1223 	struct extent_map_tree *em_tree = &inode->extent_tree;  in btrfs_get_extent_allocation_hint()  local
1227 	read_lock(&em_tree->lock);  in btrfs_get_extent_allocation_hint()
1228 	em = search_extent_mapping(em_tree, start, num_bytes);  in btrfs_get_extent_allocation_hint()
1237 			em = search_extent_mapping(em_tree, 0, 0);  in btrfs_get_extent_allocation_hint()
1247 	read_unlock(&em_tree->lock);  in btrfs_get_extent_allocation_hint()
6860 	struct extent_map_tree *em_tree = &inode->extent_tree;  in btrfs_get_extent()  local
6862 	read_lock(&em_tree->lock);  in btrfs_get_extent()
6863 	em = lookup_extent_mapping(em_tree, start, len);  in btrfs_get_extent()
6864 	read_unlock(&em_tree->lock);  in btrfs_get_extent()
7019 	write_lock(&em_tree->lock);  in btrfs_get_extent()
7021 	write_unlock(&em_tree->lock);  in btrfs_get_extent()