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Johannes Weiner 3dae7fec5e mm: memcontrol: remove hierarchy restrictions for swappiness and oom_control 
Per-memcg swappiness and oom killing can currently not be tweaked on a
memcg that is part of a hierarchy, but not the root of that hierarchy.
Users have complained that they can't configure this when they turned on
hierarchy mode.  In fact, with hierarchy mode becoming the default, this
restriction disables the tunables entirely.

But there is no good reason for this restriction.  The settings for
swappiness and OOM killing are taken from whatever memcg whose limit
triggered reclaim and OOM invocation, regardless of its position in the
hierarchy tree.

Allow setting swappiness on any group.  The knob on the root memcg
already reads the global VM swappiness, make it writable as well.

Allow disabling the OOM killer on any non-root memcg.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-04 16:53:58 -07:00
..
backing-dev.c
arch: Mass conversion of smp_mb__*()
2014-04-18 14:20:48 +02:00
balloon_compaction.c
mm: print more details for bad_page()
2014-01-23 16:36:50 -08:00
bootmem.c
mm/bootmem.c: remove unused local `map'
2013-11-13 12:09:09 +09:00
cleancache.c
mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE
2014-01-23 16:36:50 -08:00
compaction.c
mm/compaction: make isolate_freepages start at pageblock boundary
2014-05-06 13:04:59 -07:00
debug-pagealloc.c
…
dmapool.c
mm: Fix printk typo in dmapool.c
2014-05-05 15:44:47 +02:00
early_ioremap.c
mm: create generic early_ioremap() support
2014-04-07 16:36:15 -07:00
fadvise.c
teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long
2013-03-03 22:46:22 -05:00
failslab.c
…
filemap_xip.c
seqcount: Add lockdep functionality to seqcount/seqlock structures
2013-11-06 12:40:26 +01:00
filemap.c
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next
2014-06-03 12:57:53 -07:00
fremap.c
mm: softdirty: make freshly remapped file pages being softdirty unconditionally
2014-06-04 16:53:56 -07:00
frontswap.c
frontswap: fix incorrect zeroing and allocation size for frontswap_map
2013-06-12 16:29:46 -07:00
highmem.c
Some nice cleanups, and even a patch my wife did as a "live" demo for
2012-12-20 08:37:05 -08:00
huge_memory.c
mm/huge_memory.c: complete conversion to pr_foo()
2014-06-04 16:53:58 -07:00
hugetlb_cgroup.c
cgroup: drop const from @buffer of cftype->write_string()
2014-03-19 10:23:54 -04:00
hugetlb.c
hugetlb: ensure hugepage access is denied if hugepages are not supported
2014-05-06 13:04:58 -07:00
hwpoison-inject.c
mm/hwpoison: add '#' to hwpoison_inject
2014-01-21 16:19:48 -08:00
init-mm.c
…
internal.h
mm/readahead.c: inline ra_submit
2014-04-07 16:35:58 -07:00
interval_tree.c
…
iov_iter.c
take iov_iter stuff to mm/iov_iter.c
2014-04-01 23:19:30 -04:00
Kconfig
hugetlb: restrict hugepage_migration_support() to x86_64
2014-06-04 16:53:51 -07:00
Kconfig.debug
…
kmemcheck.c
…
kmemleak-test.c
…
kmemleak.c
mm: postpone the disabling of kmemleak early logging
2014-05-11 17:55:48 +09:00
ksm.c
mm: close PageTail race
2014-03-04 07:55:47 -08:00
list_lru.c
mm: keep page cache radix tree nodes in check
2014-04-03 16:21:01 -07:00
maccess.c
…
madvise.c
mm: madvise: fix MADV_WILLNEED on shmem swapouts
2014-05-23 09:37:29 -07:00
Makefile
block: move mm/bounce.c to block/
2014-05-19 20:01:52 -06:00
memblock.c
memblock: introduce memblock_alloc_range()
2014-06-04 16:53:57 -07:00
memcontrol.c
mm: memcontrol: remove hierarchy restrictions for swappiness and oom_control
2014-06-04 16:53:58 -07:00
memory_hotplug.c
mm/memory_hotplug.c: move register_memory_resource out of the lock_memory_hotplug
2014-01-23 16:36:52 -08:00
memory-failure.c
mm/memory-failure.c: fix memory leak by race between poison and unpoison
2014-05-23 09:37:30 -07:00
memory.c
x86: define _PAGE_NUMA by reusing software bits on the PMD and PTE levels
2014-06-04 16:53:55 -07:00
mempolicy.c
mm, mempolicy: remove per-process flag
2014-04-07 16:35:54 -07:00
mempool.c
mm/mempool: warn about __GFP_ZERO usage
