215  * len <= EXT2_NAME_LEN and de != NULL are guaranteed by caller.
218 					struct ext2_dir_entry_2 * de)  in ext2_match()  argument
220 	if (len != de->name_len)  in ext2_match()
222 	if (!de->inode)  in ext2_match()
224 	return !memcmp(name, de->name, len);  in ext2_match()
239 	ext2_dirent *de = (ext2_dirent*)(base + offset);  in ext2_validate_entry()  local
241 	while ((char*)p < (char*)de) {  in ext2_validate_entry()
249 static inline void ext2_set_de_type(ext2_dirent *de, struct inode *inode)  in ext2_set_de_type()  argument
252 		de->file_type = fs_umode_to_ftype(inode->i_mode);  in ext2_set_de_type()
254 		de->file_type = 0;  in ext2_set_de_type()
277 		ext2_dirent *de;  in ext2_readdir()  local
297 		de = (ext2_dirent *)(kaddr+offset);  in ext2_readdir()
299 		for ( ;(char*)de <= limit; de = ext2_next_entry(de)) {  in ext2_readdir()
300 			if (de->rec_len == 0) {  in ext2_readdir()
303 				folio_release_kmap(folio, de);  in ext2_readdir()
306 			if (de->inode) {  in ext2_readdir()
310 					d_type = fs_ftype_to_dtype(de->file_type);  in ext2_readdir()
312 				if (!dir_emit(ctx, de->name, de->name_len,  in ext2_readdir()
313 						le32_to_cpu(de->inode),  in ext2_readdir()
315 					folio_release_kmap(folio, de);  in ext2_readdir()
319 			ctx->pos += ext2_rec_len_from_disk(de->rec_len);  in ext2_readdir()
352 	ext2_dirent * de;  in ext2_find_entry()  local
366 		de = (ext2_dirent *) kaddr;  in ext2_find_entry()
368 		while ((char *) de <= kaddr) {  in ext2_find_entry()
369 			if (de->rec_len == 0) {  in ext2_find_entry()
372 				folio_release_kmap(*foliop, de);  in ext2_find_entry()
375 			if (ext2_match(namelen, name, de))  in ext2_find_entry()
377 			de = ext2_next_entry(de);  in ext2_find_entry()
397 	return de;  in ext2_find_entry()
415 	ext2_dirent *de = ext2_get_folio(dir, 0, 0, foliop);  in ext2_dotdot()  local
417 	if (!IS_ERR(de))  in ext2_dotdot()
418 		return ext2_next_entry(de);  in ext2_dotdot()
424 	struct ext2_dir_entry_2 *de;  in ext2_inode_by_name()  local
427 	de = ext2_find_entry(dir, child, &folio);  in ext2_inode_by_name()
428 	if (IS_ERR(de))  in ext2_inode_by_name()
429 		return PTR_ERR(de);  in ext2_inode_by_name()
431 	*ino = le32_to_cpu(de->inode);  in ext2_inode_by_name()
432 	folio_release_kmap(folio, de);  in ext2_inode_by_name()
451 int ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,  in ext2_set_link()  argument
454 	loff_t pos = folio_pos(folio) + offset_in_folio(folio, de);  in ext2_set_link()
455 	unsigned len = ext2_rec_len_from_disk(de->rec_len);  in ext2_set_link()
464 	de->inode = cpu_to_le32(inode->i_ino);  in ext2_set_link()
465 	ext2_set_de_type(de, inode);  in ext2_set_link()
486 	ext2_dirent * de;  in ext2_add_link()  local
505 		de = (ext2_dirent *)kaddr;  in ext2_add_link()
507 		while ((char *)de <= kaddr) {  in ext2_add_link()
508 			if ((char *)de == dir_end) {  in ext2_add_link()
