Commit-ID: 615e41c6050a4878b2b68297f4672287941b93cd
Gitweb: http://git.kernel.org/tip/615e41c6050a4878b2b68297f4672287941b93cd
Author: Pranith Kumar <bobby.prani@xxxxxxxxx>
AuthorDate: Wed, 11 Jun 2014 16:39:40 -0400
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 9 Jul 2014 09:15:45 -0700
rcu: Fix a sparse warning in rcu_initiate_boost()
This commit annotates rcu_initiate_boost() fixes the following sparse
warning:
kernel/rcu/tree_plugin.h:1494:13: warning: context imbalance in 'rcu_initiate_boost' - unexpected unlock
Signed-off-by: Pranith Kumar <bobby.prani@xxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
---
kernel/rcu/tree_plugin.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index b39ba72..0409ba3 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1259,6 +1259,7 @@ static int rcu_boost_kthread(void *arg)
* about it going away.
*/
static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
+ __releases(rnp->lock)
{
struct task_struct *t;
@@ -1494,6 +1495,7 @@ static void rcu_prepare_kthreads(int cpu)
#else /* #ifdef CONFIG_RCU_BOOST */
static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
+ __releases(rnp->lock)
{
raw_spin_unlock_irqrestore(&rnp->lock, flags);
}
--
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