PPC arch and spinlocks

Benjamin Herrenschmidt benh at kernel.crashing.org
Fri Jun 10 08:42:49 EST 2005

On Thu, 2005-06-09 at 11:28 +0200, Garcia Jérémie wrote:
> First of all,tks Jeff for this link. 
> So reading that, I understood that I need to enable the SMP support in the makemenuconfig
> in order to use spinlocks even if I'm working on UP platform.
> That's what I did but I now go through compile errors (I'm using a montavista PE 3.1):

No, spinlocks are always around, though they do nothing on UP (except if
you use the _irq variants). Also, SMP isn't supported on 4xx.

You should do what Hollis says :)


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