Re: [PATCH v3] mm, sysctl: make NUMA stats configurable

[Michal Hocko]

On Tue 10-10-17 07:29:31, Dave Hansen wrote:
> On 10/09/2017 10:49 PM, Michal Hocko wrote:
> > On Mon 09-10-17 09:55:49, Michal Hocko wrote:
> >> I haven't checked closely but what happens (or should happen) when you
> >> do a partial read? Should you get an inconsistent results? Or is this
> >> impossible?
> > Well, after thinking about it little bit more, partial reads are always
> > inconsistent so this wouldn't add a new problem.
> > 
> > Anyway I still stand by my position that this sounds over-engineered and
> > a simple 0/1 resp. on/off interface would be both simpler and safer. If
> > anybody wants an auto mode it can be added later (as a value 2 resp.
> > auto).
> 
> 0/1 with the default set to the strict, slower mode?

yes, keep the current semantic and allow users who care to disable
something that stands in the way.

-- 
Michal Hocko
SUSE Labs