214  * len <= EXT2_NAME_LEN and de != NULL are guaranteed by caller.
217 					struct ext2_dir_entry_2 * de)  in ext2_match()  argument
219 	if (len != de->name_len)  in ext2_match()
221 	if (!de->inode)  in ext2_match()
223 	return !memcmp(name, de->name, len);  in ext2_match()
238 	ext2_dirent *de = (ext2_dirent*)(base + offset);  in ext2_validate_entry()  local
240 	while ((char*)p < (char*)de) {  in ext2_validate_entry()
248 static inline void ext2_set_de_type(ext2_dirent *de, struct inode *inode)  in ext2_set_de_type()  argument
251 		de->file_type = fs_umode_to_ftype(inode->i_mode);  in ext2_set_de_type()
253 		de->file_type = 0;  in ext2_set_de_type()
276 		ext2_dirent *de;  in ext2_readdir()  local
296 		de = (ext2_dirent *)(kaddr+offset);  in ext2_readdir()
298 		for ( ;(char*)de <= limit; de = ext2_next_entry(de)) {  in ext2_readdir()
299 			if (de->rec_len == 0) {  in ext2_readdir()
302 				folio_release_kmap(folio, de);  in ext2_readdir()
305 			if (de->inode) {  in ext2_readdir()
309 					d_type = fs_ftype_to_dtype(de->file_type);  in ext2_readdir()
311 				if (!dir_emit(ctx, de->name, de->name_len,  in ext2_readdir()
312 						le32_to_cpu(de->inode),  in ext2_readdir()
314 					folio_release_kmap(folio, de);  in ext2_readdir()
318 			ctx->pos += ext2_rec_len_from_disk(de->rec_len);  in ext2_readdir()
351 	ext2_dirent * de;  in ext2_find_entry()  local
365 		de = (ext2_dirent *) kaddr;  in ext2_find_entry()
367 		while ((char *) de <= kaddr) {  in ext2_find_entry()
368 			if (de->rec_len == 0) {  in ext2_find_entry()
371 				folio_release_kmap(*foliop, de);  in ext2_find_entry()
374 			if (ext2_match(namelen, name, de))  in ext2_find_entry()
376 			de = ext2_next_entry(de);  in ext2_find_entry()
396 	return de;  in ext2_find_entry()
414 	ext2_dirent *de = ext2_get_folio(dir, 0, 0, foliop);  in ext2_dotdot()  local
416 	if (!IS_ERR(de))  in ext2_dotdot()
417 		return ext2_next_entry(de);  in ext2_dotdot()
423 	struct ext2_dir_entry_2 *de;  in ext2_inode_by_name()  local
426 	de = ext2_find_entry(dir, child, &folio);  in ext2_inode_by_name()
427 	if (IS_ERR(de))  in ext2_inode_by_name()
428 		return PTR_ERR(de);  in ext2_inode_by_name()
430 	*ino = le32_to_cpu(de->inode);  in ext2_inode_by_name()
431 	folio_release_kmap(folio, de);  in ext2_inode_by_name()
450 int ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,  in ext2_set_link()  argument
453 	loff_t pos = folio_pos(folio) + offset_in_folio(folio, de);  in ext2_set_link()
454 	unsigned len = ext2_rec_len_from_disk(de->rec_len);  in ext2_set_link()
463 	de->inode = cpu_to_le32(inode->i_ino);  in ext2_set_link()
464 	ext2_set_de_type(de, inode);  in ext2_set_link()
485 	ext2_dirent * de;  in ext2_add_link()  local
504 		de = (ext2_dirent *)kaddr;  in ext2_add_link()
506 		while ((char *)de <= kaddr) {  in ext2_add_link()
507 			if ((char *)de == dir_end) {  in ext2_add_link()
