diff mbox

[1/2] NFSv4.2: Added NFS v4.2 support to the NFS client

Message ID 1361484911-17537-2-git-send-email-steved@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Steve Dickson Feb. 21, 2013, 10:15 p.m. UTC
This enable NFSv4.2 support. To enable this code the
CONFIG_NFS_V4_2 Kconfig define needs to be set and
the -o v4.2 mount option need to be used.

Signed-off-by: Steve Dickson <steved@redhat.com>
---
 fs/nfs/Kconfig       | 11 ++++++++++-
 fs/nfs/callback.c    |  3 +++
 fs/nfs/nfs4client.c  |  5 +++++
 fs/nfs/nfs4proc.c    |  3 +++
 fs/nfs/super.c       |  7 ++++++-
 include/linux/nfs4.h |  4 ++++
 6 files changed, 31 insertions(+), 2 deletions(-)

Comments

Trond Myklebust Feb. 21, 2013, 10:22 p.m. UTC | #1
On Thu, 2013-02-21 at 17:15 -0500, Steve Dickson wrote:
> This enable NFSv4.2 support. To enable this code the
> CONFIG_NFS_V4_2 Kconfig define needs to be set and
> the -o v4.2 mount option need to be used.
> 
> Signed-off-by: Steve Dickson <steved@redhat.com>
> ---
>  fs/nfs/Kconfig       | 11 ++++++++++-
>  fs/nfs/callback.c    |  3 +++
>  fs/nfs/nfs4client.c  |  5 +++++
>  fs/nfs/nfs4proc.c    |  3 +++
>  fs/nfs/super.c       |  7 ++++++-
>  include/linux/nfs4.h |  4 ++++
>  6 files changed, 31 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
> index 3861a1f..247db6d 100644
> --- a/fs/nfs/Kconfig
> +++ b/fs/nfs/Kconfig
> @@ -104,6 +104,15 @@ config NFS_V4_1
>  
>  	  If unsure, say N.
>  
> +config NFS_V4_2
> +	bool "NFS client support for NFSv4.2"
> +	depends on NFS_V4_1
> +	help
> +	  This option enables support for minor version 1 of the NFSv4 protocol
> +	  (RFC 5661) in the kernel's NFS client.
> +
> +	  If unsure, say N.
> +
>  config PNFS_FILE_LAYOUT
>  	tristate
>  	depends on NFS_V4_1
> @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
>  
>  config NFS_V4_SECURITY_LABEL
>  	bool "Provide Security Label support for NFSv4 client"
> -	depends on NFS_V4 && SECURITY
> +	depends on NFS_V4_2 && SECURITY
>  	help

Just have NFS_V4_SECURITY_LABEL be automatically selected by NFS_V4_2.
Requiring users to manually select both makes little sense...


>  	Say Y here if you want enable fine-grained security label attribute
> diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
> index 5088b57..4058ec8 100644
> --- a/fs/nfs/callback.c
> +++ b/fs/nfs/callback.c
> @@ -281,6 +281,9 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct n
>  		case 1:

		case 2:

