Re: sched: 64-bit nr_running

[Ingo Molnar]

* Daniel Walker <dwalker@xxxxxxxxxx> wrote:

> There was a conversation over the mtd redboot bug related to unsigned 
> long vs. unsigned int . On a 64-bit machine unsigned long is 64-bits , 
> and unsigned int is 32-bits . However, both are 32-bits on a 32-bit 
> machine .
> 
> Looking over the scheduler I found a few places that use "unsigned 
> long" for task counting variables (nr_running, nr_active, 
> nr_interruptible) . The problem is that these variables are all bound 
> to 29 bits (according to kernel/pid.c) , but they get expanded to 
> 64-bits on 64-bit machines .

your point being?

	Ingo
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