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

From: Paul Menage
Date: Sat Feb 23 2008 - 15:02:19 EST


On Sat, Feb 23, 2008 at 11:57 AM, Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> 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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