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authorNikanth Karthikesan <knikanth@suse.de>2009-01-08 05:08:11 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 19:31:06 +0300
commitf9717d28d673468883df8ac34b47268719ac5a3d (patch)
treeecb16bf21d33c7eaa34bdfb4af3ecfe2ca11a9b6 /mm
parent2c26fdd70c3094fa3e84caf9ef434911933d5477 (diff)
downloadlinux-f9717d28d673468883df8ac34b47268719ac5a3d.tar.xz
memcg: check group leader fix
Remove unnecessary codes (...fragments of not-implemented functionalilty...) Reported-by: Nikanth Karthikesan <knikanth@suse.de> Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Signed-off-by: KAMEZAWA 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: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/memcontrol.c19
1 files 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 = {