On Fri, Jul 05, 2024 at 01:35:18PM +0000, Chuck Lever III wrote: > I agree: I think the requirement for NFSv3 in this situation > needs a clear justification. Both peers are recent vintage > Linux kernels; both peers can use NFSv4.x, there's no > explicit need for backwards compatibility in the use cases > that have been provided so far. More importantly both peers are in fact the exact same Linux kernel instance. Which is the important point here - we are doing a bypass for a kernel talking to itself, although a kernel suffering from multiple personality (dis)order where the different sides might expose very different system views.