On Fri, 20 Apr 2007, David Miller wrote:

> That's correct for hardware interrupts.  It will, however, work for
> soft interrupts and similar contexts.

Is there really a significant gain? It seems that such logic would be more 
expensive than an atomic operation.

local_t is saving atomic overhead right? It does no good for cacheline 
contention etc. Adding another int will increase cache footprint. 
Another rat hole?


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