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nfsd41: Backchannel: minorversion support for the back channel 

Prepare to share backchannel code with NFSv4.1.

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>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Andy Adamson 2009-06-16 04:20:53 +03:00 committed by J. Bruce Fields
parent ef52bff840
commit ab52ae6db0
3 changed files with 5 additions and 2 deletions
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3
fs/nfsd/nfs4callback.c
View File

@ -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);

1
fs/nfsd/nfs4state.c
View File

@ -984,6 +984,7 @@ 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;

3
include/linux/nfsd/state.h
View File

@ -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;