51 					struct inode *inode,  in ext4_append()  argument
57 	if (unlikely(EXT4_SB(inode->i_sb)->s_max_dir_size_kb &&  in ext4_append()
58 		     ((inode->i_size >> 10) >=  in ext4_append()
59 		      EXT4_SB(inode->i_sb)->s_max_dir_size_kb)))  in ext4_append()
62 	*block = inode->i_size >> inode->i_sb->s_blocksize_bits;  in ext4_append()
64 	bh = ext4_bread(handle, inode, *block, EXT4_GET_BLOCKS_CREATE);  in ext4_append()
67 	inode->i_size += inode->i_sb->s_blocksize;  in ext4_append()
68 	EXT4_I(inode)->i_disksize = inode->i_size;  in ext4_append()
73 		ext4_std_error(inode->i_sb, err);  in ext4_append()
79 static int ext4_dx_csum_verify(struct inode *inode,
86 #define ext4_read_dirblock(inode, block, type) \  argument
87 	__ext4_read_dirblock((inode), (block), (type), __func__, __LINE__)
89 static struct buffer_head *__ext4_read_dirblock(struct inode *inode,  in __ext4_read_dirblock()  argument
99 	bh = ext4_bread(NULL, inode, block, 0);  in __ext4_read_dirblock()
101 		__ext4_warning(inode->i_sb, func, line,  in __ext4_read_dirblock()
104 			       inode->i_ino, (unsigned long)block,  in __ext4_read_dirblock()
110 		ext4_error_inode(inode, func, line, block,  in __ext4_read_dirblock()
116 	if (is_dx(inode)) {  in __ext4_read_dirblock()
120 						inode->i_sb->s_blocksize) ==  in __ext4_read_dirblock()
121 			 inode->i_sb->s_blocksize)  in __ext4_read_dirblock()
125 		ext4_error_inode(inode, func, line, block,  in __ext4_read_dirblock()
129 	if (!ext4_has_metadata_csum(inode->i_sb) ||  in __ext4_read_dirblock()
139 		if (ext4_dx_csum_verify(inode, dirent))  in __ext4_read_dirblock()
142 			ext4_error_inode(inode, func, line, block,  in __ext4_read_dirblock()
149 		if (ext4_dirent_csum_verify(inode, dirent))  in __ext4_read_dirblock()
152 			ext4_error_inode(inode, func, line, block,  in __ext4_read_dirblock()
173 	__le32 inode;  member
252 static unsigned dx_root_limit(struct inode *dir, unsigned infosize);
253 static unsigned dx_node_limit(struct inode *dir);
255 				 struct inode *dir,
259 static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,
268 static int ext4_htree_next_block(struct inode *dir, __u32 hash,
272 static struct buffer_head * ext4_dx_find_entry(struct inode *dir,
276 			     struct dentry *dentry, struct inode *inode);
289 static struct ext4_dir_entry_tail *get_dirent_tail(struct inode *inode,  in get_dirent_tail()  argument
299 		(EXT4_BLOCK_SIZE(inode->i_sb) -  in get_dirent_tail()
310 	t = EXT4_DIRENT_TAIL(de, EXT4_BLOCK_SIZE(inode->i_sb));  in get_dirent_tail()
322 static __le32 ext4_dirent_csum(struct inode *inode,  in ext4_dirent_csum()  argument
325 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);  in ext4_dirent_csum()
326 	struct ext4_inode_info *ei = EXT4_I(inode);  in ext4_dirent_csum()
333 #define warn_no_space_for_csum(inode)					\  argument
334 	__warn_no_space_for_csum((inode), __func__, __LINE__)
336 static void __warn_no_space_for_csum(struct inode *inode, const char *func,  in __warn_no_space_for_csum()  argument
339 	__ext4_warning_inode(inode, func, line,  in __warn_no_space_for_csum()
343 int ext4_dirent_csum_verify(struct inode *inode, struct ext4_dir_entry *dirent)  in ext4_dirent_csum_verify()  argument
347 	if (!ext4_has_metadata_csum(inode->i_sb))  in ext4_dirent_csum_verify()
350 	t = get_dirent_tail(inode, dirent);  in ext4_dirent_csum_verify()
352 		warn_no_space_for_csum(inode);  in ext4_dirent_csum_verify()
356 	if (t->det_checksum != ext4_dirent_csum(inode, dirent,  in ext4_dirent_csum_verify()
