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Vinayak Menon 7da300d6a3 mm: ksm: avoid trageted reclaim of ksm pages 
Per Process Reclaim tries to avoid reclaiming of
shared pages by passing the target VMA. For anon and
file pages this works, but not for KSM. This is because
vma_address(page) will not return the intended value
resulting in crashes like this

[From 3.10 kernel]
kernel BUG at kernel/mm/rmap.c:534!
(vma_address+0x28/0x2c) from [<c01eff94>] (try_to_unmap_ksm+0x4c/0x170)
(try_to_unmap_ksm+0x4c/0x170) from [<c01e4834>] (try_to_unmap+0x34/0xa4)
(try_to_unmap+0x34/0xa4) from [<c01c8e64>] (shrink_page_list+0x3f0/0xa34)
(shrink_page_list+0x3f0/0xa34) from [<c01c9688>] (reclaim_pages_from_list)
(reclaim_pages_from_list+0xb0/0x100) from [<c0240ed0>] (reclaim_pte_range)
(reclaim_pte_range+0xf0/0x164) from [<c01e79a4>] (walk_page_range+0x1d0)
(walk_page_range+0x1d0/0x260) from [<c0241ccc>] (reclaim_task_anon+0xb0)
(reclaim_task_anon+0xb0/0x114) from [<c01f8d98>] (swap_fn+0x220/0x460)
(swap_fn+0x220/0x460) from [<c0133a38>] (process_one_work+0x294/0x430)
(process_one_work+0x294/0x430) from [<c0134720>] (worker_thread)
(worker_thread+0x224/0x358) from [<c01390d4>] (kthread+0xa0/0xac)
(kthread+0xa0/0xac) from [<c0105f38>] (ret_from_fork+0x14/0x3c)

CRs-Fixed: 984947
Change-Id: I5208fb68372f7af72868e39399bf545fb7b774f3
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
2016-06-29 15:12:23 -07:00
..
kasan UBSAN: run-time undefined behavior sanity checker 2016-03-22 11:09:57 -07:00
backing-dev.c mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress 2016-02-17 12:31:06 -08:00
balloon_compaction.c mm: page migration trylock newpage at same level as oldpage 2015-11-05 19:34:48 -08:00
bootmem.c mm: Remove __init annotations from free_bootmem_late 2016-03-22 11:03:23 -07:00
cleancache.c
cma.c mm: cma: sleep between retries in cma_alloc 2016-05-18 13:38:15 -07:00
cma.h mm: cma: mark cma_bitmap_maxno() inline in header 2015-08-14 15:56:32 -07:00
cma_debug.c mm/cma_debug: correct size input to bitmap function 2015-07-17 16:39:54 -07:00
compaction.c mm: compaction: fix the page state calculation in too_many_isolated 2016-03-22 11:03:54 -07:00
debug-pagealloc.c Revert "debug-pagealloc: Panic on pagealloc corruption" 2016-03-25 16:04:09 -07:00
debug.c mm: add WasActive page flag 2016-05-31 15:27:11 -07:00
dmapool.c mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
early_ioremap.c mm/early_ioremap: use offset_in_page macro 2015-11-05 19:34:48 -08:00
fadvise.c
failslab.c mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
filemap.c mm: vmstat: add pageoutclean 2016-03-25 16:03:59 -07:00
frame_vector.c mm: fix docbook comment for get_vaddr_frames() 2015-11-05 19:34:48 -08:00
frontswap.c frontswap: allow multiple backends 2015-06-24 17:49:45 -07:00
gup.c mm: introduce VM_LOCKONFAULT 2015-11-05 19:34:48 -08:00
highmem.c
huge_memory.c mm: loosen MADV_NOHUGEPAGE to enable Qemu postcopy on s390 2015-11-20 16:17:32 -08:00
hugetlb.c mm/hugetlb.c: fix resv map memory leak for placeholder entries 2015-12-12 10:15:34 -08:00
