[S390] cio: no path after machine check. (3b88508a) · Commits · 戴 / test

Devices enter no-path state after disabling a channel path via the SE even though another path has been reenabled at the SE. The devices are set into no-path state before triggering path verification even though other paths may have become available. To fix this trigger path verification before setting a device into no-path state. Signed-off-by:

Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by:

Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/cio/chsc.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -238,8 +238,6 @@ s390_subchannel_remove_chpid(struct device dev, void data)
		/* Check for single path devices. */
		if (sch->schib.pmcw.pim == 0x80)
		goto out_unreg;
		if (sch->vpm == mask)
		goto out_unreg;

		if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) &&
		(sch->schib.scsw.actl & SCSW_ACTL_SCHACT) &&
		@@ -258,6 +256,8 @@ 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)
		goto out_unreg;
		out_unlock:
		spin_unlock_irq(&sch->lock);
		return 0;

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