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Christoph Lameter bdf3c006b9 vmstat: make vmstat_updater deferrable again and shut down on idle 
[ Upstream commit 0eb77e9880321915322d42913c3b53241739c8aa ]

Currently the vmstat updater is not deferrable as a result of commit
ba4877b9ca ("vmstat: do not use deferrable delayed work for
vmstat_update").  This in turn can cause multiple interruptions of the
applications because the vmstat updater may run at

Make vmstate_update deferrable again and provide a function that folds
the differentials when the processor is going to idle mode thus
addressing the issue of the above commit in a clean way.

Note that the shepherd thread will continue scanning the differentials
from another processor and will reenable the vmstat workers if it
detects any changes.

Fixes: ba4877b9ca ("vmstat: do not use deferrable delayed work for vmstat_update")
Signed-off-by: Christoph Lameter <cl@linux.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-04-03 06:23:21 +02:00
..
kasan kasan: fix shadow_size calculation error in kasan_module_alloc 2018-08-24 13:26:58 +02:00
backing-dev.c writeback: fix the wrong congested state variable definition 2018-04-08 11:51:56 +02:00
balloon_compaction.c virtio_balloon: fix race between migration and ballooning 2016-03-03 15:07:18 -08:00
bootmem.c bootmem: avoid freeing to bootmem after bootmem is done 2015-09-08 15:35:28 -07:00
cleancache.c cleancache: remove limit on the number of cleancache enabled filesystems 2015-04-14 16:49:03 -07:00
cma.c cma: fix calculation of aligned offset 2018-01-31 12:06:09 +01:00
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: pass only pageblock aligned range to pageblock_pfn_to_page 2018-01-17 09:35:26 +01:00
debug-pagealloc.c mm, hwpoison: fixup "mm: check the return value of lookup_page_ext for all call sites" 2017-11-24 11:26:29 +01:00
debug.c mm: get rid of vmacache_flush_all() entirely 2018-09-19 22:49:00 +02:00
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: Fix boot hang with earlyprintk=efi,keep 2018-02-25 11:03:41 +01:00
fadvise.c mm/fadvise.c: fix signed overflow UBSAN complaint 2018-09-15 09:40:38 +02:00
failslab.c mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
filemap.c mm: filemap: avoid unnecessary calls to lock_page when waiting for IO to complete during a read 2018-05-26 08:48:54 +02:00
frame_vector.c mm: replace get_vaddr_frames() write/force parameters with gup_flags 2018-12-17 21:55:16 +01:00
frontswap.c frontswap: allow multiple backends 2015-06-24 17:49:45 -07:00
gup.c proc: do not access cmdline nor environ from file-backed areas 2018-12-17 21:55:17 +01:00
highmem.c mm/highmem: make kmap cache coloring aware 2014-08-06 18:01:22 -07:00
huge_memory.c mremap: properly flush TLB before releasing the page 2018-11-10 07:41:42 -08:00
hugetlb.c hugetlbfs: fix races and page leaks during migration 2019-03-23 08:44:23 +01:00
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 mm: Add a user_ns owner to mm_struct and fix ptrace permission checks 2017-01-06 11:16:11 +01:00
internal.h mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries 2017-08-11 09:08:50 -07:00
interval_tree.c mm: replace vma->sharead.linear with vma->shared 2015-02-10 14:30:31 -08:00
