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NFSD: Update the NFSv3 COMMIT3res encoder to use struct xdr_stream 

As an additional clean up, encode_wcc_data() is removed because it
is now no longer used.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2020-10-22 15:35:46 -04:00
parent ded04a587f
commit 5ef2826c76
1 changed files with 15 additions and 39 deletions
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54
fs/nfsd/nfs3xdr.c
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@ -432,14 +432,6 @@ encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
return p;
}
static __be32 *
encode_saved_post_attr(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
{
/* Attributes to follow */
*p++ = xdr_one;
return encode_fattr3(rqstp, p, fhp, &fhp->fh_post_attr);
}
static bool
svcxdr_encode_wcc_attr(struct xdr_stream *xdr, const struct svc_fh *fhp)
{
@ -562,30 +554,6 @@ neither:
return true;
}
/*
* Enocde weak cache consistency data
*/
static __be32 *
encode_wcc_data(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp)
{
struct dentry *dentry = fhp->fh_dentry;
if (dentry && d_really_is_positive(dentry) && fhp->fh_post_saved) {
if (fhp->fh_pre_saved) {
*p++ = xdr_one;
p = xdr_encode_hyper(p, (u64) fhp->fh_pre_size);
p = encode_time3(p, &fhp->fh_pre_mtime);
p = encode_time3(p, &fhp->fh_pre_ctime);
} else {
*p++ = xdr_zero;
}
return encode_saved_post_attr(rqstp, p, fhp);
}
/* no pre- or post-attrs */
*p++ = xdr_zero;
return encode_post_op_attr(rqstp, p, fhp);
}
static bool fs_supports_change_attribute(struct super_block *sb)
{
return sb->s_flags & SB_I_VERSION || sb->s_export_op->fetch_iversion;
@ -1548,16 +1516,24 @@ nfs3svc_encode_pathconfres(struct svc_rqst *rqstp, __be32 *p)
int
nfs3svc_encode_commitres(struct svc_rqst *rqstp, __be32 *p)
{
struct xdr_stream *xdr = &rqstp->rq_res_stream;
struct nfsd3_commitres *resp = rqstp->rq_resp;
*p++ = resp->status;
p = encode_wcc_data(rqstp, p, &resp->fh);
/* Write verifier */
if (resp->status == 0) {
*p++ = resp->verf[0];
*p++ = resp->verf[1];
if (!svcxdr_encode_nfsstat3(xdr, resp->status))
return 0;
switch (resp->status) {
case nfs_ok:
if (!svcxdr_encode_wcc_data(rqstp, xdr, &resp->fh))
return 0;
if (!svcxdr_encode_writeverf3(xdr, resp->verf))
return 0;
break;
default:
if (!svcxdr_encode_wcc_data(rqstp, xdr, &resp->fh))
return 0;
}
return xdr_ressize_check(rqstp, p);
return 1;
}
/*