hugetlb_cgroup.c mm: make compound_head() robust 2015-11-06 17:50:42 -08:00
hwpoison-inject.c hwpoison: use page_cgroup_ino for filtering by memcg 2015-09-10 13:29:01 -07:00
init-mm.c
internal.h mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask 2016-06-24 15:05:16 -07:00
interval_tree.c
Kconfig mm: Support address range reclaim 2016-06-22 14:44:20 -07:00
Kconfig.debug mm/debug_pagealloc: ask users for default setting of debug_pagealloc 2016-04-29 14:40:10 -07:00
kmemcheck.c
kmemleak-test.c
kmemleak.c kmemleak : Make kmemleak_stack_scan optional using config 2016-03-22 11:03:47 -07:00
ksm.c mm: ksm: avoid trageted reclaim of ksm pages 2016-06-29 15:12:23 -07:00
list_lru.c memcg: simplify and inline __mem_cgroup_from_kmem 2015-11-05 19:34:48 -08:00
maccess.c mm/maccess.c: actually return -EFAULT from strncpy_from_unsafe 2015-11-05 19:34:48 -08:00
madvise.c mm: add a field to store names for private anonymous memory 2016-02-16 13:54:13 -08:00
Makefile mm: process reclaim: vmpressure based process reclaim 2016-06-29 15:11:26 -07:00
memblock.c mm/memblock: disable local irqs while late memblock changes 2016-05-31 15:26:50 -07:00
memcontrol.c memcg: only free spare array when readers are done 2016-02-25 12:01:22 -08:00
memory-failure.c mm: Enhance per process reclaim to consider shared pages 2016-06-22 14:43:57 -07:00
memory.c mm: memory: reduce fault_around_bytes 2016-03-23 21:16:02 -07:00
memory_hotplug.c mm/memory_hotplug.c: check for missing sections in test_pages_in_a_zone() 2015-12-29 17:45:49 -08:00
mempolicy.c mm: add a field to store names for private anonymous memory 2016-02-16 13:54:13 -08:00
mempool.c mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd 2015-11-06 17:50:42 -08:00
memtest.c lib: memtest: Add MEMTEST_ENABLE_DEFAULT option 2016-05-05 15:05:52 -07:00
migrate.c mm: Enhance per process reclaim to consider shared pages 2016-06-22 14:43:57 -07:00
mincore.c mm/mincore: use offset_in_page macro 2015-11-05 19:34:48 -08:00
mlock.c Merge remote-tracking branch 'lsk-44/linux-linaro-lsk-v4.4' into 44rc2 2016-03-23 20:51:00 -07:00
mm_init.c mm: meminit: remove mminit_verify_page_links 2015-06-30 19:44:56 -07:00
mmap.c arm64: Add support for app specific settings 2016-06-07 11:53:27 -07:00
mmu_context.c
mmu_notifier.c mmu-notifier: add clear_young callback 2015-09-10 13:29:01 -07:00
mmzone.c
mprotect.c mm: add a field to store names for private anonymous memory 2016-02-16 13:54:13 -08:00
mremap.c mm/mremap: use offset_in_page macro 2015-11-05 19:34:48 -08:00
msync.c mm/msync: use offset_in_page macro 2015-11-05 19:34:48 -08:00
nobootmem.c mm: Remove __init annotations from free_bootmem_late 2016-03-22 11:03:23 -07:00
nommu.c mm/nommu.c: drop unlikely inside BUG_ON() 2015-11-05 19:34:48 -08:00
oom_kill.c mm, oom: make dump_tasks public 2016-03-22 11:03:30 -07:00
page-writeback.c mm: page-writeback: fix page state calculation in throttle_vm_writeout 2016-03-22 11:03:54 -07:00
page_alloc.c mm: fix cma accounting in zone_watermark_ok 2016-06-13 19:06:15 -07:00
page_counter.c mm: page_counter: let page_counter_try_charge() return bool 2015-11-05 19:34:48 -08:00
