> On Jul 3, 2024, at 11:18 AM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > The actual way > to find the file struct still would be nasty, but I'll try to think of > something good for that. It is that very code that I've asked to be replaced before this series can be merged. We have a set of patches for improving that aspect that Neil is working on now. When Mike presented LOCALIO to me at LSF, my initial suggestion was to use pNFS. I think Jeff had the same reaction. IMO the design document should, as part of the problem statement, explain why a pNFS-only solution is not workable. I'm also concerned about applications in one container being able to reach around existing mount namespace silos into the NFS server container's file systems. Obviously the NFS protocol has its own authorization that would grant permission for that access, but via the network. -- Chuck Lever
