X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fx86_64%2FKconfig.debug;h=ea31b4c62105cfc808ce0278bee31228dd0bab23;hb=4b88f09364e94b05b66fb1441131e8460495a2f8;hp=3ccf6f4d1068523876634bf36e37f2e1f5699624;hpb=9e43e1b7c7c9872da032442d8e4bb112a02d16f4;p=powerpc.git

diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug
index 3ccf6f4d10..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
@@ -24,16 +27,6 @@ config IOMMU_DEBUG
 	 options. See Documentation/x86_64/boot-options.txt for more
 	 details.
 
-config KPROBES
-	bool "Kprobes"
-	depends on DEBUG_KERNEL
-	help
-	  Kprobes allows you to trap at almost any kernel address and
-	  execute a callback function.  register_kprobe() establishes
-	  a probepoint and specifies the callback.  Kprobes is useful
-	  for kernel debugging, non-intrusive instrumentation and testing.
-	  If in doubt, say "N".
-
 config IOMMU_LEAK
        bool "IOMMU leak tracing"
        depends on DEBUG_KERNEL