Liu Shixin 6ec0fe3756 mm/swapfile: skip HugeTLB pages for unuse_vma ... commit 7528c4fb1237512ee18049f852f014eba80bbe8d upstream. I got a bad pud error and lost a 1GB HugeTLB when calling swapoff. The problem can be reproduced by the following steps: 1. Allocate an anonymous 1GB HugeTLB and some other anonymous memory. 2. Swapout the above anonymous memory. 3. run swapoff and we will get a bad pud error in kernel message: mm/pgtable-generic.c:42: bad pud 00000000743d215d(84000001400000e7) We can tell that pud_clear_bad is called by pud_none_or_clear_bad in unuse_pud_range() by ftrace. And therefore the HugeTLB pages will never be freed because we lost it from page table. We can skip HugeTLB pages for unuse_vma to fix it. Link: https://lkml.kernel.org/r/20241015014521.570237-1-liushixin2@huawei.com Fixes: 0fe6e20b9c ("hugetlb, rmap: add reverse mapping for hugepage") Signed-off-by: Liu Shixin <liushixin2@huawei.com> Acked-by: Muchun Song <muchun.song@linux.dev> Cc: Naoya Horiguchi <nao.horiguchi@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-10-22 15:56:43 +02:00
..
damon	mm/damon/vaddr: protect vma traversal in __damon_va_thre_regions() with rcu read lock	2024-10-17 15:21:27 +02:00
kasan
kfence
kmsan	kmsan: do not wipe out origin when doing partial unpoisoning	2024-06-16 13:41:38 +02:00
backing-dev.c
balloon_compaction.c
bootmem_info.c
cma_debug.c
cma_sysfs.c
cma.c	mm/cma: drop incorrect alignment check in cma_init_reserved_mem	2024-06-16 13:41:39 +02:00
cma.h
compaction.c
debug_page_ref.c
debug_vm_pgtable.c
debug.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c	mm/filemap: optimize filemap folio adding	2024-10-17 15:21:26 +02:00
folio-compat.c
frontswap.c
gup_test.c
gup_test.h
gup.c
highmem.c
hmm.c
huge_memory.c	mm/numa: no task_numa_fault() call if PMD is changed	2024-08-29 17:30:52 +02:00
hugetlb_cgroup.c	mm/hugetlb_cgroup: convert hugetlb_cgroup_uncharge_page() to folios	2024-05-17 11:55:52 +02:00
hugetlb_vmemmap.c
hugetlb_vmemmap.h
hugetlb.c	mm/hugetlb: fix potential race in __update_and_free_hugetlb_folio()	2024-08-14 13:53:02 +02:00
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
io-mapping.c
ioremap.c
Kconfig	mm: z3fold: deprecate CONFIG_Z3FOLD	2024-10-17 15:22:05 +02:00
Kconfig.debug
khugepaged.c	mm: khugepaged: fix kernel BUG in hpage_collapse_scan_file()	2024-08-29 17:30:17 +02:00
kmemleak.c
ksm.c
list_lru.c
maccess.c
madvise.c
Makefile
mapping_dirty_helpers.c
memblock.c
memcontrol.c	memcg: protect concurrent access to mem_cgroup_idr	2024-09-12 11:10:29 +02:00
memfd.c
memory_hotplug.c	x86/kaslr: Expose and use the end of the physical memory address space	2024-09-12 11:10:17 +02:00
memory-failure.c	mm/memory-failure: use raw_spinlock_t in struct memory_failure_cpu	2024-08-29 17:30:15 +02:00
memory-tiers.c
memory.c	mm: avoid leaving partial pfn mappings around in error case	2024-09-18 19:23:04 +02:00
mempolicy.c	mm/numa_balancing: teach mpol_to_str about the balancing mode	2024-08-03 08:49:40 +02:00
mempool.c
memremap.c
memtest.c
migrate_device.c
migrate.c	mm/hugetlb: add folio_hstate()	2024-05-17 11:55:52 +02:00
mincore.c
mlock.c
mm_init.c
mm_slot.h
mmap_lock.c	mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer	2024-08-03 08:49:30 +02:00
mmap.c
mmu_gather.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c
oom_kill.c
page_alloc.c	mm/page_alloc: fix pcp->count race between drain_pages_zone() vs __rmqueue_pcplist()	2024-08-11 12:35:54 +02:00
page_counter.c
page_ext.c
page_idle.c
page_io.c
page_isolation.c
page_owner.c
page_poison.c
page_reporting.c
page_reporting.h
page_table_check.c	mm/page_table_check: fix crash on ZONE_DEVICE	2024-06-27 13:46:22 +02:00
page_vma_mapped.c
page-writeback.c	Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again"	2024-07-11 12:47:14 +02:00
pagewalk.c
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgalloc-track.h
pgtable-generic.c	mm: fix race between __split_huge_pmd_locked() and GUP-fast	2024-06-16 13:41:38 +02:00
process_vm_access.c
ptdump.c
readahead.c	mm: use memalloc_nofs_save() in page_cache_ra_order()	2024-05-17 11:56:21 +02:00
rmap.c
rodata_test.c
secretmem.c	secretmem: disable memfd_secret() if arch cannot set direct map	2024-10-17 15:22:28 +02:00
shmem.c
shrinker_debug.c
shuffle.c
shuffle.h
slab_common.c	mm: krealloc: consider spare memory for __GFP_ZERO	2024-10-17 15:21:56 +02:00
slab.c
slab.h
slob.c
slub.c
sparse-vmemmap.c
sparse.c	x86/kaslr: Expose and use the end of the physical memory address space	2024-09-12 11:10:17 +02:00
swap_cgroup.c
swap_slots.c
swap_state.c
swap.c
swap.h
swapfile.c	mm/swapfile: skip HugeTLB pages for unuse_vma	2024-10-22 15:56:43 +02:00
truncate.c	mm: Fix missing folio invalidation calls during truncation	2024-09-04 13:25:00 +02:00
usercopy.c
userfaultfd.c
util.c	mm: only enforce minimum stack gap size if it's sensible	2024-10-17 15:21:27 +02:00
vmalloc.c	mm/vmalloc: fix page mapping if vm_area_alloc_pages() with high order fallback to order 0	2024-08-29 17:30:52 +02:00
vmpressure.c
vmscan.c	mm/mglru: fix div-by-zero in vmpressure_calc_level()	2024-08-03 08:49:30 +02:00
vmstat.c
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c
zswap.c