linux-kernel - Re: Do we support ioprio on SSDs with NCQ (Was: Re: IO scheduler based IO controller V10)

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Message-ID: <x49my457uef.fsf@segfault.boston.devel.redhat.com>
Date:	Mon, 05 Oct 2009 11:06:00 -0400
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Corrado Zoccolo <czoccolo@...il.com>
Cc:	Vivek Goyal <vgoyal@...hat.com>, Valdis.Kletnieks@...edu,
	Mike Galbraith <efault@....de>,
	Jens Axboe <jens.axboe@...cle.com>,
	Ingo Molnar <mingo@...e.hu>,
	Ulrich Lukas <stellplatz-nr.13a@...enparkplatz.de>,
	linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, dm-devel@...hat.com,
	nauman@...gle.com, dpshah@...gle.com, lizf@...fujitsu.com,
	mikew@...gle.com, fchecconi@...il.com, paolo.valente@...more.it,
	ryov@...inux.co.jp, fernando@....ntt.co.jp,
	dhaval@...ux.vnet.ibm.com, balbir@...ux.vnet.ibm.com,
	righi.andrea@...il.com, m-ikeda@...jp.nec.com, agk@...hat.com,
	akpm@...ux-foundation.org, peterz@...radead.org,
	jmarchan@...hat.com, torvalds@...ux-foundation.org, riel@...hat.com
Subject: Re: Do we support ioprio on SSDs with NCQ (Was: Re: IO scheduler  based IO controller V10)

Corrado Zoccolo <czoccolo@...il.com> writes:

> Moreover, I suggest removing also the slice_resid part, since its
> semantics doesn't seem consistent.
> When computed, it is not the residency, but the remaining time slice.

It stands for residual, not residency.  Make more sense?

Cheers,
Jeff
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