Commit 2a3a2d66 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[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: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent e1c4d014

arch/s390/include/asm/irq.h

+2 −1
Original line number Diff line number Diff line
@@ -8,7 +8,8 @@ enum interruption_class { 
	EXTERNAL_INTERRUPT,

	IO_INTERRUPT,

	EXTINT_CLK,

	EXTINT_IPI,

	EXTINT_EXC,

	EXTINT_EMS,

	EXTINT_TMR,

	EXTINT_TLA,

	EXTINT_PFL,

arch/s390/kernel/irq.c

+2 −1
Original line number Diff line number Diff line
@@ -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" },

arch/s390/kernel/smp.c

+4 −1
Original line number Diff line number Diff line
@@ -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

	 */