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| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2011-10-30 15:16:04 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:15 +0100 |
| commit | de400d6b78d15a73023485f050bc6b1709dc7a79 (patch) | |
| tree | 2d2e7233a76982db4cf12ff0859054a33e46a911 /drivers/s390/net/lcs.c | |
| parent | ce949717b559709423c1ef716a9db16d1dcadaed (diff) | |
| download | linux-stable-de400d6b78d15a73023485f050bc6b1709dc7a79.tar.gz linux-stable-de400d6b78d15a73023485f050bc6b1709dc7a79.tar.bz2 linux-stable-de400d6b78d15a73023485f050bc6b1709dc7a79.zip | |
[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/net/lcs.c')
| -rw-r--r-- | drivers/s390/net/lcs.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c index fb246b944b16..05fb3f7c7289 100644 --- a/drivers/s390/net/lcs.c +++ b/drivers/s390/net/lcs.c @@ -26,7 +26,6 @@ #define KMSG_COMPONENT "lcs" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt -#include <linux/kernel_stat.h> #include <linux/module.h> #include <linux/if.h> #include <linux/netdevice.h> @@ -1399,7 +1398,6 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb) int rc, index; int cstat, dstat; - kstat_cpu(smp_processor_id()).irqs[IOINT_LCS]++; if (lcs_check_irb_error(cdev, irb)) return; @@ -2399,6 +2397,7 @@ static struct ccw_driver lcs_ccw_driver = { .ids = lcs_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, + .int_class = IOINT_LCS, }; /** |