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| author | Peter Oberparleiter | 2011-10-30 15:16:04 +0100 |
|---|---|---|
| committer | Martin Schwidefsky | 2011-10-30 15:16:15 +0100 |
| commit | de400d6b78d15a73023485f050bc6b1709dc7a79 (patch) | |
| tree | 2d2e7233a76982db4cf12ff0859054a33e46a911 /drivers/s390/net/ctcm_main.c | |
| parent | Merge git://github.com/rustyrussell/linux (diff) | |
| download | kernel-qcow2-linux-de400d6b78d15a73023485f050bc6b1709dc7a79.tar.gz kernel-qcow2-linux-de400d6b78d15a73023485f050bc6b1709dc7a79.tar.xz kernel-qcow2-linux-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/ctcm_main.c')
| -rw-r--r-- | drivers/s390/net/ctcm_main.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index 426787efc492..5cb93a8e3403 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -24,7 +24,6 @@ #define KMSG_COMPONENT "ctcm" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt -#include <linux/kernel_stat.h> #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> @@ -1203,7 +1202,6 @@ static void ctcm_irq_handler(struct ccw_device *cdev, int cstat; int dstat; - kstat_cpu(smp_processor_id()).irqs[IOINT_CTC]++; CTCM_DBF_TEXT_(TRACE, CTC_DBF_DEBUG, "Enter %s(%s)", CTCM_FUNTAIL, dev_name(&cdev->dev)); @@ -1769,6 +1767,7 @@ static struct ccw_driver ctcm_ccw_driver = { .ids = ctcm_ids, .probe = ccwgroup_probe_ccwdev, .remove = ccwgroup_remove_ccwdev, + .int_class = IOINT_CTC, }; static struct ccwgroup_driver ctcm_group_driver = { |