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authorSebastian Ott <sebott@linux.vnet.ibm.com>2013-04-25 13:01:39 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-04-26 09:07:13 +0200
commit3ad19b8fb07497f975aa6aba187198ce11191dd2 (patch)
tree3f927e65395aa4a4a180a45dcf34dbc2918c9aea /drivers/s390/cio
parent94c163663fc1dcfc067a5fb3cc1446b9469975ce (diff)
downloadvexpress-lsk-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>
Diffstat (limited to 'drivers/s390/cio')
-rw-r--r--drivers/s390/cio/cio.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index af5fd716449..935d80b4e9c 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