This series addresses two issues:
- There is no timeout when communicating with userspace VSS daemon.
- In case we fail to send a message to VSS or KVP userspace daemons we
can report the failure to the host right away avoiding the timeout.
Newly introduced 10 second timeout is something worth discussing. In theory
freeze/thaw
ioctls should be fast. In case someone thinks 10 seconds is not enough we can
easily
increase it as we cover the most common failure scenario (when the daemon was
stopped)
with the second patch of this series.
Vitaly Kuznetsov (2):
Drivers: hv: vss: Introduce timeout for communication with userspace
Drivers: hv: kvp,vss: Fast propagation of userspace communication
failure
drivers/hv/hv_kvp.c | 9 ++++++++-
drivers/hv/hv_snapshot.c | 28 +++++++++++++++++++++++++---
2 files changed, 33 insertions(+), 4 deletions(-)
--
1.9.3
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