Merge master.kernel.org:/home/rmk/linux-2.6-serial

[linux-2.6] / arch / parisc / Kconfig.debug

diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 8caaed187a1fa11d3781a78368934d059b74e8e5..9166bd1172675c2cbadd1c80de98042005e6c30b 100644 (file)
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -11,4 +11,14 @@ config DEBUG_RWLOCK
           too many attempts.  If you suspect a rwlock problem or a kernel
           hacker asks for this option then say Y.  Otherwise say N.
 
+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 TLB anymore.
+         If in doubt, say "N".
+
 endmenu