kernel_optimize_test/mm
Chris Down e26733e0d0 mm, memcg: throttle allocators based on ancestral memory.high
Prior to this commit, we only directly check the affected cgroup's
memory.high against its usage.  However, it's possible that we are being
reclaimed as a result of hitting an ancestor memory.high and should be
penalised based on that, instead.

This patch changes memory.high overage throttling to use the largest
overage in its ancestors when considering how many penalty jiffies to
charge.  This makes sure that we penalise poorly behaving cgroups in the
same way regardless of at what level of the hierarchy memory.high was
breached.

Fixes: 0e4b01df86 ("mm, memcg: throttle allocators when failing reclaim over memory.high")
Reported-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Chris Down <chris@chrisdown.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>	[5.4.x+]
Link: http://lkml.kernel.org/r/8cd132f84bd7e16cdb8fde3378cdbf05ba00d387.1584036142.git.chris@chrisdown.name
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-03-21 18:56:06 -07:00
..
kasan RISC-V Patches for the 5.6 Merge Window, Part 1 2020-01-31 11:23:29 -08:00
backing-dev.c memcg: fix a crash in wb_workfn when a device disappears 2020-01-31 10:30:36 -08:00
balloon_compaction.c
cleancache.c
cma_debug.c
cma.c
cma.h
compaction.c
debug_page_ref.c
debug.c mm/hotplug: silence a lockdep splat with printk() 2020-01-31 10:30:39 -08:00
dmapool.c
early_ioremap.c mm/early_ioremap.c: use %pa to print resource_size_t variables 2020-01-31 10:30:38 -08:00
fadvise.c
failslab.c
filemap.c mm/filemap.c: clean up filemap_write_and_wait() 2020-01-31 10:30:37 -08:00
frame_vector.c
frontswap.c
gup_benchmark.c mm/gup_benchmark: use proper FOLL_WRITE flags instead of hard-coding "1" 2020-01-31 10:30:38 -08:00
gup.c asm-generic/tlb: rename HAVE_RCU_TABLE_FREE 2020-02-04 03:05:26 +00:00
highmem.c
hmm.c mm: pagewalk: add 'depth' parameter to pte_hole 2020-02-04 03:05:25 +00:00
huge_memory.c mm: fix possible PMD dirty bit lost in set_pmd_migration_entry() 2020-03-06 07:06:09 -06:00
hugetlb_cgroup.c
hugetlb.c
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
Kconfig
Kconfig.debug mm: add generic ptdump 2020-02-04 03:05:25 +00:00
khugepaged.c
kmemleak-test.c
kmemleak.c mm/kmemleak: turn kmemleak_lock and object->lock to raw_spinlock_t 2020-01-31 10:30:36 -08:00
ksm.c
list_lru.c
maccess.c
madvise.c
Makefile mm: add generic ptdump 2020-02-04 03:05:25 +00:00
mapping_dirty_helpers.c
memblock.c memblock: Use __func__ in remaining memblock_dbg() call sites 2020-01-31 10:30:38 -08:00
memcontrol.c mm, memcg: throttle allocators based on ancestral memory.high 2020-03-21 18:56:06 -07:00
memfd.c
memory_hotplug.c mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled 2020-03-06 07:06:09 -06:00
memory-failure.c
memory.c mm: avoid data corruption on CoW fault into PFN-mapped VMA 2020-03-06 07:06:09 -06:00
mempolicy.c mm/mempolicy.c: fix out of bounds write in mpol_parse_str() 2020-01-31 10:30:36 -08:00
mempool.c
memremap.c mm/memory_hotplug: poison memmap in remove_pfn_range_from_zone() 2020-02-04 03:05:23 +00:00
memtest.c
migrate.c mm: pagewalk: add 'depth' parameter to pte_hole 2020-02-04 03:05:25 +00:00
mincore.c mm: pagewalk: add 'depth' parameter to pte_hole 2020-02-04 03:05:25 +00:00
mlock.c
mm_init.c
mmap.c mm: Avoid creating virtual address aliases in brk()/mmap()/mremap() 2020-02-20 10:03:14 +00:00
mmu_context.c
mmu_gather.c asm-generic/tlb: provide MMU_GATHER_TABLE_FREE 2020-02-04 03:05:26 +00:00
mmu_notifier.c
mmzone.c
mprotect.c mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa 2020-03-06 07:06:09 -06:00
mremap.c mm: Avoid creating virtual address aliases in brk()/mmap()/mremap() 2020-02-20 10:03:14 +00:00
msync.c
nommu.c
oom_kill.c mm, oom: dump stack of victim when reaping failed 2020-01-31 10:30:38 -08:00
page_alloc.c mm/memmap_init: update variable name in memmap_init_zone 2020-02-04 03:05:23 +00:00
page_counter.c
page_ext.c
page_idle.c
page_io.c fs: Enable bmap() function to properly return errors 2020-02-03 08:05:37 -05:00
page_isolation.c mm/page_isolation: fix potential warning from user 2020-01-31 10:30:39 -08:00
page_owner.c
page_poison.c
page_vma_mapped.c mm/page_vma_mapped.c: explicitly compare pfn for normal, hugetlbfs and THP page 2020-01-31 10:30:38 -08:00
page-writeback.c
pagewalk.c x86: mm: avoid allocating struct mm_struct on the stack 2020-02-04 03:05:25 +00:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c mm, tree-wide: rename put_user_page*() to unpin_user_page*() 2020-01-31 10:30:38 -08:00
ptdump.c x86: mm: avoid allocating struct mm_struct on the stack 2020-02-04 03:05:25 +00:00
readahead.c
rmap.c
rodata_test.c
shmem.c tmpfs: deny and force are not huge mount options 2020-02-18 15:07:30 -05:00
shuffle.c
shuffle.h
slab_common.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
slab.c
slab.h
slob.c
slub.c mm: slub: be more careful about the double cmpxchg of freelist 2020-03-18 09:40:32 -07:00
sparse-vmemmap.c
sparse.c mm/hotplug: fix hot remove failure in SPARSEMEM|!VMEMMAP case 2020-03-21 18:56:06 -07:00
swap_cgroup.c
swap_slots.c
swap_state.c
swap.c mm: devmap: refactor 1-based refcounting for ZONE_DEVICE pages 2020-01-31 10:30:37 -08:00
swapfile.c mm/swapfile.c: fix a comment in sys_swapon() 2020-02-21 11:22:15 -08:00
truncate.c
usercopy.c
userfaultfd.c
util.c
vmacache.c
vmalloc.c
vmpressure.c
vmscan.c mm/vmscan.c: don't round up scan size for online memory cgroup 2020-02-21 11:22:15 -08:00
vmstat.c
workingset.c
z3fold.c mm/z3fold.c: do not include rwlock.h directly 2020-03-06 07:06:09 -06:00
zbud.c
zpool.c
zsmalloc.c
zswap.c zswap: potential NULL dereference on error in init_zswap() 2020-01-31 10:30:39 -08:00