Commit f07cbebb authored by Waiman Long's avatar Waiman Long Committed by Ingo Molnar
Browse files

locking/Kconfig: Add LOCK_DEBUGGING_SUPPORT to make it more readable 



There are a couples of lock debugging Kconfig options that depends on
the following support options:

 - TRACE_IRQFLAGS_SUPPORT
 - STACKTRACE_SUPPORT
 - LOCKDEP_SUPPORT

That makes those lock debugging options harder to read and understand.
So a new LOCK_DEBUGGING_SUPPORT option is added that is equivalent to
the above three options together. That makes the Kconfig.debug file
more readable.

Signed-off-by: default avatarWaiman Long <longman@redhat.com>
Acked-by: default avatarDavidlohr Bueso <dave@stgolabs.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1522445280-7767-3-git-send-email-longman@redhat.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 5149cbac

lib/Kconfig.debug

+10 −5
Original line number Diff line number Diff line
@@ -1034,6 +1034,11 @@ 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 DEBUG_RT_MUTEXES

	bool "RT Mutex debugging, deadlock detection"

	depends on DEBUG_KERNEL && RT_MUTEXES
@@ -1060,7 +1065,7 @@ 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 +1089,7 @@ 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 +1104,7 @@ 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
@@ -1144,7 +1149,7 @@ 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
@@ -1155,7 +1160,7 @@ 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

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