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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2013-04-25 13:01:39 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-04-26 09:07:13 +0200 |
| commit | 3ad19b8fb07497f975aa6aba187198ce11191dd2 (patch) | |
| tree | 3f927e65395aa4a4a180a45dcf34dbc2918c9aea | |
| parent | 94c163663fc1dcfc067a5fb3cc1446b9469975ce (diff) | |
| download | op-kernel-dev-3ad19b8fb07497f975aa6aba187198ce11191dd2.zip op-kernel-dev-3ad19b8fb07497f975aa6aba187198ce11191dd2.tar.gz | |
s390/cio: fix irq statistics
When we fetch an interrupt on the CCW console using tsch (via
ccw_device_wait_idle formerly known as wait_cons_dev) we increment
the irq count for the affected interruption class but it is not
accounted as an IO interrupt.
This is broken since commit b603d258a43b4e7339660bdd3b5c25eacd603e54
"s390: remove superfluous tpi from wait_cons_dev"
Fix it so that the sum of the individual interrupts per class matches
the number of IO interrupts again.
Reported-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | drivers/s390/cio/cio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index af5fd71..935d80b 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -647,6 +647,7 @@ void cio_tsch(struct subchannel *sch) local_bh_disable(); irq_enter(); } + kstat_incr_irqs_this_cpu(IO_INTERRUPT, NULL); if (sch->driver && sch->driver->irq) sch->driver->irq(sch); else |
