Re: [PATCH 35/44] nfsd41: Backchannel: minorversion support for the back channel

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

On Tue, Jun 16, 2009 at 04:20:53AM +0300, Benny Halevy wrote:
> From: Andy Adamson <andros@netapp.com>
> 
> Prepare to share backchannel code with NFSv4.1.

Also applied.--b.

> 
> Signed-off-by: Andy Adamson <andros@netapp.com>
> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
> Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
> [nfsd41: use nfsd4_cb_sequence for callback minorversion]
> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
> ---
>  fs/nfsd/nfs4callback.c     |    3 ++-
>  fs/nfsd/nfs4state.c        |    1 +
>  include/linux/nfsd/state.h |    3 ++-
>  3 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
> index 353eb4a..3fd23f7 100644
> --- a/fs/nfsd/nfs4callback.c
> +++ b/fs/nfsd/nfs4callback.c
> @@ -141,6 +141,7 @@ struct nfs4_cb_compound_hdr {
>  	u32		ident;
>  	u32		nops;
>  	__be32		*nops_p;
> +	u32		minorversion;
>  	u32		taglen;
>  	char		*tag;
>  };
> @@ -209,7 +210,7 @@ encode_cb_compound_hdr(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr)
>  
>  	RESERVE_SPACE(16);
>  	WRITE32(0);            /* tag length is always 0 */
> -	WRITE32(NFS4_MINOR_VERSION);
> +	WRITE32(hdr->minorversion);
>  	WRITE32(hdr->ident);
>  	hdr->nops_p = p;
>  	WRITE32(hdr->nops);
> diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
> index 8ac5630..ce6631d 100644
> --- a/fs/nfsd/nfs4state.c
> +++ b/fs/nfsd/nfs4state.c
> @@ -983,6 +983,7 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se)
>  	if ( !(parse_ipv4(se->se_callback_addr_len, se->se_callback_addr_val,
>  	                 &cb->cb_addr, &cb->cb_port)))
>  		goto out_err;
> +	cb->cb_minorversion = 0;
>  	cb->cb_prog = se->se_callback_prog;
>  	cb->cb_ident = se->se_callback_ident;
>  	return;
> diff --git a/include/linux/nfsd/state.h b/include/linux/nfsd/state.h
> index 093f165..f02e53c 100644
> --- a/include/linux/nfsd/state.h
> +++ b/include/linux/nfsd/state.h
> @@ -85,7 +85,8 @@ struct nfs4_cb_conn {
>  	u32                     cb_addr;
>  	unsigned short          cb_port;
>  	u32                     cb_prog;
> -	u32                     cb_ident;
> +	u32			cb_minorversion;
> +	u32                     cb_ident;	/* minorversion 0 only */
>  	/* RPC client info */
>  	atomic_t		cb_set;     /* successful CB_NULL call */
>  	struct rpc_clnt *       cb_client;
> -- 
> 1.6.3
>