Re: [PATCH 1/2] Revert "arm64: use cpu_online_mask when using forced irq_set_affinity"

From: Will Deacon
Date: Thu Aug 28 2014 - 05:38:17 EST

On Wed, Aug 27, 2014 at 10:30:06AM +0100, byungchul.park@xxxxxxx wrote:
> From: Byungchul Park <byungchul.park@xxxxxxx>
> This reverts commit 601c942176d8ad8334118bddb747e3720bed24f8.
> This patch is designed to ensure that the cpu being offlined is not
> present in the affinity mask. But it is a bad idea to overwrite the
> affinity variable with cpu_online_mask, even in case that the current
> affinity already includes onlined cpus.
> So revert this patch to replace it with another one doing exactly
> what it intends.

Sudeep: what's the right way forward for this? There seems to be general
agreement that the existing code is broken, but a bunch of different
`fixes'. Can we just take a straight port of what tglx proposed for ARM?
(changing force to false)

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