NFSD: Update the NFSv2 SETACL argument decoder to use struct xdr_stream

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index addb0d7..a568b84 100644 (file)
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -140,28 +140,23 @@ static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, __be32 *p)
 
 static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, __be32 *p)
 {
-       struct nfsd3_setaclargs *args = rqstp->rq_argp;
-       struct kvec *head = rqstp->rq_arg.head;
-       unsigned int base;
-       int n;
+       struct xdr_stream *xdr = &rqstp->rq_arg_stream;
+       struct nfsd3_setaclargs *argp = rqstp->rq_argp;
 
-       p = nfs3svc_decode_fh(p, &args->fh);
-       if (!p)
+       if (!svcxdr_decode_nfs_fh3(xdr, &argp->fh))
+               return 0;
+       if (xdr_stream_decode_u32(xdr, &argp->mask) < 0)
                return 0;
-       args->mask = ntohl(*p++);
-       if (args->mask & ~NFS_ACL_MASK ||
-           !xdr_argsize_check(rqstp, p))
+       if (argp->mask & ~NFS_ACL_MASK)
+               return 0;
+       if (!nfs_stream_decode_acl(xdr, NULL, (argp->mask & NFS_ACL) ?
+                                  &argp->acl_access : NULL))
+               return 0;
+       if (!nfs_stream_decode_acl(xdr, NULL, (argp->mask & NFS_DFACL) ?
+                                  &argp->acl_default : NULL))
                return 0;
 
-       base = (char *)p - (char *)head->iov_base;
-       n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
-                         (args->mask & NFS_ACL) ?
-                         &args->acl_access : NULL);
-       if (n > 0)
-               n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
-                                 (args->mask & NFS_DFACL) ?
-                                 &args->acl_default : NULL);
-       return (n > 0);
+       return 1;
 }
 
 /*