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authorK. Y. Srinivasan <kys@microsoft.com>2013-03-15 12:25:44 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-15 12:11:51 -0700
commitc87059793dd02390b504b0292bdb024ffd68b822 (patch)
tree60c359bbb8d53947b92c322c2a9b88595b6320f2
parent1cac8cd4d146b60a7c70d778b5be928281b3b551 (diff)
downloadop-kernel-dev-c87059793dd02390b504b0292bdb024ffd68b822.zip
op-kernel-dev-c87059793dd02390b504b0292bdb024ffd68b822.tar.gz
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 Starting with ws2012, the host requires that the channel "relid" be properly cleaned up when the offer is rescinded.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 <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hv/channel_mgmt.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index ff1be16..bad8128 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)
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