1769 	struct extent_map_tree *em_tree;  in find_next_chunk()  local
1774 	em_tree = &fs_info->mapping_tree;  in find_next_chunk()
1775 	read_lock(&em_tree->lock);  in find_next_chunk()
1776 	n = rb_last(&em_tree->map.rb_root);  in find_next_chunk()
1781 	read_unlock(&em_tree->lock);  in find_next_chunk()
3033 	struct extent_map_tree *em_tree;  in btrfs_get_chunk_map()  local
3036 	em_tree = &fs_info->mapping_tree;  in btrfs_get_chunk_map()
3037 	read_lock(&em_tree->lock);  in btrfs_get_chunk_map()
3038 	em = lookup_extent_mapping(em_tree, logical, length);  in btrfs_get_chunk_map()
3039 	read_unlock(&em_tree->lock);  in btrfs_get_chunk_map()
5375 	struct extent_map_tree *em_tree;  in create_chunk()  local
5418 	em_tree = &info->mapping_tree;  in create_chunk()
5419 	write_lock(&em_tree->lock);  in create_chunk()
5420 	ret = add_extent_mapping(em_tree, em, 0);  in create_chunk()
5422 		write_unlock(&em_tree->lock);  in create_chunk()
5426 	write_unlock(&em_tree->lock);  in create_chunk()
5452 	write_lock(&em_tree->lock);  in create_chunk()
5453 	remove_extent_mapping(em_tree, em);  in create_chunk()
5454 	write_unlock(&em_tree->lock);  in create_chunk()
8122 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_one_dev_extent()  local
8131 	read_lock(&em_tree->lock);  in verify_one_dev_extent()
8132 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in verify_one_dev_extent()
8133 	read_unlock(&em_tree->lock);  in verify_one_dev_extent()
8223 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_chunk_dev_extent_mapping()  local
8228 	read_lock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()
8229 	for (node = rb_first_cached(&em_tree->map); node; node = rb_next(node)) {  in verify_chunk_dev_extent_mapping()
8242 	read_unlock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()