From: Keir Fraser <keir.fraser@citrix.com>
Date: Tue, 18 May 2010 12:41:55 +0000 (+0100)
Subject: cpu hotplug: tasklet and timer initialisation is high priority.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~12129
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=852ed0aaf07ad074ac111b1a432de5b816aad7fd;p=xen.git

cpu hotplug: tasklet and timer initialisation is high priority.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
---

diff --git a/xen/common/tasklet.c b/xen/common/tasklet.c
index 2e23232c41..3dff65074e 100644
--- a/xen/common/tasklet.c
+++ b/xen/common/tasklet.c
@@ -188,7 +188,8 @@ static int cpu_callback(
 }
 
 static struct notifier_block cpu_nfb = {
-    .notifier_call = cpu_callback
+    .notifier_call = cpu_callback,
+    .priority = 99
 };
 
 void __init tasklet_subsys_init(void)
diff --git a/xen/common/timer.c b/xen/common/timer.c
index 0759df818f..57d488ce9a 100644
--- a/xen/common/timer.c
+++ b/xen/common/timer.c
@@ -521,18 +521,29 @@ static int cpu_callback(
     struct notifier_block *nfb, unsigned long action, void *hcpu)
 {
     unsigned int cpu = (unsigned long)hcpu;
+    struct timers *ts = &per_cpu(timers, cpu);
 
-    if ( action == CPU_UP_PREPARE )
+    switch ( action )
     {
-        spin_lock_init(&per_cpu(timers, cpu).lock);
-        per_cpu(timers, cpu).heap = &dummy_heap;
+    case CPU_UP_PREPARE:
+        spin_lock_init(&ts->lock);
+        ts->heap = &dummy_heap;
+        break;
+    case CPU_UP_CANCELED:
+    case CPU_DEAD:
+        /* Enable this later. */
+        /*WARN_ON(GET_HEAP_SIZE(ts->heap) || ts->list);*/
+        break;
+    default:
+        break;
     }
 
     return NOTIFY_DONE;
 }
 
 static struct notifier_block cpu_nfb = {
-    .notifier_call = cpu_callback
+    .notifier_call = cpu_callback,
+    .priority = 99
 };
 
 void __init timer_init(void)