rcu: Use rcu_callback_t in call_rcu*() and friends

As we now have rcu_callback_t typedefs as the type of rcu callbacks, we
should use it in call_rcu*() and friends as the type of parameters. This
could save us a few lines of code and make it clear which function
requires an rcu callbacks rather than other callbacks as its argument.

Besides, this can also help cscope to generate a better database for
code reading.

Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 7a0b3bc7c5ed..5f748c5a40f0 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -534,7 +534,7 @@ static void rcu_spawn_tasks_kthread(void);
  * Post an RCU-tasks callback.  First call must be from process context
  * after the scheduler if fully operational.
  */
-void call_rcu_tasks(struct rcu_head *rhp, void (*func)(struct rcu_head *rhp))
+void call_rcu_tasks(struct rcu_head *rhp, rcu_callback_t func)
 {
         unsigned long flags;
         bool needwake;