source "lib/Kconfig.debug"
-config DEBUG_RWLOCK
- bool "Read-write spinlock debugging"
- depends on DEBUG_KERNEL && SMP
- help
- If you say Y here then read-write lock processing will count how many
- times it has tried to get the lock and issue an error message after
- 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