Re: [RFC][PATCH 01/16] writeback: do not self-wakeup

From: Christoph Hellwig
Date: Sun Jul 18 2010 - 02:44:52 EST


On Fri, Jul 16, 2010 at 03:44:57PM +0300, Artem Bityutskiy wrote:
> From: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx>
>
> The bdi forker thread wakes up itself via 'bdi_add_to_pending()'.
> And the thread is the only user of 'bdi_add_to_pending()'. Thus,
> we can safely zap the unneeded 'wake_up_process()' call.

At least right now it's called using call_rcu, which offloads the function
to a RCU thread of some sorts.

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