Re: [PATCH 05/16] sched: SCHED_DEADLINE policy implementation.

From: Juri Lelli
Date: Mon Apr 23 2012 - 08:14:16 EST


On 04/23/2012 01:32 PM, Peter Zijlstra wrote:
On Fri, 2012-04-06 at 09:14 +0200, Juri Lelli wrote:
+ /*
+ * We Keep moving the deadline away until we get some
+ * available runtime for the entity. This ensures correct
+ * handling of situations where the runtime overrun is
+ * arbitrary large.
+ */
+ while (dl_se->runtime<= 0) {
+ dl_se->deadline += dl_se->dl_deadline;
+ dl_se->runtime += dl_se->dl_runtime;
+ }

Does gcc 'optimize' that into a division? If so, it might need special
glue to make it not do that.

I got two adds and a jle, no div here..

Thanks,

- Juri
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