diff mbox

[19/19] NFSDv4.2: Added NFS v4.2 support to the NFS server

Message ID 1364939160-20874-20-git-send-email-SteveD@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Steve Dickson April 2, 2013, 9:46 p.m. UTC
From: Steve Dickson <steved@redhat.com>

This enable NFSv4.2 support for the server. To enable this
code do the following:
  echo "+4.2" >/proc/fs/nfsd/versions

after the nfsd kernel module is loaded.

Signed-off-by: Steve Dickson <steved@redhat.com>
---
 fs/nfsd/nfs4xdr.c | 1 +
 fs/nfsd/nfsd.h    | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

Comments

Bruce Fields April 10, 2013, 3:25 p.m. UTC | #1
On Tue, Apr 02, 2013 at 05:46:00PM -0400, Steve Dickson wrote:
> From: Steve Dickson <steved@redhat.com>
> 
> This enable NFSv4.2 support for the server. To enable this
> code do the following:
>   echo "+4.2" >/proc/fs/nfsd/versions

The patches are ordered strangely: labeled nFS support depends on 4.2
support, so we should be adding 4.2 support first, then labeled NFS
support on top of that.

Note a 4.1 client shouldn't see the server return the new attribute as
supported unless it's using 4.2, and attempts to set it should error
out unless it's using 4.2.

--b.

> 
> after the nfsd kernel module is loaded.
> 
> Signed-off-by: Steve Dickson <steved@redhat.com>
> ---
>  fs/nfsd/nfs4xdr.c | 1 +
>  fs/nfsd/nfsd.h    | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
> index 818c1ca..d40b6ac 100644
> --- a/fs/nfsd/nfs4xdr.c
> +++ b/fs/nfsd/nfs4xdr.c
> @@ -1628,6 +1628,7 @@ struct nfsd4_minorversion_ops {
>  static struct nfsd4_minorversion_ops nfsd4_minorversion[] = {
>  	[0] = { nfsd4_dec_ops, ARRAY_SIZE(nfsd4_dec_ops) },
>  	[1] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
> +	[2] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
>  };
>  
>  static __be32
> diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
> index 3090561..ac518e4 100644
> --- a/fs/nfsd/nfsd.h
> +++ b/fs/nfsd/nfsd.h
> @@ -24,7 +24,7 @@
>  /*
>   * nfsd version
>   */
> -#define NFSD_SUPPORTED_MINOR_VERSION	1
> +#define NFSD_SUPPORTED_MINOR_VERSION	2
>  /*
>   * Maximum blocksizes supported by daemon under various circumstances.
>   */
> -- 
> 1.8.1.4
> 
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Steve Dickson April 10, 2013, 3:58 p.m. UTC | #2
On 10/04/13 11:25, J. Bruce Fields wrote:
> On Tue, Apr 02, 2013 at 05:46:00PM -0400, Steve Dickson wrote:
>> From: Steve Dickson <steved@redhat.com>
>>
>> This enable NFSv4.2 support for the server. To enable this
>> code do the following:
>>   echo "+4.2" >/proc/fs/nfsd/versions
> 
> The patches are ordered strangely: labeled nFS support depends on 4.2
> support, so we should be adding 4.2 support first, then labeled NFS
> support on top of that.
Seriously that actually matter? So you want just commit the 4.2 and not
not the label NFS patches? 
 
> 
> Note a 4.1 client shouldn't see the server return the new attribute as
> supported unless it's using 4.2, and attempts to set it should error
> out unless it's using 4.2.
How is that handled with 4.0 vers 4.1? Just looking for a point to the code... 

steved.

