Yu Zhao 5d3ee42f8f mm/shmem: make find_get_pages_range() work for huge page ... find_get_pages_range() and find_get_pages_range_tag() already correctly increment reference count on head when seeing compound page, but they may still use page index from tail. Page index from tail is always zero, so these functions don't work on huge shmem. This hasn't been a problem because, AFAIK, nobody calls these functions on (huge) shmem. Fix them anyway just in case. Link: http://lkml.kernel.org/r/20190110030838.84446-1-yuzhao@google.com Signed-off-by: Yu Zhao <yuzhao@google.com> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Amir Goldstein <amir73il@gmail.com> Cc: Dave Chinner <david@fromorbit.com> Cc: "Darrick J . Wong" <darrick.wong@oracle.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Souptick Joarder <jrdr.linux@gmail.com> Cc: Hugh Dickins <hughd@google.com> Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.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
cma.c	kasan, mm, arm64: tag non slab memory allocated via pagealloc	2018-12-28 12:11:44 -08:00
cma.h
cma_debug.c	mm: no need to check return value of debugfs_create functions	2019-03-05 21:07:17 -08:00
compaction.c	mm, compaction: capture a page under direct compaction	2019-03-05 21:07:17 -08:00
debug.c	mm/debug.c: fix __dump_page() for poisoned pages	2019-02-21 09:01:00 -08:00
debug_page_ref.c
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
failslab.c	mm: no need to check return value of debugfs_create functions	2019-03-05 21:07:17 -08:00
filemap.c	mm/shmem: make find_get_pages_range() work for huge page	2019-03-05 21:07:20 -08:00
frame_vector.c
frontswap.c
gup.c	mm: update get_user_pages_longterm to migrate pages allocated from CMA region	2019-03-05 21:07:19 -08:00
gup_benchmark.c	mm: no need to check return value of debugfs_create functions	2019-03-05 21:07:17 -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.c	mm: update get_user_pages_longterm to migrate pages allocated from CMA region	2019-03-05 21:07:19 -08:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h	mm, compaction: capture a page under direct compaction	2019-03-05 21:07:17 -08:00
interval_tree.c
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-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
memory_hotplug.c	mm,memory_hotplug: explicitly pass the head to isolate_huge_page	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
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-writeback.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
page_alloc.c	mm: unexport free_reserved_area	2019-03-05 21:07:20 -08:00
page_counter.c
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
pagewalk.c
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
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	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.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
slab_common.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
slob.c
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.c	mm: handle lru_add_drain_all for UP properly	2019-02-21 09:01:00 -08:00
swap_cgroup.c
swap_slots.c
swap_state.c	mm: swap: add comment for swap_vma_readahead	2019-03-05 21:07:16 -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
vmalloc.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
vmpressure.c
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
zpool.c
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