[Xen-devel] [PATCH] Adjust handle_hpet_broadcast to let it run better before broadcast exit

["Wei, Gang" <gang.wei@xxxxxxxxx>]

Adjust handle_hpet_broadcast to let it run better before broadcast exit

Since hpet_broadcast_exit has been moved after interrupt enabled in C3
case, so adjust the handler of hpet broadcast to adapt to this.
Meanwhile, remove a freqently executed debug print line to simplify the
serial output.

Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>

diff -r 63317b6c3eab xen/arch/x86/hpet.c
--- a/xen/arch/x86/hpet.c       Mon Jul 14 15:21:03 2008 +0100
+++ b/xen/arch/x86/hpet.c       Wed Jul 16 12:43:52 2008 +0800
@@ -97,8 +97,6 @@ static int reprogram_hpet_evt_channel(
     delta = expire - now;
     if ( delta <= 0 )
     {
-        printk(KERN_DEBUG "reprogram: expire(%"PRIx64") < "
-               "now(%"PRIx64")\n", expire, now);
         if ( !force )
             return -ETIME;
     }
@@ -142,12 +140,10 @@ static void handle_hpet_broadcast(struct
 {
     cpumask_t mask;
     s_time_t now, next_event;
-    int cpu, current_cpu = smp_processor_id();
+    int cpu;
 
     spin_lock(&ch->lock);
 
-    if ( cpu_isset(current_cpu, ch->cpumask) )
-        printk(KERN_DEBUG "WARNING: current cpu%d in bc_mask\n",
current_cpu);
 again:
     ch->next_event = STIME_MAX;
     next_event = STIME_MAX;
@@ -162,8 +158,6 @@ again:
         else if ( per_cpu(timer_deadline, cpu) < next_event )
             next_event = per_cpu(timer_deadline, cpu);
     }
-    if ( per_cpu(timer_deadline, current_cpu) <= now )
-        cpu_set(current_cpu, mask);
 
     /* wakeup the cpus which have an expired event. */
     evt_do_broadcast(mask);

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