diff options
| author |   Paolo Bonzini <pbonzini@redhat.com> | 2009-07-08 12:27:39 +0200 |
|---|---|---|
| committer |   Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2009-12-03 11:14:49 -0800 |
| commit | ae7888012969355a548372e99b066d9e31153b62 (patch) | |
| tree | 08d57cf3355910a5aaedda8c8d77cd7d031a67f1 /drivers/xen | |
| parent | xen: improvement to wait_for_devices() (diff) | |
| download | linux-dev-ae7888012969355a548372e99b066d9e31153b62.tar.xz linux-dev-ae7888012969355a548372e99b066d9e31153b62.zip | |
xen: wait up to 5 minutes for device connetion
Increases the device timeout from 10s to 5 minutes, giving the user a
visual indication during that time in case there are problems. The patch
is a backport of changesets 144 and 150 in 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>
Diffstat (limited to 'drivers/xen')
| -rw-r--r-- | drivers/xen/xenbus/xenbus_probe.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 9246a8c4ecf2..649fcdf114b7 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -901,7 +901,7 @@ static int print_device_status(struct device *dev, void *data) static int ready_to_wait_for_devices; /* - * On a 10 second timeout, wait for all devices currently configured. We need + * On a 5-minute timeout, wait for all devices currently configured. We need * to do this to guarantee that the filesystems and / or network devices * needed for boot are available, before we can allow the boot to proceed. * @@ -916,18 +916,30 @@ static int ready_to_wait_for_devices; */ static void wait_for_devices(struct xenbus_driver *xendrv) { - unsigned long timeout = jiffies + 10*HZ; + unsigned long start = jiffies; struct device_driver *drv = xendrv ? &xendrv->driver : NULL; + unsigned int seconds_waited = 0; if (!ready_to_wait_for_devices || !xen_domain()) return; while (exists_connecting_device(drv)) { - if (time_after(jiffies, timeout)) - break; + if (time_after(jiffies, start + (seconds_waited+5)*HZ)) { + if (!seconds_waited) + printk(KERN_WARNING "XENBUS: Waiting for " + "devices to initialise: "); + seconds_waited += 5; + printk("%us...", 300 - seconds_waited); + if (seconds_waited == 300) + break; + } + schedule_timeout_interruptible(HZ/10); } + if (seconds_waited) + printk("\n"); + bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, print_device_status); } |