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Oscar Salvador daf3538ad5 mm,memory_hotplug: explicitly pass the head to isolate_huge_page 
isolate_huge_page() expects we pass the head of hugetlb page to it:

  bool isolate_huge_page(...)
  {
	...
	VM_BUG_ON_PAGE(!PageHead(page), page);
	...
  }

While I really cannot think of any situation where we end up with a
non-head page between hands in do_migrate_range(), let us make sure the
code is as sane as possible by explicitly passing the Head.  Since we
already got the pointer, it does not take us extra effort.

Link: http://lkml.kernel.org/r/20190208090604.975-1-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Anthony Yznaga <anthony.yznaga@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-03-05 21:07:20 -08:00
..
kasan
kasan: fix coccinelle warnings in kasan_p*_table
2019-03-05 21:07:13 -08:00
backing-dev.c
writeback: synchronize sync(2) against cgroup writeback membership switches
2019-01-22 14:39:38 -07:00
balloon_compaction.c
…
cleancache.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
cma_debug.c
mm: no need to check return value of debugfs_create functions
2019-03-05 21:07:17 -08:00
cma.c
kasan, mm, arm64: tag non slab memory allocated via pagealloc
2018-12-28 12:11:44 -08:00
cma.h
…
compaction.c
mm, compaction: capture a page under direct compaction
2019-03-05 21:07:17 -08:00
debug_page_ref.c
…
debug.c
mm/debug.c: fix __dump_page() for poisoned pages
2019-02-21 09:01:00 -08:00
dmapool.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
early_ioremap.c
…
fadvise.c
vfs: implement readahead(2) using POSIX_FADV_WILLNEED
2018-08-30 20:01:32 +02:00
failslab.c
mm: no need to check return value of debugfs_create functions
2019-03-05 21:07:17 -08:00
filemap.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
frame_vector.c
mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'
2017-12-14 16:00:48 -08:00
frontswap.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
gup_benchmark.c
mm: no need to check return value of debugfs_create functions
2019-03-05 21:07:17 -08:00
gup.c
mm: update get_user_pages_longterm to migrate pages allocated from CMA region
2019-03-05 21:07:19 -08:00
highmem.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
hmm.c
mm/hmm: fix memremap.h, move dev_page_fault_t callback to hmm
2018-12-28 12:11:52 -08:00
huge_memory.c
mm: memcontrol: expose THP events on a per-memcg basis
2019-03-05 21:07:19 -08:00
hugetlb_cgroup.c
mm: rename page_counter's count/limit into usage/max
2018-06-07 17:34:35 -07:00
hugetlb.c
mm: update get_user_pages_longterm to migrate pages allocated from CMA region
2019-03-05 21:07:19 -08:00
hwpoison-inject.c
mm/memory_failure: Remove unused trapno from memory_failure
2018-01-23 12:17:42 -06:00
init-mm.c
mm: Allocate the mm_cpumask (mm->cpu_bitmap[]) dynamically based on nr_cpu_ids
2018-07-17 09:35:30 +02:00
internal.h
mm, compaction: capture a page under direct compaction
2019-03-05 21:07:17 -08:00
interval_tree.c
mm/interval_tree.c: use vma_pages() helper
2018-01-31 17:18:37 -08:00
Kconfig
ksm: replace jhash2 with xxhash
2018-12-28 12:11:46 -08:00
Kconfig.debug
mm/page_owner: move config option to mm/Kconfig.debug
2019-03-05 21:07:18 -08:00
khugepaged.c
mm: memcontrol: expose THP events on a per-memcg basis
2019-03-05 21:07:19 -08:00
kmemleak-test.c
…
kmemleak.c
kmemleak: account for tagged pointers when calculating pointer range
2019-02-21 09:01:00 -08:00
ksm.c
mm: ksm: do not block on page lock when searching stable tree
2019-03-05 21:07:19 -08:00
list_lru.c
numa: make "nr_node_ids" unsigned int
2019-03-05 21:07:19 -08:00
maccess.c
Revert "x86/fault: BUG() when uaccess helpers fault on kernel addresses"
2019-02-25 09:10:51 -08:00
madvise.c
mm/mmu_notifier: use structure for invalidate_range_start/end calls v2
2018-12-28 12:11:50 -08:00
Makefile
mm: remove nobootmem
2018-10-31 08:54:16 -07:00
memblock.c
mm: no need to check return value of debugfs_create functions
2019-03-05 21:07:17 -08:00
memcontrol.c
numa: make "nr_node_ids" unsigned int
2019-03-05 21:07:19 -08:00
memfd.c
mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd
2019-03-05 21:07:19 -08:00
memory_hotplug.c
mm,memory_hotplug: explicitly pass the head to isolate_huge_page
2019-03-05 21:07:20 -08:00
memory-failure.c
mm: hwpoison: fix thp split handing in soft_offline_in_use_page()
2019-03-05 21:07:13 -08:00
memory.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
mempolicy.c
mm, mempolicy: fix uninit memory access
2019-03-05 21:07:18 -08:00
mempool.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
memtest.c
…
migrate.c
mm/migrate.c: cleanup expected_page_refs()
2019-03-05 21:07:20 -08:00
