linux-hardened/mm
Yongkai Wu 8ace22bce8 hugetlbfs: call VM_BUG_ON_PAGE earlier in free_huge_page()
A stack trace was triggered by VM_BUG_ON_PAGE(page_mapcount(page), page)
in free_huge_page().  Unfortunately, the page->mapping field was set to
NULL before this test.  This made it more difficult to determine the
root cause of the problem.

Move the VM_BUG_ON_PAGE tests earlier in the function so that if they do
trigger more information is present in the page struct.

Link: http://lkml.kernel.org/r/1543491843-23438-1-git-send-email-nic_w@163.com
Signed-off-by: Yongkai Wu <nic_w@163.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-14 15:05:45 -08:00
..
kasan mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
backing-dev.c
balloon_compaction.c
cleancache.c
cma.c
cma.h
cma_debug.c
compaction.c psi: pressure stall information for CPU, memory, and IO 2018-10-26 16:26:32 -07:00
debug.c mm: provide kernel parameter to allow disabling page init poisoning 2018-10-26 16:26:34 -07:00
debug_page_ref.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c vfs: rework data cloning infrastructure 2018-11-02 09:33:08 -07:00
frame_vector.c
frontswap.c
gup.c mm/gup: finish consolidating error handling 2018-11-30 14:56:13 -08:00
gup_benchmark.c mm/gup_benchmark.c: prevent integer overflow in ioctl 2018-10-31 08:54:12 -07:00
highmem.c
hmm.c mm/hmm: invalidate device page table at start of invalidation 2018-10-31 08:54:12 -07:00
huge_memory.c Revert "mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask" 2018-12-08 10:26:20 -08:00
hugetlb.c hugetlbfs: call VM_BUG_ON_PAGE earlier in free_huge_page() 2018-12-14 15:05:45 -08:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h memblock: rename __free_pages_bootmem to memblock_free_pages 2018-10-31 08:54:16 -07:00
interval_tree.c
Kconfig mm: remove CONFIG_HAVE_MEMBLOCK 2018-10-31 08:54:15 -07:00
Kconfig.debug
khugepaged.c mm/khugepaged: fix the xas_create_range() error path 2018-11-30 14:56:15 -08:00
kmemleak-test.c
kmemleak.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
ksm.c
list_lru.c
maccess.c
madvise.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
Makefile mm: remove nobootmem 2018-10-31 08:54:16 -07:00
memblock.c memblock: annotate memblock_is_reserved() with __init_memblock 2018-12-14 15:05:45 -08:00
memcontrol.c mm: handle no memcg case in memcg_kmem_charge() properly 2018-11-03 10:09:37 -07:00
memfd.c memfd: Convert memfd_tag_pins to XArray 2018-10-21 10:46:41 -04:00
memory-failure.c dax: Fix unlock mismatch with updated API 2018-12-04 21:32:00 -08:00
memory.c mm: Fix warning in insert_pfn() 2018-10-31 08:54:17 -07:00
memory_hotplug.c memory_hotplug: cond_resched in __remove_pages 2018-11-03 10:09:38 -07:00
mempolicy.c Revert "mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask" 2018-12-08 10:26:20 -08:00
mempool.c
memtest.c
migrate.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
mincore.c xarray: Replace exceptional entries 2018-09-29 22:47:49 -04:00
mlock.c
mm_init.c
mmap.c mm: brk: downgrade mmap_sem to read when shrinking 2018-10-26 16:26:35 -07:00
mmu_context.c
mmu_gather.c
mmu_notifier.c Revert "mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks" 2018-10-26 16:25:19 -07:00
mmzone.c
mprotect.c
mremap.c mm: mremap: downgrade mmap_sem to read when shrinking 2018-10-26 16:26:35 -07:00
msync.c
nommu.c mm/gup: cache dev_pagemap while pinning pages 2018-10-26 16:38:15 -07:00
oom_kill.c Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2018-10-24 11:22:39 +01:00
page-writeback.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
page_alloc.c mm/page_alloc.c: fix calculation of pgdat->nr_zones 2018-11-30 14:56:14 -08:00
page_counter.c
page_ext.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
page_idle.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
page_io.c for-linus-20181102 2018-11-02 11:25:48 -07:00
page_isolation.c
page_owner.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
page_poison.c virtio, vhost: fixes, tweaks 2018-11-01 14:42:49 -07:00
page_vma_mapped.c mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly 2018-10-31 08:54:11 -07:00
pagewalk.c
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c Merge branch 'for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu 2018-11-01 09:27:57 -07:00
pgtable-generic.c x86/mm: Page size aware flush_tlb_mm_range() 2018-10-09 16:51:11 +02:00
process_vm_access.c
quicklist.c
readahead.c mm: Convert __do_page_cache_readahead to XArray 2018-10-21 10:46:37 -04:00
rmap.c mm/huge_memory: rename freeze_page() to unmap_page() 2018-11-30 14:56:14 -08:00
rodata_test.c
shmem.c XArray updates for 4.20-rc7 2018-12-13 16:35:58 -08:00
slab.c mm, slab: combine kmalloc_caches and kmalloc_dma_caches 2018-10-26 16:26:31 -07:00
slab.h
slab_common.c mm, slab: shorten kmalloc cache names for large sizes 2018-10-26 16:26:32 -07:00
slob.c
slub.c mm, slab: combine kmalloc_caches and kmalloc_dma_caches 2018-10-26 16:26:31 -07:00
sparse-vmemmap.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sparse.c mm/sparse: add common helper to mark all memblocks present 2018-12-14 15:05:45 -08:00
swap.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
swap_cgroup.c
swap_slots.c
swap_state.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
swapfile.c mm/swapfile.c: use kvzalloc for swap_info_struct allocation 2018-11-18 10:15:09 -08:00
truncate.c mm: cleancache: fix corruption on missed inode invalidation 2018-11-30 14:56:14 -08:00
usercopy.c
userfaultfd.c userfaultfd: shmem: add i_size checks 2018-11-30 14:56:14 -08:00
util.c kvfree(): fix misleading comment 2018-10-26 16:26:33 -07:00
vmacache.c mm: get rid of vmacache_flush_all() entirely 2018-09-13 15:18:04 -10:00
vmalloc.c vfree: add debug might_sleep() 2018-10-26 16:26:33 -07:00
vmpressure.c
vmscan.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
vmstat.c mm/vmstat.c: fix NUMA statistics updates 2018-11-18 10:15:10 -08:00
workingset.c Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
z3fold.c z3fold: fix possible reclaim races 2018-11-18 10:15:09 -08:00
zbud.c
zpool.c
zsmalloc.c mm/zsmalloc.c: fix fall-through annotation 2018-10-26 16:26:35 -07:00
zswap.c