Re: Got suggestions to reduce the locks in stacker.c?

Previous message: Chris Wright: "Re: Got suggestions to reduce the locks in stacker.c?"
In reply to: James Morris: "Re: Got suggestions to reduce the locks in stacker.c?"
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chrisat_private

* James Morris (jmorrisat_private) wrote:
> On Tue, 23 Jul 2002, David Wheeler wrote:
> 
> > One approach is my previous approach - if I can force
> > writing of pointers to be atomic (any suggestions on how to do so?),
> 
> xchg() may be useful in some situations.

Are we guaranteed xchg() is atomic across all platforms?  It looks like
the right thing (TM) to do.

thanks,
-chris
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