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Re: [Xen-devel] [PATCH] do_softirq() of Xen/IA64

To: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Fri, 30 Jun 2006 12:40:29 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Fri, 30 Jun 2006 04:40:50 -0700
List-id: Xen developer discussion <xen-devel.lists.xensource.com>


On 30 Jun 2006, at 11:47, Isaku Yamahata wrote:

It is needless to use smp_processor_id() twice on x86.
Should #ifndef be used around cpu = smp_processor_id()?
Or should something like __ARCH_HAVE_DO_SORTIRQ be introduced?

I doubt that this is a worthwhile optimisation. I'll take the patchas-is, but add a comment.


 -- Keir


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References:
- [Xen-devel] [PATCH] do_softirq() of Xen/IA64
  - From: Isaku Yamahata

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