linux-kernel - Re: [PATCH] aio: avoid using queue_delayed_work in aio_kick

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Date:	Mon, 30 Jun 2008 11:20:27 +0530
From:	Nikanth Karthikesan <knikanth@...e.de>
To:	Jeff Moyer <jmoyer@...hat.com>
Cc:	linux-aio@...ck.org, linux-kernel@...r.kernel.org,
	Benjamin LaHaise <bcrl@...ck.org>,
	Zach Brown <zach.brown@...cle.com>
Subject: Re: [PATCH] aio: avoid using queue_delayed_work in aio_kick_handler to schedule itself

On Friday 27 June 2008 18:41:37 Jeff Moyer wrote:
> Nikanth Karthikesan <knikanth@...e.de> writes:
> > Avoid using queue_delayed_work in aio_kick_handler() to run itself
> > immediately. Instead use aio_run_all_iocbs()
>
> Can you give some rationale for this change?  Also, how did you test it?
>

The comment in aio_kick_handler(), "we're in a worker thread already, don't 
use queue_delayed_work" triggered me to do this. Ran multiple instances 
of Stephen Hemminger's aio cp for basic testing.

I think this would make it unfair between different kioctx? May be only the 
comment should be removed? 

Thanks
Nikanth Karthikesan






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