[ltt-dev] [PATCH] Fix dirty page accounting in redirty_page_for_writepage()

[Ingo Molnar]

* Christoph Lameter <cl at linux.com> wrote:

> On Thu, 30 Apr 2009, Ingo Molnar wrote:
> 
> > So we introduced preemption-safety in the v2 version of that commit.
> >
> > This non-atomicity will 1) either not matter 2) will be 
> > irq-atomic by virtue of being within a critical section 3) can 
> > be made atomic in the few remaining cases.
> >
> > And maybe, at most, introduce an opt-in API: 
> > percpu_add_irqsafe().
> 
> Plus percpu_add_preemptsafe().

Ok - that would be easy. Would you be interested in doing that and 
would you be interested in resurrecting your old patches? They are 
genuinely useful IMHO.

	Ingo