Re: tmpfs, NFS, file handles

Trond Myklebust
2002-02-20T19:43:20Z

>>>>> " " == Peter J Braam <braam@clusterfs.com> writes:

> Would the following also work?

> - have a 32 bit counter: set inode->i_ino to count++

That is exactly what iunique() does except that it also checks for
uniqueness and allows you to specify a minimum value. Sooner or later
your 32-bit counter will wrap round...

> - up the generation number each time the counter warps.

> Between boot cycles NFS could still get confused, that might be
> helped by setting the initial generation to the system time.

Yep. That is what the 'fat' filesystem does.

Cheers,
Trond