Messages in this thread Patch in this message | | | Date | Fri, 2 Mar 2018 14:04:36 +0100 | From | Sebastian Andrzej Siewior <> | Subject | [PATCH] x86/ioapic: Do not unmask io_apic when interrupt is in progress |
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From: Ingo Molnar <mingo@elte.hu> Date: Fri, 3 Jul 2009 08:29:27 -0500
With threaded interrupts we might see an interrupt in progress on migration. Do not unmask it when this is the case.
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- arch/x86/kernel/apic/io_apic.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -1690,7 +1690,8 @@ static bool io_apic_level_ack_pending(st static inline bool ioapic_irqd_mask(struct irq_data *data) { /* If we are moving the irq we need to mask it */ - if (unlikely(irqd_is_setaffinity_pending(data))) { + if (unlikely(irqd_is_setaffinity_pending(data) && + !irqd_irq_inprogress(data))) { mask_ioapic_irq(data); return true; }
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