From bf2695516db982e90a22fc94f93491b481796bb1 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 14 Dec 2010 14:59:29 +0000 Subject: SUNRPC: New xdr_streams XDR decoder API Now that all client-side XDR decoder routines use xdr_streams, there should be no need to support the legacy calling sequence [rpc_rqst *, __be32 *, RPC res *] anywhere. We can construct an xdr_stream in the generic RPC code, instead of in each decoder function. This is a refactoring change. It should not cause different behavior. Signed-off-by: Chuck Lever Tested-by: J. Bruce Fields Signed-off-by: Trond Myklebust --- fs/lockd/clnt4xdr.c | 20 +++++++++----------- fs/lockd/clntxdr.c | 20 +++++++++----------- fs/lockd/mon.c | 30 +++++++++++++++--------------- 3 files changed, 33 insertions(+), 37 deletions(-) (limited to 'fs/lockd') diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c index 974f1d9cd323..f848b52c67b1 100644 --- a/fs/lockd/clnt4xdr.c +++ b/fs/lockd/clnt4xdr.c @@ -529,17 +529,16 @@ out: return error; } -static int nlm4_xdr_dec_testres(struct rpc_rqst *req, __be32 *p, +static int nlm4_xdr_dec_testres(struct rpc_rqst *req, + struct xdr_stream *xdr, struct nlm_res *result) { - struct xdr_stream xdr; int error; - xdr_init_decode(&xdr, &req->rq_rcv_buf, p); - error = decode_cookie(&xdr, &result->cookie); + error = decode_cookie(xdr, &result->cookie); if (unlikely(error)) goto out; - error = decode_nlm4_testrply(&xdr, result); + error = decode_nlm4_testrply(xdr, result); out: return error; } @@ -550,17 +549,16 @@ out: * nlm4_stat stat; * }; */ -static int nlm4_xdr_dec_res(struct rpc_rqst *req, __be32 *p, +static int nlm4_xdr_dec_res(struct rpc_rqst *req, + struct xdr_stream *xdr, struct nlm_res *result) { - struct xdr_stream xdr; int error; - xdr_init_decode(&xdr, &req->rq_rcv_buf, p); - error = decode_cookie(&xdr, &result->cookie); + error = decode_cookie(xdr, &result->cookie); if (unlikely(error)) goto out; - error = decode_nlm4_stat(&xdr, &result->status); + error = decode_nlm4_stat(xdr, &result->status); out: return error; } @@ -575,7 +573,7 @@ out: [NLMPROC_##proc] = { \ .p_proc = NLMPROC_##proc, \ .p_encode = (kxdreproc_t)nlm4_xdr_enc_##argtype, \ - .p_decode = (kxdrproc_t)nlm4_xdr_dec_##restype, \ + .p_decode = (kxdrdproc_t)nlm4_xdr_dec_##restype, \ .p_arglen = NLM4_##argtype##_sz, \ .p_replen = NLM4_##restype##_sz, \ .p_statidx = NLMPROC_##proc, \ diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c index c6fda8fb1c5b..180ac34feb9a 100644 --- a/fs/lockd/clntxdr.c +++ b/fs/lockd/clntxdr.c @@ -527,17 +527,16 @@ out: return error; } -static int nlm_xdr_dec_testres(struct rpc_rqst *req, __be32 *p, +static int nlm_xdr_dec_testres(struct rpc_rqst *req, + struct xdr_stream *xdr, struct nlm_res *result) { - struct xdr_stream xdr; int error; - xdr_init_decode(&xdr, &req->rq_rcv_buf, p); - error = decode_cookie(&xdr, &result->cookie); + error = decode_cookie(xdr, &result->cookie); if (unlikely(error)) goto out; - error = decode_nlm_testrply(&xdr, result); + error = decode_nlm_testrply(xdr, result); out: return error; } @@ -548,17 +547,16 @@ out: * nlm_stat stat; * }; */ -static int nlm_xdr_dec_res(struct rpc_rqst *req, __be32 *p, +static int nlm_xdr_dec_res(struct rpc_rqst *req, + struct xdr_stream *xdr, struct nlm_res *result) { - struct xdr_stream xdr; int error; - xdr_init_decode(&xdr, &req->rq_rcv_buf, p); - error = decode_cookie(&xdr, &result->cookie); + error = decode_cookie(xdr, &result->cookie); if (unlikely(error)) goto out; - error = decode_nlm_stat(&xdr, &result->status); + error = decode_nlm_stat(xdr, &result->status); out: return error; } @@ -573,7 +571,7 @@ out: [NLMPROC_##proc] = { \ .p_proc = NLMPROC_##proc, \ .p_encode = (kxdreproc_t)nlm_xdr_enc_##argtype, \ - .p_decode = (kxdrproc_t)nlm_xdr_dec_##restype, \ + .p_decode = (kxdrdproc_t)nlm_xdr_dec_##restype, \ .p_arglen = NLM_##argtype##_sz, \ .p_replen = NLM_##restype##_sz, \ .p_statidx = NLMPROC_##proc, \ diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index baa77bc9d825..23d7451b2938 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -472,35 +472,35 @@ static void nsm_xdr_enc_unmon(struct rpc_rqst *req, struct xdr_stream *xdr, encode_mon_id(xdr, argp); } -static int xdr_dec_stat_res(struct rpc_rqst *rqstp, __be32 *p, - struct nsm_res *resp) +static int nsm_xdr_dec_stat_res(struct rpc_rqst *rqstp, + struct xdr_stream *xdr, + struct nsm_res *resp) { - struct xdr_stream xdr; + __be32 *p; - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - p = xdr_inline_decode(&xdr, 4 + 4); + p = xdr_inline_decode(xdr, 4 + 4); if (unlikely(p == NULL)) return -EIO; 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); + dprintk("lockd: %s status %d state %d\n", + __func__, resp->status, resp->state); return 0; } -static int xdr_dec_stat(struct rpc_rqst *rqstp, __be32 *p, - struct nsm_res *resp) +static int nsm_xdr_dec_stat(struct rpc_rqst *rqstp, + struct xdr_stream *xdr, + struct nsm_res *resp) { - struct xdr_stream xdr; + __be32 *p; - xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); - p = xdr_inline_decode(&xdr, 4); + p = xdr_inline_decode(xdr, 4); if (unlikely(p == NULL)) return -EIO; resp->state = be32_to_cpup(p); - dprintk("lockd: xdr_dec_stat state %d\n", resp->state); + dprintk("lockd: %s state %d\n", __func__, resp->state); return 0; } @@ -517,7 +517,7 @@ static struct rpc_procinfo nsm_procedures[] = { [NSMPROC_MON] = { .p_proc = NSMPROC_MON, .p_encode = (kxdreproc_t)nsm_xdr_enc_mon, - .p_decode = (kxdrproc_t)xdr_dec_stat_res, + .p_decode = (kxdrdproc_t)nsm_xdr_dec_stat_res, .p_arglen = SM_mon_sz, .p_replen = SM_monres_sz, .p_statidx = NSMPROC_MON, @@ -526,7 +526,7 @@ static struct rpc_procinfo nsm_procedures[] = { [NSMPROC_UNMON] = { .p_proc = NSMPROC_UNMON, .p_encode = (kxdreproc_t)nsm_xdr_enc_unmon, - .p_decode = (kxdrproc_t)xdr_dec_stat, + .p_decode = (kxdrdproc_t)nsm_xdr_dec_stat, .p_arglen = SM_mon_id_sz, .p_replen = SM_unmonres_sz, .p_statidx = NSMPROC_UNMON, -- cgit v1.2.3-59-g8ed1b