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Drivers: hv: vmbus: Handle channel rescind message correctly

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Properly cleanup the channel state on receipt of the "offer rescind" message.
Starting with ws2012, the host requires that the channel "relid" be properly
cleaned up when the offer is rescinded.

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>
This commit is contained in:
K. Y. Srinivasan 2013-03-15 12:25:44 -07:00 committed by Greg Kroah-Hartman
parent 1cac8cd4d1
commit c87059793d
1 changed files with 11 additions and 0 deletions
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11
drivers/hv/channel_mgmt.c
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@ -165,8 +165,19 @@ static void vmbus_process_rescind_offer(struct work_struct *work)
struct vmbus_channel *channel = container_of(work, struct vmbus_channel *channel = container_of(work,
struct vmbus_channel, struct vmbus_channel,
work); work);
unsigned long flags;
struct vmbus_channel_relid_released msg;
vmbus_device_unregister(channel->device_obj); vmbus_device_unregister(channel->device_obj);
memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
msg.child_relid = channel->offermsg.child_relid;
msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released));
spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
list_del(&channel->listentry);
spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);
free_channel(channel);
} }
void vmbus_free_channels(void) void vmbus_free_channels(void)