Re: [RFC PATCH 2/5] kernel/rcu/tree_plugin.h:1494 fix a sparse warning

["Paul E. McKenney" <paulmck@linux.vnet.ibm.com>]

On Wed, Jun 11, 2014 at 04:39:40PM -0400, Pranith Kumar wrote:
> kernel/rcu/tree_plugin.h:1494:13: warning: context imbalance in 'rcu_initiate_boost' - unexpected unlock
> 
> by annotating the function with releases()
> 
> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>

Hearing no objections, I have queued this for 3.17.

							Thanx, Paul

> ---
>  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 cbc2c45..0c955d9 100644
> --- a/kernel/rcu/tree_plugin.h
> +++ b/kernel/rcu/tree_plugin.h
> @@ -1256,6 +1256,7 @@ 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;
> 
> @@ -1491,6 +1492,7 @@ 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);
>  }
> -- 
> 1.9.1
>