[NFS-Ganesha-Devel] Question: NFSv3 open files after create

I'm developing a proprietary FSAL in Ganesha 2.6.3. When using NFSv3, I see that nfs3_create calls open2, which presumably is supposed to create the file and open it. My question is when does the file get closed? I have a huge amount of open files in my FSAL and not sure how to close them. Even in VFS, I see that created files stay open. Bill