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linux/mm
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Roman Gushchin 5f93ad6743 mm: treat memory.low value inclusive 
If memcg's usage is equal to the memory.low value, avoid reclaiming from
this cgroup while there is a surplus of reclaimable memory.

This sounds more logical and also matches memory.high and memory.max
behavior: both are inclusive.

Empty cgroups are not considered protected, so MEMCG_LOW events are not
emitted for empty cgroups, if there is no more reclaimable memory in the
system.

Link: http://lkml.kernel.org/r/20180406122132.GA7185@castle
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-06-07 17:34:35 -07:00
..
kasan
kasan: fix memory hotplug during boot
2018-05-25 18:12:11 -07:00
backing-dev.c
bdi: Move cgroup bdi_writeback to a dedicated low concurrency workqueue
2018-05-23 15:28:50 -06:00
balloon_compaction.c
virtio_balloon: fix deadlock on OOM
2017-11-14 23:57:38 +02:00
bootmem.c
mm: docs: fix parameter names mismatch
2018-02-06 18:32:48 -08:00
cleancache.c
docs/vm: rename documentation files to .rst
2018-04-16 14:18:15 -06:00
cma_debug.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cma.c
Revert "mm/cma: manage the memory of the CMA area by using the ZONE_MOVABLE"
2018-05-24 10:07:50 -07:00
cma.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compaction.c
Revert "mm/cma: manage the memory of the CMA area by using the ZONE_MOVABLE"
2018-05-24 10:07:50 -07:00
debug_page_ref.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
debug.c
mm/debug.c: provide useful debugging information for VM_BUG
2018-01-04 16:45:09 -08:00
dmapool.c
lib/vsprintf.c: remove %Z support
2017-02-27 18:43:47 -08:00
early_ioremap.c
mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep
2017-12-11 14:54:44 +01:00
fadvise.c
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
2018-04-02 20:16:10 +02:00
failslab.c
mm: make should_failslab always available for fault injection
2018-04-05 21:36:26 -07:00
filemap.c
mm/filemap.c: fix NULL pointer in page_cache_tree_insert()
2018-04-20 17:18:36 -07:00
frame_vector.c
mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'
2017-12-14 16:00:48 -08:00
frontswap.c
docs/vm: rename documentation files to .rst
2018-04-16 14:18:15 -06:00
gup_benchmark.c
mm/gup_benchmark: handle gup failures
2018-04-13 17:10:27 -07:00
gup.c
mm: introduce ARCH_HAS_PTE_SPECIAL
2018-06-07 17:34:35 -07:00
highmem.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hmm.c
Merge branch 'mm-rst' into docs-next
2018-04-16 14:25:08 -06:00
huge_memory.c
There's been a fair amount of work in the docs tree this time around,
2018-06-04 12:34:27 -07:00
hugetlb_cgroup.c
mm: rename page_counter's count/limit into usage/max
2018-06-07 17:34:35 -07:00
hugetlb.c
Merge branch 'mm-rst' into docs-next
2018-04-16 14:25:08 -06:00
hwpoison-inject.c
mm/memory_failure: Remove unused trapno from memory_failure
2018-01-23 12:17:42 -06:00
init-mm.c
mm: introduce arg_lock to protect arg_start|end and env_start|end in mm_struct
2018-06-07 17:34:34 -07:00
internal.h
Changes for 4.18:
2018-06-05 13:24:20 -07:00
interval_tree.c
mm/interval_tree.c: use vma_pages() helper
2018-01-31 17:18:37 -08:00
Kconfig
mm: introduce ARCH_HAS_PTE_SPECIAL
2018-06-07 17:34:35 -07:00
Kconfig.debug
kmemcheck: rip it out
2017-11-15 18:21:05 -08:00
khugepaged.c
page cache: use xa_lock
2018-04-11 10:28:39 -07:00
