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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2011-01-05 12:47:28 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2011-01-05 12:47:25 +0100 |
| commit | 052ff461c8427629aee887ccc27478fc7373237c (patch) | |
| tree | 1b2cae2956cc94c5b32730d467e20ff447b8c072 /arch/s390/mm/fault.c | |
| parent | 545b288dcbdea58a2ce2afba5f6a8302d31ac459 (diff) | |
| download | op-kernel-dev-052ff461c8427629aee887ccc27478fc7373237c.zip op-kernel-dev-052ff461c8427629aee887ccc27478fc7373237c.tar.gz | |
[S390] irq: have detailed statistics for interrupt types
Up to now /proc/interrupts only has statistics for external and i/o
interrupts but doesn't split up them any further.
This patch adds a line for every single interrupt source so that it
is possible to easier tell what the machine is/was doing.
Part of the output now looks like this;
CPU0 CPU2 CPU4
EXT: 3898 4232 2305
I/O: 782 315 245
CLK: 1029 1964 727 [EXT] Clock Comparator
IPI: 2868 2267 1577 [EXT] Signal Processor
TMR: 0 0 0 [EXT] CPU Timer
TAL: 0 0 0 [EXT] Timing Alert
PFL: 0 0 0 [EXT] Pseudo Page Fault
[...]
NMI: 0 1 1 [NMI] Machine Checks
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/fault.c')
| -rw-r--r-- | arch/s390/mm/fault.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index fe5701e..839b16d 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -10,6 +10,7 @@ * Copyright (C) 1995 Linus Torvalds */ +#include <linux/kernel_stat.h> #include <linux/perf_event.h> #include <linux/signal.h> #include <linux/sched.h> @@ -543,6 +544,7 @@ static void pfault_interrupt(unsigned int ext_int_code, struct task_struct *tsk; __u16 subcode; + kstat_cpu(smp_processor_id()).irqs[EXTINT_PFL]++; /* * Get the external interruption subcode & pfault * initial/completion signal bit. VM stores this |
