tree 3eb8625b5af63e1ad85c2c914db4aedb044a4b65
parent b66a5400fcbb0f6258bbbe0510a6a8b8ff1aac06
author Vishal Verma <vishal.l.verma@intel.com> 1538697332 -0600
committer Vishal Verma <vishal.l.verma@intel.com> 1538759560 -0600

ndctl, monitor: in daemon mode, exit successfully if no DIMMs are found

When we are running as a daemon, it is preferred to exit successfully
when no DIMMs are found. When running in the foreground, retain an error
return so that the user can be notified that nothing was found to
monitor.

In the longer term, replace this with a libudev uevent monitor that will
look for DIMM addition/removal events, and update the running monitor(s)
if the DIMMs match the active filter spec.

Link: https://bugs.launchpad.net/ubuntu/+source/ndctl/+bug/1781268
Reported-by: Andreas Hasenack <andreas@canonical.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: QI Fuli <qi.fuli@jp.fujitsu.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>