[PATCH 05/16] rcu: Add noreturn attribute to boost kthread

Pranith Kumar
2014-07-23T05:10:52Z

rcu_boost_kthread() runs in an infinite loop and does not return. This commit
adds the __noreturn attribute to the function.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
---
kernel/rcu/tree_plugin.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index bac9797..dd53247 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1222,7 +1222,7 @@ static int rcu_boost(struct rcu_node *rnp)
* Priority-boosting kthread. One per leaf rcu_node and one for the
* root rcu_node.
*/
-static int rcu_boost_kthread(void *arg)
+static __noreturn int rcu_boost_kthread(void *arg)
{
struct rcu_node *rnp = (struct rcu_node *)arg;
int spincnt = 0;
@@ -1250,7 +1250,6 @@ static int rcu_boost_kthread(void *arg)
}
/* NOTREACHED */
trace_rcu_utilization(TPS("End boost kthread@notreached"));
- return 0;
}

/*
--
2.0.0.rc2