363 static void ext4_dirent_csum_set(struct inode *inode,  in ext4_dirent_csum_set()  argument
368 	if (!ext4_has_metadata_csum(inode->i_sb))  in ext4_dirent_csum_set()
371 	t = get_dirent_tail(inode, dirent);  in ext4_dirent_csum_set()
373 		warn_no_space_for_csum(inode);  in ext4_dirent_csum_set()
377 	t->det_checksum = ext4_dirent_csum(inode, dirent,  in ext4_dirent_csum_set()
382 				  struct inode *inode,  in ext4_handle_dirty_dirent_node()  argument
385 	ext4_dirent_csum_set(inode, (struct ext4_dir_entry *)bh->b_data);  in ext4_handle_dirty_dirent_node()
386 	return ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_handle_dirty_dirent_node()
389 static struct dx_countlimit *get_dx_countlimit(struct inode *inode,  in get_dx_countlimit()  argument
397 	if (le16_to_cpu(dirent->rec_len) == EXT4_BLOCK_SIZE(inode->i_sb))  in get_dx_countlimit()
402 		    EXT4_BLOCK_SIZE(inode->i_sb) - 12)  in get_dx_countlimit()
417 static __le32 ext4_dx_csum(struct inode *inode, struct ext4_dir_entry *dirent,  in ext4_dx_csum()  argument
420 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);  in ext4_dx_csum()
421 	struct ext4_inode_info *ei = EXT4_I(inode);  in ext4_dx_csum()
436 static int ext4_dx_csum_verify(struct inode *inode,  in ext4_dx_csum_verify()  argument
443 	if (!ext4_has_metadata_csum(inode->i_sb))  in ext4_dx_csum_verify()
446 	c = get_dx_countlimit(inode, dirent, &count_offset);  in ext4_dx_csum_verify()
448 		EXT4_ERROR_INODE(inode, "dir seems corrupt?  Run e2fsck -D.");  in ext4_dx_csum_verify()
454 	    EXT4_BLOCK_SIZE(inode->i_sb) - sizeof(struct dx_tail)) {  in ext4_dx_csum_verify()
455 		warn_no_space_for_csum(inode);  in ext4_dx_csum_verify()
460 	if (t->dt_checksum != ext4_dx_csum(inode, dirent, count_offset,  in ext4_dx_csum_verify()
466 static void ext4_dx_csum_set(struct inode *inode, struct ext4_dir_entry *dirent)  in ext4_dx_csum_set()  argument
472 	if (!ext4_has_metadata_csum(inode->i_sb))  in ext4_dx_csum_set()
475 	c = get_dx_countlimit(inode, dirent, &count_offset);  in ext4_dx_csum_set()
477 		EXT4_ERROR_INODE(inode, "dir seems corrupt?  Run e2fsck -D.");  in ext4_dx_csum_set()
483 	    EXT4_BLOCK_SIZE(inode->i_sb) - sizeof(struct dx_tail)) {  in ext4_dx_csum_set()
484 		warn_no_space_for_csum(inode);  in ext4_dx_csum_set()
489 	t->dt_checksum = ext4_dx_csum(inode, dirent, count_offset, count, t);  in ext4_dx_csum_set()
493 					    struct inode *inode,  in ext4_handle_dirty_dx_node()  argument
496 	ext4_dx_csum_set(inode, (struct ext4_dir_entry *)bh->b_data);  in ext4_handle_dirty_dx_node()
497 	return ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_handle_dirty_dx_node()
555 static inline unsigned dx_root_limit(struct inode *dir, unsigned infosize)  in dx_root_limit()
565 static inline unsigned dx_node_limit(struct inode *dir)  in dx_node_limit()
596 static struct stats dx_show_leaf(struct inode *dir,  in dx_show_leaf()
608 		if (de->inode)  in dx_show_leaf()
621 				if (ext4_encrypted_inode(inode))  in dx_show_leaf()
685 struct stats dx_show_entries(struct dx_hash_info *hinfo, struct inode *dir,  in dx_show_entries()
730 dx_probe(struct ext4_filename *fname, struct inode *dir,  in dx_probe()
884 static int ext4_htree_next_block(struct inode *dir, __u32 hash,  in ext4_htree_next_block()
948 				  struct inode *dir, ext4_lblk_t block,  in htree_dirblock_to_tree()
996 		if (de->inode == 0)  in htree_dirblock_to_tree()
1048 	struct inode *dir;  in ext4_htree_fill_tree()
