aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/s390/char/con3215.c
diff options
context:
space:
mode:
authorPeter Oberparleiter <peter.oberparleiter@de.ibm.com>2011-10-30 10:16:04 -0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-10-30 10:16:15 -0400
commitde400d6b78d15a73023485f050bc6b1709dc7a79 (patch)
tree2d2e7233a76982db4cf12ff0859054a33e46a911 /drivers/s390/char/con3215.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/char/con3215.c')
-rw-r--r--drivers/s390/char/con3215.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 694464c65fcd..934458ad55e5 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -9,7 +9,6 @@
9 * Dan Morrison, IBM Corporation <dmorriso@cse.buffalo.edu> 9 * Dan Morrison, IBM Corporation <dmorriso@cse.buffalo.edu>
10 */ 10 */
11 11
12#include <linux/kernel_stat.h>
13#include <linux/module.h> 12#include <linux/module.h>
14#include <linux/types.h> 13#include <linux/types.h>
15#include <linux/kdev_t.h> 14#include <linux/kdev_t.h>
@@ -362,7 +361,6 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
362 int cstat, dstat; 361 int cstat, dstat;
363 int count; 362 int count;
364 363
365 kstat_cpu(smp_processor_id()).irqs[IOINT_C15]++;
366 raw = dev_get_drvdata(&cdev->dev); 364 raw = dev_get_drvdata(&cdev->dev);
367 req = (struct raw3215_req *) intparm; 365 req = (struct raw3215_req *) intparm;
368 cstat = irb->scsw.cmd.cstat; 366 cstat = irb->scsw.cmd.cstat;
@@ -776,6 +774,7 @@ static struct ccw_driver raw3215_ccw_driver = {
776 .freeze = &raw3215_pm_stop, 774 .freeze = &raw3215_pm_stop,
777 .thaw = &raw3215_pm_start, 775 .thaw = &raw3215_pm_start,
778 .restore = &raw3215_pm_start, 776 .restore = &raw3215_pm_start,
777 .int_class = IOINT_C15,
779}; 778};
780 779
781#ifdef CONFIG_TN3215_CONSOLE 780#ifdef CONFIG_TN3215_CONSOLE