Re: [Question]: try to fix contention between expire_timers and try_to_del_timer_sync

[qiaozhou]

Hi Will,

On 2017å10æ02æ 22:14, Will Deacon wrote:
> Hi Qiao,
>
> On Mon, Sep 25, 2017 at 07:02:03PM +0800, qiaozhou wrote:
> > Will this bodging patch be merged? It can solve the livelock issue on arm64
> > platforms(at least improve a lot).
>
> Whilst it seemed to help in some cases, I'm not keen to merge it until
> we've identified a sensible way to parameterise the threshold and also
> explain why it doens't appear to help at all on some platforms. I guess
> I could respin a version that takes the threshold on the cmdline and
> also checks to see that the event stream is enabled, since that might
> help with further benchmarking.
>
> Would that be useful?

Got it. Please let me know if you want to verify it on my platform. Many 
thanks.

Best Regards
Qiao