diff options
| -rw-r--r-- | fs/lockd/mon.c | 68 |
1 files changed, 25 insertions, 43 deletions
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index e0c918949644..d812818d0258 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -401,26 +401,22 @@ void nsm_release(struct nsm_handle *nsm) * Status Monitor wire protocol. */ -static int encode_nsm_string(struct xdr_stream *xdr, const char *string) +static void encode_nsm_string(struct xdr_stream *xdr, const char *string) { const u32 len = strlen(string); __be32 *p; - if (unlikely(len > SM_MAXSTRLEN)) - return -EIO; - p = xdr_reserve_space(xdr, sizeof(u32) + len); - if (unlikely(p == NULL)) - return -EIO; + BUG_ON(len > SM_MAXSTRLEN); + p = xdr_reserve_space(xdr, 4 + len); xdr_encode_opaque(p, string, len); - return 0; } /* * "mon_name" specifies the host to be monitored. */ -static int encode_mon_name(struct xdr_stream *xdr, const struct nsm_args *argp) +static void encode_mon_name(struct xdr_stream *xdr, const struct nsm_args *argp) { - return encode_nsm_string(xdr, argp->mon_name); + encode_nsm_string(xdr, argp->mon_name); } /* @@ -429,35 +425,25 @@ static int encode_mon_name(struct xdr_stream *xdr, const struct nsm_args *argp) * (via the NLMPROC_SM_NOTIFY call) that the state of host "mon_name" * has changed. */ -static int encode_my_id(struct xdr_stream *xdr, const struct nsm_args *argp) +static void encode_my_id(struct xdr_stream *xdr, const struct nsm_args *argp) { - int status; __be32 *p; - status = encode_nsm_string(xdr, utsname()->nodename); - if (unlikely(status != 0)) - return status; - p = xdr_reserve_space(xdr, 3 * sizeof(u32)); - if (unlikely(p == NULL)) - return -EIO; - *p++ = htonl(argp->prog); - *p++ = htonl(argp->vers); - *p++ = htonl(argp->proc); - return 0; + encode_nsm_string(xdr, utsname()->nodename); + p = xdr_reserve_space(xdr, 4 + 4 + 4); + *p++ = cpu_to_be32(argp->prog); + *p++ = cpu_to_be32(argp->vers); + *p = cpu_to_be32(argp->proc); } /* * The "mon_id" argument specifies the non-private arguments * of an NSMPROC_MON or NSMPROC_UNMON call. */ -static int encode_mon_id(struct xdr_stream *xdr, const struct nsm_args *argp) +static void encode_mon_id(struct xdr_stream *xdr, const struct nsm_args *argp) { - int status; - - status = encode_mon_name(xdr, argp); - if (unlikely(status != 0)) - return status; - return encode_my_id(xdr, argp); + encode_mon_name(xdr, argp); + encode_my_id(xdr, argp); } /* @@ -465,28 +451,23 @@ static int encode_mon_id(struct xdr_stream *xdr, const struct nsm_args *argp) * by the NSMPROC_MON call. This information will be supplied in the * NLMPROC_SM_NOTIFY call. */ -static int encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp) +static void encode_priv(struct xdr_stream *xdr, const struct nsm_args *argp) { __be32 *p; p = xdr_reserve_space(xdr, SM_PRIV_SIZE); - if (unlikely(p == NULL)) - return -EIO; xdr_encode_opaque_fixed(p, argp->priv->data, SM_PRIV_SIZE); - return 0; } static int xdr_enc_mon(struct rpc_rqst *req, __be32 *p, const struct nsm_args *argp) { struct xdr_stream xdr; - int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - status = encode_mon_id(&xdr, argp); - if (unlikely(status)) - return status; - return encode_priv(&xdr, argp); + encode_mon_id(&xdr, argp); + encode_priv(&xdr, argp); + return 0; } static int xdr_enc_unmon(struct rpc_rqst *req, __be32 *p, @@ -495,7 +476,8 @@ static int xdr_enc_unmon(struct rpc_rqst *req, __be32 *p, struct xdr_stream xdr; xdr_init_encode(&xdr, &req->rq_snd_buf, p); - return encode_mon_id(&xdr, argp); + encode_mon_id(&xdr, argp); + return 0; } static int xdr_dec_stat_res(struct rpc_rqst *rqstp, __be32 *p, @@ -504,11 +486,11 @@ static int xdr_dec_stat_res(struct rpc_rqst *rqstp, __be32 *p, struct xdr_stream xdr; xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - p = xdr_inline_decode(&xdr, 2 * sizeof(u32)); + p = xdr_inline_decode(&xdr, 4 + 4); if (unlikely(p == NULL)) return -EIO; - resp->status = ntohl(*p++); - resp->state = ntohl(*p); + resp->status = be32_to_cpup(p++); + resp->state = be32_to_cpup(p); dprintk("lockd: xdr_dec_stat_res status %d state %d\n", resp->status, resp->state); @@ -521,10 +503,10 @@ static int xdr_dec_stat(struct rpc_rqst *rqstp, __be32 *p, struct xdr_stream xdr; xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - p = xdr_inline_decode(&xdr, sizeof(u32)); + p = xdr_inline_decode(&xdr, 4); if (unlikely(p == NULL)) return -EIO; - resp->state = ntohl(*p); + resp->state = be32_to_cpup(p); dprintk("lockd: xdr_dec_stat state %d\n", resp->state); return 0; |