Re: [RCU]: preemptible RCU: sparse annotations

[Paul E. McKenney]

On Wed, Jan 30, 2008 at 08:44:42PM +0100, Patrick McHardy wrote:
> Annotate rcu_read_lock/rcu_read_unlock for sparse.
> 
> 

> [RCU]: preemptible RCU: sparse annotations

Acked-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>

> Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
> 
> diff --git a/include/linux/rcupreempt.h b/include/linux/rcupreempt.h
> index ece8eb3..60c2a03 100644
> --- a/include/linux/rcupreempt.h
> +++ b/include/linux/rcupreempt.h
> @@ -46,8 +46,8 @@
>  #define rcu_bh_qsctr_inc(cpu)
>  #define call_rcu_bh(head, rcu) call_rcu(head, rcu)
> 
> -extern void __rcu_read_lock(void);
> -extern void __rcu_read_unlock(void);
> +extern void __rcu_read_lock(void)	__acquires(RCU);
> +extern void __rcu_read_unlock(void)	__releases(RCU);
>  extern int rcu_pending(int cpu);
>  extern int rcu_needs_cpu(int cpu);
> 

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