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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-24 13:01:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-24 13:01:13 -0800
commit6067d7e4f05e5c08617cf95032867d892035e581 (patch)
treeca8205a2514936bce2cd0942e0806dc43b0436dc /mm
parent71492fd1bdd4734d8efd20fe00ebf31027d86d3c (diff)
parent27df5068e24f2f88de98e95eb6e8dbc9800bf80e (diff)
downloadvexpress-lsk-6067d7e4f05e5c08617cf95032867d892035e581.tar.gz
Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6
* 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6: HWPOISON: Add PROC_FS dependency to hwpoison injector v2
Diffstat (limited to 'mm')
-rw-r--r--mm/Kconfig2
-rw-r--r--mm/memory-failure.c9
2 files changed, 10 insertions, 1 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index ee9f3e0f2b6..17b8947aa7d 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -253,7 +253,7 @@ config MEMORY_FAILURE
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
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 6a0466ed5bf..17299fd4577 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -52,6 +52,8 @@ int sysctl_memory_failure_recovery __read_mostly = 1;
atomic_long_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0);
+#if defined(CONFIG_HWPOISON_INJECT) || defined(CONFIG_HWPOISON_INJECT_MODULE)
+
u32 hwpoison_filter_enable = 0;
u32 hwpoison_filter_dev_major = ~0U;
u32 hwpoison_filter_dev_minor = ~0U;
@@ -164,6 +166,13 @@ int hwpoison_filter(struct page *p)
return 0;
}
+#else
+int hwpoison_filter(struct page *p)
+{
+ return 0;
+}
+#endif
+
EXPORT_SYMBOL_GPL(hwpoison_filter);
/*