Re: [PATCH for-4.8] irq/affinity: use get/put_online_cpus

From: Thomas Gleixner
Date: Mon Aug 22 2016 - 05:04:22 EST


On Sun, 14 Aug 2016, Christoph Hellwig wrote:
> Any chance to get a quick review for this and get it off to Linus?
> Without this fix the function is unusable in 4.8+ on my test systems
> because we seem to always get a inconsistent view of the cpu online
> bitmap - something that didn't happen before this merge window oddly
> enough.

That only happens if you have concurrent cpu hotplug operations, but yes this
needs to be fixed anyway.

Thanks,

tglx