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powerpc/smp: Do not disable IPI interrupts during suspend 

During suspend, all interrupts including IPI will be disabled. In this case,
the suspend process will hang in SMP. To prevent this, pass the flag
IRQF_NO_SUSPEND when requesting IPI irq.

Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Zhao Chenhui 2012-07-20 20:47:01 +08:00 committed by Kumar Gala
parent caa1d631fc
commit e6651de9cc
1 changed files with 1 additions and 1 deletions
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arch/powerpc/kernel/smp.c
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@ -171,7 +171,7 @@ int smp_request_message_ipi(int virq, int msg)
}
#endif
err = request_irq(virq, smp_ipi_action[msg],
IRQF_PERCPU | IRQF_NO_THREAD,
IRQF_PERCPU | IRQF_NO_THREAD | IRQF_NO_SUSPEND,
smp_ipi_name[msg], 0);
WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n",
virq, smp_ipi_name[msg], err);