2014-06-04 16:53:58 -07:00
migrate.c
mm: fix swapops.h:131 bug if remap_file_pages raced migration
2014-03-20 22:09:09 -07:00
mincore.c
mm + fs: prepare for non-page entries in page cache radix trees
2014-04-03 16:21:00 -07:00
mlock.c
mm: try_to_unmap_cluster() should lock_page() before mlocking
2014-04-07 16:35:57 -07:00
mm_init.c
mm: bring back /sys/kernel/mm
2014-01-27 21:02:39 -08:00
mmap.c
mm: per-thread vma caching
2014-04-07 16:35:53 -07:00
mmu_context.c
sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm
2014-02-21 08:50:17 +01:00
mmu_notifier.c
mm: audit/fix non-modular users of module_init in core code
2014-01-23 16:36:52 -08:00
mmzone.c
mm: numa: Change page last {nid,pid} into {cpu,pid}
2013-10-09 14:47:45 +02:00
mprotect.c
mm: move mmu notifier call from change_protection to change_pmd_range
2014-04-07 16:35:50 -07:00
mremap.c
mm, thp: close race between mremap() and split_huge_page()
2014-05-11 17:55:48 +09:00
msync.c
…
nobootmem.c
mm/nobootmem.c: mark function as static
2014-04-03 16:21:02 -07:00
nommu.c
mm: fix 'ERROR: do not initialise globals to 0 or NULL' and coding style
2014-04-07 16:35:55 -07:00
oom_kill.c
mm, oom: base root bonus on current usage
2014-01-30 16:56:56 -08:00
page_alloc.c
mm: get rid of __GFP_KMEMCG
2014-06-04 16:53:56 -07:00
page_cgroup.c
mm/page_cgroup.c: mark functions as static
2014-04-03 16:21:02 -07:00
page_io.c
Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block
2014-01-30 11:19:05 -08:00
page_isolation.c
mm: memory-hotplug: enable memory hotplug to handle hugepage
2013-09-11 15:57:48 -07:00
page-writeback.c
mm/page-writeback.c: fix divide by zero in pos_ratio_polynom
2014-05-06 13:04:58 -07:00
pagewalk.c
mm/pagewalk.c: fix walk_page_range() access of wrong PTEs
2013-10-30 14:27:03 -07:00
percpu-km.c
…
percpu-vm.c
…
percpu.c
percpu: make pcpu_alloc_chunk() use pcpu_mem_free() instead of kfree()
2014-04-14 16:18:06 -04:00
pgtable-generic.c
mm: fix TLB flush race between migration, and change_protection_range
2013-12-18 19:04:51 -08:00
process_vm_access.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-04-12 14:49:50 -07:00
quicklist.c
…
readahead.c
mm/readahead.c: inline ra_submit
2014-04-07 16:35:58 -07:00
rmap.c
mm: softdirty: don't forget to save file map softdiry bit on unmap
2014-06-04 16:53:56 -07:00
shmem.c
mm: Initialize error in shmem_file_aio_read()
2014-04-13 14:10:26 -07:00
slab_common.c
mm: get rid of __GFP_KMEMCG
2014-06-04 16:53:56 -07:00
slab.c
sl[au]b: charge slabs to kmemcg explicitly
2014-06-04 16:53:56 -07:00
slab.h
sl[au]b: charge slabs to kmemcg explicitly
2014-06-04 16:53:56 -07:00
slob.c
mm: slab/slub: use page->list consistently instead of page->lru
2014-04-11 10:06:06 +03:00
slub.c
mm: get rid of __GFP_KMEMCG
2014-06-04 16:53:56 -07:00
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_state.c
swap: add a simple detector for inappropriate swapin readahead
2014-02-06 13:48:51 -08:00
swap.c
mm: thrash detection-based file cache sizing
2014-04-03 16:21:01 -07:00
swapfile.c
mm/swap: fix race on swap_info reuse between swapoff and swapon
2014-02-06 13:48:51 -08:00
truncate.c
mm: filemap: update find_get_pages_tag() to deal with shadow entries
2014-05-06 13:04:59 -07:00
util.c
nick kvfree() from apparmor
2014-05-06 14:02:53 -04:00
vmacache.c
mm,vmacache: optimize overflow system-wide flushing
2014-06-04 16:53:57 -07:00
vmalloc.c
mm/vmalloc.c: enhance vm_map_ram() comment
2014-04-07 16:35:55 -07:00
vmpressure.c
arm, pm, vmpressure: add missing slab.h includes
2014-02-03 13:24:01 -05:00
vmscan.c
mm: only force scan in reclaim when none of the LRUs are big enough.
2014-06-04 16:53:56 -07:00
vmstat.c
mm,vmacache: add debug data
2014-06-04 16:53:57 -07:00
workingset.c
mm: keep page cache radix tree nodes in check
2014-04-03 16:21:01 -07:00
zbud.c
mm/zbud: fix some trivial typos in comments
2013-09-11 15:57:35 -07:00
zsmalloc.c
zsmalloc: Fix CPU hotplug callback registration
2014-03-20 13:43:45 +01:00
zswap.c
Merge branch 'akpm' (incoming from Andrew)
2014-04-07 16:38:06 -07:00