X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fx86_64%2FKconfig.debug;h=ea31b4c62105cfc808ce0278bee31228dd0bab23;hb=d1db4ec86c7b1bf5b44d2ed3bf84a4bb53c33b1c;hp=e2c6e64a85ec27318d0a76d51e421301e121dd3e;hpb=51c83a946d5c8bc05eef7828197080f31fa33601;p=powerpc.git

diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug
index e2c6e64a85..ea31b4c621 100644
--- a/arch/x86_64/Kconfig.debug
+++ b/arch/x86_64/Kconfig.debug
@@ -2,12 +2,15 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
-config INIT_DEBUG
-	bool "Debug __init statements"
-	depends on DEBUG_KERNEL
-	help
-	  Fill __init and __initdata at the end of boot. This helps debugging
-	  illegal uses of __init and __initdata after initialization.
+config DEBUG_RODATA
+       bool "Write protect kernel read-only data structures"
+       depends on DEBUG_KERNEL
+       help
+	 Mark the kernel read-only data as write-protected in the pagetables,
+	 in order to catch accidental (and incorrect) writes to such const data.
+	 This option may have a slight performance impact because a portion
+	 of the kernel code won't be covered by a 2MB TLB anymore.
+	 If in doubt, say "N".
 
 config IOMMU_DEBUG
        depends on GART_IOMMU && DEBUG_KERNEL