Re: [PATCH 0/2] jump label: 2.6.38 updates

[Mathieu Desnoyers]

* Mathieu Desnoyers (mathieu.desnoyers@xxxxxxxxxx) wrote:
> * David Miller (davem@xxxxxxxxxxxxx) wrote:
[...]
> > We can't wholesale to atomic_t because we do this on variables of
> > all sizes, not just 32-bit ones.
> > 
> > We do them on pointers in the networking for example.
> 
> We have atomic_long_t for this, but yeah, it would kind of suck to have
> to create
> 
> union {
> 	atomic_long_t atomic;
> 	void *ptr;
> }

Actually, using a union for this is probably one of the worse idea I've
had recently. Just casting the pointer to unsigned long and vice-versa,
using atomic_long_*() ops would do the trick. But let's wait and see if
it's really needed.

Thanks,

Mathieu

> 
> all around the place. Let's see if we can get to know which PowerPC
> processor family all this fuss is about, and where this rumour
> originates from.
> 
> Thanks,
> 
> Mathieu
> 
> 
> -- 
> Mathieu Desnoyers
> Operating System Efficiency R&D Consultant
> EfficiOS Inc.
> http://www.efficios.com

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
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