84 			  struct btrfs_path *path,  in btrfs_lookup_inode_extref()  argument
96 	ret = btrfs_search_slot(trans, root, &key, path, ins_len, cow);  in btrfs_lookup_inode_extref()
101 	return btrfs_find_name_in_ext_backref(path->nodes[0], path->slots[0],  in btrfs_lookup_inode_extref()
112 	struct btrfs_path *path;  in btrfs_del_inode_extref()  local
126 	path = btrfs_alloc_path();  in btrfs_del_inode_extref()
127 	if (!path)  in btrfs_del_inode_extref()
130 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_del_inode_extref()
141 	extref = btrfs_find_name_in_ext_backref(path->nodes[0], path->slots[0],  in btrfs_del_inode_extref()
149 	leaf = path->nodes[0];  in btrfs_del_inode_extref()
150 	item_size = btrfs_item_size(leaf, path->slots[0]);  in btrfs_del_inode_extref()
159 		ret = btrfs_del_item(trans, root, path);  in btrfs_del_inode_extref()
164 	item_start = btrfs_item_ptr_offset(leaf, path->slots[0]);  in btrfs_del_inode_extref()
169 	btrfs_truncate_item(trans, path, item_size - del_len, 1);  in btrfs_del_inode_extref()
172 	btrfs_free_path(path);  in btrfs_del_inode_extref()
181 	struct btrfs_path *path;  in btrfs_del_inode_ref()  local
197 	path = btrfs_alloc_path();  in btrfs_del_inode_ref()
198 	if (!path)  in btrfs_del_inode_ref()
201 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_del_inode_ref()
210 	ref = btrfs_find_name_in_backref(path->nodes[0], path->slots[0], name);  in btrfs_del_inode_ref()
216 	leaf = path->nodes[0];  in btrfs_del_inode_ref()
217 	item_size = btrfs_item_size(leaf, path->slots[0]);  in btrfs_del_inode_ref()
223 		ret = btrfs_del_item(trans, root, path);  in btrfs_del_inode_ref()
228 	item_start = btrfs_item_ptr_offset(leaf, path->slots[0]);  in btrfs_del_inode_ref()
231 	btrfs_truncate_item(trans, path, item_size - sub_item_len, 1);  in btrfs_del_inode_ref()
233 	btrfs_free_path(path);  in btrfs_del_inode_ref()
263 	struct btrfs_path *path;  in btrfs_insert_inode_extref()  local
271 	path = btrfs_alloc_path();  in btrfs_insert_inode_extref()
272 	if (!path)  in btrfs_insert_inode_extref()
275 	ret = btrfs_insert_empty_item(trans, root, path, &key,  in btrfs_insert_inode_extref()
278 		if (btrfs_find_name_in_ext_backref(path->nodes[0],  in btrfs_insert_inode_extref()
279 						   path->slots[0],  in btrfs_insert_inode_extref()
284 		btrfs_extend_item(trans, path, ins_len);  in btrfs_insert_inode_extref()
290 	leaf = path->nodes[0];  in btrfs_insert_inode_extref()
291 	ptr = (unsigned long)btrfs_item_ptr(leaf, path->slots[0], char);  in btrfs_insert_inode_extref()
292 	ptr += btrfs_item_size(leaf, path->slots[0]) - ins_len;  in btrfs_insert_inode_extref()
295 	btrfs_set_inode_extref_name_len(path->nodes[0], extref, name->len);  in btrfs_insert_inode_extref()
296 	btrfs_set_inode_extref_index(path->nodes[0], extref, index);  in btrfs_insert_inode_extref()
297 	btrfs_set_inode_extref_parent(path->nodes[0], extref, ref_objectid);  in btrfs_insert_inode_extref()
300 	write_extent_buffer(path->nodes[0], name->name, ptr, name->len);  in btrfs_insert_inode_extref()
301 	btrfs_mark_buffer_dirty(trans, path->nodes[0]);  in btrfs_insert_inode_extref()
304 	btrfs_free_path(path);  in btrfs_insert_inode_extref()
308 /* Will return 0, -ENOMEM, -EMLINK, or -EEXIST or anything from the CoW path */
314 	struct btrfs_path *path;  in btrfs_insert_inode_ref()  local
325 	path = btrfs_alloc_path();  in btrfs_insert_inode_ref()
326 	if (!path)  in btrfs_insert_inode_ref()
329 	path->skip_release_on_error = 1;  in btrfs_insert_inode_ref()
330 	ret = btrfs_insert_empty_item(trans, root, path, &key,  in btrfs_insert_inode_ref()
