diff options
author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2011-10-30 10:16:04 -0400 |
---|---|---|
committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 10:16:15 -0400 |
commit | de400d6b78d15a73023485f050bc6b1709dc7a79 (patch) | |
tree | 2d2e7233a76982db4cf12ff0859054a33e46a911 /drivers/s390/cio/qdio_main.c | |
parent | ce949717b559709423c1ef716a9db16d1dcadaed (diff) |
[S390] fix mismatch in summation of I/O IRQ statistics
Current IRQ statistics support does not show detail counts for I/O
interrupts which are processed internally only. The result is a
summation count which is way off such as this one:
CPU0 CPU1 CPU2
I/O: 1331 710 442
[...]
QAI: 15 16 16 [I/O] QDIO Adapter Interrupt
QDI: 1 0 0 [I/O] QDIO Interrupt
DAS: 706 645 381 [I/O] DASD
C15: 26 10 0 [I/O] 3215
C70: 0 0 0 [I/O] 3270
TAP: 0 0 0 [I/O] Tape
VMR: 0 0 0 [I/O] Unit Record Devices
LCS: 0 0 0 [I/O] LCS
CLW: 0 0 0 [I/O] CLAW
CTC: 0 0 0 [I/O] CTC
APB: 0 0 0 [I/O] AP Bus
Fix this by moving I/O interrupt accounting into the common I/O layer.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/qdio_main.c')
-rw-r--r-- | drivers/s390/cio/qdio_main.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 6547ff469410..7ded1b26fd25 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c | |||
@@ -15,7 +15,6 @@ | |||
15 | #include <linux/delay.h> | 15 | #include <linux/delay.h> |
16 | #include <linux/gfp.h> | 16 | #include <linux/gfp.h> |
17 | #include <linux/io.h> | 17 | #include <linux/io.h> |
18 | #include <linux/kernel_stat.h> | ||
19 | #include <linux/atomic.h> | 18 | #include <linux/atomic.h> |
20 | #include <asm/debug.h> | 19 | #include <asm/debug.h> |
21 | #include <asm/qdio.h> | 20 | #include <asm/qdio.h> |
@@ -1128,7 +1127,6 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm, | |||
1128 | return; | 1127 | return; |
1129 | } | 1128 | } |
1130 | 1129 | ||
1131 | kstat_cpu(smp_processor_id()).irqs[IOINT_QDI]++; | ||
1132 | if (irq_ptr->perf_stat_enabled) | 1130 | if (irq_ptr->perf_stat_enabled) |
1133 | irq_ptr->perf_stat.qdio_int++; | 1131 | irq_ptr->perf_stat.qdio_int++; |
1134 | 1132 | ||