Re: [PATCH] NFSd: use network-namespace-aware cache registering routines

["J. Bruce Fields" <bfields@fieldses.org>]

On Tue, Dec 06, 2011 at 04:02:34PM -0500, J. Bruce Fields wrote:
> On Tue, Dec 06, 2011 at 05:04:31PM +0300, Stanislav Kinsbursky wrote:
> > This is a cleanup patch. Some day (hope, soon enough) generic cache_register()
> > and cache_unregister() will be removed.
> 
> OK, applying for 3.3.--b.

Whoops, no I'm not, these make modular builds fail.  Looks like we need
a couple EXPORT_SYMBOL_GPL()'s.  Could you resend?

--b.

> 
> > 
> > Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
> > 
> > ---
> >  fs/nfsd/export.c    |   10 +++++-----
> >  fs/nfsd/nfs4idmap.c |   11 ++++++-----
> >  2 files changed, 11 insertions(+), 10 deletions(-)
> > 
> > diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
> > index 62f3b90..d1feeef 100644
> > --- a/fs/nfsd/export.c
> > +++ b/fs/nfsd/export.c
> > @@ -1226,12 +1226,12 @@ nfsd_export_init(void)
> >  	int rv;
> >  	dprintk("nfsd: initializing export module.\n");
> >  
> > -	rv = cache_register(&svc_export_cache);
> > +	rv = cache_register_net(&svc_export_cache, &init_net);
> >  	if (rv)
> >  		return rv;
> > -	rv = cache_register(&svc_expkey_cache);
> > +	rv = cache_register_net(&svc_expkey_cache, &init_net);
> >  	if (rv)
> > -		cache_unregister(&svc_export_cache);
> > +		cache_unregister_net(&svc_export_cache, &init_net);
> >  	return rv;
> >  
> >  }
> > @@ -1255,8 +1255,8 @@ nfsd_export_shutdown(void)
> >  
> >  	dprintk("nfsd: shutting down export module.\n");
> >  
> > -	cache_unregister(&svc_expkey_cache);
> > -	cache_unregister(&svc_export_cache);
> > +	cache_unregister_net(&svc_expkey_cache, &init_net);
> > +	cache_unregister_net(&svc_export_cache, &init_net);
> >  	svcauth_unix_purge();
> >  
> >  	dprintk("nfsd: export shutdown complete.\n");
> > diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
> > index 55780a2..9409627 100644
> > --- a/fs/nfsd/nfs4idmap.c
> > +++ b/fs/nfsd/nfs4idmap.c
> > @@ -36,6 +36,7 @@
> >  #include <linux/seq_file.h>
> >  #include <linux/sched.h>
> >  #include <linux/slab.h>
> > +#include <net/net_namespace.h>
> >  #include "idmap.h"
> >  #include "nfsd.h"
> >  
> > @@ -466,20 +467,20 @@ nfsd_idmap_init(void)
> >  {
> >  	int rv;
> >  
> > -	rv = cache_register(&idtoname_cache);
> > +	rv = cache_register_net(&idtoname_cache, &init_net);
> >  	if (rv)
> >  		return rv;
> > -	rv = cache_register(&nametoid_cache);
> > +	rv = cache_register_net(&nametoid_cache, &init_net);
> >  	if (rv)
> > -		cache_unregister(&idtoname_cache);
> > +		cache_unregister_net(&idtoname_cache, &init_net);
> >  	return rv;
> >  }
> >  
> >  void
> >  nfsd_idmap_shutdown(void)
> >  {
> > -	cache_unregister(&idtoname_cache);
> > -	cache_unregister(&nametoid_cache);
> > +	cache_unregister_net(&idtoname_cache, &init_net);
> > +	cache_unregister_net(&nametoid_cache, &init_net);
> >  }
> >  
> >  static int
> >