diff options
Diffstat (limited to 'fs/btrfs/extent_map.h')
| -rw-r--r-- | fs/btrfs/extent_map.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h index 93fba716d7f..e7fd8a56a14 100644 --- a/fs/btrfs/extent_map.h +++ b/fs/btrfs/extent_map.h @@ -33,7 +33,6 @@ struct extent_map { unsigned long flags; struct block_device *bdev; atomic_t refs; - unsigned int in_tree; unsigned int compress_type; struct list_head list; }; @@ -44,6 +43,11 @@ struct extent_map_tree { rwlock_t lock; }; +static inline int extent_map_in_tree(const struct extent_map *em) +{ + return !RB_EMPTY_NODE(&em->rb_node); +} + static inline u64 extent_map_end(struct extent_map *em) { if (em->start + em->len < em->start) @@ -64,6 +68,10 @@ struct extent_map *lookup_extent_mapping(struct extent_map_tree *tree, int add_extent_mapping(struct extent_map_tree *tree, struct extent_map *em, int modified); int remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em); +void replace_extent_mapping(struct extent_map_tree *tree, + struct extent_map *cur, + struct extent_map *new, + int modified); struct extent_map *alloc_extent_map(void); void free_extent_map(struct extent_map *em); |