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[PATCH] genirq: cleanup: merge pending_irq_cpumask[] into irq_desc[]

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Consolidation: remove the pending_irq_cpumask[NR_IRQS] array and move it into
the irq_desc[NR_IRQS].pending_mask field.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar 2006-06-29 02:24:42 -07:00 committed by Linus Torvalds
parent 4a733ee126
commit cd916d31cc
4 changed files with 6 additions and 10 deletions
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2
arch/i386/kernel/io_apic.c
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@ -581,7 +581,7 @@ static int balanced_irq(void *unused)
/* push everything to CPU 0 to give us a starting point. */
for (i = 0 ; i < NR_IRQS ; i++) {
pending_irq_cpumask[i] = cpumask_of_cpu(0);
irq_desc[i].pending_mask = cpumask_of_cpu(0);
set_pending_irq(i, cpumask_of_cpu(0));
}

2
include/linux/irq.h
View file

@ -83,6 +83,7 @@ struct irq_desc {
cpumask_t affinity;
#endif
#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
cpumask_t pending_mask;
unsigned int move_irq; /* need to re-target IRQ dest */
#endif
#ifdef CONFIG_PROC_FS
@ -120,7 +121,6 @@ static inline void set_native_irq_info(int irq, cpumask_t mask)
#ifdef CONFIG_SMP
#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE)
extern cpumask_t pending_irq_cpumask[NR_IRQS];
void set_pending_irq(unsigned int irq, cpumask_t mask);
void move_native_irq(int irq);

4
kernel/irq/manage.c
View file

@ -16,10 +16,6 @@
#ifdef CONFIG_SMP
#if defined (CONFIG_GENERIC_PENDING_IRQ) || defined (CONFIG_IRQBALANCE)
cpumask_t __cacheline_aligned pending_irq_cpumask[NR_IRQS];
#endif
/**
* synchronize_irq - wait for pending IRQ handlers (on other CPUs)
* @irq: interrupt number to wait for

8
kernel/irq/migration.c
View file

@ -8,7 +8,7 @@ void set_pending_irq(unsigned int irq, cpumask_t mask)
spin_lock_irqsave(&desc->lock, flags);
desc->move_irq = 1;
pending_irq_cpumask[irq] = mask;
irq_desc[irq].pending_mask = mask;
spin_unlock_irqrestore(&desc->lock, flags);
}
@ -30,7 +30,7 @@ void move_native_irq(int irq)
desc->move_irq = 0;
if (unlikely(cpus_empty(pending_irq_cpumask[irq])))
if (unlikely(cpus_empty(irq_desc[irq].pending_mask)))
return;
if (!desc->chip->set_affinity)
@ -38,7 +38,7 @@ void move_native_irq(int irq)
assert_spin_locked(&desc->lock);
cpus_and(tmp, pending_irq_cpumask[irq], cpu_online_map);
cpus_and(tmp, irq_desc[irq].pending_mask, cpu_online_map);
/*
* If there was a valid mask to work with, please
@ -58,5 +58,5 @@ void move_native_irq(int irq)
if (likely(!(desc->status & IRQ_DISABLED)))
desc->chip->enable(irq);
}
cpus_clear(pending_irq_cpumask[irq]);
cpus_clear(irq_desc[irq].pending_mask);
}