1145 				  struct inode *dir,  in search_dirblock()
1163 static int dx_make_map(struct inode *dir, struct ext4_dir_entry_2 *de,  in dx_make_map()
1172 		if (de->name_len && de->inode) {  in dx_make_map()
1240 	if (!de->inode)  in ext4_match()
1266 		    struct inode *dir, struct ext4_filename *fname,  in ext4_search_dir()
1317 static int is_dx_internal_node(struct inode *dir, ext4_lblk_t block,  in is_dx_internal_node()
1326 	if (de->inode == 0 &&  in is_dx_internal_node()
1344 static struct buffer_head * ext4_find_entry (struct inode *dir,  in ext4_find_entry()
1501 static struct buffer_head * ext4_dx_find_entry(struct inode *dir,  in ext4_dx_find_entry()
1555 static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)  in ext4_lookup()
1557 	struct inode *inode;  in ext4_lookup()  local
1567 	inode = NULL;  in ext4_lookup()
1569 		__u32 ino = le32_to_cpu(de->inode);  in ext4_lookup()
1580 		inode = ext4_iget_normal(dir->i_sb, ino);  in ext4_lookup()
1581 		if (inode == ERR_PTR(-ESTALE)) {  in ext4_lookup()
1587 		if (!IS_ERR(inode) && ext4_encrypted_inode(dir) &&  in ext4_lookup()
1588 		    (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||  in ext4_lookup()
1589 		     S_ISLNK(inode->i_mode)) &&  in ext4_lookup()
1591 								  inode)) {  in ext4_lookup()
1592 			iput(inode);  in ext4_lookup()
1593 			ext4_warning(inode->i_sb,  in ext4_lookup()
1596 				     (unsigned long) inode->i_ino);  in ext4_lookup()
1600 	return d_splice_alias(inode, dentry);  in ext4_lookup()
1616 	ino = le32_to_cpu(de->inode);  in ext4_get_parent()
1645 		de->inode = 0;  in dx_move_dirents()
1664 		if (de->inode && de->name_len) {  in dx_pack_dirents()
1682 static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,  in do_split()
1792 int ext4_find_dest_de(struct inode *dir, struct inode *inode,  in ext4_find_dest_de()  argument
1823 		if ((de->inode ? rlen - nlen : rlen) >= reclen)  in ext4_find_dest_de()
1839 int ext4_insert_dentry(struct inode *dir,  in ext4_insert_dentry()
1840 		       struct inode *inode,  in ext4_insert_dentry()  argument
1850 	if (de->inode) {  in ext4_insert_dentry()
1858 	de->inode = cpu_to_le32(inode->i_ino);  in ext4_insert_dentry()
1859 	ext4_set_de_type(inode->i_sb, de, inode->i_mode);  in ext4_insert_dentry()
1874 			     struct inode *dir,  in add_dirent_to_buf()
1875 			     struct inode *inode, struct ext4_dir_entry_2 *de,  in add_dirent_to_buf()  argument
1882 	if (ext4_has_metadata_csum(inode->i_sb))  in add_dirent_to_buf()
1886 		err = ext4_find_dest_de(dir, inode, bh, bh->b_data,  in add_dirent_to_buf()
1900 	err = ext4_insert_dentry(dir, inode, de, blocksize, fname);  in add_dirent_to_buf()
1932 			    struct inode *inode, struct buffer_head *bh)  in make_indexed_dir()  argument
1934 	struct inode	*dir = d_inode(dentry->d_parent);  in make_indexed_dir()
1949 	if (ext4_has_metadata_csum(inode->i_sb))  in make_indexed_dir()
2037 	retval = add_dirent_to_buf(handle, fname, dir, inode, de, bh);  in make_indexed_dir()
2062 			  struct inode *inode)  in ext4_add_entry()  argument
2064 	struct inode *dir = d_inode(dentry->d_parent);  in ext4_add_entry()
2076 	if (ext4_has_metadata_csum(inode->i_sb))  in ext4_add_entry()
2090 						   dentry, inode);  in ext4_add_entry()
2100 		retval = ext4_dx_add_entry(handle, &fname, dentry, inode);  in ext4_add_entry()
2115 		retval = add_dirent_to_buf(handle, &fname, dir, inode,  in ext4_add_entry()
2123 						  inode, bh);  in ext4_add_entry()
2136 	de->inode = 0;  in ext4_add_entry()
