Messages in this thread | | | Date | Thu, 11 Feb 2016 09:25:46 -0500 | From | Steven Rostedt <> | Subject | Re: [PATCH 1/2] sched/deadline: add per rq tracking of admitted bandwidth |
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On Thu, 11 Feb 2016 14:05:45 +0100 luca abeni <luca.abeni@unitn.it> wrote:
> Well, I never used the rq utilization to re-build the root_domain > utilization (and I never played with root domains too much... :)... > So, I do not really know. Maybe the code should do: > raw_spin_lock(&rq->lock); > raw_spin_lock(&cpu_rq(cpu)->lock);
Of course you want to use double_rq_lock() here instead.
-- Steve
> sub_rq_bw(&p->dl, &rq->dl); > add_rq_bw(&p->dl, &cpu_rq(cpu)->dl); > [...] > ? > > > Luca
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