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Glauber Costa 3afe36b1fe memcg: always free struct memcg through schedule_work() 
Right now we free struct memcg with kfree right after a rcu grace period,
but defer it if we need to use vfree() to get rid of that memory area.  We
do that by need, because we need vfree to be called in a process context.

This patch unifies this behavior, by ensuring that even kfree will happen
in a separate thread.  The goal is to have a stable place to call the
upcoming jump label destruction function outside the realm of the
complicated and quite far-reaching cgroup lock (that can't be held when
holding either the cpu_hotplug.lock or jump_label_mutex)

[akpm@linux-foundation.org: tweak comment]
Signed-off-by: Glauber Costa <glommer@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-29 16:22:28 -07:00
..
backing-dev.c
backing-dev: fix wakeup timer races with bdi_unregister()
2012-02-01 16:52:49 +08:00
bootmem.c
mm/bootmem.c: cleanup on addition to bootmem data list
2012-05-29 16:22:24 -07:00
bounce.c
mm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:27 +08:00
cleancache.c
mm: cleancache: Use __read_mostly as appropiate.
2012-01-23 16:08:09 -05:00
compaction.c
mm/memcg: apply add/del_page to lruvec
2012-05-29 16:22:28 -07:00
debug-pagealloc.c
mm, x86: Remove debug_pagealloc_enabled
2011-12-06 09:24:07 +01:00
dmapool.c
mm: fix implicit stat.h usage in dmapool.c
2011-10-31 09:20:12 -04:00
fadvise.c
fadvise: only initiate writeback for specified range with FADV_DONTNEED
2012-01-10 16:30:43 -08:00
failslab.c
switch debugfs to umode_t
2012-01-03 22:54:56 -05:00
filemap_xip.c
mm/filemap_xip.c: fix race condition in xip_file_fault()
2012-02-03 16:16:41 -08:00
filemap.c
mm: move readahead syscall to mm/readahead.c
2012-05-29 16:22:23 -07:00
fremap.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
highmem.c
Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux
2011-11-06 19:44:47 -08:00
huge_memory.c
mm/memcg: apply add/del_page to lruvec
2012-05-29 16:22:28 -07:00
hugetlb.c
hugetlb: fix resv_map leak in error path
2012-05-29 16:22:24 -07:00
hwpoison-inject.c
HWPOISON: Clean up memory_failure() vs. __memory_failure()
2012-01-03 12:06:32 -08:00
init-mm.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
internal.h
mm: compaction: handle incorrect MIGRATE_UNMOVABLE type pageblocks
2012-05-29 16:22:22 -07:00
Kconfig
Cross Memory Attach: make it Kconfigurable
2012-05-29 16:22:20 -07:00
Kconfig.debug
mm: more intensive memory corruption debugging
2012-01-10 16:30:42 -08:00
kmemcheck.c
…
kmemleak-test.c
kmemleak: remove memset by using kzalloc
2011-01-27 18:31:51 +00:00
kmemleak.c
kmemleak: Disable early logging when kmemleak is off by default
2012-01-20 16:57:05 +00:00
ksm.c
ksm: cleanup: introduce find_mergeable_vma()
2012-03-21 17:54:59 -07:00
maccess.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
madvise.c
mm/fs: route MADV_REMOVE to FALLOC_FL_PUNCH_HOLE
2012-05-29 16:22:22 -07:00
Makefile
Cross Memory Attach: make it Kconfigurable
2012-05-29 16:22:20 -07:00
memblock.c
mm/memblock: fix memory leak on extending regions
2012-05-29 16:22:24 -07:00
memcontrol.c
memcg: always free struct memcg through schedule_work()
2012-05-29 16:22:28 -07:00
memory_hotplug.c
mm: print physical addresses consistently with other parts of kernel
2012-05-29 16:22:21 -07:00
memory-failure.c
mm/memory_failure: let the compiler add the function name
2012-05-29 16:22:18 -07:00
memory.c
thp, memcg: split hugepage for memcg oom on cow
2012-05-29 16:22:19 -07:00
mempolicy.c
mm: do_migrate_pages(): rename arguments
2012-05-29 16:22:20 -07:00
mempool.c
mempool: fix first round failure behavior
