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Message-ID: <d364733c0903012106g2625d433o4cdbbbcc5a9ff19a@mail.gmail.com>
Date: Mon, 2 Mar 2009 13:06:57 +0800
From: 谢纲 <xiegang112@...il.com>
To: linux-kernel@...r.kernel.org
Subject: The difference of request dir between AS and Deadline I/O scheduler?
Hi,
I'm little confused about the defination of request dir in AS and
Deadline I/O scheduler.
In AS, the request dir is defined by wheher it's sync:
data_dir = rq_is_sync(rq);
But in Deadline, the requests are grouped by read and write.
Why is there the difference since AS is an extension of Deadline?
what's the consideration?
Thanks,
--
Xie Gang
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