2144 	retval = add_dirent_to_buf(handle, &fname, dir, inode, de, bh);  in ext4_add_entry()
2149 		ext4_set_inode_state(inode, EXT4_STATE_NEWENTRY);  in ext4_add_entry()
2157 			     struct dentry *dentry, struct inode *inode)  in ext4_dx_add_entry()  argument
2162 	struct inode *dir = d_inode(dentry->d_parent);  in ext4_dx_add_entry()
2184 	err = add_dirent_to_buf(handle, fname, dir, inode, NULL, bh);  in ext4_dx_add_entry()
2276 			ext4_std_error(inode->i_sb, err);  in ext4_dx_add_entry()
2285 	err = add_dirent_to_buf(handle, fname, dir, inode, de, bh);  in ext4_dx_add_entry()
2301 			      struct inode *dir,  in ext4_generic_delete_entry()
2328 				de->inode = 0;  in ext4_generic_delete_entry()
2340 			     struct inode *dir,  in ext4_delete_entry()
2384 static void ext4_inc_count(handle_t *handle, struct inode *inode)  in ext4_inc_count()  argument
2386 	inc_nlink(inode);  in ext4_inc_count()
2387 	if (is_dx(inode) && inode->i_nlink > 1) {  in ext4_inc_count()
2389 		if (inode->i_nlink >= EXT4_LINK_MAX || inode->i_nlink == 2) {  in ext4_inc_count()
2390 			set_nlink(inode, 1);  in ext4_inc_count()
2391 			ext4_set_feature_dir_nlink(inode->i_sb);  in ext4_inc_count()
2400 static void ext4_dec_count(handle_t *handle, struct inode *inode)  in ext4_dec_count()  argument
2402 	if (!S_ISDIR(inode->i_mode) || inode->i_nlink > 2)  in ext4_dec_count()
2403 		drop_nlink(inode);  in ext4_dec_count()
2408 		struct dentry *dentry, struct inode *inode)  in ext4_add_nondir()  argument
2410 	int err = ext4_add_entry(handle, dentry, inode);  in ext4_add_nondir()
2412 		ext4_mark_inode_dirty(handle, inode);  in ext4_add_nondir()
2413 		unlock_new_inode(inode);  in ext4_add_nondir()
2414 		d_instantiate(dentry, inode);  in ext4_add_nondir()
2417 	drop_nlink(inode);  in ext4_add_nondir()
2418 	unlock_new_inode(inode);  in ext4_add_nondir()
2419 	iput(inode);  in ext4_add_nondir()
2431 static int ext4_create(struct inode *dir, struct dentry *dentry, umode_t mode,  in ext4_create()
2435 	struct inode *inode;  in ext4_create()  local
2445 	inode = ext4_new_inode_start_handle(dir, mode, &dentry->d_name, 0,  in ext4_create()
2448 	err = PTR_ERR(inode);  in ext4_create()
2449 	if (!IS_ERR(inode)) {  in ext4_create()
2450 		inode->i_op = &ext4_file_inode_operations;  in ext4_create()
2451 		inode->i_fop = &ext4_file_operations;  in ext4_create()
2452 		ext4_set_aops(inode);  in ext4_create()
2453 		err = ext4_add_nondir(handle, dentry, inode);  in ext4_create()
2464 static int ext4_mknod(struct inode *dir, struct dentry *dentry,  in ext4_mknod()
2468 	struct inode *inode;  in ext4_mknod()  local
2478 	inode = ext4_new_inode_start_handle(dir, mode, &dentry->d_name, 0,  in ext4_mknod()
2481 	err = PTR_ERR(inode);  in ext4_mknod()
2482 	if (!IS_ERR(inode)) {  in ext4_mknod()
2483 		init_special_inode(inode, inode->i_mode, rdev);  in ext4_mknod()
2484 		inode->i_op = &ext4_special_inode_operations;  in ext4_mknod()
2485 		err = ext4_add_nondir(handle, dentry, inode);  in ext4_mknod()
2496 static int ext4_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)  in ext4_tmpfile()
2499 	struct inode *inode;  in ext4_tmpfile()  local
2507 	inode = ext4_new_inode_start_handle(dir, mode,  in ext4_tmpfile()
2513 	err = PTR_ERR(inode);  in ext4_tmpfile()
2514 	if (!IS_ERR(inode)) {  in ext4_tmpfile()
2515 		inode->i_op = &ext4_file_inode_operations;  in ext4_tmpfile()
2516 		inode->i_fop = &ext4_file_operations;  in ext4_tmpfile()
2517 		ext4_set_aops(inode);  in ext4_tmpfile()
