tree d2456897d486f69412ca3ccb0643b7f51f403c7e
parent 43699ca702068934add136309f28fa427c0d88e6
author Adriana Kobylak <anoo@us.ibm.com> 1541785186 -0600
committer Adriana Kobylak <anoo@us.ibm.com> 1543253398 -0600

sync_watch: Handle IN_IGNORED

When the hostname is updated via systemd, it modifies the /etc/hostname
file in a way that triggers a IN_CLOSE_NOWRITE and IN_IGNORED signal.

 * When IN_IGNORED is received, re-subscribe the file, since it means
   that the inotify watch was removed.

 * A subsequent IN_CLOSE_WRITE signal is received after the re-subscribe
   which takes care of syncing the hostname file.

Tested: The hostname was synced when changed multiple times in a row
using the REST API.

Change-Id: I30abfcdc8b33f77adc6349d345cc957b07898018
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>