linux-kernel - Re: [PATCH v2] NFSd: use network-namespace-aware cache registering routines

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Message-ID: <20111207224701.GA23621@fieldses.org>
Date:	Wed, 7 Dec 2011 17:47:01 -0500
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Stanislav Kinsbursky <skinsbursky@...allels.com>
Cc:	neilb@...e.de, linux-nfs@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] NFSd: use network-namespace-aware cache registering
 routines

Thanks, applied.

On Wed, Dec 07, 2011 at 12:57:56PM +0300, Stanislav Kinsbursky wrote:
> v2: cache_register_net() and cache_unregister_net() GPL exports added
> 
> This is a cleanup patch. Hope, some day generic cache_register() and
> cache_unregister() will be removed.
> 
> Signed-off-by: Stanislav Kinsbursky <skinsbursky@...allels.com>
> 
> ---
>  fs/nfsd/export.c    |   10 +++++-----
>  fs/nfsd/nfs4idmap.c |   11 ++++++-----
>  net/sunrpc/cache.c  |    2 ++
>  3 files changed, 13 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
> diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
> index 72ad836..b8daa57 100644
> --- a/net/sunrpc/cache.c
> +++ b/net/sunrpc/cache.c
> @@ -1641,6 +1641,7 @@ int cache_register_net(struct cache_detail *cd, struct net *net)
>  		sunrpc_destroy_cache_detail(cd);
>  	return ret;
>  }
> +EXPORT_SYMBOL_GPL(cache_register_net);
>  
>  int cache_register(struct cache_detail *cd)
>  {
> @@ -1653,6 +1654,7 @@ void cache_unregister_net(struct cache_detail *cd, struct net *net)
>  	remove_cache_proc_entries(cd, net);
>  	sunrpc_destroy_cache_detail(cd);
>  }
> +EXPORT_SYMBOL_GPL(cache_unregister_net);
>  
>  void cache_unregister(struct cache_detail *cd)
>  {
> 
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