fs/ext4/xattr.c

953 			     struct buffer_head *block_bh, size_t value_len,
992 	blocks = (value_len + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
1518 			    size_t value_len, u32 hash)
1535 	ea_data = kvmalloc(value_len, GFP_KERNEL);
1547 		if (i_size_read(ea_inode) == value_len &&
1548 		    !ext4_xattr_inode_read(ea_inode, ea_data, value_len) &&
1550 						    value_len) &&
1551 		    !memcmp(value, ea_data, value_len)) {
1569 		struct inode *inode, const void *value, size_t value_len)
1576 	err = ext4_xattr_inode_alloc_quota(inode, value_len);
1580 	hash = ext4_xattr_inode_hash(EXT4_SB(inode->i_sb), value, value_len);
1581 	ea_inode = ext4_xattr_inode_cache_find(inode, value, value_len, hash);
1592 		ext4_xattr_inode_free_quota(inode, NULL, value_len);
1596 	err = ext4_xattr_inode_write(handle, ea_inode, value, value_len);
1609 	ext4_xattr_inode_free_quota(inode, NULL, value_len);
1636 	new_size = (i->value && !in_inode) ? EXT4_XATTR_SIZE(i->value_len) : 0;
1646 		here->e_value_size = cpu_to_le32(i->value_len);
1650 			memcpy(val, i->value, i->value_len);
1652 			memset(val + i->value_len, 0, new_size - i->value_len);
1791 		} else if (i->value_len) {
1798 				memcpy(val, i->value, i->value_len);
1800 				memset(val + i->value_len, 0,
1801 				       new_size - i->value_len);
1804 		here->e_value_size = cpu_to_le32(i->value_len);
1857 	ea_idebug(inode, "name=%d.%s, value=%p, value_len=%ld",
1858 		  i->name_index, i->name, i->value, (long)i->value_len);
1908 		WARN_ON_ONCE(!i->value_len);
1911 					i->value, i->value_len);
2261 		WARN_ON_ONCE(!i->value_len);
2264 					i->value, i->value_len);
2305 	if (le32_to_cpu(s->here->e_value_size) != i->value_len)
2308 	return !memcmp(value, i->value, i->value_len);
2343 		      const char *name, const void *value, size_t value_len,
2350 		.value_len = value_len,
2381 						   value_len,
2436 		    (EXT4_XATTR_SIZE(i.value_len) >
2463 				    i.value_len && !i.in_inode) {
2494 int ext4_xattr_set_credits(struct inode *inode, size_t value_len,
2512 						    value_len, is_create);
2531 	       const void *value, size_t value_len, int flags)
2543 	error = ext4_xattr_set_credits(inode, value_len, flags & XATTR_CREATE,
2555 					      value, value_len, flags);
2607 		.value_len = 0,
2657 	i.value_len = value_size;
2669 	i.value_len = 0;