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authorPeter Oberparleiter <peter.oberparleiter@de.ibm.com>2011-10-30 15:16:04 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-10-30 15:16:15 +0100
commitde400d6b78d15a73023485f050bc6b1709dc7a79 (patch)
tree2d2e7233a76982db4cf12ff0859054a33e46a911 /drivers/s390/net/claw.c
parentce949717b559709423c1ef716a9db16d1dcadaed (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/net/claw.c')
-rw-r--r--drivers/s390/net/claw.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index f1fa2483ae6b..b41fae37d3af 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -63,7 +63,6 @@
#define KMSG_COMPONENT "claw"
-#include <linux/kernel_stat.h>
#include <asm/ccwdev.h>
#include <asm/ccwgroup.h>
#include <asm/debug.h>
@@ -291,6 +290,7 @@ static struct ccw_driver claw_ccw_driver = {
.ids = claw_ids,
.probe = ccwgroup_probe_ccwdev,
.remove = ccwgroup_remove_ccwdev,
+ .int_class = IOINT_CLW,
};
static ssize_t
@@ -645,7 +645,6 @@ claw_irq_handler(struct ccw_device *cdev,
struct claw_env *p_env;
struct chbk *p_ch_r=NULL;
- kstat_cpu(smp_processor_id()).irqs[IOINT_CLW]++;
CLAW_DBF_TEXT(4, trace, "clawirq");
/* Bypass all 'unsolicited interrupts' */
privptr = dev_get_drvdata(&cdev->dev);