67 #define IS_LAST_ENTRY(entry) (*(__u32 *)(entry) == 0)  argument
147 ext4_xattr_check_names(struct ext4_xattr_entry *entry, void *end)  in ext4_xattr_check_names()  argument
149 	while (!IS_LAST_ENTRY(entry)) {  in ext4_xattr_check_names()
150 		struct ext4_xattr_entry *next = EXT4_XATTR_NEXT(entry);  in ext4_xattr_check_names()
153 		entry = next;  in ext4_xattr_check_names()
171 ext4_xattr_check_entry(struct ext4_xattr_entry *entry, size_t size)  in ext4_xattr_check_entry()  argument
173 	size_t value_size = le32_to_cpu(entry->e_value_size);  in ext4_xattr_check_entry()
175 	if (entry->e_value_block != 0 || value_size > size ||  in ext4_xattr_check_entry()
176 	    le16_to_cpu(entry->e_value_offs) + value_size > size)  in ext4_xattr_check_entry()
185 	struct ext4_xattr_entry *entry;  in ext4_xattr_find_entry()  local
192 	entry = *pentry;  in ext4_xattr_find_entry()
193 	for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {  in ext4_xattr_find_entry()
194 		cmp = name_index - entry->e_name_index;  in ext4_xattr_find_entry()
196 			cmp = name_len - entry->e_name_len;  in ext4_xattr_find_entry()
198 			cmp = memcmp(name, entry->e_name, name_len);  in ext4_xattr_find_entry()
202 	*pentry = entry;  in ext4_xattr_find_entry()
203 	if (!cmp && ext4_xattr_check_entry(entry, size))  in ext4_xattr_find_entry()
213 	struct ext4_xattr_entry *entry;  in ext4_xattr_block_get()  local
237 	entry = BFIRST(bh);  in ext4_xattr_block_get()
238 	error = ext4_xattr_find_entry(&entry, name_index, name, bh->b_size, 1);  in ext4_xattr_block_get()
243 	size = le32_to_cpu(entry->e_value_size);  in ext4_xattr_block_get()
248 		memcpy(buffer, bh->b_data + le16_to_cpu(entry->e_value_offs),  in ext4_xattr_block_get()
263 	struct ext4_xattr_entry *entry;  in ext4_xattr_ibody_get()  local
277 	entry = IFIRST(header);  in ext4_xattr_ibody_get()
279 	error = ext4_xattr_check_names(entry, end);  in ext4_xattr_ibody_get()
282 	error = ext4_xattr_find_entry(&entry, name_index, name,  in ext4_xattr_ibody_get()
283 				      end - (void *)entry, 0);  in ext4_xattr_ibody_get()
286 	size = le32_to_cpu(entry->e_value_size);  in ext4_xattr_ibody_get()
292 		       le16_to_cpu(entry->e_value_offs), size);  in ext4_xattr_ibody_get()
328 ext4_xattr_list_entries(struct inode *inode, struct ext4_xattr_entry *entry,  in ext4_xattr_list_entries()  argument
333 	for (; !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) {  in ext4_xattr_list_entries()
335 			ext4_xattr_handler(entry->e_name_index);  in ext4_xattr_list_entries()
339 						    entry->e_name,  in ext4_xattr_list_entries()
340 						    entry->e_name_len);  in ext4_xattr_list_entries()
1097 static void ext4_xattr_shift_entries(struct ext4_xattr_entry *entry,  in ext4_xattr_shift_entries()  argument
1101 	struct ext4_xattr_entry *last = entry;  in ext4_xattr_shift_entries()
1126 	struct ext4_xattr_entry *entry, *last, *first;  in ext4_expand_extra_isize_ea()  local
1145 	entry = IFIRST(header);  in ext4_expand_extra_isize_ea()
1152 	base = start = entry;  in ext4_expand_extra_isize_ea()
1155 	last = entry;  in ext4_expand_extra_isize_ea()
1160 		entry = IFIRST(header);  in ext4_expand_extra_isize_ea()
1161 		ext4_xattr_shift_entries(entry,	EXT4_I(inode)->i_extra_isize  in ext4_expand_extra_isize_ea()
1232 		entry = NULL;  in ext4_expand_extra_isize_ea()
1241 					entry = last;  in ext4_expand_extra_isize_ea()
1247 		if (entry == NULL) {  in ext4_expand_extra_isize_ea()
1249 				entry = small_entry;  in ext4_expand_extra_isize_ea()
1261 		offs = le16_to_cpu(entry->e_value_offs);  in ext4_expand_extra_isize_ea()
1262 		size = le32_to_cpu(entry->e_value_size);  in ext4_expand_extra_isize_ea()
1263 		entry_size = EXT4_XATTR_LEN(entry->e_name_len);  in ext4_expand_extra_isize_ea()
1264 		i.name_index = entry->e_name_index,  in ext4_expand_extra_isize_ea()
1266 		b_entry_name = kmalloc(entry->e_name_len + 1, GFP_NOFS);  in ext4_expand_extra_isize_ea()
1274 		memcpy(b_entry_name, entry->e_name, entry->e_name_len);  in ext4_expand_extra_isize_ea()
1275 		b_entry_name[entry->e_name_len] = '\0';  in ext4_expand_extra_isize_ea()
1289 		entry = IFIRST(header);  in ext4_expand_extra_isize_ea()
1295 		ext4_xattr_shift_entries(entry, EXT4_I(inode)->i_extra_isize -  in ext4_expand_extra_isize_ea()
1518 					 struct ext4_xattr_entry *entry)  in ext4_xattr_hash_entry()  argument
1521 	char *name = entry->e_name;  in ext4_xattr_hash_entry()
1524 	for (n = 0; n < entry->e_name_len; n++) {  in ext4_xattr_hash_entry()
1530 	if (entry->e_value_block == 0 && entry->e_value_size != 0) {  in ext4_xattr_hash_entry()
1532 			le16_to_cpu(entry->e_value_offs));  in ext4_xattr_hash_entry()
1533 		for (n = (le32_to_cpu(entry->e_value_size) +  in ext4_xattr_hash_entry()
1540 	entry->e_hash = cpu_to_le32(hash);  in ext4_xattr_hash_entry()
1554 			      struct ext4_xattr_entry *entry)  in ext4_xattr_rehash()  argument
1559 	ext4_xattr_hash_entry(header, entry);  in ext4_xattr_rehash()