search_extent_mapping 609 fs/btrfs/extent_map.c existing = search_extent_mapping(em_tree, start, len); search_extent_mapping 101 fs/btrfs/extent_map.h struct extent_map *search_extent_mapping(struct extent_map_tree *tree, search_extent_mapping 929 fs/btrfs/inode.c em = search_extent_mapping(em_tree, start, num_bytes); search_extent_mapping 938 fs/btrfs/inode.c em = search_extent_mapping(em_tree, 0, 0);