512 				de->rec_len = ext2_rec_len_to_disk(chunk_size);  in ext2_add_link()
513 				de->inode = 0;  in ext2_add_link()
516 			if (de->rec_len == 0) {  in ext2_add_link()
523 			if (ext2_match (namelen, name, de))  in ext2_add_link()
525 			name_len = EXT2_DIR_REC_LEN(de->name_len);  in ext2_add_link()
526 			rec_len = ext2_rec_len_from_disk(de->rec_len);  in ext2_add_link()
527 			if (!de->inode && rec_len >= reclen)  in ext2_add_link()
531 			de = (ext2_dirent *) ((char *) de + rec_len);  in ext2_add_link()
540 	pos = folio_pos(folio) + offset_in_folio(folio, de);  in ext2_add_link()
544 	if (de->inode) {  in ext2_add_link()
545 		ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);  in ext2_add_link()
547 		de->rec_len = ext2_rec_len_to_disk(name_len);  in ext2_add_link()
548 		de = de1;  in ext2_add_link()
550 	de->name_len = namelen;  in ext2_add_link()
551 	memcpy(de->name, name, namelen);  in ext2_add_link()
552 	de->inode = cpu_to_le32(inode->i_ino);  in ext2_add_link()
553 	ext2_set_de_type (de, inode);  in ext2_add_link()
561 	folio_release_kmap(folio, de);  in ext2_add_link()
578 	ext2_dirent *de, *pde = NULL;  in ext2_delete_entry()  local
585 	de = (ext2_dirent *)(kaddr + from);  in ext2_delete_entry()
587 	while ((char*)de < (char*)dir) {  in ext2_delete_entry()
588 		if (de->rec_len == 0) {  in ext2_delete_entry()
593 		pde = de;  in ext2_delete_entry()
594 		de = ext2_next_entry(de);  in ext2_delete_entry()
622 	struct ext2_dir_entry_2 * de;  in ext2_make_empty()  local
636 	de = (struct ext2_dir_entry_2 *)kaddr;  in ext2_make_empty()
637 	de->name_len = 1;  in ext2_make_empty()
638 	de->rec_len = ext2_rec_len_to_disk(EXT2_DIR_REC_LEN(1));  in ext2_make_empty()
639 	memcpy (de->name, ".\0\0", 4);  in ext2_make_empty()
640 	de->inode = cpu_to_le32(inode->i_ino);  in ext2_make_empty()
641 	ext2_set_de_type (de, inode);  in ext2_make_empty()
643 	de = (struct ext2_dir_entry_2 *)(kaddr + EXT2_DIR_REC_LEN(1));  in ext2_make_empty()
644 	de->name_len = 2;  in ext2_make_empty()
645 	de->rec_len = ext2_rec_len_to_disk(chunk_size - EXT2_DIR_REC_LEN(1));  in ext2_make_empty()
646 	de->inode = cpu_to_le32(parent->i_ino);  in ext2_make_empty()
647 	memcpy (de->name, "..\0", 4);  in ext2_make_empty()
648 	ext2_set_de_type (de, inode);  in ext2_make_empty()
667 		ext2_dirent *de;  in ext2_empty_dir()  local
673 		de = (ext2_dirent *)kaddr;  in ext2_empty_dir()
676 		while ((char *)de <= kaddr) {  in ext2_empty_dir()
677 			if (de->rec_len == 0) {  in ext2_empty_dir()
680 				printk("kaddr=%p, de=%p\n", kaddr, de);  in ext2_empty_dir()
683 			if (de->inode != 0) {  in ext2_empty_dir()
685 				if (de->name[0] != '.')  in ext2_empty_dir()
687 				if (de->name_len > 2)  in ext2_empty_dir()
689 				if (de->name_len < 2) {  in ext2_empty_dir()
690 					if (de->inode !=  in ext2_empty_dir()
693 				} else if (de->name[1] != '.')  in ext2_empty_dir()
696 			de = ext2_next_entry(de);  in ext2_empty_dir()