[S390] cio chpid offline.

After setting a path to a dasd offline at the SE, I/O hangs on that
dasd for 5 minutes, then continues.
I/O for which an interrupt will not be reported after the channel
path has been disabled was not terminated by the common I/O layer,
causing the dasd MIH to hit after 5 minutes.

Be more aggressive in terminating I/O after setting a channel path
offline. Also make sure to generate a fake irb if the device
driver issues an I/O request after being notified of the killed
I/O and clear residual information from the irb before trying to
start the delayed verification.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 4a9da5bdd535..b00f3ed051a0 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -244,8 +244,7 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
 
         if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) &&
             (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) &&
-            (sch->schib.pmcw.lpum == mask) &&
-            (sch->vpm == 0)) {
+            (sch->schib.pmcw.lpum == mask)) {
                 int cc;
 
                 cc = cio_clear(sch);