But wouldn't it better to find a way to run it in userland for safety? I know NFS was already part of the kernel. And I presume that by living inside the kerne

But wouldn't it better to find a way to run it in userland for safety? I know NFS was already part of the kernel. And I presume that by living inside the kernel there is a tight integration with file buffers/caching, and probably some extra performance too. Is that the main motivation here?