>  			ret = nfs41_callback_up_net(serv, net);
>  			break;
> +		case 2:
> +			ret = nfs41_callback_up_net(serv, net);
> +			break;
>  		default:
>  			printk(KERN_ERR "NFS: unknown callback version: %d\n",
>  					minorversion);
> diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
> index 2e9779b..2987fd6 100644
> --- a/fs/nfs/nfs4client.c
> +++ b/fs/nfs/nfs4client.c
> @@ -66,6 +66,11 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
>  	if (err)
>  		goto error;
>  
> +	if (cl_init->minorversion > NFS4_MAX_MINOR_VERSION) {
> +		err = -EINVAL;
> +		goto error;
> +	}
> +		
>  	spin_lock_init(&clp->cl_lock);
>  	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
>  	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index 40c1d1f..08fc8e2 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -7136,6 +7136,9 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
>  #if defined(CONFIG_NFS_V4_1)
>  	[1] = &nfs_v4_1_minor_ops,
>  #endif
> +#if defined(CONFIG_NFS_V4_2)
> +	[2] = &nfs_v4_1_minor_ops,
> +#endif
>  };
>  
>  const struct inode_operations nfs4_dir_inode_operations = {
> diff --git a/fs/nfs/super.c b/fs/nfs/super.c
> index 4e78f93..d35582c 100644
> --- a/fs/nfs/super.c
> +++ b/fs/nfs/super.c
> @@ -269,7 +269,7 @@ static match_table_t nfs_local_lock_tokens = {
>  
>  enum {
>  	Opt_vers_2, Opt_vers_3, Opt_vers_4, Opt_vers_4_0,
> -	Opt_vers_4_1,
> +	Opt_vers_4_1, Opt_vers_4_2,
>  
>  	Opt_vers_err
>  };
> @@ -280,6 +280,7 @@ static match_table_t nfs_vers_tokens = {
>  	{ Opt_vers_4, "4" },
>  	{ Opt_vers_4_0, "4.0" },
>  	{ Opt_vers_4_1, "4.1" },
> +	{ Opt_vers_4_2, "4.2" },
>  
>  	{ Opt_vers_err, NULL }
>  };
> @@ -1143,6 +1144,10 @@ static int nfs_parse_version_string(char *string,
>  		mnt->version = 4;
>  		mnt->minorversion = 1;
>  		break;
> +	case Opt_vers_4_2:
> +		mnt->version = 4;
> +		mnt->minorversion = 2;
> +		break;
>  	default:
>  		return 0;
>  	}
> diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
> index aab8bd8..e9c040a 100644
> --- a/include/linux/nfs4.h
> +++ b/include/linux/nfs4.h
> @@ -394,11 +394,15 @@ enum lock_type4 {
>  #define NFS4_VERSION 4
>  #define NFS4_MINOR_VERSION 0
>  
> +#if defined(CONFIG_NFS_V4_2)
> +#define NFS4_MAX_MINOR_VERSION 2
> +#else
>  #if defined(CONFIG_NFS_V4_1)
>  #define NFS4_MAX_MINOR_VERSION 1
>  #else
>  #define NFS4_MAX_MINOR_VERSION 0
>  #endif /* CONFIG_NFS_V4_1 */
> +#endif /* CONFIG_NFS_V4_2 */
>  
>  #define NFS4_DEBUG 1
>
Steve Dickson Feb. 21, 2013, 11:13 p.m. UTC | #2
On 21/02/13 17:22, Myklebust, Trond wrote:
> On Thu, 2013-02-21 at 17:15 -0500, Steve Dickson wrote:
>> > This enable NFSv4.2 support. To enable this code the
>> > CONFIG_NFS_V4_2 Kconfig define needs to be set and
>> > the -o v4.2 mount option need to be used.
>> > 
>> > Signed-off-by: Steve Dickson <steved@redhat.com>
>> > ---
>> >  fs/nfs/Kconfig       | 11 ++++++++++-
>> >  fs/nfs/callback.c    |  3 +++
>> >  fs/nfs/nfs4client.c  |  5 +++++
>> >  fs/nfs/nfs4proc.c    |  3 +++
>> >  fs/nfs/super.c       |  7 ++++++-
>> >  include/linux/nfs4.h |  4 ++++
>> >  6 files changed, 31 insertions(+), 2 deletions(-)
>> > 
>> > diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
>> > index 3861a1f..247db6d 100644
>> > --- a/fs/nfs/Kconfig
>> > +++ b/fs/nfs/Kconfig
>> > @@ -104,6 +104,15 @@ config NFS_V4_1
>> >  
>> >  	  If unsure, say N.
>> >  
>> > +config NFS_V4_2
>> > +	bool "NFS client support for NFSv4.2"
>> > +	depends on NFS_V4_1
>> > +	help
>> > +	  This option enables support for minor version 1 of the NFSv4 protocol
>> > +	  (RFC 5661) in the kernel's NFS client.
>> > +
>> > +	  If unsure, say N.
>> > +
>> >  config PNFS_FILE_LAYOUT
>> >  	tristate
>> >  	depends on NFS_V4_1
>> > @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
>> >  
>> >  config NFS_V4_SECURITY_LABEL
>> >  	bool "Provide Security Label support for NFSv4 client"
>> > -	depends on NFS_V4 && SECURITY
>> > +	depends on NFS_V4_2 && SECURITY
>> >  	help
> Just have NFS_V4_SECURITY_LABEL be automatically selected by NFS_V4_2.
> Requiring users to manually select both makes little sense...
> 
> 
Yeah... that make sense... 

steved.
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Bruce Fields Feb. 22, 2013, 3:13 p.m. UTC | #3
On Thu, Feb 21, 2013 at 05:15:10PM -0500, Steve Dickson wrote:
> This enable NFSv4.2 support. To enable this code the
> CONFIG_NFS_V4_2 Kconfig define needs to be set and
> the -o v4.2 mount option need to be used.
> 
> Signed-off-by: Steve Dickson <steved@redhat.com>
> ---
>  fs/nfs/Kconfig       | 11 ++++++++++-
>  fs/nfs/callback.c    |  3 +++
>  fs/nfs/nfs4client.c  |  5 +++++
>  fs/nfs/nfs4proc.c    |  3 +++
>  fs/nfs/super.c       |  7 ++++++-
>  include/linux/nfs4.h |  4 ++++
>  6 files changed, 31 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
> index 3861a1f..247db6d 100644
> --- a/fs/nfs/Kconfig
> +++ b/fs/nfs/Kconfig
> @@ -104,6 +104,15 @@ config NFS_V4_1
>  
>  	  If unsure, say N.
>  
> +config NFS_V4_2
> +	bool "NFS client support for NFSv4.2"
> +	depends on NFS_V4_1
> +	help
> +	  This option enables support for minor version 1 of the NFSv4 protocol
> +	  (RFC 5661) in the kernel's NFS client.
> +
> +	  If unsure, say N.
> +
>  config PNFS_FILE_LAYOUT
>  	tristate
>  	depends on NFS_V4_1
> @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
>  
>  config NFS_V4_SECURITY_LABEL
>  	bool "Provide Security Label support for NFSv4 client"
> -	depends on NFS_V4 && SECURITY
> +	depends on NFS_V4_2 && SECURITY
>  	help
>  
>  	Say Y here if you want enable fine-grained security label attribute
> diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
> index 5088b57..4058ec8 100644
> --- a/fs/nfs/callback.c
> +++ b/fs/nfs/callback.c
> @@ -281,6 +281,9 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct n
>  		case 1:
>  			ret = nfs41_callback_up_net(serv, net);
>  			break;
> +		case 2:
> +			ret = nfs41_callback_up_net(serv, net);
> +			break;
>  		default:
>  			printk(KERN_ERR "NFS: unknown callback version: %d\n",
>  					minorversion);
> diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
> index 2e9779b..2987fd6 100644
> --- a/fs/nfs/nfs4client.c
> +++ b/fs/nfs/nfs4client.c
> @@ -66,6 +66,11 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
>  	if (err)
>  		goto error;
>  
> +	if (cl_init->minorversion > NFS4_MAX_MINOR_VERSION) {
> +		err = -EINVAL;
> +		goto error;
> +	}

