ext2_extattr_inode_delete
error = ext2_extattr_inode_delete(ip, attrnamespace, name);
error = ext2_extattr_inode_delete(ip, attrnamespace, name);
int ext2_extattr_inode_delete(struct inode *ip, int attrnamespace,
error = ext2_extattr_inode_delete(ip, ap->a_attrnamespace, ap->a_name);