Re: [gcv v3 25/35] powerpc: Replace __get_cpu_var uses

From: Geert Uytterhoeven
Date: Wed Aug 28 2013 - 17:18:59 EST


On Wed, Aug 28, 2013 at 9:48 PM, Christoph Lameter <cl@xxxxxxxxx> wrote:
> 4. Retrieve the content of a percpu struct
>
> DEFINE_PER_CPU(struct mystruct, y);
> struct mystruct x = __get_cpu_var(y);
>
> Converts to
>
> memcpy(this_cpu_ptr(&x), y, sizeof(x));

Still not correct. I think it should be

memcpy(x, this_cpu_ptr(&y), sizeof(x));

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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