Daire Byrne <Daire.Byrne@xxxxxxxxxxxxxx> wrote: > Does FS-Cache support mounting an NFS filesystem without "fsc" and then > later adding it with a remount? No. I hadn't thought about it. > Is there any reason why it couldn't support this? It could be done, but it would require iteration over all the in-RAM inodes in the superblock to give them cache tokens, and possibly iteration over all pages attached to those inodes to store any that aren't yet encached. > The main reason I ask is that I would like to mount an NFS root filesystem > using a simple basic initrd (busybox) but then use fs-cache once I have a > more complete Linux distro available (i.e. diskless booting). I don't know whether it helps, but you can tell NFS to start using the cache before there is actually a cache. Once the cache is started, NFS will automatically start using it - at least for files opened since. > On an unrelated note, have you tested cachefiles with ext4? It doesn't seem > to work for me (CacheFiles: Lookup failed error -1). I don't recall whether I tried ext4 or not. I'll have a look. David -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
