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x86: move kstat_irqs from kstat to irq_desc

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based on Eric's patch ...

together mold it with dyn_array for irq_desc, will allcate kstat_irqs for
nr_irq_desc alltogether if needed. -- at that point nr_cpus is known already.

v2: make sure system without generic_hardirqs works they don't have irq_desc
v3: fix merging
v4: [mingo@elte.hu] fix typo

[ mingo@elte.hu ] irq: build fix

fix:

 arch/x86/xen/spinlock.c: In function 'xen_spin_lock_slow':
 arch/x86/xen/spinlock.c:90: error: 'struct kernel_stat' has no member named 'irqs'

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2008-08-19 20:50:09 -07:00
committed by Ingo Molnar
parent 3060d6fe28
commit 7f95ec9e4c
11 changed files with 113 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
kernel/irq/chip.c
View File

@@ -312,14 +312,13 @@ handle_simple_irq(unsigned int irq, struct irq_desc *desc)
{
struct irqaction *action;
irqreturn_t action_ret;
const unsigned int cpu = smp_processor_id();
spin_lock(&desc->lock);
if (unlikely(desc->status & IRQ_INPROGRESS))
goto out_unlock;
desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
kstat_cpu(cpu).irqs[irq]++;
kstat_irqs_this_cpu(desc)++;
action = desc->action;
if (unlikely(!action || (desc->status & IRQ_DISABLED)))
@@ -351,7 +350,6 @@ out_unlock:
void
handle_level_irq(unsigned int irq, struct irq_desc *desc)
{
unsigned int cpu = smp_processor_id();
struct irqaction *action;
irqreturn_t action_ret;
@@ -361,7 +359,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc)
if (unlikely(desc->status & IRQ_INPROGRESS))
goto out_unlock;
desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
kstat_cpu(cpu).irqs[irq]++;
kstat_irqs_this_cpu(desc)++;
/*
* If its disabled or no action available
@@ -399,7 +397,6 @@ out_unlock:
void
handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
{
unsigned int cpu = smp_processor_id();
struct irqaction *action;
irqreturn_t action_ret;
@@ -409,7 +406,7 @@ handle_fasteoi_irq(unsigned int irq, struct irq_desc *desc)
goto out;
desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
kstat_cpu(cpu).irqs[irq]++;
kstat_irqs_this_cpu(desc)++;
/*
* If its disabled or no action available
@@ -458,8 +455,6 @@ out:
void
handle_edge_irq(unsigned int irq, struct irq_desc *desc)
{
const unsigned int cpu = smp_processor_id();
spin_lock(&desc->lock);
desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
@@ -476,7 +471,7 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc)
goto out_unlock;
}
kstat_cpu(cpu).irqs[irq]++;
kstat_irqs_this_cpu(desc)++;
/* Start handling the irq */
desc->chip->ack(irq);
@@ -531,7 +526,7 @@ handle_percpu_irq(unsigned int irq, struct irq_desc *desc)
{
irqreturn_t action_ret;
kstat_this_cpu.irqs[irq]++;
kstat_irqs_this_cpu(desc)++;
if (desc->chip->ack)
desc->chip->ack(irq);