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Michal Hocko f0958906cd mm, vmscan: do not count freed pages as PGDEACTIVATE 
PGDEACTIVATE represents the number of pages moved from the active list
to the inactive list.  At least this sounds like the original motivation
of the counter.  move_active_pages_to_lru, however, counts pages which
got freed in the mean time as deactivated as well.  This is a very rare
event and counting them as deactivation in itself is not harmful but it
makes the code more convoluted than necessary - we have to count both
all pages and those which are freed which is a bit confusing.

After this patch the PGDEACTIVATE should have a slightly more clear
semantic and only count those pages which are moved from the active to
the inactive list which is a plus.

Link: http://lkml.kernel.org/r/20170112211221.17636-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Suggested-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22 16:41:30 -08:00
..
kasan
arm64 updates for 4.11:
2017-02-22 10:46:44 -08:00
backing-dev.c
mm/backing-dev.c: use rb_entry()
2017-02-22 16:41:30 -08:00
balloon_compaction.c
mm: balloon: use general non-lru movable page feature
2016-07-26 16:19:19 -07:00
bootmem.c
mm/bootmem.c: cosmetic improvement of code readability
2017-02-22 16:41:29 -08:00
cleancache.c
cleancache: constify cleancache_ops structure
2016-01-27 09:09:57 -05:00
cma_debug.c
mm/cma_debug: correct size input to bitmap function
2015-07-17 16:39:54 -07:00
cma.c
mm/cma: Cleanup highmem check
2017-01-11 13:56:49 +00:00
cma.h
mm: cma: mark cma_bitmap_maxno() inline in header
2015-08-14 15:56:32 -07:00
compaction.c
mm,compaction: serialize waitqueue_active() checks
2017-02-22 16:41:29 -08:00
debug_page_ref.c
mm/page_ref: add tracepoint to track down page reference manipulation
2016-03-17 15:09:34 -07:00
debug.c
mm, debug: print raw struct page data in __dump_page()
2016-12-12 18:55:08 -08:00
dmapool.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
early_ioremap.c
mm/early_ioremap: use offset_in_page macro
2015-11-05 19:34:48 -08:00
fadvise.c
mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED
2016-12-20 09:48:46 -08:00
failslab.c
mm: fault-inject take over bootstrap kmem_cache check
2016-03-15 16:55:16 -07:00
filemap.c
mm: fix filemap.c kernel-doc warnings
2017-02-22 16:41:29 -08:00
frame_vector.c
mm: replace get_vaddr_frames() write/force parameters with gup_flags
2016-10-19 08:11:24 -07:00
frontswap.c
mm, frontswap: convert frontswap_enabled to static key
2016-07-26 16:19:19 -07:00
gup.c
userfaultfd: hugetlbfs: gup: support VM_FAULT_RETRY
2017-02-22 16:41:28 -08:00
highmem.c
mm/highmem: make nr_free_highpages() handles all highmem zones by itself
2016-05-19 19:12:14 -07:00
huge_memory.c
mm, thp: add new defer+madvise defrag option
2017-02-22 16:41:30 -08:00
hugetlb_cgroup.c
mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size
2016-05-20 17:58:30 -07:00
hugetlb.c
userfaultfd: hugetlbfs: add UFFDIO_COPY support for shared mappings
2017-02-22 16:41:28 -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
mm: Add a user_ns owner to mm_struct and fix ptrace permission checks
2016-11-22 11:49:48 -06:00
internal.h
mm, compaction: add vmstats for kcompactd work
2017-02-22 16:41:29 -08:00
interval_tree.c
mm: replace vma->sharead.linear with vma->shared
2015-02-10 14:30:31 -08:00
Kconfig
mm: THP page cache support for ppc64
2016-12-12 18:55:08 -08:00
Kconfig.debug
