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| author |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-02-01 16:07:41 -0500 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-02-03 16:05:30 -0500 |
| commit | 5b02aa1e6e7cf7d3bbf8027dc7e05e0eb2f1e828 (patch) | |
| tree | 447c7f9a618aac8f6e8eb79dc7fa641c619232f8 /drivers/xen/cpu_hotplug.c | |
| parent | xen/granttable: Disable grant v2 for HVM domains. (diff) | |
| download | linux-dev-5b02aa1e6e7cf7d3bbf8027dc7e05e0eb2f1e828.tar.xz linux-dev-5b02aa1e6e7cf7d3bbf8027dc7e05e0eb2f1e828.zip | |
xen/bootup: During bootup suppress XENBUS: Unable to read cpu state
When the initial domain starts, it prints (depending on the
amount of CPUs) a slew of
XENBUS: Unable to read cpu state
XENBUS: Unable to read cpu state
XENBUS: Unable to read cpu state
XENBUS: Unable to read cpu state
which provide no useful information - as the error is a valid
issue - but not on the initial domain. The reason is that the
XenStore is not accessible at that time (it is after all the
first guest) so the CPU hotplug watch cannot parse "availability/cpu"
attribute.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/cpu_hotplug.c')
| -rw-r--r-- | drivers/xen/cpu_hotplug.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c index 14e2d995e958..4dcfced107f5 100644 --- a/drivers/xen/cpu_hotplug.c +++ b/drivers/xen/cpu_hotplug.c @@ -30,7 +30,8 @@ static int vcpu_online(unsigned int cpu) sprintf(dir, "cpu/%u", cpu); err = xenbus_scanf(XBT_NIL, dir, "availability", "%s", state); if (err != 1) { - printk(KERN_ERR "XENBUS: Unable to read cpu state\n"); + if (!xen_initial_domain()) + printk(KERN_ERR "XENBUS: Unable to read cpu state\n"); return err; } |