Stamp softlockup thread earlier before do_timer, because the
latter is the one to actually trigger lock warning for
long-time offline.

Signed-off-by Kevin Tian <kevin.tian@intel.com>

diff -r dcd62413d57b linux-2.6-xen-sparse/arch/i386/kernel/time-xen.c
--- a/linux-2.6-xen-sparse/arch/i386/kernel/time-xen.c	Fri Jan 26 17:04:51 2007 +0800
+++ b/linux-2.6-xen-sparse/arch/i386/kernel/time-xen.c	Tue Jan 30 15:58:41 2007 +0800
@@ -157,6 +157,11 @@ static int __init __permitted_clock_jitt
 }
 __setup("permitted_clock_jitter=", __permitted_clock_jitter);
 
+/* Threshold to stamp softlockup thread to avoid warning for
+ * long-time offline case, like vcpu hotplug.
+ */
+static u64 stolen_threshold = 5000000000ULL; /* 5s */
+
 #if 0
 static void delay_tsc(unsigned long loops)
 {
@@ -660,6 +665,10 @@ irqreturn_t timer_interrupt(int irq, voi
 			       per_cpu(processed_system_time, i));
 	}
 
+	/* Offlined for more than a few seconds? Avoid lockup warnings. */
+	if (stolen > stolen_threshold)
+		touch_softlockup_watchdog();
+
 	/* System-wide jiffy work. */
 	while (delta >= NS_PER_TICK) {
 		delta -= NS_PER_TICK;
@@ -715,10 +724,6 @@ irqreturn_t timer_interrupt(int irq, voi
 					    (cputime_t)delta_cpu);
 	}
 
-	/* Offlined for more than a few seconds? Avoid lockup warnings. */
-	if (stolen > 5*HZ)
-		touch_softlockup_watchdog();
-
 	/* Local timer processing (see update_process_times()). */
 	run_local_timers();
 	if (rcu_pending(cpu))