mincore.c
Revert "Change mincore() to count "mapped" pages rather than "cached" pages"
2019-01-24 09:04:37 +13:00
mlock.c
dax: remove VM_MIXEDMAP for fsdax and device dax
2018-08-17 16:20:27 -07:00
mm_init.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
mmap.c
mm: fix some typos in mm directory
2019-03-05 21:07:18 -08:00
mmu_context.c
…
mmu_gather.c
mm: Replace call_rcu_sched() with call_rcu()
2018-11-27 09:21:46 -08:00
mmu_notifier.c
mm/mmu_notifier: use structure for invalidate_range_start/end calls v2
2018-12-28 12:11:50 -08:00
mmzone.c
…
mprotect.c
mm: update ptep_modify_prot_commit to take old pte value as arg
2019-03-05 21:07:18 -08:00
mremap.c
mm: speed up mremap by 20x on large regions
2019-01-04 13:13:48 -08:00
msync.c
…
nommu.c
mm/gup: cache dev_pagemap while pinning pages
2018-10-26 16:38:15 -07:00
oom_kill.c
mm,oom: don't kill global init via memory.oom.group
2019-03-05 21:07:19 -08:00
page_alloc.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
page_counter.c
memcg: introduce memory.min
2018-06-07 17:34:36 -07:00
page_ext.c
mm: replace all open encodings for NUMA_NO_NODE
2019-03-05 21:07:14 -08:00
page_idle.c
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
page_io.c
mm/page_io.c: fix polled swap page in
2019-01-04 13:13:48 -08:00
page_isolation.c
mm: only report isolation failures when offlining memory
2018-12-28 12:11:46 -08:00
page_owner.c
mm: no need to check return value of debugfs_create functions
2019-03-05 21:07:17 -08:00
page_poison.c
page_poison: play nicely with KASAN
2019-03-05 21:07:13 -08:00
page_vma_mapped.c
mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly
2018-10-31 08:54:11 -07:00
page-writeback.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
pagewalk.c
mm: kernel-doc: add missing parameter descriptions
2018-04-05 21:36:27 -07:00
percpu-internal.h
…
percpu-km.c
percpu: convert spin_lock_irq to spin_lock_irqsave.
2018-12-18 09:04:08 -08:00
percpu-stats.c
treewide: Use array_size() in vmalloc()
2018-06-12 16:19:22 -07:00
percpu-vm.c
percpu: allow select gfp to be passed to underlying allocators
2018-02-18 05:33:01 -08:00
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
mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors
2018-02-06 18:32:48 -08:00
quicklist.c
…
readahead.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
rmap.c
mm/mmu_notifier: mm/rmap.c: Fix a mmu_notifier range bug in try_to_unmap_one
2019-01-10 02:58:21 -08:00
rodata_test.c
…
shmem.c
mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd
2019-03-05 21:07:19 -08:00
slab_common.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
slab.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
slab.h
memcg: localize memcg_kmem_enabled() check
2019-03-05 21:07:15 -08:00
slob.c
slab: __GFP_ZERO is incompatible with a constructor
2018-06-07 17:34:34 -07:00
slub.c
numa: make "nr_node_ids" unsigned int
2019-03-05 21:07:19 -08:00
sparse-vmemmap.c
mm: remove include/linux/bootmem.h
2018-10-31 08:54:16 -07:00
sparse.c
mm, sparse: pass nid instead of pgdat to sparse_add_one_section()
2018-12-28 12:11:49 -08:00
swap_cgroup.c
…
swap_slots.c
mm, swap, get_swap_pages: use entry_size instead of cluster in parameter
2018-08-22 10:52:44 -07:00
swap_state.c
mm: swap: add comment for swap_vma_readahead
2019-03-05 21:07:16 -08:00
swap.c
mm: handle lru_add_drain_all for UP properly
2019-02-21 09:01:00 -08:00
swapfile.c
numa: make "nr_node_ids" unsigned int
2019-03-05 21:07:19 -08:00
truncate.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
usercopy.c
mm/usercopy.c: no check page span for stack objects
2019-01-08 17:15:11 -08:00
userfaultfd.c
hugetlbfs: revert "use i_mmap_rwsem for more pmd sharing synchronization"
2019-01-08 17:15:11 -08:00
util.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
vmacache.c
mm: get rid of vmacache_flush_all() entirely
2018-09-13 15:18:04 -10:00
vmalloc.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
vmpressure.c
mm/vmpressure.c: convert to use match_string() helper
2018-06-07 17:34:36 -07:00
vmscan.c
numa: make "nr_node_ids" unsigned int
2019-03-05 21:07:19 -08:00
vmstat.c
mm: no need to check return value of debugfs_create functions
2019-03-05 21:07:17 -08:00
workingset.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
z3fold.c
z3fold: fix possible reclaim races
2018-11-18 10:15:09 -08:00
zbud.c
mm: docs: fix parameter names mismatch
2018-02-06 18:32:48 -08:00
zpool.c
mm/zpool.c: zpool_evictable: fix mismatch in parameter name and kernel-doc
2018-02-21 15:35:43 -08:00
zsmalloc.c
mm/zsmalloc.c: fix fall-through annotation
2018-10-26 16:26:35 -07:00
zswap.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00