334 		ref = btrfs_find_name_in_backref(path->nodes[0], path->slots[0],  in btrfs_insert_inode_ref()
339 		old_size = btrfs_item_size(path->nodes[0], path->slots[0]);  in btrfs_insert_inode_ref()
340 		btrfs_extend_item(trans, path, ins_len);  in btrfs_insert_inode_ref()
341 		ref = btrfs_item_ptr(path->nodes[0], path->slots[0],  in btrfs_insert_inode_ref()
344 		btrfs_set_inode_ref_name_len(path->nodes[0], ref, name->len);  in btrfs_insert_inode_ref()
345 		btrfs_set_inode_ref_index(path->nodes[0], ref, index);  in btrfs_insert_inode_ref()
350 			if (btrfs_find_name_in_backref(path->nodes[0],  in btrfs_insert_inode_ref()
351 						       path->slots[0],  in btrfs_insert_inode_ref()
359 		ref = btrfs_item_ptr(path->nodes[0], path->slots[0],  in btrfs_insert_inode_ref()
361 		btrfs_set_inode_ref_name_len(path->nodes[0], ref, name->len);  in btrfs_insert_inode_ref()
362 		btrfs_set_inode_ref_index(path->nodes[0], ref, index);  in btrfs_insert_inode_ref()
365 	write_extent_buffer(path->nodes[0], name->name, ptr, name->len);  in btrfs_insert_inode_ref()
366 	btrfs_mark_buffer_dirty(trans, path->nodes[0]);  in btrfs_insert_inode_ref()
369 	btrfs_free_path(path);  in btrfs_insert_inode_ref()
387 			     struct btrfs_path *path, u64 objectid)  in btrfs_insert_empty_inode()  argument
395 	ret = btrfs_insert_empty_item(trans, root, path, &key,  in btrfs_insert_empty_inode()
401 		       *root, struct btrfs_path *path,  in btrfs_lookup_inode()  argument
411 	ret = btrfs_search_slot(trans, root, location, path, ins_len, cow);  in btrfs_lookup_inode()
413 	    location->offset == (u64)-1 && path->slots[0] != 0) {  in btrfs_lookup_inode()
414 		slot = path->slots[0] - 1;  in btrfs_lookup_inode()
415 		leaf = path->nodes[0];  in btrfs_lookup_inode()
419 			path->slots[0]--;  in btrfs_lookup_inode()
463 	struct btrfs_path *path;  in btrfs_truncate_inode_items()  local
494 	path = btrfs_alloc_path();  in btrfs_truncate_inode_items()
495 	if (!path)  in btrfs_truncate_inode_items()
497 	path->reada = READA_BACK;  in btrfs_truncate_inode_items()
515 	ret = btrfs_search_slot(trans, root, &key, path, -1, 1);  in btrfs_truncate_inode_items()
522 		if (path->slots[0] == 0)  in btrfs_truncate_inode_items()
524 		path->slots[0]--;  in btrfs_truncate_inode_items()
532 		leaf = path->nodes[0];  in btrfs_truncate_inode_items()
533 		btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);  in btrfs_truncate_inode_items()
544 			fi = btrfs_item_ptr(leaf, path->slots[0],  in btrfs_truncate_inode_items()
555 					     path->slots[0]);  in btrfs_truncate_inode_items()
619 				btrfs_truncate_item(trans, path, size, 1);  in btrfs_truncate_inode_items()
642 		 * normal truncate path.  in btrfs_truncate_inode_items()
655 			       ((path->slots[0] + 1) == pending_del_slot));  in btrfs_truncate_inode_items()
660 				pending_del_slot = path->slots[0];  in btrfs_truncate_inode_items()
662 			} else if (path->slots[0] + 1 == pending_del_slot) {  in btrfs_truncate_inode_items()
665 				pending_del_slot = path->slots[0];  in btrfs_truncate_inode_items()
697 		if (path->slots[0] == 0 ||  in btrfs_truncate_inode_items()
698 		    path->slots[0] != pending_del_slot ||  in btrfs_truncate_inode_items()
701 				ret = btrfs_del_items(trans, root, path,  in btrfs_truncate_inode_items()
710 			btrfs_release_path(path);  in btrfs_truncate_inode_items()
732 			path->slots[0]--;  in btrfs_truncate_inode_items()
739 		err = btrfs_del_items(trans, root, path, pending_del_slot,  in btrfs_truncate_inode_items()
751 	btrfs_free_path(path);  in btrfs_truncate_inode_items()