Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...

[safe/jmp/linux-2.6] / kernel / sched_debug.c

diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 9cf1baf..3556539 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
@@ -379,15 +381,9 @@ __initcall(init_sched_debug_procfs);
 void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 {
        unsigned long nr_switches;
-       unsigned long flags;
-       int num_threads = 1;
-
-       if (lock_task_sighand(p, &flags)) {
-               num_threads = atomic_read(&p->signal->count);
-               unlock_task_sighand(p, &flags);
-       }
 
-       SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, p->pid, num_threads);
+       SEQ_printf(m, "%s (%d, #threads: %d)\n", p->comm, p->pid,
+                                               get_nr_threads(p));
        SEQ_printf(m,
                "---------------------------------------------------------\n");
 #define __P(F) \