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xen: improvement to wait_for_devices()

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When printing a warning about a timed-out device, print the
current state of both ends of the device connection (i.e., backend as
well as frontend).  This backports half of changeset 146 from the
Xenbits tree.

Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
This commit is contained in:
Paolo Bonzini 2009-07-08 12:27:38 +02:00 committed by Jeremy Fitzhardinge
parent c6e1971139
commit f8dc33088f
1 changed files with 6 additions and 3 deletions
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9
drivers/xen/xenbus/xenbus_probe.c
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@ -885,10 +885,13 @@ static int print_device_status(struct device *dev, void *data)
/* Information only: is this too noisy? */
printk(KERN_INFO "XENBUS: Device with no driver: %s\n",
xendev->nodename);
} else if (xendev->state != XenbusStateConnected) {
} else if (xendev->state < XenbusStateConnected) {
enum xenbus_state rstate = XenbusStateUnknown;
if (xendev->otherend)
rstate = xenbus_read_driver_state(xendev->otherend);
printk(KERN_WARNING "XENBUS: Timeout connecting "
"to device: %s (state %d)\n",
xendev->nodename, xendev->state);
"to device: %s (local state %d, remote state %d)\n",
xendev->nodename, xendev->state, rstate);
}
return 0;