Commit c79d56d2 authored by Anna Schumaker's avatar Anna Schumaker Committed by Trond Myklebust
Browse files

NFS: Clean up decode_layoutrecall_args()



Additionally, this change lets us cut out the goto by returning errors
immediately.

Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
parent 135a4ea0
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+11 −27
Original line number Diff line number Diff line
@@ -227,10 +227,8 @@ static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
	uint32_t iomode;

	p = read_buf(xdr, 4 * sizeof(uint32_t));
	if (unlikely(p == NULL)) {
		status = htonl(NFS4ERR_BADXDR);
		goto out;
	}
	if (unlikely(p == NULL))
		return htonl(NFS4ERR_BADXDR);

	args->cbl_layout_type = ntohl(*p++);
	/* Depite the spec's xdr, iomode really belongs in the FILE switch,
@@ -244,37 +242,23 @@ static __be32 decode_layoutrecall_args(struct svc_rqst *rqstp,
		args->cbl_range.iomode = iomode;
		status = decode_fh(xdr, &args->cbl_fh);
		if (unlikely(status != 0))
			goto out;
			return status;

		p = read_buf(xdr, 2 * sizeof(uint64_t));
		if (unlikely(p == NULL)) {
			status = htonl(NFS4ERR_BADXDR);
			goto out;
		}
		if (unlikely(p == NULL))
			return htonl(NFS4ERR_BADXDR);
		p = xdr_decode_hyper(p, &args->cbl_range.offset);
		p = xdr_decode_hyper(p, &args->cbl_range.length);
		status = decode_layout_stateid(xdr, &args->cbl_stateid);
		if (unlikely(status != 0))
			goto out;
		return decode_layout_stateid(xdr, &args->cbl_stateid);
	} else if (args->cbl_recall_type == RETURN_FSID) {
		p = read_buf(xdr, 2 * sizeof(uint64_t));
		if (unlikely(p == NULL)) {
			status = htonl(NFS4ERR_BADXDR);
			goto out;
		}
		if (unlikely(p == NULL))
			return htonl(NFS4ERR_BADXDR);
		p = xdr_decode_hyper(p, &args->cbl_fsid.major);
		p = xdr_decode_hyper(p, &args->cbl_fsid.minor);
	} else if (args->cbl_recall_type != RETURN_ALL) {
		status = htonl(NFS4ERR_BADXDR);
		goto out;
	}
	dprintk("%s: ltype 0x%x iomode %d changed %d recall_type %d\n",
		__func__,
		args->cbl_layout_type, iomode,
		args->cbl_layoutchanged, args->cbl_recall_type);
out:
	dprintk("%s: exit with status = %d\n", __func__, ntohl(status));
	return status;
	} else if (args->cbl_recall_type != RETURN_ALL)
		return htonl(NFS4ERR_BADXDR);
	return 0;
}

static