SUNRPC: add call to get configured timeout

Returns the configured timeout for the xprt of the rpc client.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 34206b84d8da..21d52d0dc15c 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -160,6 +160,7 @@ void		rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
 int             rpc_protocol(struct rpc_clnt *);
 struct net *    rpc_net_ns(struct rpc_clnt *);
 size_t          rpc_max_payload(struct rpc_clnt *);
+unsigned long   rpc_get_timeout(struct rpc_clnt *clnt);
 void            rpc_force_rebind(struct rpc_clnt *);
 size_t          rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
 const char      *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index a9f7906c1a6a..09dc0c2b56a3 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1196,6 +1196,21 @@ size_t rpc_max_payload(struct rpc_clnt *clnt)
 EXPORT_SYMBOL_GPL(rpc_max_payload);
 
 /**
+ * rpc_get_timeout - Get timeout for transport in tenths of seconds
+ * @clnt: RPC client to query
+ */
+unsigned long rpc_get_timeout(struct rpc_clnt *clnt)
+{
+        unsigned long ret;
+
+        rcu_read_lock();
+        ret = rcu_dereference(clnt->cl_xprt)->timeout->to_initval;
+        rcu_read_unlock();
+        return ret;
+}
+EXPORT_SYMBOL_GPL(rpc_get_timeout);
+
+/**
  * rpc_force_rebind - force transport to check that remote port is unchanged
  * @clnt: client to rebind
  *