On Fri, Sep 20, 2002 at 03:43:47PM +0400, Oleg Drokin wrote:
> On Fri, Sep 20, 2002 at 11:40:16AM +0200, Ingo Molnar wrote:
> > we need a cmpxchg() function in the generic library, using a spinlock.
>
> But this is not safe for arches that provides SMP but does not provide
> cmpxchg in hadware, right?
> I mean it is only safe to use such spinlock-based function if
> all other places read and write this value via special functions that are
> also taking this spinlock.
Correct.
> Do you think we can count on this?
I don't think so.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
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