Hugh Dickins 93960f9d44 mm: fix the NULL mapping case in __isolate_lru_page() ...

commit 145e1a71e0 upstream.

George Boole would have noticed a slight error in 4.16 commit
69d763fc6d ("mm: pin address_space before dereferencing it while
isolating an LRU page").  Fix it, to match both the comment above it,
and the original behaviour.

Although anonymous pages are not marked PageDirty at first, we have an
old habit of calling SetPageDirty when a page is removed from swap
cache: so there's a category of ex-swap pages that are easily
migratable, but were inadvertently excluded from compaction's async
migration in 4.16.

Link: http://lkml.kernel.org/r/alpine.LSU.2.11.1805302014001.12558@eggly.anvils
Fixes: 69d763fc6d ("mm: pin address_space before dereferencing it while isolating an LRU page")
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Reported-by:  Ivan Kalvachev <ikalvachev@gmail.com>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-06-06 16:44:39 +02:00

..

kasan

kasan: fix memory hotplug during boot

2018-05-30 07:50:17 +02:00

backing-dev.c

…

balloon_compaction.c

…

bootmem.c

…

cleancache.c

…

cma_debug.c

…

cma.c

cma: fix calculation of aligned offset

2018-01-31 12:55:51 +01:00

cma.h

…

compaction.c

…

debug_page_ref.c

…

debug.c

…

dmapool.c

…

early_ioremap.c

mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep

2018-02-25 11:05:49 +01:00

fadvise.c

mm/fadvise: discard partial page if endbyte is also EOF

2018-05-30 07:50:23 +02:00

failslab.c

…

filemap.c

mm/filemap.c: fix NULL pointer in page_cache_tree_insert()

2018-04-24 09:34:18 +02:00

frame_vector.c

mm: fail get_vaddr_frames() for filesystem-dax mappings

2018-02-28 10:18:34 +01:00

frontswap.c

…

gup.c

proc: do not access cmdline nor environ from file-backed areas

2018-05-19 10:27:00 +02:00

highmem.c

…

huge_memory.c

mm, thp: do not cause memcg oom for thp

2018-05-30 07:50:38 +02:00

hugetlb_cgroup.c

…

hugetlb.c

mm, hugetlbfs: introduce ->split() to vm_operations_struct

2017-12-05 11:24:32 +01:00

hwpoison-inject.c

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init-mm.c

…

internal.h

mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

2018-01-31 12:55:53 +01:00

interval_tree.c

…

Kconfig

mm: don't allow deferred pages with NEED_PER_CPU_KM

2018-05-22 16:57:57 +02:00

Kconfig.debug

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khugepaged.c

mm, thp: do not cause memcg oom for thp

2018-05-30 07:50:38 +02:00

kmemcheck.c

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kmemleak-test.c

…

kmemleak.c

mm/kmemleak.c: wait for scan completion before disabling free

2018-05-30 07:50:39 +02:00

ksm.c

mm/ksm: fix interaction with THP

2018-05-30 07:50:41 +02:00

list_lru.c

mm/list_lru.c: fix list_lru_count_node() to be race free

2017-07-21 07:42:21 +02:00

maccess.c

…

madvise.c

mm/madvise.c: fix madvise() infinite loop under special circumstances

2017-12-05 11:24:32 +01:00

Makefile

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memblock.c

mm/memblock.c: reversed logic in memblock_discard()

2017-08-30 10:21:47 +02:00

memcontrol.c

hwpoison, memcg: forcibly uncharge LRU pages

2018-01-31 12:55:51 +01:00

memory_hotplug.c

mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next

2017-10-21 17:21:36 +02:00

memory-failure.c

mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page

2018-03-24 11:00:21 +01:00

memory.c

mm: avoid spurious 'bad pmd' warning messages

2018-02-28 10:18:33 +01:00

mempolicy.c

mm/mempolicy.c: avoid use uninitialized preferred_node

2018-05-30 07:50:38 +02:00

mempool.c

…

memtest.c

…

migrate.c

Sanitize 'move_pages()' permission checks

2017-08-24 17:12:21 -07:00

mincore.c

…

mlock.c

mlock: fix mlock count can not decrease in race condition

2017-06-07 12:07:49 +02:00

mm_init.c

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mmap.c

mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack

2018-01-31 12:55:51 +01:00

mmu_context.c

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mmu_notifier.c

…

mmzone.c

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mprotect.c

mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries

2017-08-11 08:49:29 -07:00

mremap.c

mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries

2017-08-11 08:49:29 -07:00

msync.c

…

nobootmem.c

mm: discard memblock data later

2017-08-24 17:12:19 -07:00

nommu.c

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oom_kill.c

mm, oom_reaper: gather each vma to prevent leaking TLB entry

2017-12-09 22:01:47 +01:00

page_alloc.c

mm: fix 100% CPU kswapd busyloop on unreclaimable nodes

2018-01-31 12:55:53 +01:00

page_counter.c

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page_ext.c

…

page_idle.c

…

page_io.c

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page_isolation.c

…

page_owner.c

…

page_poison.c

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page-writeback.c

writeback: safer lock nesting

2018-04-24 09:34:18 +02:00

pagewalk.c

mm/pagewalk.c: report holes in hugetlb ranges

2017-11-24 08:33:42 +01:00

percpu-km.c

…

percpu-vm.c

…

percpu.c

percpu: include linux/sched.h for cond_resched()

2018-05-09 09:50:18 +02:00

pgtable-generic.c

…

process_vm_access.c

…

quicklist.c

…

readahead.c

…

rmap.c

mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries

2017-08-11 08:49:29 -07:00

shmem.c

mm/shmem: do not wait for lock_page() in shmem_unused_huge_shrink()

2018-03-28 18:39:22 +02:00

slab_common.c

slub: do not merge cache if slub_debug contains a never-merge flag

2017-10-21 17:21:36 +02:00

slab.c

mm, slab: reschedule cache_reap() on the same CPU

2018-04-24 09:34:09 +02:00

slab.h

…

slob.c

…

slub.c

mm/slub.c: trace free objects at KERN_INFO

2017-06-07 12:07:49 +02:00

sparse-vmemmap.c

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sparse.c

mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next

2017-10-21 17:21:36 +02:00

swap_cgroup.c

mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()

2017-07-05 14:40:17 +02:00

swap_state.c

…

swap.c

…

swapfile.c

swap: divide-by-zero when zero length swap file on ssd

2018-05-30 07:50:40 +02:00

truncate.c

fs: add i_blocksize()

2017-06-14 15:06:00 +02:00

usercopy.c

…

userfaultfd.c

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util.c

Provide a function to create a NUL-terminated string from unterminated data

2018-02-25 11:05:41 +01:00

vmacache.c

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vmalloc.c

mm/vmalloc.c: huge-vmap: fail gracefully on unexpected huge vmap mappings

2017-07-05 14:40:28 +02:00

vmpressure.c

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vmscan.c

mm: fix the NULL mapping case in __isolate_lru_page()

2018-06-06 16:44:39 +02:00

vmstat.c

mm, vmstat: Remove spurious WARN() during zoneinfo print

2018-04-13 19:47:55 +02:00

workingset.c

…

z3fold.c

…

zbud.c

…

zpool.c

…

zsmalloc.c

zsmalloc: calling zs_map_object() from irq is a bug

2017-12-14 09:28:23 +01:00

zswap.c

zswap: don't param_set_charp while holding spinlock

2018-01-17 09:38:52 +01:00