Re: [PATCH] cfq: Remove special treatment for metadata rqs.

From: Justin TerAvest
Date: Mon Jun 20 2011 - 16:04:00 EST

On Mon, Jun 20, 2011 at 12:59 PM, Jens Axboe <jaxboe@xxxxxxxxxxxx> wrote:
> On 2011-06-20 21:52, Justin TerAvest wrote:
>> There is no consistency among filesystems from what bios (or requests)
>> are marked as being metadata. It's interesting to expose this in traces,
>> but we shouldn't schedule the requests differently based on whether or
>> not they're marked as being metadata.
> Agree, we should kill that. What is this patch against? cfq_choose_req()
> also has a "choose meta over non-meta" preference.

This is against for-3.1. Let me know if you want it against something else.

Sorry, I missed the preference in cfq_choose_req, since it changed to
be clever about bit operations. I'll send a v2 patch that cleans that
use up as well.

> --
> Jens Axboe
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