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@@ -81,6 +81,8 @@ int mm_match_cgroup(const struct mm_struct *mm, const struct mem_cgroup *cgroup)
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return cgroup == mem;
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}
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+extern struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *mem);
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+
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extern int
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mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr);
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extern void mem_cgroup_end_migration(struct mem_cgroup *mem,
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@@ -206,6 +208,11 @@ static inline int task_in_mem_cgroup(struct task_struct *task,
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return 1;
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}
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+static inline struct cgroup_subsys_state *mem_cgroup_css(struct mem_cgroup *mem)
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+{
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+ return NULL;
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+}
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+
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static inline int
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mem_cgroup_prepare_migration(struct page *page, struct mem_cgroup **ptr)
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{
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