Re: [PATCH] swap migration: Fix lru drain

[Andrew Morton]

Christoph Lameter <clameter@xxxxxxxxxxxx> wrote:
>
> On Thu, 8 Dec 2005, Nick Piggin wrote:
> 
> > Do we need a lock_cpu_hotplug() around here?
> 
> Well, then we may need that lock for each "for_each_online_cpu" use?
>

I suppose so..

> > Can't this deadlock if 2 CPUs each send work to the other
> 
> Then we would need to fix the workqueue flushing function.

I don't think I can see a deadlock here.
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