Re: [PATCH] kstat_this_cpu in terms of __get_cpu_var and use it

[Linus Torvalds]

On Fri, 4 Jul 2003, Rusty Russell wrote:
> 
> kstat_this_cpu() is defined in terms of per_cpu instead of __get_cpu_var.
> This patch changes that, and uses it where appropriate.

This makes some things much slower, since we'll re-compute the cpu number 
over and over and over again.

This per-cpu'ification has to stop if it just makes code slower.

		Linus