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mm: hugetlb_cgroup: convert to lockless page counters

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Abandon the spinlock-protected byte counters in favor of the unlocked
page counters in the hugetlb controller as well.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: 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>
This commit is contained in:
Johannes Weiner
2014-12-10 15:42:34 -08:00
committed by Linus Torvalds
parent 3e32cb2e0a
commit 71f87bee38
4 changed files with 63 additions and 50 deletions
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init/Kconfig
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@@ -1051,7 +1051,8 @@ config MEMCG_KMEM
config CGROUP_HUGETLB
bool "HugeTLB Resource Controller for Control Groups"
depends on RESOURCE_COUNTERS && HUGETLB_PAGE
depends on HUGETLB_PAGE
select PAGE_COUNTER
default n
help
Provides a cgroup Resource Controller for HugeTLB pages.