Re: why are some atomic_t's not volatile, while most are?

From: Chris Friesen
Date: Tue Aug 07 2007 - 18:49:51 EST


Jan Engelhardt wrote:
On Aug 7 2007 15:38, Chris Friesen wrote:

That volatile is there precisely to force the compiler to dereference it every
single time.

Actually, the dereference will be done once (or more often if registers
are short or the compiler does not feel like keeping it around),
and the read from memory will be done on every iteration ;-)

My bad. You are, of course, correct. :)

Chris
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