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Re: UP/SMP difference in IRQ_STAT

On Mon, Jan 07, 2002 at 06:34:29PM +0530, Bharata B Rao wrote:

> As you can see, with this, the assignment won't work. Eg, If I wan't to do
> local_irq_count = 0, it translates (under UP) to
> (cpu, irq_stat[0].__local_irq_count) = 0, which is syntactically wrong.

yes, I follow your point (at least in 2.2 there were several cases like this)

You have two options

1) define IRQ_STAT locally as you need it
2) post a patch to linux-kernel with relevant benchmarks and statistics showing it
   has no appreciable performance benefit to stay broken like this

regards
john

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