Messages in this thread | | | Date | Tue, 28 May 2002 09:13:04 +0100 | From | Keith Whitwell <> | Subject | Re: linux-2.5.18: DRM + cmpxchg issues |
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Adam,
I expect the answer is that we need to dig out the old one.
Previously I don't think the full cmpxchg semantics werere required unless the box is smp -- there's no case where atomic operations are required for hardware interaction, for example. ...
Probably this changed with preempt, though, so we need one even on UP boxes...
Keith
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