> 
> --b.
> 
>>
>> after the nfsd kernel module is loaded.
>>
>> Signed-off-by: Steve Dickson <steved@redhat.com>
>> ---
>>  fs/nfsd/nfs4xdr.c | 1 +
>>  fs/nfsd/nfsd.h    | 2 +-
>>  2 files changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
>> index 818c1ca..d40b6ac 100644
>> --- a/fs/nfsd/nfs4xdr.c
>> +++ b/fs/nfsd/nfs4xdr.c
>> @@ -1628,6 +1628,7 @@ struct nfsd4_minorversion_ops {
>>  static struct nfsd4_minorversion_ops nfsd4_minorversion[] = {
>>  	[0] = { nfsd4_dec_ops, ARRAY_SIZE(nfsd4_dec_ops) },
>>  	[1] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
>> +	[2] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
>>  };
>>  
>>  static __be32
>> diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
>> index 3090561..ac518e4 100644
>> --- a/fs/nfsd/nfsd.h
>> +++ b/fs/nfsd/nfsd.h
>> @@ -24,7 +24,7 @@
>>  /*
>>   * nfsd version
>>   */
>> -#define NFSD_SUPPORTED_MINOR_VERSION	1
>> +#define NFSD_SUPPORTED_MINOR_VERSION	2
>>  /*
>>   * Maximum blocksizes supported by daemon under various circumstances.
>>   */
>> -- 
>> 1.8.1.4
>>
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Bruce Fields April 10, 2013, 8:12 p.m. UTC | #3
On Wed, Apr 10, 2013 at 11:58:27AM -0400, Steve Dickson wrote:
> 
> 
> On 10/04/13 11:25, J. Bruce Fields wrote:
> > On Tue, Apr 02, 2013 at 05:46:00PM -0400, Steve Dickson wrote:
> >> From: Steve Dickson <steved@redhat.com>
> >>
> >> This enable NFSv4.2 support for the server. To enable this
> >> code do the following:
> >>   echo "+4.2" >/proc/fs/nfsd/versions
> > 
> > The patches are ordered strangely: labeled nFS support depends on 4.2
> > support, so we should be adding 4.2 support first, then labeled NFS
> > support on top of that.
> Seriously that actually matter?  So you want just commit the 4.2 and not
> not the label NFS patches? 

Yes, please, let's get that fixed on both the client and server, even
though, yes I expect we'll probably commit them all at once.

> > Note a 4.1 client shouldn't see the server return the new attribute as
> > supported unless it's using 4.2, and attempts to set it should error
> > out unless it's using 4.2.
> How is that handled with 4.0 vers 4.1? Just looking for a point to the code... 
I don't actually remember.  Grepping around....  Looks like it's mainly
the nfsd_suppattrs{0,1,2} functions in fs/nfsd/nfsd.h.

--b.
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Steve Dickson April 11, 2013, 4:58 p.m. UTC | #4
On 10/04/13 16:12, J. Bruce Fields wrote:
> On Wed, Apr 10, 2013 at 11:58:27AM -0400, Steve Dickson wrote:
>>
>>
>> On 10/04/13 11:25, J. Bruce Fields wrote:
>>> On Tue, Apr 02, 2013 at 05:46:00PM -0400, Steve Dickson wrote:
>>>> From: Steve Dickson <steved@redhat.com>
>>>>
>>>> This enable NFSv4.2 support for the server. To enable this
>>>> code do the following:
>>>>   echo "+4.2" >/proc/fs/nfsd/versions
>>>
>>> The patches are ordered strangely: labeled nFS support depends on 4.2
>>> support, so we should be adding 4.2 support first, then labeled NFS
>>> support on top of that.
>> Seriously that actually matter?  So you want just commit the 4.2 and not
>> not the label NFS patches? 
> 
> Yes, please, let's get that fixed on both the client and server, even
> though, yes I expect we'll probably commit them all at once.
> 
>>> Note a 4.1 client shouldn't see the server return the new attribute as
>>> supported unless it's using 4.2, and attempts to set it should error
>>> out unless it's using 4.2.
>> How is that handled with 4.0 vers 4.1? Just looking for a point to the code... 
> I don't actually remember.  Grepping around....  Looks like it's mainly
> the nfsd_suppattrs{0,1,2} functions in fs/nfsd/nfsd.h.
Thanks!

steved.

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diff mbox

Patch

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 818c1ca..d40b6ac 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1628,6 +1628,7 @@  struct nfsd4_minorversion_ops {
 static struct nfsd4_minorversion_ops nfsd4_minorversion[] = {
 	[0] = { nfsd4_dec_ops, ARRAY_SIZE(nfsd4_dec_ops) },
 	[1] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
+	[2] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
 };
 
 static __be32
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 3090561..ac518e4 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -24,7 +24,7 @@ 
 /*
  * nfsd version
  */
-#define NFSD_SUPPORTED_MINOR_VERSION	1
+#define NFSD_SUPPORTED_MINOR_VERSION	2
 /*
  * Maximum blocksizes supported by daemon under various circumstances.
  */