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authorK. Y. Srinivasan <kys@microsoft.com>2013-03-15 12:25:42 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-15 12:11:50 -0700
commit0cf40a3e661b09c0dda795a77ccc0402c3153859 (patch)
tree46c78769fb68002e55863bcd5176fcf35722eb9e /drivers/hv
parentc51af826cf062af3c49a99a05a33236d93c57e72 (diff)
Drivers: hv: balloon: Make the balloon driver not unloadable
The balloon driver is stateful. For instance, it needs to keep track of pages that have been ballooned out to properly post pressure reports. This state cannot be re-constructed if the driver were to be unloaded and subsequently loaded. Furthermore, as we support memory hot-add as part of this driver, this driver becomes even more stateful and this state cannot be re-created. Make the balloon driver unloadable to deal with this issue. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hv_balloon.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c
index 13fda3807bfb..4743db9e5f34 100644
--- a/drivers/hv/hv_balloon.c
+++ b/drivers/hv/hv_balloon.c
@@ -1096,14 +1096,7 @@ static int __init init_balloon_drv(void)
return vmbus_driver_register(&balloon_drv);
}
-static void exit_balloon_drv(void)
-{
-
- vmbus_driver_unregister(&balloon_drv);
-}
-
module_init(init_balloon_drv);
-module_exit(exit_balloon_drv);
MODULE_DESCRIPTION("Hyper-V Balloon");
MODULE_VERSION(HV_DRV_VERSION);

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