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Daisuke Nishimura 7dc74be032 memcg: add interface to move charge at task migration 
In current memcg, charges associated with a task aren't moved to the new
cgroup at task migration.  Some users feel this behavior to be strange.
These patches are for this feature, that is, for charging to the new
cgroup and, of course, uncharging from the old cgroup at task migration.

This patch adds "memory.move_charge_at_immigrate" file, which is a flag
file to determine whether charges should be moved to the new cgroup at
task migration or not and what type of charges should be moved.  This
patch also adds read and write handlers of the file.

This patch also adds no-op handlers for this feature.  These handlers will
be implemented in later patches.  And you cannot write any values other
than 0 to move_charge_at_immigrate yet.

Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2010-03-12 15:52:36 -08:00
..
Kconfig Merge branch 'x86-bootmem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-03 08:15:05 -08:00
Kconfig.debug trivial: improve help text for mm debug config options 2009-09-21 15:14:57 +02:00
Makefile make generic_acl slightly more generic 2009-12-16 12:16:49 -05:00
backing-dev.c flusher: Fix PF_FROZEN race 2009-12-03 13:49:43 +01:00
bootmem.c x86: Make 64 bit use early_res instead of bootmem before slab 2010-02-12 09:41:59 -08:00
bounce.c block: remove some includings of blktrace_api.h 2009-06-16 11:19:36 +02:00
debug-pagealloc.c generic debug pagealloc 2009-04-01 08:59:13 -07:00
dmapool.c dmapools: protect page_list walk in show_pools() 2009-06-30 18:56:00 -07:00
fadvise.c readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM 2010-03-06 11:26:25 -08:00
failslab.c failslab: add ability to filter slab caches 2010-02-26 19:19:39 +02:00
filemap.c mm: use rlimit helpers 2010-03-06 11:26:24 -08:00
filemap_xip.c mm: clean up mm_counter 2010-03-06 11:26:23 -08:00
fremap.c mm: clean up mm_counter 2010-03-06 11:26:23 -08:00
highmem.c highmem: Fix debug_kmap_atomic() to also handle KM_IRQ_PTE, KM_NMI, and KM_NMI_PTE 2009-11-10 04:15:47 +01:00
hugetlb.c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
hwpoison-inject.c HWPOISON: Don't do early filtering if filter is disabled 2009-12-16 12:20:01 +01:00
init-mm.c mm: consolidate init_mm definition 2009-06-16 19:47:28 -07:00
internal.h HWPOISON: add an interface to switch off/on all the page filters 2009-12-16 12:19:59 +01:00
kmemcheck.c kmemcheck: add hooks for the page allocator 2009-06-15 15:48:33 +02:00
kmemleak-test.c percpu: clean up percpu variable definitions 2009-06-24 15:13:48 +09:00
kmemleak.c Merge branch 'kmemleak' of git://linux-arm.org/linux-2.6 2009-12-17 16:00:19 -08:00
ksm.c mm: change anon_vma linking to fix multi-process server scalability issue 2010-03-06 11:26:26 -08:00
maccess.c maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write) 2010-01-07 11:58:36 -06:00
madvise.c HWPOISON: Add a madvise() injector for soft page offlining 2009-12-16 12:20:00 +01:00
memcontrol.c memcg: add interface to move charge at task migration 2010-03-12 15:52:36 -08:00
memory-failure.c mm: change anon_vma linking to fix multi-process server scalability issue 2010-03-06 11:26:26 -08:00
memory.c mm: introduce dump_page() and print symbolic flag names 2010-03-12 15:52:28 -08:00
memory_hotplug.c mm: introduce dump_page() and print symbolic flag names 2010-03-12 15:52:28 -08:00
