diff options
Diffstat (limited to 'include/linux/pagemap.h')
| -rw-r--r-- | include/linux/pagemap.h | 12 |
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; |