From: Andy Adamson <andros@netapp.com>
Date: Wed, 1 Apr 2009 13:22:40 +0000 (-0400)
Subject: nfs41: sunrpc: Export the call prepare state for session reset
X-Git-Tag: firefly_0821_release~13648^2~3^2~49
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aae2006e9b0c294114915c13022fa348e1a88023;p=firefly-linux-kernel-4.4.55.git

nfs41: sunrpc: Export the call prepare state for session reset

Signed-off-by: Andy Adamson<andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index c39a21040dcb..37881f1a0bd7 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -143,6 +143,7 @@ int		rpc_call_sync(struct rpc_clnt *clnt,
 			      const struct rpc_message *msg, int flags);
 struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred,
 			       int flags);
+void		rpc_restart_call_prepare(struct rpc_task *);
 void		rpc_restart_call(struct rpc_task *);
 void		rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
 size_t		rpc_max_payload(struct rpc_clnt *);
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 64981a2f1cae..177376880fab 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -237,6 +237,7 @@ void		rpc_show_tasks(void);
 int		rpc_init_mempool(void);
 void		rpc_destroy_mempool(void);
 extern struct workqueue_struct *rpciod_workqueue;
+void		rpc_prepare_task(struct rpc_task *task);
 
 static inline void rpc_exit(struct rpc_task *task, int status)
 {
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 5abab094441f..d00e8135f866 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -694,6 +694,19 @@ void rpc_force_rebind(struct rpc_clnt *clnt)
 }
 EXPORT_SYMBOL_GPL(rpc_force_rebind);
 
+/*
+ * Restart an (async) RPC call from the call_prepare state.
+ * Usually called from within the exit handler.
+ */
+void
+rpc_restart_call_prepare(struct rpc_task *task)
+{
+	if (RPC_ASSASSINATED(task))
+		return;
+	task->tk_action = rpc_prepare_task;
+}
+EXPORT_SYMBOL_GPL(rpc_restart_call_prepare);
+
 /*
  * Restart an (async) RPC call. Usually called from within the
  * exit handler.
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index ff50a0546865..1102ce1251f7 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -569,7 +569,7 @@ EXPORT_SYMBOL_GPL(rpc_delay);
 /*
  * Helper to call task->tk_ops->rpc_call_prepare
  */
-static void rpc_prepare_task(struct rpc_task *task)
+void rpc_prepare_task(struct rpc_task *task)
 {
 	task->tk_ops->rpc_call_prepare(task, task->tk_calldata);
 }