diff options
Diffstat (limited to 'fs/btrfs/extent_map.c')
| -rw-r--r-- | fs/btrfs/extent_map.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index a6d8368ed0ed..bced39dc0da8 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -182,6 +182,13 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 offset, return NULL; } +static inline u64 extent_map_block_end(const struct extent_map *em) +{ + if (em->block_start + em->block_len < em->block_start) + return (u64)-1; + return em->block_start + em->block_len; +} + /* Check to see if two extent_map structs are adjacent and safe to merge. */ static int mergable_maps(struct extent_map *prev, struct extent_map *next) { |