Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / mm / Kconfig.debug

diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index 8b1a477162dc07242e7a461951bca291cff3dde7..4b2443254de260d2e05cdecb8d3eea903d91734f 100644 (file)
--- a/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@ -4,6 +4,7 @@ config DEBUG_PAGEALLOC
        depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
        depends on !KMEMCHECK
        select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC
+       select PAGE_GUARD if 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
@@ -22,3 +23,7 @@ config WANT_PAGE_DEBUG_FLAGS
 config PAGE_POISONING
        bool
        select WANT_PAGE_DEBUG_FLAGS
+
+config PAGE_GUARD
+       bool
+       select WANT_PAGE_DEBUG_FLAGS