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-rw-r--r--include/linux/swapops.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index bb7afd03a324..a3d435bf9f97 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -490,6 +490,11 @@ static inline void num_poisoned_pages_dec(void)
atomic_long_dec(&num_poisoned_pages);
}
+static inline void num_poisoned_pages_sub(long i)
+{
+ atomic_long_sub(i, &num_poisoned_pages);
+}
+
#else
static inline swp_entry_t make_hwpoison_entry(struct page *page)
@@ -505,6 +510,10 @@ static inline int is_hwpoison_entry(swp_entry_t swp)
static inline void num_poisoned_pages_inc(void)
{
}
+
+static inline void num_poisoned_pages_sub(long i)
+{
+}
#endif
static inline int non_swap_entry(swp_entry_t entry)