NFSv4: Fix the readdir reply buffer alignment

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 5eb92f1..bec171a 100644 (file)
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1168,12 +1168,10 @@ static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
 
 static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
 {
-       struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
        uint32_t attrs[2] = {
                FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
                FATTR4_WORD1_MOUNTED_ON_FILEID,
        };
-       int replen;
        __be32 *p;
 
        RESERVE_SPACE(12+NFS4_VERIFIER_SIZE+20);
@@ -1198,17 +1196,6 @@ static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
                        attrs[0] & readdir->bitmask[0],
                        attrs[1] & readdir->bitmask[1]);
 
-       /* set up reply kvec
-        *    toplevel_status + taglen + rescount + OP_PUTFH + status
-        *      + OP_READDIR + status + verifer(2)  = 9
-        */
-       replen = (RPC_REPHDRSIZE + auth->au_rslack + 9) << 2;
-       xdr_inline_pages(&req->rq_rcv_buf, replen, readdir->pages,
-                        readdir->pgbase, readdir->count);
-       dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
-                       __FUNCTION__, replen, readdir->pages,
-                       readdir->pgbase, readdir->count);
-
        return 0;
 }
 
@@ -1815,6 +1802,8 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
        struct compound_hdr hdr = {
                .nops = 2,
        };
+       struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
+       int replen;
        int status;
 
        xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@@ -1823,6 +1812,18 @@ static int nfs4_xdr_enc_readdir(struct rpc_rqst *req, __be32 *p, const struct nf
        if(status)
                goto out;
        status = encode_readdir(&xdr, args, req);
+
+       /* 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,
+                        args->pgbase, args->count);
+       dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
+                       __FUNCTION__, replen, args->pages,
+                       args->pgbase, args->count);
+
 out:
        return status;
 }