nfsv4 server patches and status

[Neil Brown]

On Wednesday July 11, jlayton at redhat.com wrote:
> 
> C) have some sort of munging of the filehandle by the server so
> filehandles are likely to change between reboots

C wins.  The filehandles generated for tmpfs contain a timestamp of
then the file was created (see setting and usage of i_generation in
mm/shmem.c).  So it is very unlikely that filehandles will very be
reused (this was a deliberate design goal) even over a reboot.

It could still be confusing for the client if a mountpoint suddenly
has to change filehandle/inumber as would happen at reboot.

That could be a good argument for not using a tmpfs filesystem...

NeilBrown