diff options
Diffstat (limited to 'fs/ext4/extents_status.h')
| -rw-r--r-- | fs/ext4/extents_status.h | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h index e86b1f34cfec..691b52613ce4 100644 --- a/fs/ext4/extents_status.h +++ b/fs/ext4/extents_status.h @@ -34,6 +34,7 @@ enum { ES_UNWRITTEN_B, ES_DELAYED_B, ES_HOLE_B, + ES_REFERENCED_B, ES_FLAGS }; @@ -44,6 +45,12 @@ enum { #define EXTENT_STATUS_UNWRITTEN (1 << ES_UNWRITTEN_B) #define EXTENT_STATUS_DELAYED (1 << ES_DELAYED_B) #define EXTENT_STATUS_HOLE (1 << ES_HOLE_B) +#define EXTENT_STATUS_REFERENCED (1 << ES_REFERENCED_B) + +#define ES_TYPE_MASK ((ext4_fsblk_t)(EXTENT_STATUS_WRITTEN | \ + EXTENT_STATUS_UNWRITTEN | \ + EXTENT_STATUS_DELAYED | \ + EXTENT_STATUS_HOLE) << ES_SHIFT) struct ext4_sb_info; struct ext4_extent; @@ -93,24 +100,44 @@ static inline unsigned int ext4_es_status(struct extent_status *es) return es->es_pblk >> ES_SHIFT; } +static inline unsigned int ext4_es_type(struct extent_status *es) +{ + return (es->es_pblk & ES_TYPE_MASK) >> ES_SHIFT; +} + static inline int ext4_es_is_written(struct extent_status *es) { - return (ext4_es_status(es) & EXTENT_STATUS_WRITTEN) != 0; + return (ext4_es_type(es) & EXTENT_STATUS_WRITTEN) != 0; } static inline int ext4_es_is_unwritten(struct extent_status *es) { - return (ext4_es_status(es) & EXTENT_STATUS_UNWRITTEN) != 0; + return (ext4_es_type(es) & EXTENT_STATUS_UNWRITTEN) != 0; } static inline int ext4_es_is_delayed(struct extent_status *es) { - return (ext4_es_status(es) & EXTENT_STATUS_DELAYED) != 0; + return (ext4_es_type(es) & EXTENT_STATUS_DELAYED) != 0; } static inline int ext4_es_is_hole(struct extent_status *es) { - return (ext4_es_status(es) & EXTENT_STATUS_HOLE) != 0; + return (ext4_es_type(es) & EXTENT_STATUS_HOLE) != 0; +} + +static inline void ext4_es_set_referenced(struct extent_status *es) +{ + es->es_pblk |= ((ext4_fsblk_t)EXTENT_STATUS_REFERENCED) << ES_SHIFT; +} + +static inline void ext4_es_clear_referenced(struct extent_status *es) +{ + es->es_pblk &= ~(((ext4_fsblk_t)EXTENT_STATUS_REFERENCED) << ES_SHIFT); +} + +static inline int ext4_es_is_referenced(struct extent_status *es) +{ + return (ext4_es_status(es) & EXTENT_STATUS_REFERENCED) != 0; } static inline ext4_fsblk_t ext4_es_pblock(struct extent_status *es) |