Re: [patch v3 3/3] percpu_counter: use atomic64 for counter in SMP

[Christoph Lameter]

On Mon, 18 Apr 2011, Shaohua Li wrote:

> > Disabling preemption here doesn't make any sense.
> > percpu_counter_set() inherently requires its users to guarantee that
> > no other user is modifying the percpu counter.
> ha, ok.
> should I still rebase the patch against Christoph's patch? Looks that
> one is still not settled down.

I am a kind of confused about some of the arguments made there right now
and having your patch in that does the conversion to atomic would
simplify my patch (removes the spin_lock/unlock sequence in overflow
handling).


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