PM / Hibernate: allow hibernation with PAGE_POISONING_ZERO
2016-09-13 02:35:27 +02:00
khugepaged.c
mm: get rid of __GFP_OTHER_NODE
2017-01-10 18:31:55 -08:00
kmemcheck.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak-test.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak.c
kmemleak: fix reference to Documentation
2016-12-12 18:55:07 -08:00
ksm.c
mm,ksm: add __GFP_HIGH to the allocation in alloc_stable_node()
2016-10-07 18:46:29 -07:00
list_lru.c
mm/list_lru.c: avoid error-path NULL pointer deref
2016-10-27 18:43:42 -07:00
maccess.c
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
madvise.c
userfaultfd: non-cooperative: avoid MADV_DONTNEED race condition
2017-02-22 16:41:28 -08:00
Makefile
mm/swap: add cache for swap slots allocation
2017-02-22 16:41:30 -08:00
memblock.c
mm/memblock.c: check return value of memblock_reserve() in memblock_virt_alloc_internal()
2017-02-22 16:41:29 -08:00
memcontrol.c
slab: use memcg_kmem_cache_wq for slab destruction operations
2017-02-22 16:41:27 -08:00
memory_hotplug.c
mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next
2017-02-22 16:41:29 -08:00
memory-failure.c
mm: Use owner_priv bit for PageSwapCache, valid when PageSwapBacked
2016-12-25 11:54:48 -08:00
memory.c
userfaultfd: hugetlbfs: fix __mcopy_atomic_hugetlb retry/error processing
2017-02-22 16:41:28 -08:00
mempolicy.c
mm/mempolicy.c: do not put mempolicy before using its nodemask
2017-01-24 16:26:14 -08:00
mempool.c
Revert "mm, mempool: only set __GFP_NOMEMALLOC if there are free elements"
2016-07-28 16:07:41 -07:00
memtest.c
memtest: remove unused header files
2015-09-08 15:35:28 -07:00
migrate.c
mm: Use owner_priv bit for PageSwapCache, valid when PageSwapBacked
2016-12-25 11:54:48 -08:00
mincore.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mlock.c
thp: fix corner case of munlock() of PTE-mapped THPs
2016-11-30 16:32:52 -08:00
mm_init.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
mmap.c
powerpc: do not make the entire heap executable
2017-02-22 16:41:29 -08:00
mmu_context.c
mm/mmu_context, sched/core: Fix mmu_context.h assumption
2016-04-28 11:44:19 +02:00
mmu_notifier.c
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
mmzone.c
mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist()
2017-02-22 16:41:29 -08:00
mprotect.c
mm: mprotect: use pmd_trans_unstable instead of taking the pmd_lock
2017-02-22 16:41:29 -08:00
mremap.c
userfaultfd: non-cooperative: optimize mremap_userfaultfd_complete()
2017-02-22 16:41:28 -08:00
msync.c
mm/msync: use offset_in_page macro
2015-11-05 19:34:48 -08:00
nobootmem.c
mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping
2016-10-11 15:06:33 -07:00
nommu.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
oom_kill.c
oom: print nodemask in the oom report
2016-10-07 18:46:29 -07:00
page_alloc.c
mm: page_alloc: skip over regions of invalid pfns where possible
2017-02-22 16:41:29 -08:00
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/page_ext: support extra space allocation by page_ext user
2016-10-07 18:46:27 -07:00
page_idle.c
mm, vmscan: move lru_lock to the node
2016-07-28 16:07:41 -07:00
page_io.c
writeback: add wbc_to_write_flags()
2016-11-02 10:24:03 -06:00
page_isolation.c
mm, page_alloc: avoid page_to_pfn() when merging buddies
2017-02-22 16:41:27 -08:00
page_owner.c
mm/page_owner: don't define fields on struct page_ext by hard-coding
2016-10-07 18:46:27 -07:00
page_poison.c