Why wasn't this check needed before?

> +		
>  	spin_lock_init(&clp->cl_lock);
>  	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
>  	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index 40c1d1f..08fc8e2 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -7136,6 +7136,9 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
>  #if defined(CONFIG_NFS_V4_1)
>  	[1] = &nfs_v4_1_minor_ops,
>  #endif
> +#if defined(CONFIG_NFS_V4_2)
> +	[2] = &nfs_v4_1_minor_ops,

But then nfs_v4_minor_ops[2]->minor_version = 1.

I think you want to create another structure--just define an
nfs_v4_2_minor_ops field that's the same as nfs_v4_1_minor_ops except
for the minor_version field.

--b.

> +#endif
>  };
>  
>  const struct inode_operations nfs4_dir_inode_operations = {
> diff --git a/fs/nfs/super.c b/fs/nfs/super.c
> index 4e78f93..d35582c 100644
> --- a/fs/nfs/super.c
> +++ b/fs/nfs/super.c
> @@ -269,7 +269,7 @@ static match_table_t nfs_local_lock_tokens = {
>  
>  enum {
>  	Opt_vers_2, Opt_vers_3, Opt_vers_4, Opt_vers_4_0,
> -	Opt_vers_4_1,
> +	Opt_vers_4_1, Opt_vers_4_2,
>  
>  	Opt_vers_err
>  };
> @@ -280,6 +280,7 @@ static match_table_t nfs_vers_tokens = {
>  	{ Opt_vers_4, "4" },
>  	{ Opt_vers_4_0, "4.0" },
>  	{ Opt_vers_4_1, "4.1" },
> +	{ Opt_vers_4_2, "4.2" },
>  
>  	{ Opt_vers_err, NULL }
>  };
> @@ -1143,6 +1144,10 @@ static int nfs_parse_version_string(char *string,
>  		mnt->version = 4;
>  		mnt->minorversion = 1;
>  		break;
> +	case Opt_vers_4_2:
> +		mnt->version = 4;
> +		mnt->minorversion = 2;
> +		break;
>  	default:
>  		return 0;
>  	}
> diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
> index aab8bd8..e9c040a 100644
> --- a/include/linux/nfs4.h
> +++ b/include/linux/nfs4.h
> @@ -394,11 +394,15 @@ enum lock_type4 {
>  #define NFS4_VERSION 4
>  #define NFS4_MINOR_VERSION 0
>  
> +#if defined(CONFIG_NFS_V4_2)
> +#define NFS4_MAX_MINOR_VERSION 2
> +#else
>  #if defined(CONFIG_NFS_V4_1)
>  #define NFS4_MAX_MINOR_VERSION 1
>  #else
>  #define NFS4_MAX_MINOR_VERSION 0
>  #endif /* CONFIG_NFS_V4_1 */
> +#endif /* CONFIG_NFS_V4_2 */
>  
>  #define NFS4_DEBUG 1
>  
> -- 
> 1.8.1.2
> 
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Bruce Fields Feb. 22, 2013, 3:28 p.m. UTC | #4
On Thu, Feb 21, 2013 at 06:13:40PM -0500, Steve Dickson wrote:
> 
> 
> On 21/02/13 17:22, Myklebust, Trond wrote:
> > On Thu, 2013-02-21 at 17:15 -0500, Steve Dickson wrote:
> >> > This enable NFSv4.2 support. To enable this code the
> >> > CONFIG_NFS_V4_2 Kconfig define needs to be set and
> >> > the -o v4.2 mount option need to be used.
> >> > 
> >> > Signed-off-by: Steve Dickson <steved@redhat.com>
> >> > ---
> >> >  fs/nfs/Kconfig       | 11 ++++++++++-
> >> >  fs/nfs/callback.c    |  3 +++
> >> >  fs/nfs/nfs4client.c  |  5 +++++
> >> >  fs/nfs/nfs4proc.c    |  3 +++
> >> >  fs/nfs/super.c       |  7 ++++++-
> >> >  include/linux/nfs4.h |  4 ++++
> >> >  6 files changed, 31 insertions(+), 2 deletions(-)
> >> > 
> >> > diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
> >> > index 3861a1f..247db6d 100644
> >> > --- a/fs/nfs/Kconfig
> >> > +++ b/fs/nfs/Kconfig
> >> > @@ -104,6 +104,15 @@ config NFS_V4_1
> >> >  
> >> >  	  If unsure, say N.
> >> >  
> >> > +config NFS_V4_2
> >> > +	bool "NFS client support for NFSv4.2"
> >> > +	depends on NFS_V4_1
> >> > +	help
> >> > +	  This option enables support for minor version 1 of the NFSv4 protocol
> >> > +	  (RFC 5661) in the kernel's NFS client.
> >> > +
> >> > +	  If unsure, say N.
> >> > +
> >> >  config PNFS_FILE_LAYOUT
> >> >  	tristate
> >> >  	depends on NFS_V4_1
> >> > @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
> >> >  
> >> >  config NFS_V4_SECURITY_LABEL
> >> >  	bool "Provide Security Label support for NFSv4 client"
> >> > -	depends on NFS_V4 && SECURITY
> >> > +	depends on NFS_V4_2 && SECURITY
> >> >  	help
> > Just have NFS_V4_SECURITY_LABEL be automatically selected by NFS_V4_2.
> > Requiring users to manually select both makes little sense...
> > 
> > 
> Yeah... that make sense... 

