Re: Linux 2.4.26-rc1 (cmpxchg vs 80386 build)

From: Len Brown
Date: Mon Mar 29 2004 - 17:10:23 EST

On Mon, 2004-03-29 at 00:22, Willy Tarreau wrote:

> > 4. re-implement locks for the 80386 case.
> I like this one, but a simpler way : don't support SMP in this case, so that
> we won't have to play with locks. This would lead to something like this :

Linux uses this locking mechanism to coordinate shared access
to hardware registers with embedded controllers,
which is true also on uniprocessors too.


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