Zi Yan 2c1589c7f2 mm/memory_hotplug: use pfn math in place of direct struct page manipulation ... commit 1640a0ef80 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 17:20:06 +00:00
..
damon	mm/damon/sysfs: check error from damon_sysfs_update_target()	2023-11-28 17:19:58 +00:00
kasan	kasan: disable kasan_non_canonical_hook() for HW tags	2023-10-18 12:12:41 -07:00
kfence	LoongArch changes for v6.6	2023-09-08 12:16:52 -07:00
kmsan	mm: kmsan: use helper macros PAGE_ALIGN and PAGE_ALIGN_DOWN	2023-08-21 13:37:29 -07:00
backing-dev.c	writeback: remove redundant checks for root memcg	2023-08-21 13:37:48 -07:00
balloon_compaction.c
bootmem_info.c
cma_debug.c
cma_sysfs.c
cma.c	mm/cma: use nth_page() in place of direct struct page manipulation	2023-11-28 17:20:06 +00:00
cma.h
compaction.c	merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes	2023-08-21 14:26:20 -07:00
debug_page_alloc.c
debug_page_ref.c
debug_vm_pgtable.c	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
debug.c
dmapool_test.c
dmapool.c
early_ioremap.c	mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup()	2023-06-09 16:25:56 -07:00
fadvise.c	mm: remove unnecessary pagevec includes	2023-06-23 16:59:31 -07:00
fail_page_alloc.c
failslab.c
filemap.c	mm: report success more often from filemap_map_folio_range()	2023-09-29 17:20:45 -07:00
folio-compat.c	filemap: Add fgf_t typedef	2023-07-24 18:04:30 -04:00
gup_test.c	Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.	2023-06-23 16:58:19 -07:00
gup_test.h
gup.c	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
highmem.c	mm: ptep_get() conversion	2023-06-19 16:19:25 -07:00
hmm.c	mm: enable page walking API to lock vmas during the walk	2023-08-21 13:07:20 -07:00
huge_memory.c	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
hugetlb_cgroup.c
hugetlb_vmemmap.c	mm: hugetlb_vmemmap: fix a race between vmemmap pmd split	2023-08-18 10:12:14 -07:00
hugetlb_vmemmap.h
hugetlb.c	mm/hugetlb: use nth_page() in place of direct struct page manipulation	2023-11-28 17:20:06 +00:00
hwpoison-inject.c
init-mm.c	mm: move dummy_vm_ops out of a header	2023-08-21 13:37:46 -07:00
internal.h	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
interval_tree.c
io-mapping.c
ioremap.c	mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed	2023-08-18 10:12:36 -07:00
Kconfig	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
Kconfig.debug
khugepaged.c	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
kmemleak.c	mm/kmemleak: move up cond_resched() call in page scanning loop	2023-09-02 15:17:34 -07:00
ksm.c	mm: memory-failure: use rcu lock instead of tasklist_lock when collect_procs()	2023-09-05 11:11:52 -07:00
list_lru.c
maccess.c
madvise.c	swap: remove remnants of polling from read_swap_cache_async	2023-08-24 16:20:16 -07:00
Makefile	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
mapping_dirty_helpers.c	mm: fix clean_record_shared_mapping_range kernel-doc	2023-08-24 16:20:30 -07:00
memblock.c	mm: disable kernelcore=mirror when no mirror memory	2023-08-21 13:37:43 -07:00
memcontrol.c	mm, memcg: reconsider kmem.limit_in_bytes deprecation	2023-09-29 17:20:47 -07:00
memfd.c	revert "memfd: improve userspace warnings for missing exec-related flags".	2023-09-05 11:11:52 -07:00
memory_hotplug.c	mm/memory_hotplug: use pfn math in place of direct struct page manipulation	2023-11-28 17:20:06 +00:00
memory-failure.c	Seven hotfixes. Four are cc:stable and the remainder pertain to issues	2023-09-05 12:22:39 -07:00
memory-tiers.c	memory tier: use helper macro __ATTR_RW()	2023-08-18 10:12:38 -07:00
memory.c	hugetlbfs: close race between MADV_DONTNEED and page fault	2023-10-18 12:12:41 -07:00
mempolicy.c	numa: Generalize numa_map_to_online_node()	2023-11-20 11:58:51 +01:00
mempool.c
memremap.c
memtest.c	mm: memtest: convert to memtest_report_meminfo()	2023-08-21 13:37:47 -07:00
migrate_device.c	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
migrate.c	mm/migrate: fix do_pages_move for compat pointers	2023-10-06 14:11:38 -07:00
mincore.c	mm: enable page walking API to lock vmas during the walk	2023-08-21 13:07:20 -07:00
mlock.c	merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes	2023-08-21 14:26:20 -07:00
mm_init.c	mm/mm_init: use helper macro BITS_PER_LONG and BITS_PER_BYTE	2023-08-21 13:37:47 -07:00
mm_slot.h
mmap_lock.c
mmap.c	mmap: fix error paths with dup_anon_vma()	2023-10-06 14:11:38 -07:00
mmu_gather.c	mm: fix kernel-doc warning from tlb_flush_rmaps()	2023-08-24 16:20:30 -07:00
mmu_notifier.c	mmu_notifiers: rename invalidate_range notifier	2023-08-18 10:12:41 -07:00
