lkml.org 
[lkml]   [2012]   [Mar]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [RFC PATCH 5/6] implement per-cpu&per-domain state machine call_srcu()
From
>
>> +               }
>> +       }
>> +       spin_unlock_irq(&sp->gp_lock);
>> +
>> +       flush_workqueue(srcu_callback_wq);
>
> Since you already waited for the completions one by one, what's the
> purpose of this?

srcu callbacks are preemptible/sleepable here, so they may not
complete in order,
some may not finish here. so srcu_barrier() needs to wait them.


>
>> +}
>> +EXPORT_SYMBOL_GPL(srcu_barrier);
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2012-03-06 15:49    [W:0.231 / U:7.356 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site