vmscan: count the number of times zone_reclaim() scans and fails

[sfrench/cifs-2.6.git] / arch / x86 / Kconfig.debug

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index a345cb5447a8911f97d4cf659459a9d2639d50d4..d105f29bb6bb7c9b75fe3369d66f68f2f3ada5ba 100644 (file)
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -72,15 +72,6 @@ config DEBUG_STACK_USAGE
 
          This option will slow down process creation somewhat.
 
-config DEBUG_PAGEALLOC
-       bool "Debug page memory allocations"
-       depends on DEBUG_KERNEL
-       depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC
-       ---help---
-         Unmap pages from the kernel linear mapping after free_pages().
-         This results in a large slowdown, but helps to find certain types
-         of memory corruptions.
-
 config DEBUG_PER_CPU_MAPS
        bool "Debug access to per_cpu maps"
        depends on DEBUG_KERNEL
@@ -168,14 +159,30 @@ config IOMMU_DEBUG
          options. See Documentation/x86_64/boot-options.txt for more
          details.
 
+config IOMMU_STRESS
+       bool "Enable IOMMU stress-test mode"
+       ---help---
+         This option disables various optimizations in IOMMU related
+         code to do real stress testing of the IOMMU code. This option
+         will cause a performance drop and should only be enabled for
+         testing.
+
 config IOMMU_LEAK
        bool "IOMMU leak tracing"
-       depends on DEBUG_KERNEL
-       depends on IOMMU_DEBUG
+       depends on IOMMU_DEBUG && DMA_API_DEBUG
        ---help---
          Add a simple leak tracer to the IOMMU code. This is useful when you
          are debugging a buggy device driver that leaks IOMMU mappings.
 
+config X86_DS_SELFTEST
+    bool "DS selftest"
+    default y
+    depends on DEBUG_KERNEL
+    depends on X86_DS
+       ---help---
+         Perform Debug Store selftests at boot time.
+         If in doubt, say "N".
+
 config HAVE_MMIOTRACE_SUPPORT
        def_bool y