zfs_acl_alloc
zfs_acl_t *zfs_acl_alloc(int);
aclp = zfs_acl_alloc(version);
*aclp = zfs_acl_alloc(zfs_acl_version_zp(zp));
aclp = zfs_acl_alloc(paclp->z_version);
zfs_acl_alloc(zfs_acl_version_zp(dzp));
aclp = zfs_acl_alloc(zfs_acl_version(zfsvfs->z_version));