x86: Fix interrupt leak due to migration

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / io_apic.c

diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c
index 7a3f2028e2eb9e01a757a93b0de5b2e4f77f3634..c9513e1ff28d3b79fd5fd5806cd41a0eb33a29c0 100644 (file)
--- a/arch/x86/kernel/io_apic.c
+++ b/arch/x86/kernel/io_apic.c
@@ -1140,6 +1140,20 @@ static void __clear_irq_vector(int irq)
 
        cfg->vector = 0;
        cpus_clear(cfg->domain);
+
+       if (likely(!cfg->move_in_progress))
+               return;
+       cpus_and(mask, cfg->old_domain, cpu_online_map);
+       for_each_cpu_mask_nr(cpu, mask) {
+               for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
+                                                               vector++) {
+                       if (per_cpu(vector_irq, cpu)[vector] != irq)
+                               continue;
+                       per_cpu(vector_irq, cpu)[vector] = -1;
+                       break;
+               }
+       }
+       cfg->move_in_progress = 0;
 }
 
 void __setup_vector_irq(int cpu)