[Labeled-nfs] [PATCH 13/13] NFSD: Label change notification for NFSv4 Server

[Trond Myklebust]

On Mon, 2007-11-19 at 17:20 -0500, Matthew N. Dodd wrote:
> Trond Myklebust wrote:
> > This proposal, OTOH, will force the server to track all clients that
> > access a labelled file, and to notify them all synchronously if ever a
> > change is made. That can never scale if, say, you want to relabel the
> > entire filesystem as SELinux appears wont to do.
> 
> The server already tracks client file access.

> This would be a totally different matter if I were adding client open 
> tracking code.

The problem isn't tracking the open state. It is the recall.

Trond