Re: [PATCH 2/4] base/drivers/arch_topology: Replace mutex with READ_ONCE / WRITE_ONCE

[Sudeep Holla]

On Mon, Oct 29, 2018 at 05:23:18PM +0100, Daniel Lezcano wrote:
> The mutex protects a per_cpu variable access. The potential race can
> happen only when the cpufreq governor module is loaded and at the same
> time the cpu capacity is changed in the sysfs.
>

I wonder if we really need that sysfs entry to be writable. For some
reason, I had assumed it's read only, obviously it's not. I prefer to
make it RO if there's no strong reason other than debug purposes.

--
Regards,
Sudeep