idr_remove_all — remove all ids from the given idr tree
void idr_remove_all ( | struct idr * idp); |
idr_destroy only frees up unused, cached idp_layers, but this
function will remove all id mappings and leave all idp_layers
unused.
A typical clean-up sequence for objects stored in an idr tree will
use idr_for_each to free all objects, if necessay, then
idr_remove_all to remove all ids, and idr_destroy to free
up the cached idr_layers.