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| author |   Ingo Molnar <mingo@elte.hu> | 2009-01-06 09:53:05 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-06 09:53:05 +0100 |
| commit | 3d7a96f5a485b7d06c2379f343d7312af89ec9e2 (patch) | |
| tree | 5f097f68eb0f9fd3fa4a10f38672e300e9127b10 /arch/x86/kernel/irqinit_64.c | |
| parent | kmemtrace: Remove the relay version of kmemtrace (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm (diff) | |
| download | linux-dev-3d7a96f5a485b7d06c2379f343d7312af89ec9e2.tar.xz linux-dev-3d7a96f5a485b7d06c2379f343d7312af89ec9e2.zip | |
Merge branch 'linus' into tracing/kmemtrace2
Diffstat (limited to 'arch/x86/kernel/irqinit_64.c')
| -rw-r--r-- | arch/x86/kernel/irqinit_64.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/kernel/irqinit_64.c b/arch/x86/kernel/irqinit_64.c index 6190e6ef546c..31ebfe38e96c 100644 --- a/arch/x86/kernel/irqinit_64.c +++ b/arch/x86/kernel/irqinit_64.c @@ -69,6 +69,18 @@ DEFINE_PER_CPU(vector_irq_t, vector_irq) = { [IRQ15_VECTOR + 1 ... NR_VECTORS - 1] = -1 }; +int vector_used_by_percpu_irq(unsigned int vector) +{ + int cpu; + + for_each_online_cpu(cpu) { + if (per_cpu(vector_irq, cpu)[vector] != -1) + return 1; + } + + return 0; +} + void __init init_ISA_irqs(void) { int i; @@ -121,6 +133,7 @@ static void __init smp_intr_init(void) /* Low priority IPI to cleanup after moving an irq */ set_intr_gate(IRQ_MOVE_CLEANUP_VECTOR, irq_move_cleanup_interrupt); + set_bit(IRQ_MOVE_CLEANUP_VECTOR, used_vectors); #endif } |