mempolicy.c mm/mempolicy.c: fix indentation of the comments of do_migrate_pages 2010-03-06 11:26:25 -08:00
mempool.c mm: remove broken 'kzalloc' mempool 2009-09-22 07:17:35 -07:00
migrate.c mm/migrate.c: kill anon local variable from migrate_page_copy 2010-03-06 11:26:25 -08:00
mincore.c mm: hugetlb: fix hugepage memory leak in mincore() 2009-12-15 08:53:24 -08:00
mlock.c mm: use rlimit helpers 2010-03-06 11:26:24 -08:00
mm_init.c mm: mminit_loglevel cannot be __meminitdata anymore 2008-08-20 15:40:30 -07:00
mmap.c Add generic sys_old_mmap() 2010-03-12 15:52:32 -08:00
mmu_context.c mm: export use_mm/unuse_mm to modules 2010-01-15 01:43:28 -08:00
mmu_notifier.c ksm: add mmu_notifier set_pte_at_notify() 2009-09-22 07:17:31 -07:00
mmzone.c [ARM] Double check memmap is actually valid with a memmap has unexpected holes V2 2009-05-18 11:22:24 +01:00
mprotect.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
mremap.c mm: change anon_vma linking to fix multi-process server scalability issue 2010-03-06 11:26:26 -08:00
msync.c [CVE-2009-0029] System call wrappers part 13 2009-01-14 14:15:23 +01:00
nommu.c Add generic sys_old_mmap() 2010-03-12 15:52:32 -08:00
oom_kill.c mm: clean up mm_counter 2010-03-06 11:26:23 -08:00
page-writeback.c writeback: remove unused nonblocking and congestion checks 2009-12-03 13:54:25 +01:00
page_alloc.c mm: introduce dump_page() and print symbolic flag names 2010-03-12 15:52:28 -08:00
page_cgroup.c memory hotplug: alloc page from other node in memory online 2009-09-22 07:17:26 -07:00
page_io.c swap: rework map_swap_page() again 2009-12-15 08:53:16 -08:00
page_isolation.c memory hotplug: fix page_zone() calculation in test_pages_isolated() 2008-11-06 15:41:19 -08:00
pagewalk.c mm hugetlb: add hugepage support to pagemap 2009-12-15 08:53:24 -08:00
percpu.c early_res: Add free_early_partial() 2010-02-26 08:25:35 +01:00
prio_tree.c spelling fixes: mm/ 2007-10-20 01:27:18 +02:00
quicklist.c cpumask: use new-style cpumask ops in mm/quicklist. 2009-09-24 09:34:52 +09:30
readahead.c readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM 2010-03-06 11:26:25 -08:00
rmap.c vmscan: detect mapped file pages used only once 2010-03-06 11:26:27 -08:00
shmem.c Fix breakage in shmem.c 2009-12-16 19:48:48 -05:00
slab.c Merge branches 'slab/cleanups', 'slab/failslab', 'slab/fixes' and 'slub/percpu' into slab-for-linus 2010-03-04 12:07:50 +02:00
slob.c slab: remove duplicate kmem_cache_init_late() declarations 2009-08-06 11:36:25 +03:00
slub.c Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
sparse-vmemmap.c sparsemem: Put mem map for one node together. 2010-02-12 09:42:38 -08:00
sparse.c sparsemem: Fix compilation on PowerPC 2010-03-01 17:59:24 -08:00
swap.c mm: remove free_hot_page() 2010-03-06 11:26:25 -08:00
swap_state.c mm: add_to_swap_cache() does not return -EEXIST 2009-09-22 07:17:35 -07:00
swapfile.c mm: add comment on swap_duplicate's error code 2010-03-06 11:26:27 -08:00
thrash.c mm: pass mm to grab_swap_token 2009-06-23 12:50:05 -07:00
truncate.c vfs: Fix vmtruncate() regression 2010-01-13 16:09:33 -08:00
util.c nommu: don't need get_unmapped_area() for NOMMU 2010-01-16 12:15:40 -08:00
vmalloc.c mm: purge fragmented percpu vmap blocks 2010-02-02 12:50:47 -08:00
vmscan.c vmscan: detect mapped file pages used only once 2010-03-06 11:26:27 -08:00
vmstat.c mm: restore zone->all_unreclaimable to independence word 2010-03-06 11:26:25 -08:00