restrict pfs write operations to write commits
restrict pfs write operations to write commits

klucar/pachyderm,alexdebrie/pachyderm,henrylee2cn/pachyderm,phacops/pachyderm,alexdebrie/pachyderm,sambooo/pachyderm,henrylee2cn/pachyderm,klucar/pachyderm,ShengjieLuo/pachyderm,ShengjieLuo/pachyderm,alexdebrie/pachyderm,kunthar/pachyderm,phacops/pachyderm,sambooo/pachyderm,kunthar/pachyderm,ShengjieLuo/pachyderm,sambooo/pachyderm,klucar/pachyderm