Re: spin_unlock optimization(i386)

Erich Boleyn (erich@uruk.org)
Wed, 24 Nov 1999 19:26:39 -0800


[I'm writing from my home system now...]

Andrea Arcangeli <andrea@suse.de> wrote:

> ... In most cases the only thing we care is the order of
> _reads_ and of _writes_. Nothing more. It seems by reading your email that
> we are wasting time adding explicit memory barriers with lock on the bus
> to enforce ordering on IA32. So I believe we can remove them as the
> hardware is enforcing ordering for us.

I believe so.

--
    Erich Stefan Boleyn                      \_         <erich@uruk.org>
  Mad but Happy Scientist                      \__    http://www.uruk.org/
  Motto: "I'll live forever or die trying"        ---------------------------

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