Merge branch 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (76 commits)
  sched_clock: and multiplier for TSC to gtod drift
  sched_clock: record TSC after gtod
  sched_clock: only update deltas with local reads.
  sched_clock: fix calculation of other CPU
  sched_clock: stop maximum check on NO HZ
  sched_clock: widen the max and min time
  sched_clock: record from last tick
  sched: fix accounting in task delay accounting & migration
  sched: add avg-overlap support to RT tasks
  sched: terminate newidle balancing once at least one task has moved over
  sched: fix warning
  sched: build fix
  sched: sched_clock_cpu() based cpu_clock(), lockdep fix
  sched: export cpu_clock
  sched: make sched_{rt,fair}.c ifdefs more readable
  sched: bias effective_load() error towards failing wake_affine().
  sched: incremental effective_load()
  sched: correct wakeup weight calculations
  sched: fix mult overflow
  sched: update shares on wakeup
  ...

1 files changed, 13 insertions, 1 deletions

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 798b3ab054e..459d601947a 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1194,6 +1194,15 @@ static int cpuset_can_attach(struct cgroup_subsys *ss,
 
 	if (cpus_empty(cs->cpus_allowed) || nodes_empty(cs->mems_allowed))
 		return -ENOSPC;
+	if (tsk->flags & PF_THREAD_BOUND) {
+		cpumask_t mask;
+
+		mutex_lock(&callback_mutex);
+		mask = cs->cpus_allowed;
+		mutex_unlock(&callback_mutex);
+		if (!cpus_equal(tsk->cpus_allowed, mask))
+			return -EINVAL;
+	}
 
 	return security_task_setscheduler(tsk, 0, NULL);
 }
@@ -1207,11 +1216,14 @@ static void cpuset_attach(struct cgroup_subsys *ss,
 	struct mm_struct *mm;
 	struct cpuset *cs = cgroup_cs(cont);
 	struct cpuset *oldcs = cgroup_cs(oldcont);
+	int err;
 
 	mutex_lock(&callback_mutex);
 	guarantee_online_cpus(cs, &cpus);
-	set_cpus_allowed_ptr(tsk, &cpus);
+	err = set_cpus_allowed_ptr(tsk, &cpus);
 	mutex_unlock(&callback_mutex);
+	if (err)
+		return;
 
 	from = oldcs->mems_allowed;
 	to = cs->mems_allowed;