550 static noinline int merge_extent_mapping(struct extent_map_tree *em_tree,  in merge_extent_mapping()  argument
583 	return add_extent_mapping(em_tree, em, 0);  in merge_extent_mapping()
608 			     struct extent_map_tree *em_tree,  in btrfs_add_extent_mapping()  argument
621 	ret = add_extent_mapping(em_tree, em, 0);  in btrfs_add_extent_mapping()
631 		existing = search_extent_mapping(em_tree, start, len);  in btrfs_add_extent_mapping()
652 			ret = merge_extent_mapping(em_tree, existing,  in btrfs_add_extent_mapping()
713 	struct extent_map_tree *em_tree = &inode->extent_tree;  in btrfs_drop_extent_map_range()  local
719 			drop_all_extent_maps_fast(em_tree);  in btrfs_drop_extent_map_range()
739 	write_lock(&em_tree->lock);  in btrfs_drop_extent_map_range()
740 	em = lookup_extent_mapping(em_tree, start, len);  in btrfs_drop_extent_map_range()
818 			replace_extent_mapping(em_tree, em, split, modified);  in btrfs_drop_extent_map_range()
860 				replace_extent_mapping(em_tree, em, split,  in btrfs_drop_extent_map_range()
865 				ret = add_extent_mapping(em_tree, split,  in btrfs_drop_extent_map_range()
901 			remove_extent_mapping(em_tree, em);  in btrfs_drop_extent_map_range()
916 	write_unlock(&em_tree->lock);  in btrfs_drop_extent_map_range()
972 	struct extent_map_tree *em_tree = &inode->extent_tree;  in split_extent_map()  local
992 	write_lock(&em_tree->lock);  in split_extent_map()
993 	em = lookup_extent_mapping(em_tree, start, len);  in split_extent_map()
1021 	replace_extent_mapping(em_tree, em, split_pre, 1);  in split_extent_map()
1039 	add_extent_mapping(em_tree, split_mid, 1);  in split_extent_map()
1047 	write_unlock(&em_tree->lock);  in split_extent_map()