[PATCH 0/2] xenbus: Fix S3 frontend resume when xenstored is not running

[Aurelien Chartier <aurelien.chartier@citrix.com>]

Hi,

This patch series fixes the S3 resume of dom0 or a Xenstore stub domain
running a frontend over xenbus (xen-netfront in my use case).

As device resume is happening before process resume, the xenbus frontend
resume is hanging if xenstored is not running, thus causing a deadlock.
This patch series is fixing that issue by bypassing the xenbus frontend
resume when we are running in dom0 or a Xenstore stub domain.

Aurelien Chartier (2):
  xenbus: save xenstore local status for later use
  xenbus: bypass xenbus frontend resume if xenstored is not running

 drivers/xen/xenbus/xenbus_comms.h          |    1 +
 drivers/xen/xenbus/xenbus_probe.c          |   27 ++++++++++++---------------
 drivers/xen/xenbus/xenbus_probe.h          |    7 +++++++
 drivers/xen/xenbus/xenbus_probe_frontend.c |   15 ++++++++++++++-
 4 files changed, 34 insertions(+), 16 deletions(-)