Re: RFC: IRQ affinity (aka interrupt routing)

[Matt Thomas <matt%3am-software.com@localhost>]

On Aug 26, 2014, at 11:16 PM, Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost> 
wrote:

> It seems good, except return value. IRQ affinity may fail (e.g. when
> all cpus are set "nointr" flag), so return value should not be void.

then we should have a kcpuset_interruptable which is kcpuset_running
minus those cpus which have nointr.

we also need a callback to the interrupt subsystem when intr changes
on a cpu.