The difference of request dir between AS and Deadline I/O scheduler?
From: 谢纲
Date: Mon Mar 02 2009 - 00:07:19 EST
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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