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-rw-r--r--include/linux/pagemap.h12
1 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 09164d2c5c2..4b6c4d8d26b 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -40,14 +40,20 @@ static inline void mapping_set_unevictable(struct address_space *mapping)
set_bit(AS_UNEVICTABLE, &mapping->flags);
}
+static inline void mapping_clear_unevictable(struct address_space *mapping)
+{
+ clear_bit(AS_UNEVICTABLE, &mapping->flags);
+}
+
static inline int mapping_unevictable(struct address_space *mapping)
{
- if (mapping && (mapping->flags & AS_UNEVICTABLE))
- return 1;
- return 0;
+ if (likely(mapping))
+ return test_bit(AS_UNEVICTABLE, &mapping->flags);
+ return !!mapping;
}
#else
static inline void mapping_set_unevictable(struct address_space *mapping) { }
+static inline void mapping_clear_unevictable(struct address_space *mapping) { }
static inline int mapping_unevictable(struct address_space *mapping)
{
return 0;