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Diffstat (limited to 'arch/x86/kernel/irq_32.c')
-rw-r--r--arch/x86/kernel/irq_32.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 119fc9c8ff7f..e0f29be8ab0b 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -15,9 +15,9 @@
#include <linux/notifier.h>
#include <linux/cpu.h>
#include <linux/delay.h>
+#include <linux/uaccess.h>
#include <asm/apic.h>
-#include <asm/uaccess.h>
DEFINE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
EXPORT_PER_CPU_SYMBOL(irq_stat);
@@ -93,7 +93,7 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
return 0;
/* build the stack frame on the IRQ stack */
- isp = (u32 *) ((char*)irqctx + sizeof(*irqctx));
+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
irqctx->tinfo.task = curctx->tinfo.task;
irqctx->tinfo.previous_esp = current_stack_pointer;
@@ -137,7 +137,7 @@ void __cpuinit irq_ctx_init(int cpu)
hardirq_ctx[cpu] = irqctx;
- irqctx = (union irq_ctx*) &softirq_stack[cpu*THREAD_SIZE];
+ irqctx = (union irq_ctx *) &softirq_stack[cpu*THREAD_SIZE];
irqctx->tinfo.task = NULL;
irqctx->tinfo.exec_domain = NULL;
irqctx->tinfo.cpu = cpu;
@@ -147,7 +147,7 @@ void __cpuinit irq_ctx_init(int cpu)
softirq_ctx[cpu] = irqctx;
printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n",
- cpu,hardirq_ctx[cpu],softirq_ctx[cpu]);
+ cpu, hardirq_ctx[cpu], softirq_ctx[cpu]);
}
void irq_ctx_exit(int cpu)
@@ -174,7 +174,7 @@ asmlinkage void do_softirq(void)
irqctx->tinfo.previous_esp = current_stack_pointer;
/* build the stack frame on the softirq stack */
- isp = (u32*) ((char*)irqctx + sizeof(*irqctx));
+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
call_on_stack(__do_softirq, isp);
/*
@@ -233,27 +233,28 @@ unsigned int do_IRQ(struct pt_regs *regs)
#ifdef CONFIG_HOTPLUG_CPU
#include <mach_apic.h>
-void fixup_irqs(cpumask_t map)
+/* A cpu has been removed from cpu_online_mask. Reset irq affinities. */
+void fixup_irqs(void)
{
unsigned int irq;
static int warned;
struct irq_desc *desc;
for_each_irq_desc(irq, desc) {
- cpumask_t mask;
+ const struct cpumask *affinity;
if (!desc)
continue;
if (irq == 2)
continue;
- cpus_and(mask, desc->affinity, map);
- if (any_online_cpu(mask) == NR_CPUS) {
+ affinity = desc->affinity;
+ if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) {
printk("Breaking affinity for irq %i\n", irq);
- mask = map;
+ affinity = cpu_all_mask;
}
if (desc->chip->set_affinity)
- desc->chip->set_affinity(irq, mask);
+ desc->chip->set_affinity(irq, affinity);
else if (desc->action && !(warned++))
printk("Cannot set affinity for irq %i\n", irq);
}