sched: scheduler debugging, enable in Kconfig

enable CONFIG_SCHED_DEBUG in lib/Kconfig.debug.

the runtime overhead of this option is very small.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index da95e10cfd70..fab32a286371 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -105,6 +105,15 @@ config DETECT_SOFTLOCKUP
            can be detected via the NMI-watchdog, on platforms that
            support it.)
 
+config SCHED_DEBUG
+        bool "Collect scheduler debugging info"
+        depends on DEBUG_KERNEL && PROC_FS
+        default y
+        help
+          If you say Y here, the /proc/sched_debug file will be provided
+          that can help debug the scheduler. The runtime overhead of this
+          option is minimal.
+
 config SCHEDSTATS
         bool "Collect scheduler statistics"
         depends on DEBUG_KERNEL && PROC_FS