2518 		d_tmpfile(dentry, inode);  in ext4_tmpfile()
2519 		err = ext4_orphan_add(handle, inode);  in ext4_tmpfile()
2522 		mark_inode_dirty(inode);  in ext4_tmpfile()
2523 		unlock_new_inode(inode);  in ext4_tmpfile()
2532 	unlock_new_inode(inode);  in ext4_tmpfile()
2536 struct ext4_dir_entry_2 *ext4_init_dot_dotdot(struct inode *inode,  in ext4_init_dot_dotdot()  argument
2541 	de->inode = cpu_to_le32(inode->i_ino);  in ext4_init_dot_dotdot()
2546 	ext4_set_de_type(inode->i_sb, de, S_IFDIR);  in ext4_init_dot_dotdot()
2549 	de->inode = cpu_to_le32(parent_ino);  in ext4_init_dot_dotdot()
2559 	ext4_set_de_type(inode->i_sb, de, S_IFDIR);  in ext4_init_dot_dotdot()
2564 static int ext4_init_new_dir(handle_t *handle, struct inode *dir,  in ext4_init_new_dir()
2565 			     struct inode *inode)  in ext4_init_new_dir()  argument
2578 	if (ext4_test_inode_state(inode, EXT4_STATE_MAY_INLINE_DATA)) {  in ext4_init_new_dir()
2579 		err = ext4_try_create_inline_dir(handle, dir, inode);  in ext4_init_new_dir()
2586 	inode->i_size = 0;  in ext4_init_new_dir()
2587 	dir_block = ext4_append(handle, inode, &block);  in ext4_init_new_dir()
2591 	ext4_init_dot_dotdot(inode, de, blocksize, csum_size, dir->i_ino, 0);  in ext4_init_new_dir()
2592 	set_nlink(inode, 2);  in ext4_init_new_dir()
2599 	err = ext4_handle_dirty_dirent_node(handle, inode, dir_block);  in ext4_init_new_dir()
2608 static int ext4_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)  in ext4_mkdir()
2611 	struct inode *inode;  in ext4_mkdir()  local
2624 	inode = ext4_new_inode_start_handle(dir, S_IFDIR | mode,  in ext4_mkdir()
2628 	err = PTR_ERR(inode);  in ext4_mkdir()
2629 	if (IS_ERR(inode))  in ext4_mkdir()
2632 	inode->i_op = &ext4_dir_inode_operations;  in ext4_mkdir()
2633 	inode->i_fop = &ext4_dir_operations;  in ext4_mkdir()
2634 	err = ext4_init_new_dir(handle, dir, inode);  in ext4_mkdir()
2637 	err = ext4_mark_inode_dirty(handle, inode);  in ext4_mkdir()
2639 		err = ext4_add_entry(handle, dentry, inode);  in ext4_mkdir()
2642 		clear_nlink(inode);  in ext4_mkdir()
2643 		unlock_new_inode(inode);  in ext4_mkdir()
2644 		ext4_mark_inode_dirty(handle, inode);  in ext4_mkdir()
2645 		iput(inode);  in ext4_mkdir()
2653 	unlock_new_inode(inode);  in ext4_mkdir()
2654 	d_instantiate(dentry, inode);  in ext4_mkdir()
2669 int ext4_empty_dir(struct inode *inode)  in ext4_empty_dir()  argument
2677 	if (ext4_has_inline_data(inode)) {  in ext4_empty_dir()
2680 		err = empty_inline_dir(inode, &has_inline_data);  in ext4_empty_dir()
2685 	sb = inode->i_sb;  in ext4_empty_dir()
2686 	if (inode->i_size < EXT4_DIR_REC_LEN(1) + EXT4_DIR_REC_LEN(2)) {  in ext4_empty_dir()
2687 		EXT4_ERROR_INODE(inode, "invalid size");  in ext4_empty_dir()
2690 	bh = ext4_read_dirblock(inode, 0, EITHER);  in ext4_empty_dir()
2696 	if (le32_to_cpu(de->inode) != inode->i_ino ||  in ext4_empty_dir()
2697 			le32_to_cpu(de1->inode) == 0 ||  in ext4_empty_dir()
2699 		ext4_warning_inode(inode, "directory missing '.' and/or '..'");  in ext4_empty_dir()
2706 	while (offset < inode->i_size) {  in ext4_empty_dir()
2712 			bh = ext4_read_dirblock(inode, lblock, EITHER);  in ext4_empty_dir()
2717 		if (ext4_check_dir_entry(inode, NULL, de, bh,  in ext4_empty_dir()
2724 		if (le32_to_cpu(de->inode)) {  in ext4_empty_dir()
2747 int ext4_orphan_add(handle_t *handle, struct inode *inode)  in ext4_orphan_add()  argument
2749 	struct super_block *sb = inode->i_sb;  in ext4_orphan_add()
