[S390] irqstats: split IPI interrupt accounting

We use both the external call and emergency call IPIs to signal remote
cpus. Therefore it makes sense to account them differently withing
/proc/irqstats so we actually know what happened.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 3bde5688ceb5..3ea872890da2 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -187,7 +187,10 @@ static void do_ext_call_interrupt(unsigned int ext_int_code,
 {
         unsigned long bits;
 
-        kstat_cpu(smp_processor_id()).irqs[EXTINT_IPI]++;
+        if (ext_int_code == 0x1202)
+                kstat_cpu(smp_processor_id()).irqs[EXTINT_EXC]++;
+        else
+                kstat_cpu(smp_processor_id()).irqs[EXTINT_EMS]++;
         /*
          * handle bit signal external calls
          */