Why do we even need the two config options (both NFS_SECURITY_LABEL and
NFS_V4_2)?  Until we have more 4.2 features it seems redundant.

--b.
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Trond Myklebust Feb. 22, 2013, 3:34 p.m. UTC | #5
On Fri, 2013-02-22 at 10:28 -0500, J. Bruce Fields wrote:
> On Thu, Feb 21, 2013 at 06:13:40PM -0500, Steve Dickson wrote:
> > 
> > 
> > On 21/02/13 17:22, Myklebust, Trond wrote:
> > > On Thu, 2013-02-21 at 17:15 -0500, Steve Dickson wrote:
> > >> > This enable NFSv4.2 support. To enable this code the
> > >> > CONFIG_NFS_V4_2 Kconfig define needs to be set and
> > >> > the -o v4.2 mount option need to be used.
> > >> > 
> > >> > Signed-off-by: Steve Dickson <steved@redhat.com>
> > >> > ---
> > >> >  fs/nfs/Kconfig       | 11 ++++++++++-
> > >> >  fs/nfs/callback.c    |  3 +++
> > >> >  fs/nfs/nfs4client.c  |  5 +++++
> > >> >  fs/nfs/nfs4proc.c    |  3 +++
> > >> >  fs/nfs/super.c       |  7 ++++++-
> > >> >  include/linux/nfs4.h |  4 ++++
> > >> >  6 files changed, 31 insertions(+), 2 deletions(-)
> > >> > 
> > >> > diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
> > >> > index 3861a1f..247db6d 100644
> > >> > --- a/fs/nfs/Kconfig
> > >> > +++ b/fs/nfs/Kconfig
> > >> > @@ -104,6 +104,15 @@ config NFS_V4_1
> > >> >  
> > >> >  	  If unsure, say N.
> > >> >  
> > >> > +config NFS_V4_2
> > >> > +	bool "NFS client support for NFSv4.2"
> > >> > +	depends on NFS_V4_1
> > >> > +	help
> > >> > +	  This option enables support for minor version 1 of the NFSv4 protocol
> > >> > +	  (RFC 5661) in the kernel's NFS client.
> > >> > +
> > >> > +	  If unsure, say N.
> > >> > +
> > >> >  config PNFS_FILE_LAYOUT
> > >> >  	tristate
> > >> >  	depends on NFS_V4_1
> > >> > @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
> > >> >  
> > >> >  config NFS_V4_SECURITY_LABEL
> > >> >  	bool "Provide Security Label support for NFSv4 client"
> > >> > -	depends on NFS_V4 && SECURITY
> > >> > +	depends on NFS_V4_2 && SECURITY
> > >> >  	help
> > > Just have NFS_V4_SECURITY_LABEL be automatically selected by NFS_V4_2.
> > > Requiring users to manually select both makes little sense...
> > > 
> > > 
> > Yeah... that make sense... 
> 
> Why do we even need the two config options (both NFS_SECURITY_LABEL and
> NFS_V4_2)?  Until we have more 4.2 features it seems redundant.