2755 	if (!sbi->s_journal || is_bad_inode(inode))  in ext4_orphan_add()
2758 	WARN_ON_ONCE(!(inode->i_state & (I_NEW | I_FREEING)) &&  in ext4_orphan_add()
2759 		     !mutex_is_locked(&inode->i_mutex));  in ext4_orphan_add()
2764 	if (!list_empty(&EXT4_I(inode)->i_orphan))  in ext4_orphan_add()
2773 	J_ASSERT((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||  in ext4_orphan_add()
2774 		  S_ISLNK(inode->i_mode)) || inode->i_nlink == 0);  in ext4_orphan_add()
2781 	err = ext4_reserve_inode_write(handle, inode, &iloc);  in ext4_orphan_add()
2790 	if (!NEXT_ORPHAN(inode) || NEXT_ORPHAN(inode) >  in ext4_orphan_add()
2793 		NEXT_ORPHAN(inode) = le32_to_cpu(sbi->s_es->s_last_orphan);  in ext4_orphan_add()
2794 		sbi->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);  in ext4_orphan_add()
2797 	list_add(&EXT4_I(inode)->i_orphan, &sbi->s_orphan);  in ext4_orphan_add()
2802 		rc = ext4_mark_iloc_dirty(handle, inode, &iloc);  in ext4_orphan_add()
2812 			list_del_init(&EXT4_I(inode)->i_orphan);  in ext4_orphan_add()
2816 	jbd_debug(4, "superblock will point to %lu\n", inode->i_ino);  in ext4_orphan_add()
2818 			inode->i_ino, NEXT_ORPHAN(inode));  in ext4_orphan_add()
2828 int ext4_orphan_del(handle_t *handle, struct inode *inode)  in ext4_orphan_del()  argument
2831 	struct ext4_inode_info *ei = EXT4_I(inode);  in ext4_orphan_del()
2832 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);  in ext4_orphan_del()
2840 	WARN_ON_ONCE(!(inode->i_state & (I_NEW | I_FREEING)) &&  in ext4_orphan_del()
2841 		     !mutex_is_locked(&inode->i_mutex));  in ext4_orphan_del()
2848 		err = ext4_reserve_inode_write(handle, inode, &iloc);  in ext4_orphan_del()
2852 	jbd_debug(4, "remove inode %lu from orphan list\n", inode->i_ino);  in ext4_orphan_del()
2866 	ino_next = NEXT_ORPHAN(inode);  in ext4_orphan_del()
2877 		err = ext4_handle_dirty_super(handle, inode->i_sb);  in ext4_orphan_del()
2880 		struct inode *i_prev =  in ext4_orphan_del()
2896 	NEXT_ORPHAN(inode) = 0;  in ext4_orphan_del()
2897 	err = ext4_mark_iloc_dirty(handle, inode, &iloc);  in ext4_orphan_del()
2899 	ext4_std_error(inode->i_sb, err);  in ext4_orphan_del()
2907 static int ext4_rmdir(struct inode *dir, struct dentry *dentry)  in ext4_rmdir()
2910 	struct inode *inode;  in ext4_rmdir()  local
2931 	inode = d_inode(dentry);  in ext4_rmdir()
2934 	if (le32_to_cpu(de->inode) != inode->i_ino)  in ext4_rmdir()
2938 	if (!ext4_empty_dir(inode))  in ext4_rmdir()
2955 	if (!EXT4_DIR_LINK_EMPTY(inode))  in ext4_rmdir()
2956 		ext4_warning_inode(inode,  in ext4_rmdir()
2959 			     inode->i_nlink);  in ext4_rmdir()
2960 	inode->i_version++;  in ext4_rmdir()
2961 	clear_nlink(inode);  in ext4_rmdir()
2965 	inode->i_size = 0;  in ext4_rmdir()
2966 	ext4_orphan_add(handle, inode);  in ext4_rmdir()
2967 	inode->i_ctime = dir->i_ctime = dir->i_mtime = ext4_current_time(inode);  in ext4_rmdir()
2968 	ext4_mark_inode_dirty(handle, inode);  in ext4_rmdir()
2980 static int ext4_unlink(struct inode *dir, struct dentry *dentry)  in ext4_unlink()
2983 	struct inode *inode;  in ext4_unlink()  local
3005 	inode = d_inode(dentry);  in ext4_unlink()
3008 	if (le32_to_cpu(de->inode) != inode->i_ino)  in ext4_unlink()
3022 	if (inode->i_nlink == 0) {  in ext4_unlink()
3023 		ext4_warning_inode(inode, "Deleting file '%.*s' with no links",  in ext4_unlink()
3025 		set_nlink(inode, 1);  in ext4_unlink()
3033 	drop_nlink(inode);  in ext4_unlink()
3034 	if (!inode->i_nlink)  in ext4_unlink()
