commit 27df5068e24f2f88de98e95eb6e8dbc9800bf80e
author Andi Kleen <andi@firstfloor.org> Mon Dec 21 19:56:42 2009 +0100
committer Andi Kleen <ak@linux.intel.com> Mon Dec 21 19:56:42 2009 +0100
tree a93ae4838cc5a1b6c866005bd79777895d0ba7de
parent dd59f6c76b265ed2ff18b497d6105a9511b1feb1

HWPOISON: Add PROC_FS dependency to hwpoison injector v2

The injector filter requires stable_page_flags() which is supplied
by procfs. So make it dependent on that.

Also add ifdefs around the filter code in memory-failure.c so that
when the filter is disabled due to missing dependencies the whole
code still builds.

Reported-by: Ingo Molnar
Signed-off-by: Andi Kleen <ak@linux.intel.com>

mm/Kconfig

diff --git a/mm/Kconfig b/mm/Kconfig
index ee9f3e0..17b8947 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -253,7 +253,7 @@
 
 config HWPOISON_INJECT
 	tristate "HWPoison pages injector"
-	depends on MEMORY_FAILURE && DEBUG_KERNEL
+	depends on MEMORY_FAILURE && DEBUG_KERNEL && PROC_FS
 	select PROC_PAGE_MONITOR
 
 config NOMMU_INITIAL_TRIM_EXCESS