Re: [PATCH tip/core/rcu 08/21] tools/memory-model: Add support for synchronize_srcu_expedited()

[Andrea Parri]

On Tue, Mar 26, 2019 at 04:41:20PM -0700, Paul E. McKenney wrote:
> Given that synchronize_rcu_expedited() is supported, this commit adds
> support for synchronize_srcu_expedited().
> 
> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
> ---
>  tools/memory-model/linux-kernel.def | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/memory-model/linux-kernel.def b/tools/memory-model/linux-kernel.def
> index 0c3f0ef486f4..551eeaa389d4 100644
> --- a/tools/memory-model/linux-kernel.def
> +++ b/tools/memory-model/linux-kernel.def
> @@ -51,6 +51,7 @@ synchronize_rcu_expedited() { __fence{sync-rcu}; }
>  srcu_read_lock(X)  __srcu{srcu-lock}(X)
>  srcu_read_unlock(X,Y) { __srcu{srcu-unlock}(X,Y); }
>  synchronize_srcu(X)  { __srcu{sync-srcu}(X); }
> +synchronize_srcu_expedited(X)  { __srcu{sync-srcu}(X); }

This and the other patches from the series do not apply to "tip/core/rcu"
(from the Subject), but this seems straightforward enough:

Acked-by: Andrea Parri <andrea.parri@xxxxxxxxxxxxxxxxxxxx>

  Andrea


>  
>  // Atomic
>  atomic_read(X) READ_ONCE(*X)
> -- 
> 2.17.1
>