[PATCH v4 12/20] sched/debug: Create debugfs folder steal monitor

[Shrikanth Hegde]

Create a debugfs folder called steal_monitor in /sys/kernel/debug/sched

This is going to host debugfs knobs needed for generic steal monitor
that will be introduced in subsequent patches.

Signed-off-by: Shrikanth Hegde <sshegde@xxxxxxxxxxxxx>
---
 kernel/sched/debug.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 106b448cafb6..d1532359fc50 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -633,6 +633,17 @@ static void debugfs_fair_server_init(void)
 	}
 }
 
+#ifdef CONFIG_PREFERRED_CPU
+static void sched_steal_monitor_debugfs_init(void)
+{
+	struct dentry __maybe_unused *sm;
+
+	sm = debugfs_create_dir("steal_monitor", debugfs_sched);
+	if (!sm)
+		return;
+}
+#endif
+
 static __init int sched_init_debug(void)
 {
 	struct dentry __maybe_unused *numa, *llc;
@@ -691,6 +702,10 @@ static __init int sched_init_debug(void)
 	debugfs_ext_server_init();
 #endif
 
+#ifdef CONFIG_PREFERRED_CPU
+	sched_steal_monitor_debugfs_init();
+#endif
+
 	return 0;
 }
 late_initcall(sched_init_debug);
-- 
2.47.3