Not really. CONFIG_NFS_SECURITY_LABEL has a dependency on
CONFIG_SECURITY that I don't expect copy offload and other future
NFSv4.2 features to have.
Steve Dickson Feb. 22, 2013, 4:38 p.m. UTC | #6
On 22/02/13 10:13, J. Bruce Fields wrote:
> On Thu, Feb 21, 2013 at 05:15:10PM -0500, Steve Dickson wrote:
>> This enable NFSv4.2 support. To enable this code the
>> CONFIG_NFS_V4_2 Kconfig define needs to be set and
>> the -o v4.2 mount option need to be used.
>>
>> Signed-off-by: Steve Dickson <steved@redhat.com>
>> ---
>>  fs/nfs/Kconfig       | 11 ++++++++++-
>>  fs/nfs/callback.c    |  3 +++
>>  fs/nfs/nfs4client.c  |  5 +++++
>>  fs/nfs/nfs4proc.c    |  3 +++
>>  fs/nfs/super.c       |  7 ++++++-
>>  include/linux/nfs4.h |  4 ++++
>>  6 files changed, 31 insertions(+), 2 deletions(-)
>>
>> diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
>> index 3861a1f..247db6d 100644
>> --- a/fs/nfs/Kconfig
>> +++ b/fs/nfs/Kconfig
>> @@ -104,6 +104,15 @@ config NFS_V4_1
>>  
>>  	  If unsure, say N.
>>  
>> +config NFS_V4_2
>> +	bool "NFS client support for NFSv4.2"
>> +	depends on NFS_V4_1
>> +	help
>> +	  This option enables support for minor version 1 of the NFSv4 protocol
>> +	  (RFC 5661) in the kernel's NFS client.
>> +
>> +	  If unsure, say N.
>> +
>>  config PNFS_FILE_LAYOUT
>>  	tristate
>>  	depends on NFS_V4_1
>> @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
>>  
>>  config NFS_V4_SECURITY_LABEL
>>  	bool "Provide Security Label support for NFSv4 client"
>> -	depends on NFS_V4 && SECURITY
>> +	depends on NFS_V4_2 && SECURITY
>>  	help
>>  
>>  	Say Y here if you want enable fine-grained security label attribute
>> diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
>> index 5088b57..4058ec8 100644
>> --- a/fs/nfs/callback.c
>> +++ b/fs/nfs/callback.c
>> @@ -281,6 +281,9 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct n
>>  		case 1:
>>  			ret = nfs41_callback_up_net(serv, net);
>>  			break;
>> +		case 2:
>> +			ret = nfs41_callback_up_net(serv, net);
>> +			break;
>>  		default:
>>  			printk(KERN_ERR "NFS: unknown callback version: %d\n",
>>  					minorversion);
>> diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
>> index 2e9779b..2987fd6 100644
>> --- a/fs/nfs/nfs4client.c
>> +++ b/fs/nfs/nfs4client.c
>> @@ -66,6 +66,11 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
>>  	if (err)
>>  		goto error;
>>  
>> +	if (cl_init->minorversion > NFS4_MAX_MINOR_VERSION) {
>> +		err = -EINVAL;
>> +		goto error;
>> +	}
> 
> Why wasn't this check needed before?
It was not needed because the checks in nfs_parse_version_string caught
the mismatch minor version... but since minor version 2 is no longer
a mismatch and those checks in nfs_parse_version_string are not
covered by an ifdef this check is now needed... 

> 
>> +		
>>  	spin_lock_init(&clp->cl_lock);
>>  	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
>>  	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
>> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
>> index 40c1d1f..08fc8e2 100644
>> --- a/fs/nfs/nfs4proc.c
>> +++ b/fs/nfs/nfs4proc.c
>> @@ -7136,6 +7136,9 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
>>  #if defined(CONFIG_NFS_V4_1)
>>  	[1] = &nfs_v4_1_minor_ops,
>>  #endif
>> +#if defined(CONFIG_NFS_V4_2)
>> +	[2] = &nfs_v4_1_minor_ops,
> 
> But then nfs_v4_minor_ops[2]->minor_version = 1.
> 
> I think you want to create another structure--just define an
> nfs_v4_2_minor_ops field that's the same as nfs_v4_1_minor_ops except
> for the minor_version field.
That's how I started out: 

#if defined(CONFIG_NFS_V4_2)
static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
    .minor_version = 2,
    .call_sync = nfs4_call_sync_sequence,
    .match_stateid = nfs41_match_stateid,
    .find_root_sec = nfs41_find_root_sec,
    .reboot_recovery_ops = &nfs41_reboot_recovery_ops,
    .nograce_recovery_ops = &nfs41_nograce_recovery_ops,
    .state_renewal_ops = &nfs41_state_renewal_ops,
};
#endif

but it just seem like such a big waste of space... I could switch back... 

Trond??

steved.

