1819 	struct extent_map_tree *em_tree;  in find_next_chunk()  local
1824 	em_tree = &fs_info->mapping_tree;  in find_next_chunk()
1825 	read_lock(&em_tree->lock);  in find_next_chunk()
1826 	n = rb_last(&em_tree->map.rb_root);  in find_next_chunk()
1831 	read_unlock(&em_tree->lock);  in find_next_chunk()
2941 	struct extent_map_tree *em_tree;  in btrfs_get_chunk_map()  local
2944 	em_tree = &fs_info->mapping_tree;  in btrfs_get_chunk_map()
2945 	read_lock(&em_tree->lock);  in btrfs_get_chunk_map()
2946 	em = lookup_extent_mapping(em_tree, logical, length);  in btrfs_get_chunk_map()
2947 	read_unlock(&em_tree->lock);  in btrfs_get_chunk_map()
4912 	struct extent_map_tree *em_tree;  in __btrfs_alloc_chunk()  local
5141 	em_tree = &info->mapping_tree;  in __btrfs_alloc_chunk()
5142 	write_lock(&em_tree->lock);  in __btrfs_alloc_chunk()
5143 	ret = add_extent_mapping(em_tree, em, 0);  in __btrfs_alloc_chunk()
5145 		write_unlock(&em_tree->lock);  in __btrfs_alloc_chunk()
5149 	write_unlock(&em_tree->lock);  in __btrfs_alloc_chunk()
5173 	write_lock(&em_tree->lock);  in __btrfs_alloc_chunk()
5174 	remove_extent_mapping(em_tree, em);  in __btrfs_alloc_chunk()
5175 	write_unlock(&em_tree->lock);  in __btrfs_alloc_chunk()
7655 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_one_dev_extent()  local
7664 	read_lock(&em_tree->lock);  in verify_one_dev_extent()
7665 	em = lookup_extent_mapping(em_tree, chunk_offset, 1);  in verify_one_dev_extent()
7666 	read_unlock(&em_tree->lock);  in verify_one_dev_extent()
7744 	struct extent_map_tree *em_tree = &fs_info->mapping_tree;  in verify_chunk_dev_extent_mapping()  local
7749 	read_lock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()
7750 	for (node = rb_first_cached(&em_tree->map); node; node = rb_next(node)) {  in verify_chunk_dev_extent_mapping()
7763 	read_unlock(&em_tree->lock);  in verify_chunk_dev_extent_mapping()