Johannes Weiner 5af12d0efd memcg: pin execution to current cpu while draining stock ... Commit d1a05b6973 ("memcg do not try to drain per-cpu caches without pages") added a drain_local_stock() call to a preemptible section. The draining task looks up the cpu-local stock twice to set the draining-flag, then to drain the stock and clear the flag again. If the task is migrated to a different CPU in between, noone will clear the flag on the first stock and it will be forever undrainable. Its charge can not be recovered and the cgroup can not be deleted anymore. Properly pin the task to the executing CPU while draining stocks. Signed-off-by: Johannes Weiner <jweiner@redhat.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com Acked-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2011-08-25 16:25:33 -07:00
..
backing-dev.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback	2011-07-26 10:39:54 -07:00
bootmem.c
bounce.c
cleancache.c
compaction.c
debug-pagealloc.c
dmapool.c	devres: fix possible use after free	2011-07-25 20:57:14 -07:00
fadvise.c
failslab.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
filemap_xip.c
filemap.c	mm: clarify the radix_tree exceptional cases	2011-08-03 14:25:24 -10:00
fremap.c
highmem.c	mm: make HASHED_PAGE_VIRTUAL page_address' struct page argument const.	2011-08-17 13:00:20 -07:00
huge_memory.c	mm/huge_memory.c: minor lock simplification in __khugepaged_exit	2011-07-25 20:57:09 -07:00
hugetlb.c	mm: hugetlb: fix coding style issues	2011-07-25 20:57:09 -07:00
hwpoison-inject.c
init-mm.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
internal.h
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
ksm.c
maccess.c
madvise.c
Makefile
memblock.c	mm/memblock.c: avoid abuse of RED_INACTIVE	2011-07-25 20:57:09 -07:00
memcontrol.c	memcg: pin execution to current cpu while draining stock	2011-08-25 16:25:33 -07:00
memory_hotplug.c	mm: extend memory hotplug API to allow memory hotplug in virtual machines	2011-07-25 20:57:08 -07:00
memory-failure.c	HWPoison: add memory_failure_queue()	2011-08-03 11:15:58 -04:00
memory.c	mm/futex: fix futex writes on archs with SW tracking of dirty & young	2011-07-25 20:57:11 -07:00
mempolicy.c	cpusets: randomize node rotor used in cpuset_mem_spread_node()	2011-07-26 16:49:43 -07:00
mempool.c
migrate.c
mincore.c	mm: clarify the radix_tree exceptional cases	2011-08-03 14:25:24 -10:00
mlock.c
mm_init.c
mmap.c	mmap: fix and tidy up overcommit page arithmetic	2011-07-25 20:57:09 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c
nommu.c	mmap: fix and tidy up overcommit page arithmetic	2011-07-25 20:57:09 -07:00
oom_kill.c	oom: task->mm == NULL doesn't mean the memory was freed	2011-08-01 15:24:12 -10:00
page_alloc.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
page_cgroup.c	mm/page_cgroup.c: simplify code by using SECTION_ALIGN_UP() and SECTION_ALIGN_DOWN() macros	2011-07-25 20:57:09 -07:00
page_io.c
page_isolation.c
page-writeback.c	squeeze max-pause area and drop pass-good area	2011-08-19 22:42:07 +08:00
pagewalk.c	pagewalk: fix code comment for THP	2011-07-25 20:57:09 -07:00
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
prio_tree.c
quicklist.c
readahead.c
rmap.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback	2011-07-26 10:39:54 -07:00
shmem.c	mm: clarify the radix_tree exceptional cases	2011-08-03 14:25:24 -10:00
slab.c	slab, lockdep: Annotate the locks before using them	2011-08-04 10:18:00 +02:00
slob.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
slub.c	slub: Fix partial count comparison confusion	2011-08-09 21:12:31 +03:00
sparse-vmemmap.c
sparse.c	mm: make some struct page's const	2011-07-25 20:57:07 -07:00
swap_state.c
swap.c
swapfile.c	mm: let swap use exceptional entries	2011-08-03 14:25:22 -10:00
thrash.c	mm: swap-token: add a comment for priority aging	2011-07-25 20:57:08 -07:00
truncate.c	mm: a few small updates for radix-swap	2011-08-03 14:25:24 -10:00
util.c
vmalloc.c	mm: fix wrong vmap address calculations with odd NR_CPUS values	2011-08-14 12:32:52 -07:00
vmscan.c	memcg: add memory.vmscan_stat	2011-07-26 16:49:42 -07:00
vmstat.c