i386: introduce "used_vectors" bitmap which can be used to reserve vectors.

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / i8259_32.c

diff --git a/arch/x86/kernel/i8259_32.c b/arch/x86/kernel/i8259_32.c
index d34a10cc13a7dbe4eba3b456ed5eeca83e7be526..f634fc715c99b455d3973645d4d16c3a80e13361 100644 (file)
--- a/arch/x86/kernel/i8259_32.c
+++ b/arch/x86/kernel/i8259_32.c
@@ -403,7 +403,8 @@ void __init native_init_IRQ(void)
                int vector = FIRST_EXTERNAL_VECTOR + i;
                if (i >= NR_IRQS)
                        break;
-               if (vector != SYSCALL_VECTOR) 
+               /* SYSCALL_VECTOR was reserved in trap_init. */
+               if (!test_bit(vector, used_vectors))
                        set_intr_gate(vector, interrupt[i]);
        }