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genirq: Mirror IRQ_PER_CPU and IRQ_NO_BALANCING in irq_data.state

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That's the right data structure to look at for arch code.

Accessor functions are provided.

	 irqd_is_per_cpu(irqdata);
	 irqd_can_balance(irqdata);

Coders who access them directly will be tracked down and slapped with
stinking trouts.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2011-02-08 17:11:03 +01:00
parent 1ce6068dac
commit a005677b3d
7 changed files with 84 additions and 15 deletions
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15
kernel/irq/chip.c
View File

@@ -706,12 +706,15 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
if (!desc)
return;
/* Sanitize flags */
set &= IRQF_MODIFY_MASK;
clr &= IRQF_MODIFY_MASK;
raw_spin_lock_irqsave(&desc->lock, flags);
desc->status &= ~clr;
desc->status |= set;
irq_settings_clr_and_set(desc, clr, set);
irqd_clear(&desc->irq_data, IRQD_NO_BALANCING | IRQD_PER_CPU);
if (irq_settings_has_no_balance_set(desc))
irqd_set(&desc->irq_data, IRQD_NO_BALANCING);
if (irq_settings_is_per_cpu(desc))
irqd_set(&desc->irq_data, IRQD_PER_CPU);
raw_spin_unlock_irqrestore(&desc->lock, flags);
}