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SubjectRe: [PATCH 1/2] UV: NMI: insert per_cpu accessor function on uv_hub_nmi.

* George Beshers <gbeshers@sgi.com> wrote:

> UV: NMI: insert this_cpu_read accessor function on uv_hub_nmi.
>
> UV NMI was accidently broken by this patch.

Broken in what way?

> commit e16321709c8270f9803bbfdb51e5e02235078c7f
> Author: Christoph Lameter <cl@linux.com>
> Date: Sun Aug 17 12:30:41 2014 -0500

That's a rather old patch. Was no upstream kernel tested since ~August
last year on UV hardware, or is the bug sporadic? The changelog does
not tell us.

> This patch insert this_cpu_read() on when accessing the PER_CPU
> uv_cpu_nmi variable.

Why? What problem does it solve?

Thanks,

Ingo


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