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-rw-r--r--mm/memory-failure.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 117ef15..2d5f122 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -49,10 +49,12 @@ int sysctl_memory_failure_recovery __read_mostly = 1;
atomic_long_t mce_bad_pages __read_mostly = ATOMIC_LONG_INIT(0);
+u32 hwpoison_filter_enable = 0;
u32 hwpoison_filter_dev_major = ~0U;
u32 hwpoison_filter_dev_minor = ~0U;
u64 hwpoison_filter_flags_mask;
u64 hwpoison_filter_flags_value;
+EXPORT_SYMBOL_GPL(hwpoison_filter_enable);
EXPORT_SYMBOL_GPL(hwpoison_filter_dev_major);
EXPORT_SYMBOL_GPL(hwpoison_filter_dev_minor);
EXPORT_SYMBOL_GPL(hwpoison_filter_flags_mask);
@@ -145,6 +147,9 @@ static int hwpoison_filter_task(struct page *p) { return 0; }
int hwpoison_filter(struct page *p)
{
+ if (!hwpoison_filter_enable)
+ return 0;
+
if (hwpoison_filter_dev(p))
return -EINVAL;