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Subject[PATCH v3 2/2] locking/debug: Add a master lock debugging switch
Date
Add a new master LOCK_DEBUGGING Kconfig option to turn on all the lock
debugging options except the selftests and the torture tests.

Signed-off-by: Waiman Long <longman@redhat.com>
---
lib/Kconfig.debug | 32 +++++++++++++++++++++++++++-----
1 file changed, 27 insertions(+), 5 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 0958192..817d78d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1034,6 +1034,28 @@ config DEBUG_PREEMPT

menu "Lock Debugging (spinlocks, mutexes, etc...)"

+config LOCK_DEBUGGING_SUPPORT
+ bool
+ depends on TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+ default y
+
+config LOCK_DEBUGGING
+ bool "Turn on all lock debugging"
+ depends on DEBUG_KERNEL
+ select DEBUG_SPINLOCK
+ select DEBUG_MUTEXES
+ select DEBUG_RT_MUTEXES if RT_MUTEXES
+ select DEBUG_RWSEMS if RWSEM_SPIN_ON_OWNER
+ select DEBUG_WW_MUTEX_SLOWPATH if LOCK_DEBUGGING_SUPPORT
+ select DEBUG_LOCK_ALLOC if LOCK_DEBUGGING_SUPPORT
+ select PROVE_LOCKING if LOCK_DEBUGGING_SUPPORT
+ select LOCK_STAT if LOCK_DEBUGGING_SUPPORT
+ select DEBUG_LOCKDEP if LOCK_DEBUGGING_SUPPORT
+ select DEBUG_ATOMIC_SLEEP
+ help
+ This turns on all the lock debugging code in the kernel except
+ the selftests and the torture tests.
+
config DEBUG_RT_MUTEXES
bool "RT Mutex debugging, deadlock detection"
depends on DEBUG_KERNEL && RT_MUTEXES
@@ -1060,7 +1082,7 @@ config DEBUG_MUTEXES

config DEBUG_WW_MUTEX_SLOWPATH
bool "Wait/wound mutex debugging: Slowpath testing"
- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+ depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
select DEBUG_LOCK_ALLOC
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
@@ -1084,7 +1106,7 @@ config DEBUG_RWSEMS

config DEBUG_LOCK_ALLOC
bool "Lock debugging: detect incorrect freeing of live locks"
- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+ depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
select DEBUG_RT_MUTEXES if RT_MUTEXES
@@ -1099,7 +1121,7 @@ config DEBUG_LOCK_ALLOC

config PROVE_LOCKING
bool "Lock debugging: prove locking correctness"
- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+ depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
select LOCKDEP
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
@@ -1143,7 +1165,7 @@ config PROVE_LOCKING

config LOCKDEP
bool
- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+ depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
select STACKTRACE
select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC && !SCORE && !X86
select KALLSYMS
@@ -1154,7 +1176,7 @@ config LOCKDEP_SMALL

config LOCK_STAT
bool "Lock usage statistics"
- depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
+ depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
select LOCKDEP
select DEBUG_SPINLOCK
select DEBUG_MUTEXES
--
1.8.3.1
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