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[S390] cio: always query all paths on path verification.

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Reappearing channel paths are sometimes not utilized by CCW devices
because path verification incorrectly relies on path-operational-mask
information which is not updated until a channel path has been used
again.
Modify path verification procedure to always query all available paths
to a device.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Peter Oberparleiter
2006-09-20 15:59:59 +02:00
committed by Martin Schwidefsky
parent e0e32c8eba
commit 28bdc6f623
5 changed files with 68 additions and 61 deletions
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2
drivers/s390/cio/chsc.c
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@@ -256,7 +256,7 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
/* trigger path verification. */
if (sch->driver && sch->driver->verify)
sch->driver->verify(&sch->dev);
else if (sch->vpm == mask)
else if (sch->lpm == mask)
goto out_unreg;
out_unlock:
spin_unlock_irq(&sch->lock);