[PATCH] docs/rcu: update the api of call_rcu()

[Hui Su <sh_def@163.com>]

update the api of call_rcu()

Signed-off-by: Hui Su <sh_def@163.com>
---
 Documentation/RCU/whatisRCU.rst | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/RCU/whatisRCU.rst b/Documentation/RCU/whatisRCU.rst
index c7f147b8034f..aa7d5ed20da5 100644
--- a/Documentation/RCU/whatisRCU.rst
+++ b/Documentation/RCU/whatisRCU.rst
@@ -497,8 +497,7 @@ long -- there might be other high-priority work to be done.
 In such cases, one uses call_rcu() rather than synchronize_rcu().
 The call_rcu() API is as follows::
 
-	void call_rcu(struct rcu_head * head,
-		      void (*func)(struct rcu_head *head));
+	void call_rcu(struct rcu_head *head, rcu_callback_t func);
 
 This function invokes func(head) after a grace period has elapsed.
 This invocation might happen from either softirq or process context,
-- 
2.25.1