> 
> --b.
> 
>> +#endif
>>  };
>>  
>>  const struct inode_operations nfs4_dir_inode_operations = {
>> diff --git a/fs/nfs/super.c b/fs/nfs/super.c
>> index 4e78f93..d35582c 100644
>> --- a/fs/nfs/super.c
>> +++ b/fs/nfs/super.c
>> @@ -269,7 +269,7 @@ static match_table_t nfs_local_lock_tokens = {
>>  
>>  enum {
>>  	Opt_vers_2, Opt_vers_3, Opt_vers_4, Opt_vers_4_0,
>> -	Opt_vers_4_1,
>> +	Opt_vers_4_1, Opt_vers_4_2,
>>  
>>  	Opt_vers_err
>>  };
>> @@ -280,6 +280,7 @@ static match_table_t nfs_vers_tokens = {
>>  	{ Opt_vers_4, "4" },
>>  	{ Opt_vers_4_0, "4.0" },
>>  	{ Opt_vers_4_1, "4.1" },
>> +	{ Opt_vers_4_2, "4.2" },
>>  
>>  	{ Opt_vers_err, NULL }
>>  };
>> @@ -1143,6 +1144,10 @@ static int nfs_parse_version_string(char *string,
>>  		mnt->version = 4;
>>  		mnt->minorversion = 1;
>>  		break;
>> +	case Opt_vers_4_2:
>> +		mnt->version = 4;
>> +		mnt->minorversion = 2;
>> +		break;
>>  	default:
>>  		return 0;
>>  	}
>> diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
>> index aab8bd8..e9c040a 100644
>> --- a/include/linux/nfs4.h
>> +++ b/include/linux/nfs4.h
>> @@ -394,11 +394,15 @@ enum lock_type4 {
>>  #define NFS4_VERSION 4
>>  #define NFS4_MINOR_VERSION 0
>>  
>> +#if defined(CONFIG_NFS_V4_2)
>> +#define NFS4_MAX_MINOR_VERSION 2
>> +#else
>>  #if defined(CONFIG_NFS_V4_1)
>>  #define NFS4_MAX_MINOR_VERSION 1
>>  #else
>>  #define NFS4_MAX_MINOR_VERSION 0
>>  #endif /* CONFIG_NFS_V4_1 */
>> +#endif /* CONFIG_NFS_V4_2 */
>>  
>>  #define NFS4_DEBUG 1
>>  
>> -- 
>> 1.8.1.2
>>
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Bruce Fields Feb. 22, 2013, 4:58 p.m. UTC | #7
On Fri, Feb 22, 2013 at 11:38:25AM -0500, Steve Dickson wrote:
> 
> 
> On 22/02/13 10:13, J. Bruce Fields wrote:
> > On Thu, Feb 21, 2013 at 05:15:10PM -0500, Steve Dickson wrote:
> >> This enable NFSv4.2 support. To enable this code the
> >> CONFIG_NFS_V4_2 Kconfig define needs to be set and
> >> the -o v4.2 mount option need to be used.
> >>
> >> Signed-off-by: Steve Dickson <steved@redhat.com>
> >> ---
> >>  fs/nfs/Kconfig       | 11 ++++++++++-
> >>  fs/nfs/callback.c    |  3 +++
> >>  fs/nfs/nfs4client.c  |  5 +++++
> >>  fs/nfs/nfs4proc.c    |  3 +++
> >>  fs/nfs/super.c       |  7 ++++++-
> >>  include/linux/nfs4.h |  4 ++++
> >>  6 files changed, 31 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
> >> index 3861a1f..247db6d 100644
> >> --- a/fs/nfs/Kconfig
> >> +++ b/fs/nfs/Kconfig
> >> @@ -104,6 +104,15 @@ config NFS_V4_1
> >>  
> >>  	  If unsure, say N.
> >>  
> >> +config NFS_V4_2
> >> +	bool "NFS client support for NFSv4.2"
> >> +	depends on NFS_V4_1
> >> +	help
> >> +	  This option enables support for minor version 1 of the NFSv4 protocol
> >> +	  (RFC 5661) in the kernel's NFS client.
> >> +
> >> +	  If unsure, say N.
> >> +
> >>  config PNFS_FILE_LAYOUT
> >>  	tristate
> >>  	depends on NFS_V4_1
> >> @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
> >>  
> >>  config NFS_V4_SECURITY_LABEL
> >>  	bool "Provide Security Label support for NFSv4 client"
> >> -	depends on NFS_V4 && SECURITY
> >> +	depends on NFS_V4_2 && SECURITY
> >>  	help
> >>  
> >>  	Say Y here if you want enable fine-grained security label attribute
> >> diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
> >> index 5088b57..4058ec8 100644
> >> --- a/fs/nfs/callback.c
> >> +++ b/fs/nfs/callback.c
> >> @@ -281,6 +281,9 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct n
> >>  		case 1:
> >>  			ret = nfs41_callback_up_net(serv, net);
> >>  			break;
> >> +		case 2:
> >> +			ret = nfs41_callback_up_net(serv, net);
> >> +			break;
> >>  		default:
> >>  			printk(KERN_ERR "NFS: unknown callback version: %d\n",
> >>  					minorversion);
> >> diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
> >> index 2e9779b..2987fd6 100644
> >> --- a/fs/nfs/nfs4client.c
> >> +++ b/fs/nfs/nfs4client.c
> >> @@ -66,6 +66,11 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
> >>  	if (err)
> >>  		goto error;
> >>  
> >> +	if (cl_init->minorversion > NFS4_MAX_MINOR_VERSION) {
> >> +		err = -EINVAL;
> >> +		goto error;
> >> +	}
> > 
> > Why wasn't this check needed before?
> It was not needed because the checks in nfs_parse_version_string caught
> the mismatch minor version... but since minor version 2 is no longer
> a mismatch and those checks in nfs_parse_version_string are not
> covered by an ifdef this check is now needed... 

NFSv4.1 could be configured out too.  How did it manage to return an
error for minorversion == 1 in the !CONFIG_NFS_V4_1 case before?

