[PV-onHVM][Xen][PATCH 2/3] Fix kthread_create

[Ben Guthro <bguthro@virtualiron.com>]

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This is the xen part of the kthread patch
This part simply fixes a compiler warning we get when compiling for a 
uniprocessor guest kernel.

Signed-off-by: Ben Guthro <bguthro@virtualiron.com>
Signed-off-by: Robert Phillips <rphillips@virtualiron.com>

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diff -r a0370a9131be unmodified_drivers/linux-2.6/platform-pci/machine_reboot.c
--- a/unmodified_drivers/linux-2.6/platform-pci/machine_reboot.c	Thu Sep 06 09:43:42 2007 -0400
+++ b/unmodified_drivers/linux-2.6/platform-pci/machine_reboot.c	Thu Sep 06 09:44:14 2007 -0400
@@ -17,12 +17,14 @@ struct ap_suspend_info {
 	atomic_t nr_spinning;
 };
 
+
 /*
  * Use a rwlock to protect the hypercall page from being executed in AP context
  * while the BSP is re-initializing it after restore.
  */
 static DEFINE_RWLOCK(suspend_lock);
 
+#ifdef CONFIG_SMP
 /*
  * Spinning prevents, for example, APs touching grant table entries while
  * the shared grant table is not mapped into the address space imemdiately
@@ -47,6 +49,8 @@ static void ap_suspend(void *_info)
 	mb();
 	atomic_dec(&info->nr_spinning);
 }
+
+#endif
 
 static int bp_suspend(void)
 {

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