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Date: Wed, 16 Jan 2013 11:00:52 +0800 From: "tiejun.chen" <tiejun.chen@...driver.com> To: <benh@...nel.crashing.org>, <galak@...nel.crashing.org> CC: <linuxppc-dev@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org> Subject: Re: [RFC][v0][PATCH 1/1] ppc64: ignore interrupts while offline Please ignore this to check next version. Tiejun On 01/15/2013 06:31 PM, Tiejun Chen wrote: > With lazy interrupt, some implementations of hotplug will > get some interrupts even while offline, just ignore these. > > Signed-off-by: Tiejun Chen <tiejun.chen@...driver.com> > --- > arch/powerpc/kernel/irq.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c > index 4f97fe3..dbca574 100644 > --- a/arch/powerpc/kernel/irq.c > +++ b/arch/powerpc/kernel/irq.c > @@ -144,6 +144,12 @@ notrace unsigned int __check_irq_replay(void) > */ > unsigned char happened = local_paca->irq_happened; > > + /* Some implementations of hotplug will get some interrupts while > + * offline, just ignore these. > + */ > + if (cpu_is_offline(smp_processor_id())) > + return 0; > + > /* Clear bit 0 which we wouldn't clear otherwise */ > local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS; > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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