Messages in this thread Patch in this message | | | From | Vitaly Kuznetsov <> | Subject | [PATCH v6 1/3] cpu-hotplug: export cpu_hotplug_enable/cpu_hotplug_disable | Date | Fri, 26 Jun 2015 15:27:32 +0200 |
| |
Hyper-V module needs to disable cpu hotplug (offlining) as there is no support from hypervisor side to reassing already opened event channels to a different CPU. Currently it is been done by altering smp_ops.cpu_disable but it is hackish.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> --- kernel/cpu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/cpu.c b/kernel/cpu.c index 94bbe46..dc005e7 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -193,6 +193,7 @@ void cpu_hotplug_disable(void) cpu_hotplug_disabled = 1; cpu_maps_update_done(); } +EXPORT_SYMBOL_GPL(cpu_hotplug_disable); void cpu_hotplug_enable(void) { @@ -200,7 +201,7 @@ void cpu_hotplug_enable(void) cpu_hotplug_disabled = 0; cpu_maps_update_done(); } - +EXPORT_SYMBOL_GPL(cpu_hotplug_enable); #endif /* CONFIG_HOTPLUG_CPU */ /* Need to know about CPUs going up/down? */ -- 2.4.3
| |