rcu_read_unlock();
}
-/* simple helper to search for an existing extent at a given offset */
-int btrfs_lookup_extent(struct btrfs_root *root, u64 start, u64 len)
+/* simple helper to search for an existing data extent at a given offset */
+int btrfs_lookup_data_extent(struct btrfs_root *root, u64 start, u64 len)
{
int ret;
struct btrfs_key key;
key.type = BTRFS_EXTENT_ITEM_KEY;
ret = btrfs_search_slot(NULL, root->fs_info->extent_root, &key, path,
0, 0);
- if (ret > 0) {
- btrfs_item_key_to_cpu(path->nodes[0], &key, path->slots[0]);
- if (key.objectid == start &&
- key.type == BTRFS_METADATA_ITEM_KEY)
- ret = 0;
- }
btrfs_free_path(path);
return ret;
}
else
key.type = BTRFS_EXTENT_ITEM_KEY;
-again:
ret = btrfs_search_slot(trans, root->fs_info->extent_root,
&key, path, 0, 0);
if (ret < 0)
key.offset == root->nodesize)
ret = 0;
}
- if (ret) {
- key.objectid = bytenr;
- key.type = BTRFS_EXTENT_ITEM_KEY;
- key.offset = root->nodesize;
- btrfs_release_path(path);
- goto again;
- }
}
if (ret == 0) {