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platform_kernel-5.15
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ANDROID: Export memcg functions to allow module to add new files 

Export cgroup_add_legacy_cftypes and a helper function to allow vendor module to expose additional files in the memory cgroup hierarchy.

Bug: 192052083

Signed-off-by: Liujie Xie <xieliujie@oppo.com>
Change-Id: Ie2b936b3e77c7ab6d740d1bb6d70e03c70a326a7
(cherry picked from commit f41a95eadca98506e627b21f5cc73332bba4d95c)
This commit is contained in:
Liujie Xie 2021-06-25 22:16:33 +08:00 committed by Steve Muckle
parent f50ef59058
commit 326983dc9c
2 changed files with 2 additions and 0 deletions
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1
kernel/cgroup/cgroup.c
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@ -4275,6 +4275,7 @@ int cgroup_add_legacy_cftypes(struct cgroup_subsys *ss, struct cftype *cfts)
cft->flags |= __CFTYPE_NOT_ON_DFL;
return cgroup_add_cftypes(ss, cfts);
}
EXPORT_SYMBOL_GPL(cgroup_add_legacy_cftypes);
/**
* cgroup_file_notify - generate a file modified event for a cgroup_file

1
mm/memcontrol.c
View File

@ -5110,6 +5110,7 @@ struct mem_cgroup *mem_cgroup_from_id(unsigned short id)
WARN_ON_ONCE(!rcu_read_lock_held());
return idr_find(&mem_cgroup_idr, id);
}
EXPORT_SYMBOL_GPL(mem_cgroup_from_id);
static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
{