kernel-hacking: create a submenu for scheduler debugging options

Create a submenu 'Scheduler Debugging' for scheduler debugging options.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Changbin Du <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: changbindu

lib/Kconfig.debug

@@ -971,6 +971,8 @@ config WQ_WATCHDOG
 
 endmenu # "Debug lockups and hangs"
 
+menu "Scheduler Debugging"
+
 config SCHED_DEBUG
 	bool "Collect scheduler debugging info"
 	depends on DEBUG_KERNEL && PROC_FS
@@ -997,6 +999,8 @@ config SCHEDSTATS
 	  application, you can say N to avoid the very slight overhead
 	  this adds.
 
+endmenu
+
 config DEBUG_TIMEKEEPING
 	bool "Enable extra timekeeping sanity checking"
 	help