Merge commit 'v2.6.27-rc7' into x86/microcode

1 files changed, 2 insertions, 3 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index fba566c51322..0f1f7a7374ba 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -796,6 +796,8 @@ int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask)
 
         if (mem_cgroup_subsys.disabled)
                 return 0;
+        if (!mm)
+                return 0;
 
         rcu_read_lock();
         mem = mem_cgroup_from_task(rcu_dereference(mm->owner));
@@ -1168,9 +1170,6 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss,
         mem = mem_cgroup_from_cont(cont);
         old_mem = mem_cgroup_from_cont(old_cont);
 
-        if (mem == old_mem)
-                goto out;
-
         /*
          * Only thread group leaders are allowed to migrate, the mm_struct is
          * in effect owned by the leader