Merge branch 'master' into for-linus

[pandora-kernel.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 9886cf5..69a3266 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -353,7 +353,7 @@ config SLUB_DEBUG_ON
 config SLUB_STATS
        default n
        bool "Enable SLUB performance statistics"
-       depends on SLUB && SLUB_DEBUG && SYSFS
+       depends on SLUB && SYSFS
        help
          SLUB statistics are useful to debug SLUBs allocation behavior in
          order find ways to optimize the allocator. This should never be
@@ -461,6 +461,15 @@ config DEBUG_MUTEXES
         This feature allows mutex semantics violations to be detected and
         reported.
 
+config BKL
+       bool "Big Kernel Lock" if (SMP || PREEMPT)
+       default y
+       help
+         This is the traditional lock that is used in old code instead
+         of proper locking. All drivers that use the BKL should depend
+         on this symbol.
+         Say Y here unless you are working on removing the BKL.
+
 config DEBUG_LOCK_ALLOC
        bool "Lock debugging: detect incorrect freeing of live locks"
        depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
@@ -482,6 +491,7 @@ config PROVE_LOCKING
        select DEBUG_SPINLOCK
        select DEBUG_MUTEXES
        select DEBUG_LOCK_ALLOC
+       select TRACE_IRQFLAGS
        default n
        help
         This feature enables the kernel to prove that all locking
@@ -596,11 +606,10 @@ config DEBUG_LOCKDEP
          of more runtime overhead.
 
 config TRACE_IRQFLAGS
-       depends on DEBUG_KERNEL
        bool
-       default y
-       depends on TRACE_IRQFLAGS_SUPPORT
-       depends on PROVE_LOCKING
+       help
+         Enables hooks to interrupt enabling and disabling for
+         either tracing or lock debugging.
 
 config DEBUG_SPINLOCK_SLEEP
        bool "Spinlock debugging: sleep-inside-spinlock checking"