1764 	struct extent_map_tree *em_tree;  in find_next_chunk()  local
1769 	em_tree = &fs_info->mapping_tree;  in find_next_chunk()
1770 	read_lock(&em_tree->lock);  in find_next_chunk()
1771 	n = rb_last(&em_tree->map.rb_root);  in find_next_chunk()
1776 	read_unlock(&em_tree->lock);  in find_next_chunk()
2951 	struct extent_map_tree *em_tree;  in btrfs_get_chunk_map()  local
2954 	em_tree = &fs_info->mapping_tree;  in btrfs_get_chunk_map()
2955 	read_lock(&em_tree->lock);  in btrfs_get_chunk_map()
2956 	em = lookup_extent_mapping(em_tree, logical, length);  in btrfs_get_chunk_map()
2957 	read_unlock(&em_tree->lock);  in btrfs_get_chunk_map()
5291 	struct extent_map_tree *em_tree;  in create_chunk()  local
5334 	em_tree = &info->mapping_tree;  in create_chunk()
5335 	write_lock(&em_tree->lock);  in create_chunk()
5336 	ret = add_extent_mapping(em_tree, em, 0);  in create_chunk()
5338 		write_unlock(&em_tree->lock);  in create_chunk()
5342 	write_unlock(&em_tree->lock);  in create_chunk()
5368 	write_lock(&em_tree->lock);  in create_chunk()
5369 	remove_extent_mapping(em_tree, em);  in create_chunk()
5370 	write_unlock(&em_tree->lock);  in create_chunk()
7925 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_one_dev_extent()  local
7934 	read_lock(&em_tree->lock);  in verify_one_dev_extent()
7935 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in verify_one_dev_extent()
7936 	read_unlock(&em_tree->lock);  in verify_one_dev_extent()
8016 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_chunk_dev_extent_mapping()  local
8021 	read_lock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()
8022 	for (node = rb_first_cached(&em_tree->map); node; node = rb_next(node)) {  in verify_chunk_dev_extent_mapping()
8035 	read_unlock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()