There is no guarantee that the next entry on the ddelete list stays on
the list when we drop the locks.

Completely rework this mess by moving processed entries on a temporary
list.
Signed-off-by: NChristian König <christian.koenig@amd.com>
Reviewed-and-Tested-by: NMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>