Messages in this thread | | | Date | Thu, 30 Apr 2009 14:07:01 -0400 (EDT) | From | Christoph Lameter <> | Subject | Re: [PATCH] Fix dirty page accounting in redirty_page_for_writepage() |
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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().
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