diff options
Diffstat (limited to 'volumes.c')
| -rw-r--r-- | volumes.c | 17 |
1 files changed, 13 insertions, 4 deletions
@@ -1170,14 +1170,23 @@ int btrfs_next_bg(struct btrfs_mapping_tree *map_tree, u64 *logical, { struct cache_extent *ce; struct map_lookup *map; + u64 cur = *logical; - ce = search_cache_extent(&map_tree->cache_tree, *logical); + ce = search_cache_extent(&map_tree->cache_tree, cur); while (ce) { - ce = next_cache_extent(ce); - if (!ce) - return -ENOENT; + /* + * only jump to next bg if our cur is not 0 + * As the initial logical for btrfs_next_bg() is 0, and + * if we jump to next bg, we skipped a valid bg. + */ + if (cur) { + ce = next_cache_extent(ce); + if (!ce) + return -ENOENT; + } + cur = ce->start; map = container_of(ce, struct map_lookup, ce); if (map->type & type) { *logical = ce->start; |