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NFSv4: Fix the nfsv4 readlink reply buffer alignment 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-07-19 10:03:38 -04:00
parent d6ac02dfaa
commit e3a535e173
1 changed files with 11 additions and 10 deletions
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21
fs/nfs/nfs4xdr.c
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@ -1201,21 +1201,11 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
unsigned int replen;
__be32 *p;
RESERVE_SPACE(4);
WRITE32(OP_READLINK);
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
* + OP_READLINK + status + string length = 8
*/
replen = (RPC_REPHDRSIZE + auth->au_rslack + 8) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, readlink->pages,
readlink->pgbase, readlink->pglen);
return 0;
}
@ -1781,6 +1771,8 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct n
struct compound_hdr hdr = {
.nops = 2,
};
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
unsigned int replen;
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@ -1789,6 +1781,15 @@ static int nfs4_xdr_enc_readlink(struct rpc_rqst *req, __be32 *p, const struct n
if(status)
goto out;
status = encode_readlink(&xdr, args, req);
/* 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,
args->pgbase, args->pglen);
out:
return status;
}