X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=mm%2FKconfig.debug;h=4b2443254de260d2e05cdecb8d3eea903d91734f;hb=f1db7afd917e54711798c64d78f8f5fb090f950d;hp=8b1a477162dc07242e7a461951bca291cff3dde7;hpb=adff377bb1010ec65aada1f94ef2be7c7805c711;p=linux-2.6-block.git

diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index 8b1a477162dc..4b2443254de2 100644
--- 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