group locking debugging options

Original posting:

	http://lkml.kernel.org/r/20121214184208.D9E5804D@kernel.stglabs.ibm.com

There are quite a few of these, and we want to make sure that
there is one-stop-shopping for lock debugging.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 70dfda3..c0d41df 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -703,6 +703,8 @@ config DEBUG_PREEMPT
          if kernel code uses it in a preemption-unsafe way. Also, the kernel
          will detect preemption count underflows.
 
+menu "Lock Debugging (spinlocks, mutexes, etc...)"
+
 config DEBUG_RT_MUTEXES
        bool "RT Mutex debugging, deadlock detection"
        depends on DEBUG_KERNEL && RT_MUTEXES
@@ -832,12 +834,6 @@ config DEBUG_LOCKDEP
          additional runtime checks to debug itself, at the price
          of more runtime overhead.
 
-config TRACE_IRQFLAGS
-       bool
-       help
-         Enables hooks to interrupt enabling and disabling for
-         either tracing or lock debugging.
-
 config DEBUG_ATOMIC_SLEEP
        bool "Sleep inside atomic section checking"
        select PREEMPT_COUNT
@@ -859,6 +855,14 @@ config DEBUG_LOCKING_API_SELFTESTS
          The following locking APIs are covered: spinlocks, rwlocks,
          mutexes and rwsems.
 
+endmenu # lock debugging
+
+config TRACE_IRQFLAGS
+       bool
+       help
+         Enables hooks to interrupt enabling and disabling for
+         either tracing or lock debugging.
+
 config STACKTRACE
        bool
        depends on STACKTRACE_SUPPORT