Comment 353 for bug 1470250

For those interested, the Trusty test kernel contains the following commits:

e81d871 UBUNTU: SAUCE: (no-up) Tools: hv: vss: Thaw the filesystem and continue after freeze fails
01032c1 UBUNTU: SAUCE: (no-up) Drivers: hv: vss: Operation timeouts should match host expectation
4a6f680 Drivers: hv: utils: Continue to poll VSS channel after handling requests.
61c18ef Drivers: hv: kvp: fix IP Failover
db70a1c Drivers: hv: utils: Invoke the poll function after handshake
3c8486d Drivers: hv: utils: run polling callback always in interrupt context
e6e9811 Drivers: hv: fcopy: full handshake support
8f0d521 Drivers: hv: vss: full handshake support
8b167aa Tools: hv: vss: use misc char device to communicate with kernel
6712c24 Drivers: hv: kvp: convert to hv_utils_transport
e5bd829 Drivers: hv: fcopy: convert to hv_utils_transport
9ec74ad Drivers: hv: vss: convert to hv_utils_transport
a2adece Drivers: hv: util: introduce hv_utils_transport abstraction
7aa0716 Drivers: hv: fcopy: switch to using the hvutil_device_state state machine
d804513 Drivers: hv: vss: switch to using the hvutil_device_state state machine
5c9bfa1 Drivers: hv: kvp: switch to using the hvutil_device_state state machine
11aef70 Drivers: hv: fcopy: rename fcopy_work -> fcopy_timeout_work
742f132 Drivers: hv: kvp: rename kvp_work -> kvp_timeout_work
a5a8e26 Drivers: hv: kvp,vss: Fast propagation of userspace communication failure
77fbf9a Drivers: hv: vss: Introduce timeout for communication with userspace
d1401e0 Tools: hv: vssdaemon: ignore the EBUSY on multiple freezing the same partition
fcee4902 connector: add portid to unicast in addition to broadcasting