3035 		ext4_orphan_add(handle, inode);  in ext4_unlink()
3036 	inode->i_ctime = ext4_current_time(inode);  in ext4_unlink()
3037 	ext4_mark_inode_dirty(handle, inode);  in ext4_unlink()
3047 static int ext4_symlink(struct inode *dir,  in ext4_symlink()
3051 	struct inode *inode;  in ext4_symlink()  local
3105 	inode = ext4_new_inode_start_handle(dir, S_IFLNK|S_IRWXUGO,  in ext4_symlink()
3109 	if (IS_ERR(inode)) {  in ext4_symlink()
3112 		err = PTR_ERR(inode);  in ext4_symlink()
3124 		err = ext4_fname_usr_to_disk(inode, &istr, &ostr);  in ext4_symlink()
3129 		inode->i_op = &ext4_encrypted_symlink_inode_operations;  in ext4_symlink()
3134 			inode->i_op = &ext4_symlink_inode_operations;  in ext4_symlink()
3135 		ext4_set_aops(inode);  in ext4_symlink()
3146 		drop_nlink(inode);  in ext4_symlink()
3147 		err = ext4_orphan_add(handle, inode);  in ext4_symlink()
3152 		err = __page_symlink(inode, disk_link.name, disk_link.len, 1);  in ext4_symlink()
3167 		set_nlink(inode, 1);  in ext4_symlink()
3168 		err = ext4_orphan_del(handle, inode);  in ext4_symlink()
3173 		ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);  in ext4_symlink()
3175 			inode->i_op = &ext4_fast_symlink_inode_operations;  in ext4_symlink()
3176 			inode->i_link = (char *)&EXT4_I(inode)->i_data;  in ext4_symlink()
3178 		memcpy((char *)&EXT4_I(inode)->i_data, disk_link.name,  in ext4_symlink()
3180 		inode->i_size = disk_link.len - 1;  in ext4_symlink()
3182 	EXT4_I(inode)->i_disksize = inode->i_size;  in ext4_symlink()
3183 	err = ext4_add_nondir(handle, dentry, inode);  in ext4_symlink()
3194 	clear_nlink(inode);  in ext4_symlink()
3195 	unlock_new_inode(inode);  in ext4_symlink()
3196 	iput(inode);  in ext4_symlink()
3203 		     struct inode *dir, struct dentry *dentry)  in ext4_link()
3206 	struct inode *inode = d_inode(old_dentry);  in ext4_link()  local
3209 	if (inode->i_nlink >= EXT4_LINK_MAX)  in ext4_link()
3212 	    !ext4_is_child_context_consistent_with_parent(dir, inode))  in ext4_link()
3228 	inode->i_ctime = ext4_current_time(inode);  in ext4_link()
3229 	ext4_inc_count(handle, inode);  in ext4_link()
3230 	ihold(inode);  in ext4_link()
3232 	err = ext4_add_entry(handle, dentry, inode);  in ext4_link()
3234 		ext4_mark_inode_dirty(handle, inode);  in ext4_link()
3238 		if (inode->i_nlink == 1)  in ext4_link()
3239 			ext4_orphan_del(handle, inode);  in ext4_link()
3240 		d_instantiate(dentry, inode);  in ext4_link()
3242 		drop_nlink(inode);  in ext4_link()
3243 		iput(inode);  in ext4_link()
3258 					struct inode *inode,  in ext4_get_first_dir_block()  argument
3265 	if (!ext4_has_inline_data(inode)) {  in ext4_get_first_dir_block()
3266 		bh = ext4_read_dirblock(inode, 0, EITHER);  in ext4_get_first_dir_block()
3273 					inode->i_sb->s_blocksize);  in ext4_get_first_dir_block()
3278 	return ext4_get_first_inline_block(inode, parent_de, retval);  in ext4_get_first_dir_block()
3282 	struct inode *dir;
3284 	struct inode *inode;  member
3303 	ent->dir_bh = ext4_get_first_dir_block(handle, ent->inode,  in ext4_rename_dir_prepare()
3308 	if (le32_to_cpu(ent->parent_de->inode) != ent->dir->i_ino)  in ext4_rename_dir_prepare()
3319 	ent->parent_de->inode = cpu_to_le32(dir_ino);  in ext4_rename_dir_finish()
3322 		if (is_dx(ent->inode)) {  in ext4_rename_dir_finish()
3324 							   ent->inode,  in ext4_rename_dir_finish()
3328 							       ent->inode,  in ext4_rename_dir_finish()
3332 		retval = ext4_mark_inode_dirty(handle, ent->inode);  in ext4_rename_dir_finish()
