[Xen-changelog] [linux-2.6.18-xen] Skip vcpu_hotplug for VCPU 0 in smp_resume.

["Xen patchbot-linux-2.6.18-xen" <patchbot-linux-2.6.18-xen@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1238582581 -3600
# Node ID 67a7ffcc50679d134e6079c738c63049d6314add
# Parent  b358ebf1c41664c7a7cf5b33feb5df779631229f
Skip vcpu_hotplug for VCPU 0 in smp_resume.
This function can occasionally take up to 2 seconds to complete,
and smp_suspend also skips VCPU 0.

Signed-off-by: Brendan Cully <brendan@xxxxxxxxx>
---
 drivers/xen/core/cpu_hotplug.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)

diff -r b358ebf1c416 -r 67a7ffcc5067 drivers/xen/core/cpu_hotplug.c
--- a/drivers/xen/core/cpu_hotplug.c    Tue Mar 31 12:01:50 2009 +0100
+++ b/drivers/xen/core/cpu_hotplug.c    Wed Apr 01 11:43:01 2009 +0100
@@ -144,8 +144,11 @@ void smp_resume(void)
 {
        unsigned int cpu;
 
-       for_each_possible_cpu(cpu)
+       for_each_possible_cpu(cpu) {
+               if (cpu == 0)
+                       continue;
                vcpu_hotplug(cpu);
+       }
 }
 
 int cpu_up_check(unsigned int cpu)

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