zfs_secpolicy_destroy_perms
extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
extern int zfs_secpolicy_destroy_perms(const char *, cred_t *);
err = zfs_secpolicy_destroy_perms(snapname, cr);
return (zfs_secpolicy_destroy_perms(zc->zc_name, cr));
error = zfs_secpolicy_destroy_perms(nvpair_name(pair), cr);