From: K. Y. Srinivasan Date: Fri, 15 Mar 2013 19:25:44 +0000 (-0700) Subject: Drivers: hv: vmbus: Handle channel rescind message correctly X-Git-Tag: v3.10-rc1~194^2~110 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c87059793dd02390b504b0292bdb024ffd68b822;p=linux.git Drivers: hv: vmbus: Handle channel rescind message correctly 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 Starting with ws2012, the host requires that the channel "relid" be properly cleaned up when the offer is rescinded.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 Reviewed-by: Haiyang Zhang Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index ff1be167eb04..bad8128b283a 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -165,8 +165,19 @@ static void vmbus_process_rescind_offer(struct work_struct *work) struct vmbus_channel *channel = container_of(work, struct vmbus_channel, work); + unsigned long flags; + struct vmbus_channel_relid_released msg; 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)