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author | Vladimir Davydov | 2016-03-17 14:18:33 -0700 |
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committer | Linus Torvalds | 2016-03-17 15:09:34 -0700 |
commit | b6ecd2dea4435a771a99c497a6ac5df6d3618c5a (patch) | |
tree | 8787f8b4e131337d729eadf89e01057e0f8f3f49 /scripts/makelst | |
parent | 0fc9f58a90a5012942abf0ae98cfc852afebc0a6 (diff) |
mm: memcontrol: zap memcg_kmem_online helper
As kmem accounting is now either enabled for all cgroups or disabled
system-wide, there's no point in having memcg_kmem_online() helper -
instead one can use memcg_kmem_enabled() and mem_cgroup_online(), as
shrink_slab() now does.
There are only two places left where this helper is used -
__memcg_kmem_charge() and memcg_create_kmem_cache(). The former can
only be called if memcg_kmem_enabled() returned true. Since the cgroup
it operates on is online, mem_cgroup_is_root() check will be enough.
memcg_create_kmem_cache() can't use mem_cgroup_online() helper instead
of memcg_kmem_online(), because it relies on the fact that in
memcg_offline_kmem() memcg->kmem_state is changed before
memcg_deactivate_kmem_caches() is called, but there we can just
open-code the check.
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/makelst')
0 files changed, 0 insertions, 0 deletions