Ingo Molnar wrote:
Subject: [patch] KVM, hotplug: export register_cpu_notifier
From: Ingo Molnar <[EMAIL PROTECTED]>
KVM-trunk uses register_cpu_notifier() but it's a module and we only
export this if CONFIG_HOTPLUG_CPU. Export it otherwise too.
Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]>
---
kernel/cpu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux/kernel/cpu.c
===================================================================
--- linux.orig/kernel/cpu.c
+++ linux/kernel/cpu.c
@@ -75,10 +75,10 @@ int __cpuinit register_cpu_notifier(stru
return ret;
}
-#ifdef CONFIG_HOTPLUG_CPU
-
EXPORT_SYMBOL(register_cpu_notifier);
+#ifdef CONFIG_HOTPLUG_CPU
+
void unregister_cpu_notifier(struct notifier_block *nb)
{
mutex_lock(&cpu_add_remove_lock);
This is broken: register_cpu_notifier() is __cpuinit, which means it
disappears at module time if !CONFIG_CPU_HOTPLUG.
I submitted a hackaround to Andrew some time ago with the suspend patchset.
--
Do not meddle in the internals of kernels, for they are subtle and quick to
panic.
-
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