3350 	ent->de->inode = cpu_to_le32(ino);  in ext4_setent()
3372 static int ext4_find_delete_entry(handle_t *handle, struct inode *dir,  in ext4_find_delete_entry()
3399 	if (le32_to_cpu(ent->de->inode) != ent->inode->i_ino ||  in ext4_rename_delete()
3432 static struct inode *ext4_whiteout_for_rename(struct ext4_renament *ent,  in ext4_whiteout_for_rename()
3435 	struct inode *wh;  in ext4_whiteout_for_rename()
3473 static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,  in ext4_rename()
3474 		       struct inode *new_dir, struct dentry *new_dentry,  in ext4_rename()
3481 		.inode = d_inode(old_dentry),  in ext4_rename()
3486 		.inode = d_inode(new_dentry),  in ext4_rename()
3490 	struct inode *whiteout = NULL;  in ext4_rename()
3503 	if (new.inode) {  in ext4_rename()
3504 		retval = dquot_initialize(new.inode);  in ext4_rename()
3519 	if (!old.bh || le32_to_cpu(old.de->inode) != old.inode->i_ino)  in ext4_rename()
3525 							  old.inode)) {  in ext4_rename()
3538 		if (!new.inode) {  in ext4_rename()
3543 	if (new.inode && !test_opt(new.dir->i_sb, NO_AUTO_DA_ALLOC))  in ext4_rename()
3544 		ext4_alloc_da_blocks(old.inode);  in ext4_rename()
3567 	if (S_ISDIR(old.inode->i_mode)) {  in ext4_rename()
3568 		if (new.inode) {  in ext4_rename()
3570 			if (!ext4_empty_dir(new.inode))  in ext4_rename()
3604 		retval = ext4_add_entry(handle, new.dentry, old.inode);  in ext4_rename()
3609 				     old.inode->i_ino, old_file_type);  in ext4_rename()
3621 	old.inode->i_ctime = ext4_current_time(old.inode);  in ext4_rename()
3622 	ext4_mark_inode_dirty(handle, old.inode);  in ext4_rename()
3631 	if (new.inode) {  in ext4_rename()
3632 		ext4_dec_count(handle, new.inode);  in ext4_rename()
3633 		new.inode->i_ctime = ext4_current_time(new.inode);  in ext4_rename()
3643 		if (new.inode) {  in ext4_rename()
3647 			clear_nlink(new.inode);  in ext4_rename()
3655 	if (new.inode) {  in ext4_rename()
3656 		ext4_mark_inode_dirty(handle, new.inode);  in ext4_rename()
3657 		if (!new.inode->i_nlink)  in ext4_rename()
3658 			ext4_orphan_add(handle, new.inode);  in ext4_rename()
3677 static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,  in ext4_cross_rename()
3678 			     struct inode *new_dir, struct dentry *new_dentry)  in ext4_cross_rename()
3684 		.inode = d_inode(old_dentry),  in ext4_cross_rename()
3689 		.inode = d_inode(new_dentry),  in ext4_cross_rename()
3698 							   old.inode) ||  in ext4_cross_rename()
3700 							   new.inode)))  in ext4_cross_rename()
3721 	if (!old.bh || le32_to_cpu(old.de->inode) != old.inode->i_ino)  in ext4_cross_rename()
3733 	if (!new.bh || le32_to_cpu(new.de->inode) != new.inode->i_ino)  in ext4_cross_rename()
3748 	if (S_ISDIR(old.inode->i_mode)) {  in ext4_cross_rename()
3754 	if (S_ISDIR(new.inode->i_mode)) {  in ext4_cross_rename()
3775 	retval = ext4_setent(handle, &new, old.inode->i_ino, old.de->file_type);  in ext4_cross_rename()
3779 	retval = ext4_setent(handle, &old, new.inode->i_ino, new_file_type);  in ext4_cross_rename()
3787 	old.inode->i_ctime = ext4_current_time(old.inode);  in ext4_cross_rename()
3788 	new.inode->i_ctime = ext4_current_time(new.inode);  in ext4_cross_rename()
3789 	ext4_mark_inode_dirty(handle, old.inode);  in ext4_cross_rename()
3790 	ext4_mark_inode_dirty(handle, new.inode);  in ext4_cross_rename()
3816 static int ext4_rename2(struct inode *old_dir, struct dentry *old_dentry,  in ext4_rename2()
3817 			struct inode *new_dir, struct dentry *new_dentry,  in ext4_rename2()