On Fri, Jun 07, 2024 at 09:47:08AM +0200, Niklas Schnelle wrote: > I trust your judgement and was unsure too. I think for the > s390_mmio_read/write syscalls the only existing users out there are via > rdma-core, so unless Jason tells us that he thinks they could also be > affected by the lack of page fault handling I see no problem in going > upstream only. rdma doesn't use the fault path for the doorbell mmio. Jason