SYSDATA_RELEASE
curr = !!(nt->sysdata_fields & SYSDATA_RELEASE);
nt->sysdata_fields |= SYSDATA_RELEASE;
disable_sysdata_feature(nt, SYSDATA_RELEASE);
if (nt->sysdata_fields & SYSDATA_RELEASE)
release_enabled = !!(nt->sysdata_fields & SYSDATA_RELEASE);