3  *  linux/fs/ext2/dir.c
12  *  linux/fs/minix/dir.c
87 	struct inode *dir = mapping->host;  in ext2_commit_chunk()  local
89 	inode_inc_iversion(dir);  in ext2_commit_chunk()
92 	if (pos+len > dir->i_size) {  in ext2_commit_chunk()
93 		i_size_write(dir, pos+len);  in ext2_commit_chunk()
94 		mark_inode_dirty(dir);  in ext2_commit_chunk()
101 	struct inode *dir = folio->mapping->host;  in ext2_check_folio()  local
102 	struct super_block *sb = dir->i_sb;  in ext2_check_folio()
103 	unsigned chunk_size = ext2_chunk_size(dir);  in ext2_check_folio()
110 	if (dir->i_size < folio_pos(folio) + limit) {  in ext2_check_folio()
111 		limit = offset_in_folio(folio, dir->i_size);  in ext2_check_folio()
144 			"of chunk size", dir->i_ino);  in ext2_check_folio()
164 			dir->i_ino, error, folio_pos(folio) + offs,  in ext2_check_folio()
174 			dir->i_ino, folio_pos(folio) + offs,  in ext2_check_folio()
190 static void *ext2_get_folio(struct inode *dir, unsigned long n,  in ext2_get_folio()  argument
193 	struct address_space *mapping = dir->i_mapping;  in ext2_get_folio()
343 struct ext2_dir_entry_2 *ext2_find_entry (struct inode *dir,  in ext2_find_entry()  argument
350 	unsigned long npages = dir_pages(dir);  in ext2_find_entry()
351 	struct ext2_inode_info *ei = EXT2_I(dir);  in ext2_find_entry()
362 		char *kaddr = ext2_get_folio(dir, n, 0, foliop);  in ext2_find_entry()
367 		kaddr += ext2_last_byte(dir, n) - reclen;  in ext2_find_entry()
370 				ext2_error(dir->i_sb, __func__,  in ext2_find_entry()
384 		if (unlikely(n > (dir->i_blocks >> (PAGE_SHIFT - 9)))) {  in ext2_find_entry()
385 			ext2_error(dir->i_sb, __func__,  in ext2_find_entry()
386 				"dir %lu size %lld exceeds block count %llu",  in ext2_find_entry()
387 				dir->i_ino, dir->i_size,  in ext2_find_entry()
388 				(unsigned long long)dir->i_blocks);  in ext2_find_entry()
413 struct ext2_dir_entry_2 *ext2_dotdot(struct inode *dir, struct folio **foliop)  in ext2_dotdot()  argument
415 	ext2_dirent *de = ext2_get_folio(dir, 0, 0, foliop);  in ext2_dotdot()
422 int ext2_inode_by_name(struct inode *dir, const struct qstr *child, ino_t *ino)  in ext2_inode_by_name()  argument
427 	de = ext2_find_entry(dir, child, &folio);  in ext2_inode_by_name()
441 static int ext2_handle_dirsync(struct inode *dir)  in ext2_handle_dirsync()  argument
445 	err = filemap_write_and_wait(dir->i_mapping);  in ext2_handle_dirsync()
447 		err = sync_inode_metadata(dir, 1);  in ext2_handle_dirsync()
451 int ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,  in ext2_set_link()  argument
468 		inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));  in ext2_set_link()
469 	EXT2_I(dir)->i_flags &= ~EXT2_BTREE_FL;  in ext2_set_link()
470 	mark_inode_dirty(dir);  in ext2_set_link()
471 	return ext2_handle_dirsync(dir);  in ext2_set_link()
479 	struct inode *dir = d_inode(dentry->d_parent);  in ext2_add_link()  local
482 	unsigned chunk_size = ext2_chunk_size(dir);  in ext2_add_link()
487 	unsigned long npages = dir_pages(dir);  in ext2_add_link()
498 		char *kaddr = ext2_get_folio(dir, n, 0, &folio);  in ext2_add_link()
504 		dir_end = kaddr + ext2_last_byte(dir, n);  in ext2_add_link()
517 				ext2_error(dir->i_sb, __func__,  in ext2_add_link()
555 	inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));  in ext2_add_link()
556 	EXT2_I(dir)->i_flags &= ~EXT2_BTREE_FL;  in ext2_add_link()
557 	mark_inode_dirty(dir);  in ext2_add_link()
558 	err = ext2_handle_dirsync(dir);  in ext2_add_link()
572 int ext2_delete_entry(struct ext2_dir_entry_2 *dir, struct folio *folio)  in ext2_delete_entry()  argument
581 	from = offset_in_folio(folio, dir);  in ext2_delete_entry()
582 	to = from + ext2_rec_len_from_disk(dir->rec_len);  in ext2_delete_entry()
583 	kaddr = (char *)dir - from;  in ext2_delete_entry()
587 	while ((char*)de < (char*)dir) {  in ext2_delete_entry()
607 	dir->inode = 0;  in ext2_delete_entry()