14:03:36 -07:00
swap_slots.c
swap_state.c
swapfile.c	mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()	2023-04-13 16:55:36 +02:00
truncate.c
usercopy.c	mm: Fix copy_from_user_nofault().	2023-06-28 11:12:17 +02:00
userfaultfd.c	mm/shmem: use page_mapping() to detect page cache for uffd continue	2022-11-08 15:57:23 -08:00
util.c	rcu: dump vmalloc memory info safely	2023-09-13 09:42:59 +02:00
vmalloc.c	mm/vmalloc: add a safer version of find_vm_area() for debug	2023-09-13 09:43:00 +02:00
vmpressure.c	net-memcg: Fix scope of sockmem pressure indicators	2023-09-13 09:42:33 +02:00
vmscan.c	Multi-gen LRU: avoid race in inc_min_seq()	2023-09-19 12:28:04 +02:00
vmstat.c	- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in	2022-10-10 17:53:04 -07:00
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c	zsmalloc: allow only one active pool compaction context	2023-08-23 17:52:40 +02:00
zswap.c	zswap: do not shrink if cgroup may not zswap	2023-06-21 16:00:54 +02:00