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xen-devel
[Xen-devel] Re: [PATCH v2 1/2] x86: skip migrating IRQF_PER_CPU irq in f
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To: |
Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH v2 1/2] x86: skip migrating IRQF_PER_CPU irq in fixup_irqs |
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From: |
Thomas Gleixner <tglx@xxxxxxxxxxxxx> |
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Date: |
Mon, 9 May 2011 14:39:04 +0200 (CEST) |
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Cc: |
"Tian, Kevin" <kevin.tian@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "JBeulich@xxxxxxxxxx" <JBeulich@xxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>, "mingo@xxxxxxxxxx" <mingo@xxxxxxxxxx>, "hpa@xxxxxxxxx" <hpa@xxxxxxxxx> |
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Mon, 09 May 2011 05:40:29 -0700 |
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Alpine 2.02 (LFD 1266 2009-07-14) |
On Fri, 6 May 2011, Konrad Rzeszutek Wilk wrote:
> On Fri, May 06, 2011 at 02:43:36PM +0800, Tian, Kevin wrote:
> > because Xen event chip silently fails the set_affinity ops, and
> > logically IRQF_PER_CPU should be recognized here.
>
> OK, so what if the set_affinity ops was implemented?
An interrupt chip which has a set_affinity op should not mark
something per cpu, which implies that the irq CANNOT be moved.
Thanks,
tglx
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