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nfsd41: Backchannel: cleanup nfs4.0 callback encode routines 

Mimic the client and prepare to share the back channel xdr with NFSv4.1.
Bump the number of operations in each encode routine, then backfill the
number of operations.

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>
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 04:20:50 +03:00 committed by J. Bruce Fields
parent 6ddbbbfe52
commit ef52bff840
1 changed files with 16 additions and 8 deletions
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24
fs/nfsd/nfs4callback.c
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@ -140,8 +140,9 @@ struct nfs4_cb_compound_hdr {
int status;
u32 ident;
u32 nops;
__be32 *nops_p;
u32 taglen;
char * tag;
char *tag;
};
static struct {
@ -201,7 +202,7 @@ nfs_cb_stat_to_errno(int stat)
* XDR encode
*/
static int
static void
encode_cb_compound_hdr(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr)
{
__be32 * p;
@ -210,12 +211,18 @@ encode_cb_compound_hdr(struct xdr_stream *xdr, struct nfs4_cb_compound_hdr *hdr)
WRITE32(0); /* tag length is always 0 */
WRITE32(NFS4_MINOR_VERSION);
WRITE32(hdr->ident);
hdr->nops_p = p;
WRITE32(hdr->nops);
return 0;
}
static int
encode_cb_recall(struct xdr_stream *xdr, struct nfs4_delegation *dp)
static void encode_cb_nops(struct nfs4_cb_compound_hdr *hdr)
{
*hdr->nops_p = htonl(hdr->nops);
}
static void
encode_cb_recall(struct xdr_stream *xdr, struct nfs4_delegation *dp,
struct nfs4_cb_compound_hdr *hdr)
{
__be32 *p;
int len = dp->dl_fh.fh_size;
@ -227,7 +234,7 @@ encode_cb_recall(struct xdr_stream *xdr, struct nfs4_delegation *dp)
WRITE32(0); /* truncate optimization not implemented */
WRITE32(len);
WRITEMEM(&dp->dl_fh.fh_base, len);
return 0;
hdr->nops++;
}
static int
@ -246,12 +253,13 @@ nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, __be32 *p, struct nfs4_delegation *
struct xdr_stream xdr;
struct nfs4_cb_compound_hdr hdr = {
.ident = args->dl_ident,
.nops = 1,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_cb_compound_hdr(&xdr, &hdr);
return (encode_cb_recall(&xdr, args));
encode_cb_recall(&xdr, args, &hdr);
encode_cb_nops(&hdr);
return 0;
}