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

mm/memcontrol.c

+2 −17
Original line number Diff line number Diff line
@@ -2008,25 +2008,10 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss, 
				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 = {