Commit f9717d28 authored by Nikanth Karthikesan's avatar Nikanth Karthikesan Committed by Linus Torvalds

memcg: check group leader fix

Remove unnecessary codes (...fragments of not-implemented
functionalilty...)
Reported-by: default avatarNikanth Karthikesan <knikanth@suse.de>
Signed-off-by: default avatarNikanth Karthikesan <knikanth@suse.de>
Signed-off-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2c26fdd7
...@@ -2008,25 +2008,10 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss, ...@@ -2008,25 +2008,10 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss,
struct cgroup *old_cont, struct cgroup *old_cont,
struct task_struct *p) 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 * FIXME: It's better to move charges of this process from old
* in effect owned by the leader * 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 = {
......
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