kmemleak-test.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak.c
mm: kernel-doc: add missing parameter descriptions
2018-04-05 21:36:27 -07:00
ksm.c
mm/ksm: docs: extend overview comment and make it "DOC:"
2018-04-27 17:19:24 -06:00
list_lru.c
mm: make counting of list_lru_one::nr_items lockless
2018-04-05 21:36:27 -07:00
maccess.c
mm: docs: fix parameter names mismatch
2018-02-06 18:32:48 -08:00
madvise.c
mm/memory_failure: Remove unused trapno from memory_failure
2018-01-23 12:17:42 -06:00
Makefile
mm: restructure memfd code
2018-06-07 17:34:35 -07:00
memblock.c
mm/memblock: introduce PHYS_ADDR_MAX
2018-06-07 17:34:35 -07:00
memcontrol.c
mm: treat memory.low value inclusive
2018-06-07 17:34:35 -07:00
memfd.c
mm: restructure memfd code
2018-06-07 17:34:35 -07:00
memory_hotplug.c
mm/memory_hotplug: fix leftover use of struct page during hotplug
2018-05-25 18:12:11 -07:00
memory-failure.c
mm, migrate: remove reason argument from new_page_t
2018-04-11 10:28:32 -07:00
memory.c
mm: remove odd HAVE_PTE_SPECIAL
2018-06-07 17:34:35 -07:00
mempolicy.c
mm: unclutter THP migration
2018-04-11 10:28:32 -07:00
mempool.c
mempool: Add mempool_init()/mempool_exit()
2018-05-14 13:14:23 -06:00
memtest.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
migrate.c
mm: migrate: fix double call of radix_tree_replace_slot()
2018-05-11 17:28:45 -07:00
mincore.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mlock.c
mm, mlock, vmscan: no more skipping pagevecs
2018-02-21 15:35:42 -08:00
mm_init.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
mmap.c
There's been a fair amount of work in the docs tree this time around,
2018-06-04 12:34:27 -07:00
mmu_context.c
sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>
2017-03-02 08:42:38 +01:00
mmu_notifier.c
mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks
2018-01-31 17:18:38 -08:00
mmzone.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mprotect.c
sched/numa: avoid trapping faults and attempting migration of file-backed dirty pages
2018-04-11 10:28:31 -07:00
mremap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
msync.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nobootmem.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
nommu.c
mm/nommu: remove description of alloc_vm_area
2018-04-05 21:36:26 -07:00
oom_kill.c
mm: rename page_counter's count/limit into usage/max
2018-06-07 17:34:35 -07:00
page_alloc.c
mm/page_alloc: remove realsize in free_area_init_core()
2018-06-07 17:34:35 -07:00
page_counter.c
mm: memory.low hierarchical behavior
2018-06-07 17:34:35 -07:00
page_ext.c
mm/page_ext.c: make page_ext_init a noop when CONFIG_PAGE_EXTENSION but nothing uses it
2018-01-31 17:18:39 -08:00
page_idle.c
mm: thp: fix potential clearing to referenced flag in page_idle_clear_pte_refs_one()
2018-04-05 21:36:25 -07:00
page_io.c
block: convert to bio_first_bvec_all & bio_first_page_all
2018-01-06 09:18:00 -07:00
page_isolation.c
mm, migrate: remove reason argument from new_page_t
2018-04-11 10:28:32 -07:00
page_owner.c
mm/page_owner.c: make early_page_owner_param() __init
2018-04-05 21:36:26 -07:00
page_poison.c
mm/page_poison.c: make early_page_poison_param() __init
2018-04-05 21:36:26 -07:00
page_vma_mapped.c
mm, page_vma_mapped: Introduce pfn_in_hpage()
2018-01-22 12:15:57 -08:00
page-writeback.c
writeback: safer lock nesting
2018-04-20 17:18:35 -07:00
pagewalk.c
