MmDeleteTeb

void __fastcall MmDeleteTeb(ULONG_PTR a1, unsigned __int64 a2){
  void *v3; 
  INT64 v4; 
  _KAPC_STATE ApcState; 
  memset(&ApcState, 0, sizeof(ApcState));
  KiStackAttachProcess((_KPROCESS *)a1, 0i64, &ApcState);
  v3 = (void *)MiObtainReferencedVadEx(a2, 0, &v4);
  if( v3 )
    MiFreeToSubAllocatedRegion(v3);
  KiUnstackDetachProcess(&ApcState, 0i64);
}

Referenced by:

PspAllocateThread
PspExitThread
PspInsertThread