[PATCH v3 tip/core/rcu 4/9] rcu: Export RCU-tasks APIs to GPL modules

Paul E. McKenney
2014-07-31T21:57:03Z

From: Steven Rostedt <rostedt@goodmis.org>

This commit exports the RCU-tasks APIs, call_rcu_tasks(),
synchronize_rcu_tasks(), and rcu_barrier_tasks(), to GPL-licensed
kernel modules.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
kernel/rcu/update.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index fe866848a063..b7694019e952 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -429,6 +429,7 @@ void synchronize_rcu_tasks(void)
/* Wait for the grace period. */
wait_rcu_gp(call_rcu_tasks);
}
+EXPORT_SYMBOL_GPL(synchronize_rcu_tasks);

/**
* rcu_barrier_tasks - Wait for in-flight call_rcu_tasks() callbacks.
@@ -441,6 +442,7 @@ void rcu_barrier_tasks(void)
/* There is only one callback queue, so this is easy. ;-) */
synchronize_rcu_tasks();
}
+EXPORT_SYMBOL_GPL(rcu_barrier_tasks);

/* RCU-tasks kthread that detects grace periods and invokes callbacks. */
static int __noreturn rcu_tasks_kthread(void *arg)
--
1.8.1.5