> >> +		
> >>  	spin_lock_init(&clp->cl_lock);
> >>  	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
> >>  	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
> >> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> >> index 40c1d1f..08fc8e2 100644
> >> --- a/fs/nfs/nfs4proc.c
> >> +++ b/fs/nfs/nfs4proc.c
> >> @@ -7136,6 +7136,9 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
> >>  #if defined(CONFIG_NFS_V4_1)
> >>  	[1] = &nfs_v4_1_minor_ops,
> >>  #endif
> >> +#if defined(CONFIG_NFS_V4_2)
> >> +	[2] = &nfs_v4_1_minor_ops,
> > 
> > But then nfs_v4_minor_ops[2]->minor_version = 1.
> > 
> > I think you want to create another structure--just define an
> > nfs_v4_2_minor_ops field that's the same as nfs_v4_1_minor_ops except
> > for the minor_version field.
> That's how I started out: 
> 
> #if defined(CONFIG_NFS_V4_2)
> static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
>     .minor_version = 2,
>     .call_sync = nfs4_call_sync_sequence,
>     .match_stateid = nfs41_match_stateid,
>     .find_root_sec = nfs41_find_root_sec,
>     .reboot_recovery_ops = &nfs41_reboot_recovery_ops,
>     .nograce_recovery_ops = &nfs41_nograce_recovery_ops,
>     .state_renewal_ops = &nfs41_state_renewal_ops,
> };
> #endif
> 
> but it just seem like such a big waste of space...

Correctness first....

--b.

> I could switch back... 
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Steve Dickson Feb. 22, 2013, 5:01 p.m. UTC | #8
On 22/02/13 11:58, J. Bruce Fields wrote:
> On Fri, Feb 22, 2013 at 11:38:25AM -0500, Steve Dickson wrote:
>>
>>
>> On 22/02/13 10:13, J. Bruce Fields wrote:
>>> On Thu, Feb 21, 2013 at 05:15:10PM -0500, Steve Dickson wrote:
>>>> This enable NFSv4.2 support. To enable this code the
>>>> CONFIG_NFS_V4_2 Kconfig define needs to be set and
>>>> the -o v4.2 mount option need to be used.
>>>>
>>>> Signed-off-by: Steve Dickson <steved@redhat.com>
>>>> ---
>>>>  fs/nfs/Kconfig       | 11 ++++++++++-
>>>>  fs/nfs/callback.c    |  3 +++
>>>>  fs/nfs/nfs4client.c  |  5 +++++
>>>>  fs/nfs/nfs4proc.c    |  3 +++
>>>>  fs/nfs/super.c       |  7 ++++++-
>>>>  include/linux/nfs4.h |  4 ++++
>>>>  6 files changed, 31 insertions(+), 2 deletions(-)
>>>>
>>>> diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
>>>> index 3861a1f..247db6d 100644
>>>> --- a/fs/nfs/Kconfig
>>>> +++ b/fs/nfs/Kconfig
>>>> @@ -104,6 +104,15 @@ config NFS_V4_1
>>>>  
>>>>  	  If unsure, say N.
>>>>  
>>>> +config NFS_V4_2
>>>> +	bool "NFS client support for NFSv4.2"
>>>> +	depends on NFS_V4_1
>>>> +	help
>>>> +	  This option enables support for minor version 1 of the NFSv4 protocol
>>>> +	  (RFC 5661) in the kernel's NFS client.
>>>> +
>>>> +	  If unsure, say N.
>>>> +
>>>>  config PNFS_FILE_LAYOUT
>>>>  	tristate
>>>>  	depends on NFS_V4_1
>>>> @@ -133,7 +142,7 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
>>>>  
>>>>  config NFS_V4_SECURITY_LABEL
>>>>  	bool "Provide Security Label support for NFSv4 client"
>>>> -	depends on NFS_V4 && SECURITY
>>>> +	depends on NFS_V4_2 && SECURITY
>>>>  	help
>>>>  
>>>>  	Say Y here if you want enable fine-grained security label attribute
>>>> diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
>>>> index 5088b57..4058ec8 100644
>>>> --- a/fs/nfs/callback.c
>>>> +++ b/fs/nfs/callback.c
>>>> @@ -281,6 +281,9 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct n
>>>>  		case 1:
>>>>  			ret = nfs41_callback_up_net(serv, net);
>>>>  			break;
>>>> +		case 2:
>>>> +			ret = nfs41_callback_up_net(serv, net);
>>>> +			break;
>>>>  		default:
>>>>  			printk(KERN_ERR "NFS: unknown callback version: %d\n",
>>>>  					minorversion);
>>>> diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
>>>> index 2e9779b..2987fd6 100644
>>>> --- a/fs/nfs/nfs4client.c
>>>> +++ b/fs/nfs/nfs4client.c
>>>> @@ -66,6 +66,11 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
>>>>  	if (err)
>>>>  		goto error;
>>>>  
>>>> +	if (cl_init->minorversion > NFS4_MAX_MINOR_VERSION) {
>>>> +		err = -EINVAL;
>>>> +		goto error;
>>>> +	}
>>>
>>> Why wasn't this check needed before?
>> It was not needed because the checks in nfs_parse_version_string caught
>> the mismatch minor version... but since minor version 2 is no longer
>> a mismatch and those checks in nfs_parse_version_string are not
>> covered by an ifdef this check is now needed... 
> 
> NFSv4.1 could be configured out too.  How did it manage to return an
> error for minorversion == 1 in the !CONFIG_NFS_V4_1 case before?
Never tested?? I can't say... but this was the very first oops when
I enabled the 4.2 parsing... 

