linux-kernel - Re: [PATCH 3/8] sched: rt-group: interface

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Date:	Sat, 23 Feb 2008 12:02:06 -0800
From:	"Paul Menage" <menage@...gle.com>
To:	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>
Cc:	"Ingo Molnar" <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	tong.n.li@...el.com
Subject: Re: [PATCH 3/8] sched: rt-group: interface

On Sat, Feb 23, 2008 at 11:57 AM, Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote:
>  > If so, could we avoid that problem by using 0 rather than -1 as the
>  > "unlimited" value? It looks from what I've read in the Documentation
>  > changes as though 0 isn't really a meaningful value.
>
>  0 means no time, quite useful and clearly distinct from inf. time.
>

So a real-time task in a cgroup with a 0 rt_runtime can be in the R
state but never actually get to run? OK, if people need to be able to
do that then fair enough.

In that case I guess I'll have to add signed versions of the
read_uint/write_uint methods.

Paul
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