mmzone.c
mprotect.c	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
mremap.c	vm: fix move_vma() memory accounting being off	2023-09-16 15:23:31 -07:00
msync.c
nommu.c	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
oom_kill.c	mm: remove redundant K() macro definition	2023-08-21 13:37:44 -07:00
page_alloc.c	mm/page_alloc: correct start page when guard page debug is enabled	2023-10-06 14:11:38 -07:00
page_counter.c
page_ext.c	mm/page_ext: move functions around for minor cleanups to page_ext	2023-08-18 10:12:31 -07:00
page_idle.c
page_io.c	zswap: make zswap_load() take a folio	2023-08-21 13:37:27 -07:00
page_isolation.c	mm/hugetlb: get rid of page_hstate()	2023-08-18 10:12:39 -07:00
page_owner.c	mm/page_ext: use page_ext_data helper in page_owner	2023-08-21 13:37:27 -07:00
page_poison.c	mm/page_poison: remove unused page_ext.h from page_poison	2023-08-21 13:37:30 -07:00
page_reporting.c
page_reporting.h
page_table_check.c	mm: convert page_table_check_pte_set() to page_table_check_ptes_set()	2023-08-24 16:20:18 -07:00
page_vma_mapped.c	mm: correct stale comment of function check_pte	2023-08-18 10:12:13 -07:00
page-writeback.c	mm: remove folio_account_redirty	2023-08-21 14:52:16 +02:00
pagewalk.c	mm/pagewalk: fix bootstopping regression from extra pte_unmap()	2023-09-02 08:39:21 -07:00
percpu-internal.h	percpu-internal/pcpu_chunk: re-layout pcpu_chunk structure to reduce false sharing	2023-06-19 16:19:29 -07:00
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c	mm/percpu.c: print error message too if atomic alloc failed	2023-08-25 08:04:59 -07:00
pgalloc-track.h
pgtable-generic.c	mm/pgtable: notes on pte_offset_map[_lock]()	2023-08-18 10:12:25 -07:00
process_vm_access.c
ptdump.c	mm: ptdump should use ptep_get_lockless()	2023-06-19 16:19:24 -07:00
readahead.c	vfs: fix readahead(2) on block devices	2023-11-20 11:58:52 +01:00
rmap.c	mm: hugetlb: add huge page size param to set_huge_pte_at()	2023-09-29 17:20:47 -07:00
rodata_test.c
secretmem.c	mm/secretmem: use a folio in secretmem_fault()	2023-08-21 13:38:02 -07:00
shmem_quota.c	shmem: Add default quota limit mount options	2023-08-09 09:15:40 +02:00
shmem.c	Revert "tmpfs: add support for multigrain timestamps"	2023-09-20 18:05:30 +02:00
show_mem.c	mm,thp: no space after colon in Mem-Info fields	2023-08-21 13:38:01 -07:00
shrinker_debug.c	Revert "mm: shrinkers: make count and scan in shrinker debugfs lockless"	2023-06-19 13:19:34 -07:00
shuffle.c
shuffle.h
slab_common.c	mm: slab: Do not create kmalloc caches smaller than arch_slab_minalign()	2023-10-11 15:24:49 +02:00
slab.c	Randomized slab caches for kmalloc()	2023-07-18 10:07:47 +02:00
slab.h	Randomized slab caches for kmalloc()	2023-07-18 10:07:47 +02:00
slub.c	mm/slub: remove freelist_dereference()	2023-07-14 09:57:21 +02:00
sparse-vmemmap.c	mm/vmemmap: allow architectures to override how vmemmap optimization works	2023-08-18 10:12:53 -07:00
sparse.c	mm/sparse: remove redundant judgments from macro for_each_present_section_nr	2023-08-18 10:12:14 -07:00
swap_cgroup.c
swap_slots.c
swap_state.c	mm/swap: inline folio_set_swap_entry() and folio_swap_entry()	2023-08-24 16:20:28 -07:00
swap.c	mm: remove references to pagevec	2023-06-23 16:59:30 -07:00
swap.h	swap: remove remnants of polling from read_swap_cache_async	2023-08-24 16:20:16 -07:00
swapfile.c	mm/swap: inline folio_set_swap_entry() and folio_swap_entry()	2023-08-24 16:20:28 -07:00
truncate.c	- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")	2023-08-29 14:25:26 -07:00
usercopy.c
userfaultfd.c	Add x86 shadow stack support	2023-08-31 12:20:12 -07:00
util.c	rcu: dump vmalloc memory info safely	2023-09-05 10:13:45 -07:00
vmalloc.c	mm: hugetlb: add huge page size param to set_huge_pte_at()	2023-09-29 17:20:47 -07:00
vmpressure.c	net-memcg: Fix scope of sockmem pressure indicators	2023-08-16 12:21:32 +01:00
vmscan.c	mm/swap: inline folio_set_swap_entry() and folio_swap_entry()	2023-08-24 16:20:28 -07:00
vmstat.c	mm/vmstat: remove unused page_ext.h from vmstat	2023-08-21 13:37:30 -07:00
workingset.c	mm: memcg: use rstat for non-hierarchical stats	2023-08-24 16:20:18 -07:00
z3fold.c	mm/z3fold: remove obsolete comment for struct z3fold_pool	2023-08-21 13:37:51 -07:00
zbud.c	mm: zswap: remove shrink from zpool interface	2023-06-19 16:19:27 -07:00
zpool.c	mm: zswap: remove shrink from zpool interface	2023-06-19 16:19:27 -07:00
zsmalloc.c	merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes	2023-08-21 14:26:20 -07:00
zswap.c	mm: zswap: fix pool refcount bug around shrink_worker()	2023-10-18 12:12:40 -07:00