page_ext.c mm: introduce idle page tracking 2015-09-10 13:29:01 -07:00
page_idle.c mm: introduce idle page tracking 2015-09-10 13:29:01 -07:00
page_io.c fs: use helper bio_add_page() instead of open coding on bi_io_vec 2015-08-13 12:32:00 -06:00
page_isolation.c mm, page_isolation: make set/unset_migratetype_isolate() file-local 2015-09-08 15:35:28 -07:00
page_owner.c mm/page_owner: ask users about default setting of PAGE_OWNER 2016-05-03 15:53:55 -07:00
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c mm/percpu: use offset_in_page macro 2015-11-05 19:34:48 -08:00
pgtable-generic.c mm,thp: khugepaged: call pte flush at the time of collapse 2016-02-25 12:01:23 -08:00
process_reclaim.c mm: process_reclaim: use unbounded cpu workqueue 2016-06-29 15:12:09 -07:00
process_vm_access.c ptrace: use fsuid, fsgid, effective creds for fs access checks 2016-02-25 12:01:16 -08:00
quicklist.c
readahead.c mm: change initial readahead window size calculation 2016-03-22 11:03:39 -07:00
rmap.c mm: Enhance per process reclaim to consider shared pages 2016-06-22 14:43:57 -07:00
shmem.c ashmem: Add shmem_set_file to mm/shmem.c 2016-01-11 09:48:49 +05:30
showmem.c mm: showmem: make the notifiers atomic 2016-03-22 11:03:55 -07:00
slab.c slab/slub: adjust kmem_cache_alloc_bulk API 2015-11-22 11:58:44 -08:00
slab.h slab/slub: adjust kmem_cache_alloc_bulk API 2015-11-22 11:58:44 -08:00
slab_common.c slab/slub: adjust kmem_cache_alloc_bulk API 2015-11-22 11:58:44 -08:00
slob.c slab/slub: adjust kmem_cache_alloc_bulk API 2015-11-22 11:58:44 -08:00
slub.c mm: slub: call kasan_alloc_pages before freeing pages in slub 2016-03-22 11:10:45 -07:00
sparse-vmemmap.c
sparse.c
swap.c mm: make compound_head() robust 2015-11-06 17:50:42 -08:00
swap_cgroup.c
swap_ratio.c mm: swap_ratio: bail out if there aren't any other swap device 2016-05-31 15:23:38 -07:00
swap_state.c lowmemorykiller: Don't count swap cache pages twice 2016-04-13 11:11:01 -07:00
swapfile.c mm: swap: swap ratio support 2016-03-23 21:19:04 -07:00
truncate.c mm + fs: extends support for cache dropping 2016-03-23 21:24:12 -07:00
userfaultfd.c userfaultfd: avoid mmap_sem read recursion in mcopy_atomic 2015-09-04 16:54:41 -07:00
util.c mm/util: use offset_in_page macro 2015-11-05 19:34:48 -08:00
vmacache.c mm/vmacache: inline vmacache_valid_mm() 2015-11-05 19:34:48 -08:00
vmalloc.c mm: Update is_vmalloc_addr to account for vmalloc savings 2016-03-22 11:03:59 -07:00
vmpressure.c mm: vmpressure: account allocstalls only on higher pressures 2016-03-22 11:03:53 -07:00
vmscan.c mm: Enhance per process reclaim to consider shared pages 2016-06-22 14:43:57 -07:00
vmstat.c mm: add cma pcp list 2016-04-13 11:11:40 -07:00
workingset.c
zbud.c mm: zbud: prevent softirq during zbud alloc, free and reclaim 2016-03-25 16:03:17 -07:00
zcache.c mm: zcache: fix merge issues 2016-06-07 11:57:44 -07:00
zpool.c mm: zsmalloc: constify struct zs_pool name 2015-11-06 17:50:42 -08:00
zsmalloc.c zsmalloc: fix migrate_zspage-zs_free race condition 2016-02-17 12:31:06 -08:00
zswap.c mm/zswap: change incorrect strncmp use to strcmp 2015-12-18 14:25:40 -08:00