Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[firefly-linux-kernel-4.4.55.git] / kernel / sched_debug.c

diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 9cf1baf6616af14959b30f00357bbaef09b4a817..87a330a7185fd7c145a341e2d417c5778c4538f6 100644 (file)
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -114,7 +114,9 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
        {
                char path[64];
 
+               rcu_read_lock();
                cgroup_path(task_group(p)->css.cgroup, path, sizeof(path));
+               rcu_read_unlock();
                SEQ_printf(m, " %s", path);
        }
 #endif