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| author | Ingo Molnar <mingo@elte.hu> | 2009-02-13 09:49:38 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-13 09:49:38 +0100 |
| commit | b1864e9a1afef41709886072c6e6248def0386f4 (patch) | |
| tree | 2fe749209cf860c1dd10efd1bd2ad8df572bd66e /arch/x86/kernel/irq_64.c | |
| parent | Merge branch 'linus' into perfcounters/core (diff) | |
| parent | Merge branches 'x86/paravirt', 'x86/pat', 'x86/setup-v2', 'x86/subarch', 'x86... (diff) | |
| download | linux-b1864e9a1afef41709886072c6e6248def0386f4.tar.xz linux-b1864e9a1afef41709886072c6e6248def0386f4.zip | |
Merge branch 'x86/core' into perfcounters/core
Conflicts:
arch/x86/Kconfig
arch/x86/kernel/apic.c
arch/x86/kernel/setup_percpu.c
Diffstat (limited to 'arch/x86/kernel/irq_64.c')
| -rw-r--r-- | arch/x86/kernel/irq_64.c | 34 |
1 files changed, 5 insertions, 29 deletions
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index 018963aa6ee3..977d8b43a0dd 100644 --- a/arch/x86/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c @@ -48,42 +48,18 @@ static inline void stack_overflow_check(struct pt_regs *regs) #endif } -/* - * do_IRQ handles all normal device IRQ's (the special - * SMP cross-CPU interrupts have their own specific - * handlers). - */ -asmlinkage unsigned int __irq_entry do_IRQ(struct pt_regs *regs) +bool handle_irq(unsigned irq, struct pt_regs *regs) { - struct pt_regs *old_regs = set_irq_regs(regs); struct irq_desc *desc; - /* high bit used in ret_from_ code */ - unsigned vector = ~regs->orig_ax; - unsigned irq; - - exit_idle(); - irq_enter(); - irq = __get_cpu_var(vector_irq)[vector]; - stack_overflow_check(regs); desc = irq_to_desc(irq); - if (likely(desc)) - generic_handle_irq_desc(irq, desc); - else { - if (!disable_apic) - ack_APIC_irq(); - - if (printk_ratelimit()) - printk(KERN_EMERG "%s: %d.%d No irq handler for vector\n", - __func__, smp_processor_id(), vector); - } - - irq_exit(); + if (unlikely(!desc)) + return false; - set_irq_regs(old_regs); - return 1; + generic_handle_irq_desc(irq, desc); + return true; } #ifdef CONFIG_HOTPLUG_CPU |