As Trond suggested, rather than passing a constant to xdr_inline_pages,
keep a running count of the expected reply bytes. In preparation for
nfs41, where additional op sequence are expteced when talking to nfs41
servers.
[NFS: cb_compoundhdr.replen is in words not bytes]
Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
---
fs/nfs/nfs4xdr.c | 44 ++++++--------------------------------------
1 files changed, 6 insertions(+), 38 deletions(-)
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e6f2d84..9cec237 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1757,20 +1757,13 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct n
struct compound_hdr hdr = {
.minorversion = clp->cl_minorversion,
};
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
- unsigned int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, req, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_readlink(&xdr, args, req, &hdr);
- /* set up reply kvec
- * toplevel_status + taglen + rescount + OP_PUTFH + status
- * + OP_READLINK + status + string length = 8
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
args->pgbase, args->pglen);
encode_nops(&hdr);
return 0;
@@ -1787,23 +1780,16 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
struct compound_hdr hdr = {
.minorversion = clp->cl_minorversion,
};
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
- int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, req, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_readdir(&xdr, args, req, &hdr);
- /* set up reply kvec
- * toplevel_status + taglen + rescount + OP_PUTFH + status
- * + OP_READDIR + status + verifer(2) = 9
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readdir_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, args->pages,
args->pgbase, args->count);
dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
- __func__, replen, args->pages,
+ __func__, hdr.replen << 2, args->pages,
args->pgbase, args->count);
encode_nops(&hdr);
return 0;
@@ -1814,26 +1800,19 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
*/
static int nfs4_xdr_enc_read(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct xdr_stream xdr;
struct nfs_client *clp =
(struct nfs_client *)req->rq_task->tk_client->cl_private;
struct compound_hdr hdr = {
.minorversion = clp->cl_minorversion,
};
- int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, req, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_read(&xdr, args, &hdr);
- /* set up reply kvec
- * toplevel status + taglen=0 + rescount + OP_PUTFH + status
- * + OP_READ + status + eof + datalen = 9
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_read_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
args->pages, args->pgbase, args->count);
req->rq_rcv_buf.flags |= XDRBUF_READ;
encode_nops(&hdr);
@@ -1869,22 +1848,18 @@ nfs4_xdr_enc_getacl(struct rpc_rqst *req, __be32 *p,
struct nfs_getaclargs *args)
{
struct xdr_stream xdr;
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct nfs_client *clp =
(struct nfs_client *)req->rq_task->tk_client->cl_private;
struct compound_hdr hdr = {
.minorversion = clp->cl_minorversion,
};
- int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, req, &hdr);
encode_putfh(&xdr, args->fh, &hdr);
encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
- /* set up reply buffer: */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2,
args->acl_pages, args->acl_pgbase, args->acl_len);
encode_nops(&hdr);
return 0;
@@ -2105,8 +2080,6 @@ static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs
struct compound_hdr hdr = {
.minorversion = clp->cl_minorversion,
};
- struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
- int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, req, &hdr);
@@ -2114,12 +2087,7 @@ static int nfs4_xdr_enc_fs_locations(struct rpc_rqst *req, __be32 *p, struct nfs
encode_lookup(&xdr, args->name, &hdr);
encode_fs_locations(&xdr, args->bitmask, &hdr);
- /* set up reply
- * toplevel_status + OP_PUTFH + status
- * + OP_LOOKUP + status + OP_GETATTR + status = 7
- */
- replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2;
- xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page,
+ xdr_inline_pages(&req->rq_rcv_buf, hdr.replen << 2, &args->page,
0, PAGE_SIZE);
encode_nops(&hdr);
return 0;
--
1.6.1.3
--
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