Re: [Xen-devel] [PATCH v3 38/47] xen/sched: move per-cpu variable cpupool to struct sched_resource

[Jürgen Groß <jgross@xxxxxxxx>]

On 24.09.19 15:10, Jan Beulich wrote:
> On 14.09.2019 10:52, Juergen Gross wrote:
> > Having a pointer to struct cpupool in struct sched_resource instead
> > of per cpu is enough.
> >
> > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> Technically / mechanically
> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
>
> However, I'm confused by what appears to be a resulting chicken-and-
> egg problem when considering the plan of allowing different
> granularities in different cpupools. Perhaps I'm either mis-
> remembering that plan, or it's not clear to me how data would get
> structured in that case.
There still is:

DEFINE_PER_CPU_READ_MOSTLY(struct sched_resource *, sched_res);


Juergen

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