From 2a3a2d66aa4e5abaf8f9222d21735321f02a00dc Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Sun, 30 Oct 2011 15:17:19 +0100 Subject: [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 Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/irq.c | 3 ++- arch/s390/kernel/smp.c | 5 ++++- 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'arch/s390/kernel') diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 30faaef34457..b9a7fdd9c814 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -33,7 +33,8 @@ static const struct irq_class intrclass_names[] = { {.name = "EXT" }, {.name = "I/O" }, {.name = "CLK", .desc = "[EXT] Clock Comparator" }, - {.name = "IPI", .desc = "[EXT] Signal Processor" }, + {.name = "EXC", .desc = "[EXT] External Call" }, + {.name = "EMS", .desc = "[EXT] Emergency Signal" }, {.name = "TMR", .desc = "[EXT] CPU Timer" }, {.name = "TAL", .desc = "[EXT] Timing Alert" }, {.name = "PFL", .desc = "[EXT] Pseudo Page Fault" }, 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 */ -- cgit v1.2.3