mm: check the return value of lookup_page_ext for all call sites
2016-06-03 15:06:22 -07:00
page-writeback.c
block: Use pointer to backing_dev_info from request_queue
2017-02-02 08:20:48 -07:00
pagewalk.c
thp: rename split_huge_page_pmd() to split_huge_pmd()
2016-01-15 17:56:32 -08:00
percpu-km.c
mm: percpu: use pr_fmt to prefix output
2016-03-17 15:09:34 -07:00
percpu-vm.c
percpu: move region iterations out of pcpu_[de]populate_chunk()
2014-09-02 14:46:02 -04:00
percpu.c
Merge branch 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
2016-12-13 12:34:47 -08:00
pgtable-generic.c
mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range
2016-03-17 15:09:34 -07:00
process_vm_access.c
mm: unexport __get_user_pages_unlocked()
2016-12-14 16:04:09 -08:00
quicklist.c
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
readahead.c
mm: don't cap request size based on read-ahead setting
2016-12-12 18:55:08 -08:00
rmap.c
mm, rmap: handle anon_vma_prepare() common case inline
2016-12-12 18:55:08 -08:00
shmem.c
userfaultfd: shmem: avoid leaking blocks and used blocks in UFFDIO_COPY
2017-02-22 16:41:29 -08:00
slab_common.c
slab: use memcg_kmem_cache_wq for slab destruction operations
2017-02-22 16:41:27 -08:00
slab.c
slab: introduce __kmemcg_cache_deactivate()
2017-02-22 16:41:27 -08:00
slab.h
slab: remove synchronous synchronize_sched() from memcg cache deactivation path
2017-02-22 16:41:27 -08:00
slob.c
slab: introduce __kmemcg_cache_deactivate()
2017-02-22 16:41:27 -08:00
slub.c
slub: make sysfs directories for memcg sub-caches optional
2017-02-22 16:41:27 -08:00
sparse-vmemmap.c
treewide: replace obsolete _refok by __ref
2016-08-02 17:31:41 -04:00
sparse.c
mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next
2017-02-22 16:41:29 -08:00
swap_cgroup.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
swap_slots.c
mm/swap: skip readahead only when swap slot cache is enabled
2017-02-22 16:41:30 -08:00
swap_state.c
mm/swap: skip readahead only when swap slot cache is enabled
2017-02-22 16:41:30 -08:00
swap.c
mm/swap: split swap cache into 64MB trunks
2017-02-22 16:41:30 -08:00
swapfile.c
mm/swap: enable swap slots cache usage
2017-02-22 16:41:30 -08:00
truncate.c
mm: Invalidate DAX radix tree entries only if appropriate
2016-12-26 20:29:24 -08:00
usercopy.c
mm/usercopy: Switch to using lm_alias
2017-01-11 13:56:50 +00:00
userfaultfd.c
userfaultfd: hugetlbfs: add UFFDIO_COPY support for shared mappings
2017-02-22 16:41:28 -08:00
util.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
vmacache.c
mm: unrig VMA cache hit ratio
2016-10-07 18:46:27 -07:00
vmalloc.c
mm/vmalloc.c: use rb_entry_safe
2017-02-22 16:41:27 -08:00
vmpressure.c
mm/vmpressure.c: fix subtree pressure detection
2016-02-03 08:28:43 -08:00
vmscan.c
mm, vmscan: do not count freed pages as PGDEACTIVATE
2017-02-22 16:41:30 -08:00
vmstat.c
mm, compaction: add vmstats for kcompactd work
2017-02-22 16:41:29 -08:00
workingset.c
mm: workingset: fix use-after-free in shadow node shrinker
2017-01-07 18:22:40 -08:00
z3fold.c
mm/z3fold.c: avoid modifying HEADLESS page and minor cleanup
2016-06-03 16:02:55 -07:00
zbud.c
mm/zbud.c: use list_last_entry() instead of list_tail_entry()
2016-01-15 11:40:52 -08:00
zpool.c
mm: zsmalloc: constify struct zs_pool name
2015-11-06 17:50:42 -08:00
zsmalloc.c
mm: fix some typos in mm/zsmalloc.c
2017-02-22 16:41:29 -08:00
zswap.c
zswap: disable changing params if init fails
2017-02-03 14:13:19 -08:00