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Diffstat (limited to 'fs/nfs/nfs4proc.c')
-rw-r--r--fs/nfs/nfs4proc.c51
1 files changed, 39 insertions, 12 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5b3207f..4614111 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4047,6 +4047,32 @@ static void nfs4_init_boot_verifier(const struct nfs_client *clp,
memcpy(bootverf->data, verf, sizeof(bootverf->data));
}
+static unsigned int
+nfs4_init_nonuniform_client_string(const struct nfs_client *clp,
+ char *buf, size_t len)
+{
+ unsigned int result;
+
+ rcu_read_lock();
+ result = scnprintf(buf, len, "Linux NFSv4.0 %s/%s %s",
+ clp->cl_ipaddr,
+ rpc_peeraddr2str(clp->cl_rpcclient,
+ RPC_DISPLAY_ADDR),
+ rpc_peeraddr2str(clp->cl_rpcclient,
+ RPC_DISPLAY_PROTO));
+ rcu_read_unlock();
+ return result;
+}
+
+static unsigned int
+nfs4_init_uniform_client_string(const struct nfs_client *clp,
+ char *buf, size_t len)
+{
+ return scnprintf(buf, len, "Linux NFSv%u.%u %s",
+ clp->rpc_ops->version, clp->cl_minorversion,
+ clp->cl_rpcclient->cl_nodename);
+}
+
/**
* nfs4_proc_setclientid - Negotiate client ID
* @clp: state data structure
@@ -4077,15 +4103,18 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
/* nfs_client_id4 */
nfs4_init_boot_verifier(clp, &sc_verifier);
- rcu_read_lock();
- setclientid.sc_name_len = scnprintf(setclientid.sc_name,
- sizeof(setclientid.sc_name), "%s/%s %s",
- clp->cl_ipaddr,
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_ADDR),
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_PROTO));
+ if (test_bit(NFS_CS_MIGRATION, &clp->cl_flags))
+ setclientid.sc_name_len =
+ nfs4_init_uniform_client_string(clp,
+ setclientid.sc_name,
+ sizeof(setclientid.sc_name));
+ else
+ setclientid.sc_name_len =
+ nfs4_init_nonuniform_client_string(clp,
+ setclientid.sc_name,
+ sizeof(setclientid.sc_name));
/* cb_client4 */
+ rcu_read_lock();
setclientid.sc_netid_len = scnprintf(setclientid.sc_netid,
sizeof(setclientid.sc_netid),
rpc_peeraddr2str(clp->cl_rpcclient,
@@ -5307,10 +5336,8 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
};
nfs4_init_boot_verifier(clp, &verifier);
- args.id_len = scnprintf(args.id, sizeof(args.id),
- "%s/%s",
- clp->cl_ipaddr,
- clp->cl_rpcclient->cl_nodename);
+ args.id_len = nfs4_init_uniform_client_string(clp, args.id,
+ sizeof(args.id));
dprintk("NFS call exchange_id auth=%s, '%.*s'\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
args.id_len, args.id);