It turns out that the vmbus driver can be made unloadable. Make it unloadable.
Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> --- drivers/hv/channel_mgmt.c | 11 +++++++++++ drivers/hv/hv.c | 3 +++ drivers/hv/hyperv_vmbus.h | 1 + drivers/hv/vmbus_drv.c | 11 +++++++++++ 4 files changed, 26 insertions(+), 0 deletions(-) diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index b91af50..36484db 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -223,6 +223,17 @@ static void vmbus_process_rescind_offer(struct work_struct *work) vmbus_device_unregister(channel->device_obj); } +void vmbus_free_channels(void) +{ + struct vmbus_channel *channel; + + list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) { + vmbus_device_unregister(channel->device_obj); + kfree(channel->device_obj); + free_channel(channel); + } +} + /* * vmbus_process_offer - Process the offer by creating a channel/device * associated with this offer diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index 0fb100e..f8a77d0 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -237,6 +237,9 @@ void hv_cleanup(void) { union hv_x64_msr_hypercall_contents hypercall_msr; + /* Reset our OS id */ + wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0); + kfree(hv_context.signal_event_buffer); hv_context.signal_event_buffer = NULL; hv_context.signal_event_param = NULL; diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index 0aee112..6d7d286 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -611,6 +611,7 @@ void vmbus_device_unregister(struct hv_device *device_obj); struct vmbus_channel *relid2channel(u32 relid); +void vmbus_free_channels(void); /* Connection interface */ diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 0c048dd..aafee6b 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -779,8 +779,19 @@ cleanup: return ret; } +static void __exit vmbus_exit(void) +{ + + free_irq(irq, hv_acpi_dev); + vmbus_free_channels(); + bus_unregister(&hv_bus); + hv_cleanup(); + acpi_bus_unregister_driver(&vmbus_acpi_driver); +} + MODULE_LICENSE("GPL"); MODULE_VERSION(HV_DRV_VERSION); module_init(hv_acpi_init); +module_exit(vmbus_exit); -- 1.7.4.1 _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
