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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

fs/nfs/callback_xdr.c

+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