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memcg: check group leader fix
[safe/jmp/linux-2.6]
/
mm
/
memcontrol.c
diff --git
a/mm/memcontrol.c
b/mm/memcontrol.c
index
b9cd57b
..
b837900
100644
(file)
--- a/
mm/memcontrol.c
+++ b/
mm/memcontrol.c
@@
-2008,25
+2008,10
@@
static void mem_cgroup_move_task(struct cgroup_subsys *ss,
struct cgroup *old_cont,
struct task_struct *p)
{
struct cgroup *old_cont,
struct task_struct *p)
{
- struct mm_struct *mm;
- struct mem_cgroup *mem, *old_mem;
-
- mm = get_task_mm(p);
- if (mm == NULL)
- return;
-
- mem = mem_cgroup_from_cont(cont);
- old_mem = mem_cgroup_from_cont(old_cont);
-
/*
/*
- *
Only thread group leaders are allowed to migrate, the mm_struct is
- *
in effect owned by the leader
+ *
FIXME: It's better to move charges of this process from old
+ *
memcg to new memcg. But it's just on TODO-List now.
*/
*/
- if (!thread_group_leader(p))
- goto out;
-
-out:
- mmput(mm);
}
struct cgroup_subsys mem_cgroup_subsys = {
}
struct cgroup_subsys mem_cgroup_subsys = {