On 2012-12-06 19:01, Tejun Heo wrote:
> As for the original patch, I think it's a bit too much to expose to
> userland.  It's probably a good idea to bind the flusher to the local
> node but do we really need to expose an interface to let userland
> control the affinity directly?  Do we actually have a use case at
> hand?

We need to expose it. Once the binding is set from the kernel side on a
kernel thread, it can't be modified.

Binding either for performance reasons or for ensuring that we
explicitly don't run in some places is a very useful feature.

-- 
Jens Axboe

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