SUNRPC: Restrict sunrpc client exports

The sunrpc client exports are not meant to be part of any official kernel
API: they can change at the drop of a hat. Mark them as internal functions
using EXPORT_SYMBOL_GPL.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index fd97a49..74df2d3 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -118,7 +118,7 @@
 	new = kcalloc(clnt->cl_maxproc, sizeof(struct rpc_iostats), GFP_KERNEL);
 	return new;
 }
-EXPORT_SYMBOL(rpc_alloc_iostats);
+EXPORT_SYMBOL_GPL(rpc_alloc_iostats);
 
 /**
  * rpc_free_iostats - release an rpc_iostats structure
@@ -129,7 +129,7 @@
 {
 	kfree(stats);
 }
-EXPORT_SYMBOL(rpc_free_iostats);
+EXPORT_SYMBOL_GPL(rpc_free_iostats);
 
 /**
  * rpc_count_iostats - tally up per-task stats
@@ -215,7 +215,7 @@
 				metrics->om_execute * MILLISECS_PER_JIFFY);
 	}
 }
-EXPORT_SYMBOL(rpc_print_iostats);
+EXPORT_SYMBOL_GPL(rpc_print_iostats);
 
 /*
  * Register/unregister RPC proc files
@@ -241,14 +241,14 @@
 {
 	return do_register(statp->program->name, statp, &rpc_proc_fops);
 }
-EXPORT_SYMBOL(rpc_proc_register);
+EXPORT_SYMBOL_GPL(rpc_proc_register);
 
 void
 rpc_proc_unregister(const char *name)
 {
 	remove_proc_entry(name, proc_net_rpc);
 }
-EXPORT_SYMBOL(rpc_proc_unregister);
+EXPORT_SYMBOL_GPL(rpc_proc_unregister);
 
 struct proc_dir_entry *
 svc_proc_register(struct svc_stat *statp, const struct file_operations *fops)