Messages in this thread | | | Date | Thu, 30 Apr 2009 09:50:05 -0400 | From | Mathieu Desnoyers <> | Subject | Re: [PATCH] Fix dirty page accounting in redirty_page_for_writepage() |
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* Ingo Molnar (mingo@elte.hu) wrote: > > * Christoph Lameter <cl@linux.com> wrote: > > > On Wed, 29 Apr 2009, Mathieu Desnoyers wrote: > > > > > to have a good look at the memory accounting code. We could > > > probably benefit of Christoph Lameter's cpu ops (using segment > > > registers to address per-cpu variables with atomic inc/dec) in > > > there. Or at least removing interrupt disabling by using preempt > > > disable and local_t variables for the per-cpu counters could > > > bring some benefit. > > > > Guess we are ready for atomic per cpu ops now that the new per cpu > > allocator is in? Segment register issues with the PDA are also > > solved right? > > it's all done, implemented and upstream already. You are a bit late > to the party ;-) > > Ingo
Or way too early, depending on the point of view. :-)
e.g. http://lkml.org/lkml/2008/5/30/3
I think Christoph deserves credits for pioneering this area with fresh ideas.
Mathieu
-- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
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