Messages in this thread | | | Date | Thu, 22 Dec 2011 08:08:22 -0800 | From | Tejun Heo <> | Subject | Re: [GIT PULL] slab fixes for 3.2-rc4 |
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Hello, Christoph.
On Thu, Dec 22, 2011 at 08:58:43AM -0600, Christoph Lameter wrote: > Well that would be a pretty nice simplification of the API. > Replace the fallback code for the preempt safe ones with the > irqsafe fallbacks, then drop the irqsafe variants from percpu.h.
Yeah, it seems we're going that direction.
> > > The way that the cmpxchg things are used is also similar to transactional > > > memory that is becoming available in the next generation of processors by > > > Intel and that is already available in the current generation of powerpc > > > processors by IBM. It is a way to avoid locking overhead. > > > > Hmmm... how about removing the ones which aren't currently in use? > > Yep. Could easily be done. We can resurrect the stuff as needed when other > variants become necessary. In particular the _and and _or etc stuff was > just added to be backward compatible with the old per cpu and local_t > interfaces. There may be no use cases left.
Yeap, and that one too. Maybe we can finally kill the duplicate confusing static/dynamic accessors too. I'm planning to get to it in several weeks but if anyone can beat me to it, please go ahead.
Thank you.
-- tejun
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