Re: PATCH] fix potential latency issues in JBD's journal code

From: Theodore Tso
Date: Sun Jul 06 2008 - 08:22:10 EST


On Sat, Jul 05, 2008 at 10:30:21PM -0700, Arjan van de Ven wrote:
> it's debatable. Because this submit-bh() will sometimes block... it
> wouldn't get IO started for that case. I think this is where I'd like
> Jens to say what he thinks the rules are; clearly the elevator needs to
> treat all of these guys as sync, but maybe the plugging should be ..
> flexible.

Stupid idea.... maybe the unplugging should be done on the wait side?
Has this been considered already?

- Ted
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