Kconfig mm: don't allow deferred pages with NEED_PER_CPU_KM 2018-05-26 08:48:55 +02:00
Kconfig.debug mm/debug_pagealloc: remove obsolete Kconfig options 2015-01-08 15:10:52 -08:00
kmemcheck.c mm/slab_common: move kmem_cache definition to internal header 2014-10-09 22:25:50 -04:00
kmemleak-test.c mm/kmemleak-test.c: use pr_fmt for logging 2014-06-06 16:08:18 -07:00
kmemleak.c mm/kmemleak.c: wait for scan completion before disabling free 2018-05-30 07:49:06 +02:00
ksm.c mm/ksm: fix interaction with THP 2018-05-30 07:49:08 +02:00
list_lru.c mm/list_lru.c: fix list_lru_count_node() to be race free 2017-07-21 07:44:56 +02:00
maccess.c mm/maccess.c: actually return -EFAULT from strncpy_from_unsafe 2015-11-05 19:34:48 -08:00
madvise.c mm: madvise(MADV_DODUMP): allow hugetlbfs pages 2018-10-10 08:52:11 +02:00
Makefile media updates for v4.3-rc1 2015-09-11 16:42:39 -07:00
memblock.c mm: consider memblock reservations for deferred memory initialization sizing 2017-06-14 13:16:26 +02:00
memcontrol.c mm: memcg: fix use after free in mem_cgroup_iter() 2018-07-25 10:18:16 +02:00
memory-failure.c hwpoison, memcg: forcibly uncharge LRU pages 2018-01-31 12:06:09 +01:00
memory.c mm: replace access_remote_vm() write parameter with gup_flags 2018-12-17 21:55:17 +01:00
memory_hotplug.c mm, memory_hotplug: test_pages_in_a_zone do not pass the end of zone 2019-03-23 08:44:26 +01:00
mempolicy.c numa: change get_mempolicy() to use nr_node_ids instead of MAX_NUMNODES 2019-03-23 08:44:15 +01:00
mempool.c mm/mempool: avoid KASAN marking mempool poison checks as use-after-free 2017-08-12 19:29:09 -07:00
memtest.c memtest: remove unused header files 2015-09-08 15:35:28 -07:00
migrate.c hugetlbfs: fix races and page leaks during migration 2019-03-23 08:44:23 +01:00
mincore.c mm/mincore: use offset_in_page macro 2015-11-05 19:34:48 -08:00
mlock.c mm: mlock: avoid increase mm->locked_vm on mlock() when already mlock2(,MLOCK_ONFAULT) 2018-12-13 09:21:33 +01:00
mm_init.c mm: meminit: remove mminit_verify_page_links 2015-06-30 19:44:56 -07:00
mmap.c mm: enforce min addr even if capable() in expand_downwards() 2019-03-23 08:44:21 +01:00
mmu_context.c mm/mmu_context, sched/core: Fix mmu_context.h assumption 2017-12-25 14:22:09 +01:00
mmu_notifier.c mmu-notifier: add clear_young callback 2015-09-10 13:29:01 -07:00
mmzone.c mm: microoptimize zonelist operations 2015-02-11 17:06:02 -08:00
mprotect.c x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings 2018-08-15 17:42:10 +02:00
mremap.c mremap: properly flush TLB before releasing the page 2018-11-10 07:41:42 -08:00
msync.c mm/msync: use offset_in_page macro 2015-11-05 19:34:48 -08:00
nobootmem.c mm: page_alloc: pass PFN to __free_pages_bootmem 2015-06-30 19:44:55 -07:00
nommu.c mm: replace access_remote_vm() write parameter with gup_flags 2018-12-17 21:55:17 +01:00
oom_kill.c mm, oom: fix use-after-free in oom_kill_process 2019-02-06 19:43:07 +01:00
page-writeback.c mm/page-writeback.c: don't break integrity writeback on ->writepage() error 2019-01-26 09:42:55 +01:00
page_alloc.c mm, page_alloc: do not break __GFP_THISNODE by zonelist reset 2018-07-11 16:03:51 +02:00
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.c: check if page_ext is not prepared 2017-11-24 08:32:25 +01:00
