[GIT PULL] fscache rewrite -- please drop for now

[David Howells]

Hi Linus,

Can you drop the fscache rewrite pull for now.  We've seem an issue in NFS
integration and need to rework the read helper a bit.  I made an assumption
that fscache will always be able to request that the netfs perform a read of a
certain minimum size - but with NFS you can break that by setting rsize too
small.

We need to make the read helper able to make multiple netfs reads.  This can
help ceph too.

Thanks,
David