hyperv_mmio_lock 110 drivers/hv/vmbus_drv.c static DEFINE_SEMAPHORE(hyperv_mmio_lock); hyperv_mmio_lock 2062 drivers/hv/vmbus_drv.c down(&hyperv_mmio_lock); hyperv_mmio_lock 2109 drivers/hv/vmbus_drv.c up(&hyperv_mmio_lock); hyperv_mmio_lock 2126 drivers/hv/vmbus_drv.c down(&hyperv_mmio_lock); hyperv_mmio_lock 2134 drivers/hv/vmbus_drv.c up(&hyperv_mmio_lock);