[PATCH] x86: print local APIC of APs one by one

[Yinghai Lu]

instead of print that of all APs at the time

Signed-off-by: Yinghai Lu <yhlu.kernel@xxxxxxxxx>

---
 arch/x86/kernel/io_apic.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Index: linux-2.6/arch/x86/kernel/io_apic.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/io_apic.c
+++ linux-2.6/arch/x86/kernel/io_apic.c
@@ -1784,7 +1784,12 @@ __apicdebuginit(void) print_local_APIC(v
 
 __apicdebuginit(void) print_all_local_APICs(void)
 {
-	on_each_cpu(print_local_APIC, NULL, 1);
+	int cpu;
+
+	preempt_disable();
+	for_each_online_cpu(cpu)
+		smp_call_function_single(cpu, print_local_APIC, NULL, 1);
+	preempt_enable();
 }
 
 __apicdebuginit(void) print_PIC(void)
--
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