mm: kernel-doc: add missing parameter descriptions
2018-04-05 21:36:27 -07:00
percpu-internal.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
percpu-km.c
percpu: allow select gfp to be passed to underlying allocators
2018-02-18 05:33:01 -08:00
percpu-stats.c
mm: reuse DEFINE_SHOW_ATTRIBUTE() macro
2018-04-05 21:36:25 -07:00
percpu-vm.c
percpu: allow select gfp to be passed to underlying allocators
2018-02-18 05:33:01 -08:00
percpu.c
arch: remove obsolete architecture ports
2018-04-02 20:20:12 -07:00
pgtable-generic.c
mm: do not lose dirty and accessed bits in pmdp_invalidate()
2018-01-31 17:18:38 -08:00
process_vm_access.c
mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors
2018-02-06 18:32:48 -08:00
quicklist.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
readahead.c
mm: split ->readpages calls to avoid non-contiguous pages lists
2018-06-01 18:37:32 -07:00
rmap.c
Linux 4.17-rc2
2018-04-27 17:13:20 -06:00
rodata_test.c
mm: fix RODATA_TEST failure "rodata_test: test data was not read only"
2017-10-03 17:54:24 -07:00
shmem.c
mm: restructure memfd code
2018-06-07 17:34:35 -07:00
slab_common.c
mm: make should_failslab always available for fault injection
2018-04-05 21:36:26 -07:00
slab.c
slab: __GFP_ZERO is incompatible with a constructor
2018-06-07 17:34:34 -07:00
slab.h
slab, slub: skip unnecessary kasan_cache_shutdown()
2018-04-05 21:36:24 -07:00
slob.c
slab: __GFP_ZERO is incompatible with a constructor
2018-06-07 17:34:34 -07:00
slub.c
mm/slub: remove obsolete comment
2018-06-07 17:34:34 -07:00
sparse-vmemmap.c
mm: merge vmem_altmap_alloc into altmap_alloc_block_buf
2018-01-08 11:46:23 -08:00
sparse.c
mm: sections are not offlined during memory hotremove
2018-05-11 17:28:45 -07:00
swap_cgroup.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
swap_slots.c
mm, memcontrol: move swap charge handling into get_swap_page()
2018-06-07 17:34:34 -07:00
swap_state.c
mm, memcontrol: move swap charge handling into get_swap_page()
2018-06-07 17:34:34 -07:00
swap.c
mm/swap.c: remove @cold parameter description for release_pages()
2018-04-05 21:36:26 -07:00
swapfile.c
mm: fix nr_rotate_swap leak in swapon() error case
2018-05-25 18:12:10 -07:00
truncate.c
page cache: use xa_lock
2018-04-11 10:28:39 -07:00
usercopy.c
usercopy: WARN() on slab cache usercopy region violations
2018-01-15 12:07:48 -08:00
userfaultfd.c
mm/userfaultfd.c: remove duplicate include
2018-02-06 18:32:47 -08:00
util.c
Merge branch 'mm-rst' into docs-next
2018-04-16 14:25:08 -06:00
vmacache.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vmalloc.c
proc: introduce proc_create_seq_private
2018-05-16 07:23:35 +02:00
vmpressure.c
mm, vmpressure: pass-through notification support
2017-07-10 16:32:31 -07:00
vmscan.c
mm: fix the NULL mapping case in __isolate_lru_page()
2018-06-02 09:33:47 -07:00
vmstat.c
proc: introduce proc_create_seq{,_data}
2018-05-16 07:23:35 +02:00
workingset.c
page cache: use xa_lock
2018-04-11 10:28:39 -07:00
z3fold.c
z3fold: fix reclaim lock-ups
2018-05-11 17:28:45 -07:00
zbud.c
mm: docs: fix parameter names mismatch
2018-02-06 18:32:48 -08:00
zpool.c
mm/zpool.c: zpool_evictable: fix mismatch in parameter name and kernel-doc
2018-02-21 15:35:43 -08:00
zsmalloc.c
mm: kernel-doc: add missing parameter descriptions
2018-04-05 21:36:27 -07:00
zswap.c
mm, swap, frontswap: fix THP swap if frontswap enabled
2018-02-21 15:35:43 -08:00