5  *	Symlink handling routines for the OSTA-UDF(tm) filesystem.
13  *  (C) 1998-2001 Ben Fennema
35 	struct pathComponent *pc;  in udf_pc_to_char()  local
41 	tolen--;  in udf_pc_to_char()
43 		pc = (struct pathComponent *)(from + elen);  in udf_pc_to_char()
45 		switch (pc->componentType) {  in udf_pc_to_char()
51 			if (pc->lengthComponentIdent > 0) {  in udf_pc_to_char()
52 				elen += pc->lengthComponentIdent;  in udf_pc_to_char()
58 				return -ENAMETOOLONG;  in udf_pc_to_char()
61 			tolen--;  in udf_pc_to_char()
65 				return -ENAMETOOLONG;  in udf_pc_to_char()
68 			tolen -= 3;  in udf_pc_to_char()
72 				return -ENAMETOOLONG;  in udf_pc_to_char()
75 			tolen -= 2;  in udf_pc_to_char()
76 			/* that would be . - just ignore */  in udf_pc_to_char()
79 			elen += pc->lengthComponentIdent;  in udf_pc_to_char()
81 				return -EIO;  in udf_pc_to_char()
82 			comp_len = udf_get_filename(sb, pc->componentIdent,  in udf_pc_to_char()
83 						    pc->lengthComponentIdent,  in udf_pc_to_char()
89 			tolen -= comp_len;  in udf_pc_to_char()
91 				return -ENAMETOOLONG;  in udf_pc_to_char()
93 			tolen--;  in udf_pc_to_char()
98 		p[-1] = '\0';  in udf_pc_to_char()
106 	struct inode *inode = page->mapping->host;  in udf_symlink_filler()
115 	if (inode->i_size > inode->i_sb->s_blocksize) {  in udf_symlink_filler()
116 		err = -ENAMETOOLONG;  in udf_symlink_filler()
123 	down_read(&iinfo->i_data_sem);  in udf_symlink_filler()
124 	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {  in udf_symlink_filler()
125 		symlink = iinfo->i_data + iinfo->i_lenEAttr;  in udf_symlink_filler()
127 		bh = sb_bread(inode->i_sb, pos);  in udf_symlink_filler()
130 			err = -EIO;  in udf_symlink_filler()
134 		symlink = bh->b_data;  in udf_symlink_filler()
137 	err = udf_pc_to_char(inode->i_sb, symlink, inode->i_size, p, PAGE_SIZE);  in udf_symlink_filler()
142 	up_read(&iinfo->i_data_sem);  in udf_symlink_filler()
148 	up_read(&iinfo->i_data_sem);  in udf_symlink_filler()
159 	struct dentry *dentry = path->dentry;  in udf_symlink_getattr()
164 	page = read_mapping_page(inode->i_mapping, 0, NULL);  in udf_symlink_getattr()
168 	 * UDF uses non-trivial encoding of symlinks so i_size does not match  in udf_symlink_getattr()
176 	stat->size = strlen(page_address(page));  in udf_symlink_getattr()