Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

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

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 0efcdca..28afa4c 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -670,6 +670,15 @@ config STACKTRACE
        bool
        depends on STACKTRACE_SUPPORT
 
+config DEBUG_STACK_USAGE
+       bool "Stack utilization instrumentation"
+       depends on DEBUG_KERNEL
+       help
+         Enables the display of the minimum amount of free stack which each
+         task has ever had available in the sysrq-T and sysrq-P debug output.
+
+         This option will slow down process creation somewhat.
+
 config DEBUG_KOBJECT
        bool "kobject debugging"
        depends on DEBUG_KERNEL
@@ -983,6 +992,17 @@ config DEBUG_FORCE_WEAK_PER_CPU
          To ensure that generic code follows the above rules, this
          option forces all percpu variables to be defined as weak.
 
+config DEBUG_PER_CPU_MAPS
+       bool "Debug access to per_cpu maps"
+       depends on DEBUG_KERNEL
+       depends on SMP
+       help
+         Say Y to verify that the per_cpu map being accessed has
+         been set up. This adds a fair amount of code to kernel memory
+         and decreases performance.
+
+         Say N if unsure.
+
 config LKDTM
        tristate "Linux Kernel Dump Test Tool Module"
        depends on DEBUG_FS