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: fix invalid node in alloc_migrate_target() 2016-04-20 15:41:53 +09:00
page_owner.c mm: check the return value of lookup_page_ext for all call sites 2017-11-24 08:32:25 +01:00
pagewalk.c mm/pagewalk.c: report holes in hugetlb ranges 2017-11-24 08:32:25 +01:00
percpu-km.c percpu: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated 2014-09-02 14:46:05 -04:00
percpu-vm.c percpu: move region iterations out of pcpu_[de]populate_chunk() 2014-09-02 14:46:02 -04:00
percpu.c percpu: include linux/sched.h for cond_resched() 2018-05-16 10:06:46 +02:00
pgtable-generic.c mm,thp: khugepaged: call pte flush at the time of collapse 2016-02-25 12:01:23 -08:00
process_vm_access.c mm: replace get_user_pages_unlocked() write/force parameters with gup_flags 2018-12-17 21:55:16 +01:00
quicklist.c
readahead.c mm, fs: introduce mapping_gfp_constraint() 2015-11-06 17:50:42 -08:00
rmap.c mm/rmap: replace BUG_ON(anon_vma->degree) with VM_WARN_ON 2019-04-03 06:23:18 +02:00
shmem.c tmpfs: fix uninitialized return value in shmem_link 2019-03-23 08:44:34 +01:00
slab.c slab: alien caches must not be initialized if the allocation of the alien cache failed 2019-01-16 22:16:11 +01:00
slab.h slab/slub: adjust kmem_cache_alloc_bulk API 2015-11-22 11:58:44 -08:00
slab_common.c slub: do not merge cache if slub_debug contains a never-merge flag 2017-10-21 17:09:05 +02:00
slob.c slab/slub: adjust kmem_cache_alloc_bulk API 2015-11-22 11:58:44 -08:00
slub.c slub: make ->cpu_partial unsigned int 2018-10-10 08:52:08 +02:00
sparse-vmemmap.c mm/sparse: use memblock apis for early memory allocations 2014-01-21 16:19:47 -08:00
sparse.c mm: use macros from compiler.h instead of __attribute__((...)) 2014-04-07 16:35:54 -07:00
swap.c mm: make compound_head() robust 2015-11-06 17:50:42 -08:00
swap_cgroup.c mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff() 2017-07-05 14:37:15 +02:00
swap_state.c mm: swap: zswap: maybe_preload & refactoring 2015-09-08 15:35:28 -07:00
swapfile.c x86/speculation/l1tf: Limit swap file size to MAX_PA/2 2018-08-15 17:42:10 +02:00
truncate.c mm: cleancache: fix corruption on missed inode invalidation 2018-12-13 09:21:33 +01:00
userfaultfd.c userfaultfd: avoid mmap_sem read recursion in mcopy_atomic 2015-09-04 16:54:41 -07:00
util.c mm: replace get_user_pages_unlocked() write/force parameters with gup_flags 2018-12-17 21:55:16 +01:00
vmacache.c mm: get rid of vmacache_flush_all() entirely 2018-09-19 22:49:00 +02:00
vmalloc.c mm/vmalloc: fix size check for remap_vmalloc_range_partial() 2019-03-23 08:44:37 +01:00
vmpressure.c mm: vmpressure: fix sending wrong events on underflow 2017-03-12 06:37:25 +01:00
vmscan.c mm: fix the NULL mapping case in __isolate_lru_page() 2018-06-06 16:46:23 +02:00
vmstat.c vmstat: make vmstat_updater deferrable again and shut down on idle 2019-04-03 06:23:21 +02:00
workingset.c mm: workingset: fix crash in shadow node shrinker caused by replace_page_cache_page() 2016-10-28 03:01:34 -04:00
zbud.c mm: zsmalloc: constify struct zs_pool name 2015-11-06 17:50:42 -08:00
zpool.c mm: zsmalloc: constify struct zs_pool name 2015-11-06 17:50:42 -08:00
zsmalloc.c zsmalloc: fix zs_can_compact() integer overflow 2016-05-18 17:06:44 -07:00
zswap.c zswap: re-check zswap_is_full() after do zswap_shrink() 2018-09-05 09:18:36 +02:00