> 
>>>> +		
>>>>  	spin_lock_init(&clp->cl_lock);
>>>>  	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
>>>>  	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
>>>> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
>>>> index 40c1d1f..08fc8e2 100644
>>>> --- a/fs/nfs/nfs4proc.c
>>>> +++ b/fs/nfs/nfs4proc.c
>>>> @@ -7136,6 +7136,9 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
>>>>  #if defined(CONFIG_NFS_V4_1)
>>>>  	[1] = &nfs_v4_1_minor_ops,
>>>>  #endif
>>>> +#if defined(CONFIG_NFS_V4_2)
>>>> +	[2] = &nfs_v4_1_minor_ops,
>>>
>>> But then nfs_v4_minor_ops[2]->minor_version = 1.
>>>
>>> I think you want to create another structure--just define an
>>> nfs_v4_2_minor_ops field that's the same as nfs_v4_1_minor_ops except
>>> for the minor_version field.
>> That's how I started out: 
>>
>> #if defined(CONFIG_NFS_V4_2)
>> static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
>>     .minor_version = 2,
>>     .call_sync = nfs4_call_sync_sequence,
>>     .match_stateid = nfs41_match_stateid,
>>     .find_root_sec = nfs41_find_root_sec,
>>     .reboot_recovery_ops = &nfs41_reboot_recovery_ops,
>>     .nograce_recovery_ops = &nfs41_nograce_recovery_ops,
>>     .state_renewal_ops = &nfs41_state_renewal_ops,
>> };
>> #endif
>>
>> but it just seem like such a big waste of space...
> 
> Correctness first....
Fine... new version on the way...

steved.
> 
> --b.
> 
>> I could switch back... 
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diff mbox

Patch

diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 3861a1f..247db6d 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -104,6 +104,15 @@  config NFS_V4_1
 
 	  If unsure, say N.
 
+config NFS_V4_2
+	bool "NFS client support for NFSv4.2"
+	depends on NFS_V4_1
+	help
+	  This option enables support for minor version 1 of the NFSv4 protocol
+	  (RFC 5661) in the kernel's NFS client.
+
+	  If unsure, say N.
+
 config PNFS_FILE_LAYOUT
 	tristate
 	depends on NFS_V4_1
@@ -133,7 +142,7 @@  config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
 
 config NFS_V4_SECURITY_LABEL
 	bool "Provide Security Label support for NFSv4 client"
-	depends on NFS_V4 && SECURITY
+	depends on NFS_V4_2 && SECURITY
 	help
 
 	Say Y here if you want enable fine-grained security label attribute
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 5088b57..4058ec8 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -281,6 +281,9 @@  static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, struct n
 		case 1:
 			ret = nfs41_callback_up_net(serv, net);
 			break;
+		case 2:
+			ret = nfs41_callback_up_net(serv, net);
+			break;
 		default:
 			printk(KERN_ERR "NFS: unknown callback version: %d\n",
 					minorversion);
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 2e9779b..2987fd6 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -66,6 +66,11 @@  struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
 	if (err)
 		goto error;
 
+	if (cl_init->minorversion > NFS4_MAX_MINOR_VERSION) {
+		err = -EINVAL;
+		goto error;
+	}
+		
 	spin_lock_init(&clp->cl_lock);
 	INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
 	rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 40c1d1f..08fc8e2 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7136,6 +7136,9 @@  const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
 #if defined(CONFIG_NFS_V4_1)
 	[1] = &nfs_v4_1_minor_ops,
 #endif
+#if defined(CONFIG_NFS_V4_2)
+	[2] = &nfs_v4_1_minor_ops,
+#endif
 };
 
 const struct inode_operations nfs4_dir_inode_operations = {
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 4e78f93..d35582c 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -269,7 +269,7 @@  static match_table_t nfs_local_lock_tokens = {
 
 enum {
 	Opt_vers_2, Opt_vers_3, Opt_vers_4, Opt_vers_4_0,
-	Opt_vers_4_1,
+	Opt_vers_4_1, Opt_vers_4_2,
 
 	Opt_vers_err
 };
@@ -280,6 +280,7 @@  static match_table_t nfs_vers_tokens = {
 	{ Opt_vers_4, "4" },
 	{ Opt_vers_4_0, "4.0" },
 	{ Opt_vers_4_1, "4.1" },
+	{ Opt_vers_4_2, "4.2" },
 
 	{ Opt_vers_err, NULL }
 };
@@ -1143,6 +1144,10 @@  static int nfs_parse_version_string(char *string,
 		mnt->version = 4;
 		mnt->minorversion = 1;
 		break;
+	case Opt_vers_4_2:
+		mnt->version = 4;
+		mnt->minorversion = 2;
+		break;
 	default:
 		return 0;
 	}
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index aab8bd8..e9c040a 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -394,11 +394,15 @@  enum lock_type4 {
 #define NFS4_VERSION 4
 #define NFS4_MINOR_VERSION 0
 
+#if defined(CONFIG_NFS_V4_2)
+#define NFS4_MAX_MINOR_VERSION 2
+#else
 #if defined(CONFIG_NFS_V4_1)
 #define NFS4_MAX_MINOR_VERSION 1
 #else
 #define NFS4_MAX_MINOR_VERSION 0
 #endif /* CONFIG_NFS_V4_1 */
+#endif /* CONFIG_NFS_V4_2 */
 
 #define NFS4_DEBUG 1