diff options
-rw-r--r-- | kernel/sched.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index b8b9a7dac9b0..70bec4f1edbb 100644 --- a/kernel/sched.c +++ b/kernel/sched.c | |||
@@ -5946,13 +5946,15 @@ int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask) | |||
5946 | 5946 | ||
5947 | rq = task_rq_lock(p, &flags); | 5947 | rq = task_rq_lock(p, &flags); |
5948 | 5948 | ||
5949 | if (cpumask_equal(&p->cpus_allowed, new_mask)) | ||
5950 | goto out; | ||
5951 | |||
5949 | if (!cpumask_intersects(new_mask, cpu_active_mask)) { | 5952 | if (!cpumask_intersects(new_mask, cpu_active_mask)) { |
5950 | ret = -EINVAL; | 5953 | ret = -EINVAL; |
5951 | goto out; | 5954 | goto out; |
5952 | } | 5955 | } |
5953 | 5956 | ||
5954 | if (unlikely((p->flags & PF_THREAD_BOUND) && p != current && | 5957 | if (unlikely((p->flags & PF_THREAD_BOUND) && p != current)) { |
5955 | !cpumask_equal(&p->cpus_allowed, new_mask))) { | ||
5956 | ret = -EINVAL; | 5958 | ret = -EINVAL; |
5957 | goto out; | 5959 | goto out; |
5958 | } | 5960 | } |