2012-01-10 16:30:45 -08:00
migrate.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-05-23 17:42:39 -07:00
mincore.c
mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode
2012-03-21 17:54:54 -07:00
mlock.c
vm: avoid using find_vma_prev() unnecessarily
2012-03-06 18:23:36 -08:00
mm_init.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
mmap.c
mm/mmap.c: find_vma(): remove unnecessary if(mm) check
2012-05-29 16:22:19 -07:00
mmu_context.c
mm, counters: remove task argument to sync_mm_rss() and __sync_task_rss_stat()
2012-03-21 17:54:59 -07:00
mmu_notifier.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
mmzone.c
mm: add link from struct lruvec to struct zone
2012-05-29 16:22:26 -07:00
mprotect.c
Merge branch 'akpm' (Andrew's patch-bomb)
2012-03-22 09:04:48 -07:00
mremap.c
mm: collapse security_vm_enough_memory() variants into a single function
2012-02-14 10:45:39 +11:00
msync.c
…
nobootmem.c
mm: remove sparsemem allocation details from the bootmem allocator
2012-05-29 16:22:22 -07:00
nommu.c
kill mm argument of vm_munmap()
2012-04-21 01:58:20 -04:00
oom_kill.c
mm, oom: normalize oom scores to oom_score_adj scale only for userspace
2012-05-29 16:22:24 -07:00
page_alloc.c
mm: add link from struct lruvec to struct zone
2012-05-29 16:22:26 -07:00
page_cgroup.c
page_cgroup: fix horrid swap accounting regression
2012-03-06 08:18:23 -08:00
page_io.c
block: kill off REQ_UNPLUG
2011-03-10 08:52:27 +01:00
page_isolation.c
mm: page_isolation: MIGRATE_CMA isolation functions added
2012-05-21 15:09:33 +02:00
page-writeback.c
writeback: initialize global_dirty_limit
2012-05-06 13:41:58 +08:00
pagewalk.c
mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode
2012-03-21 17:54:54 -07:00
percpu-km.c
percpu: clear memory allocated with the km allocator
2010-10-02 10:28:42 +03:00
percpu-vm.c
percpu: use bitmap_clear
2012-01-20 09:23:16 -08:00
percpu.c
kmemleak: Fix the kmemleak tracking of the percpu areas with !SMP
2012-05-09 10:13:29 -07:00
pgtable-generic.c
arch/tile: allow building Linux with transparent huge pages enabled
2012-05-25 12:48:21 -04:00
prio_tree.c
sanitize <linux/prefetch.h> usage
2011-05-20 12:50:29 -07:00
process_vm_access.c
Fix race in process_vm_rw_core
2012-02-02 12:55:17 -08:00
quicklist.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
readahead.c
mm: move readahead syscall to mm/readahead.c
2012-05-29 16:22:23 -07:00
rmap.c
mm: remove swap token code
2012-05-29 16:22:19 -07:00
shmem.c
tmpfs: support SEEK_DATA and SEEK_HOLE
2012-05-29 16:22:23 -07:00
slab.c
Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
2012-03-28 15:04:26 -07:00
slob.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
slub.c
slub: missing test for partial pages flush work in flush_all()
2012-05-17 18:00:51 -07:00
sparse-vmemmap.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
sparse.c
mm: remove sparsemem allocation details from the bootmem allocator
2012-05-29 16:22:22 -07:00
swap_state.c
mm: fix s390 BUG by __set_page_dirty_no_writeback on swap
2012-04-23 18:19:22 -07:00
swap.c
mm/memcg: apply add/del_page to lruvec
2012-05-29 16:22:28 -07:00
swapfile.c
memcg: fix/change behavior of shared anon at moving task
2012-05-29 16:22:24 -07:00
truncate.c
mm/fs: remove truncate_range
2012-05-29 16:22:23 -07:00
util.c
procfs: mark thread stack correctly in proc/<pid>/maps
2012-03-21 17:54:58 -07:00
vmalloc.c
mm: fix faulty initialization in vmalloc_init()
2012-05-29 16:22:24 -07:00
vmscan.c
mm/memcg: apply add/del_page to lruvec
2012-05-29 16:22:28 -07:00
vmstat.c
mm/vmstat.c: remove debug fs entries on failure of file creation and made extfrag_debug_root dentry local
2012-05-29 16:22:19 -07:00