dsync: Added support back for dsync locking. Only the source directory is now locked to avoid deadlocks when both source and destination are locked. This of course now means that both source and destination is allowed to run dsync at the same time, which isn't ideal either..
dsync: Added support back for dsync locking.
Only the source directory is now locked to avoid deadlocks when both source
and destination are locked. This of course now means that both source and
destination is allowed to run dsync at the same time, which isn't ideal
either..

damoxc/dovecot,damoxc/dovecot,damoxc/dovecot,damoxc/dovecot,damoxc/dovecot