511 				de->rec_len = ext2_rec_len_to_disk(chunk_size);  in ext2_add_link()
512 				de->inode = 0;  in ext2_add_link()
515 			if (de->rec_len == 0) {  in ext2_add_link()
522 			if (ext2_match (namelen, name, de))  in ext2_add_link()
524 			name_len = EXT2_DIR_REC_LEN(de->name_len);  in ext2_add_link()
525 			rec_len = ext2_rec_len_from_disk(de->rec_len);  in ext2_add_link()
526 			if (!de->inode && rec_len >= reclen)  in ext2_add_link()
530 			de = (ext2_dirent *) ((char *) de + rec_len);  in ext2_add_link()
539 	pos = folio_pos(folio) + offset_in_folio(folio, de);  in ext2_add_link()
543 	if (de->inode) {  in ext2_add_link()
544 		ext2_dirent *de1 = (ext2_dirent *) ((char *) de + name_len);  in ext2_add_link()
546 		de->rec_len = ext2_rec_len_to_disk(name_len);  in ext2_add_link()
547 		de = de1;  in ext2_add_link()
549 	de->name_len = namelen;  in ext2_add_link()
550 	memcpy(de->name, name, namelen);  in ext2_add_link()
551 	de->inode = cpu_to_le32(inode->i_ino);  in ext2_add_link()
552 	ext2_set_de_type (de, inode);  in ext2_add_link()
560 	folio_release_kmap(folio, de);  in ext2_add_link()
577 	ext2_dirent *de, *pde = NULL;  in ext2_delete_entry()  local
584 	de = (ext2_dirent *)(kaddr + from);  in ext2_delete_entry()
586 	while ((char*)de < (char*)dir) {  in ext2_delete_entry()
587 		if (de->rec_len == 0) {  in ext2_delete_entry()
592 		pde = de;  in ext2_delete_entry()
593 		de = ext2_next_entry(de);  in ext2_delete_entry()
621 	struct ext2_dir_entry_2 * de;  in ext2_make_empty()  local
635 	de = (struct ext2_dir_entry_2 *)kaddr;  in ext2_make_empty()
636 	de->name_len = 1;  in ext2_make_empty()
637 	de->rec_len = ext2_rec_len_to_disk(EXT2_DIR_REC_LEN(1));  in ext2_make_empty()
638 	memcpy (de->name, ".\0\0", 4);  in ext2_make_empty()
639 	de->inode = cpu_to_le32(inode->i_ino);  in ext2_make_empty()
640 	ext2_set_de_type (de, inode);  in ext2_make_empty()
642 	de = (struct ext2_dir_entry_2 *)(kaddr + EXT2_DIR_REC_LEN(1));  in ext2_make_empty()
643 	de->name_len = 2;  in ext2_make_empty()
644 	de->rec_len = ext2_rec_len_to_disk(chunk_size - EXT2_DIR_REC_LEN(1));  in ext2_make_empty()
645 	de->inode = cpu_to_le32(parent->i_ino);  in ext2_make_empty()
646 	memcpy (de->name, "..\0", 4);  in ext2_make_empty()
647 	ext2_set_de_type (de, inode);  in ext2_make_empty()
666 		ext2_dirent *de;  in ext2_empty_dir()  local
672 		de = (ext2_dirent *)kaddr;  in ext2_empty_dir()
675 		while ((char *)de <= kaddr) {  in ext2_empty_dir()
676 			if (de->rec_len == 0) {  in ext2_empty_dir()
679 				printk("kaddr=%p, de=%p\n", kaddr, de);  in ext2_empty_dir()
682 			if (de->inode != 0) {  in ext2_empty_dir()
684 				if (de->name[0] != '.')  in ext2_empty_dir()
686 				if (de->name_len > 2)  in ext2_empty_dir()
688 				if (de->name_len < 2) {  in ext2_empty_dir()
689 					if (de->inode !=  in ext2_empty_dir()
692 				} else if (de->name[1] != '.')  in ext2_empty_dir()
695 			de = ext2_next_entry(de);  in ext2_empty_dir()