[PATCH -tip 2/2] sched: Display autogroup names in /proc/sched_debug.

[Bharata B Rao <bharata@linux.vnet.ibm.com>]

sched: Display autogroup names in /proc/sched_debug.

Add autogroup name to cfs_rq and tasks information in /proc/sched_debug.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
---
 kernel/sched_debug.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -92,6 +92,14 @@ static void print_cfs_group_stats(struct
 #ifdef CONFIG_CGROUP_SCHED
 static char * task_group_path(struct task_group *tg)
 {
+#ifdef CONFIG_SCHED_AUTOGROUP
+	int enabled = ACCESS_ONCE(sysctl_sched_autogroup_enabled);
+
+	if (enabled && tg->autogroup) {
+		autogroup_path(tg, group_path, PATH_MAX);
+		return group_path;
+	}
+#endif
 	/*
 	 * May be NULL if the underlying cgroup isn't fully-created yet
 	 */