SUNRPC: Remove BKL around the RPC socket operations etc.

All internal RPC client operations should no longer depend on the BKL,
however lockd and NFS callbacks may still require it.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 37d345c..7d65e19 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -27,6 +27,7 @@
 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/utsname.h>
 #include <linux/workqueue.h>
 
@@ -823,8 +824,10 @@
 	if (encode == NULL)
 		return;
 
+	lock_kernel();
 	task->tk_status = rpcauth_wrap_req(task, encode, req, p,
 			task->tk_msg.rpc_argp);
+	unlock_kernel();
 	if (task->tk_status == -ENOMEM) {
 		/* XXX: Is this sane? */
 		rpc_delay(task, 3*HZ);
@@ -1155,9 +1158,12 @@
 
 	task->tk_action = rpc_exit_task;
 
-	if (decode)
+	if (decode) {
+		lock_kernel();
 		task->tk_status = rpcauth_unwrap_resp(task, decode, req, p,
 						      task->tk_msg.rpc_resp);
+		unlock_kernel();
+	}
 	dprintk("RPC: %4d call_decode result %d\n", task->tk_pid,
 					task->tk_status);
 	return;