Re: [ANNOUNCE] 3.2.9-rt15

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Please fold this change into


As the patch was never tested (nor even compiled) it introduced a nasty
bug into taking a CPU down instead of fixing one.


-- Steve

diff --git a/kernel/cpu.c b/kernel/cpu.c
index c25b5ff..66dfb74 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -59,16 +59,20 @@ static struct {
 	int refcount;
 } cpu_hotplug = {
 	.active_writer = NULL,
+	.lock = __SPIN_LOCK_UNLOCKED(cpu_hotplug.lock),
 	.lock = __MUTEX_INITIALIZER(cpu_hotplug.lock),
 	.refcount = 0,
-# define hotplug_lock() spin_lock(&cpu_hotplug.lock)
-# define hotplug_unlock() spin_unlock(&cpu_hotplug.lock)
+# define hotplug_lock() rt_spin_lock(&cpu_hotplug.lock)
+# define hotplug_unlock() rt_spin_unlock(&cpu_hotplug.lock)
 # define hotplug_lock() mutex_lock(&cpu_hotplug.lock)
-# define hotplug_lock() mutex_unlock(&cpu_hotplug.lock)
+# define hotplug_unlock() mutex_unlock(&cpu_hotplug.lock)
 struct hotplug_pcp {

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