From f9717d28d673468883df8ac34b47268719ac5a3d Mon Sep 17 00:00:00 2001 From: Nikanth Karthikesan Date: Wed, 7 Jan 2009 18:08:11 -0800 Subject: [PATCH] memcg: check group leader fix Remove unnecessary codes (...fragments of not-implemented functionalilty...) Reported-by: Nikanth Karthikesan Signed-off-by: Nikanth Karthikesan Signed-off-by: KAMEZAWA Hiroyuki Cc: Balbir Singh Cc: Daisuke Nishimura Cc: Hugh Dickins Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index b9cd57b667d6..b83790083087 100644 --- 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 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 = { -- 2.30.2