idr_destroy — release all cached layers within an idr tree
void idr_destroy ( | struct idr * idp); |
Free all id mappings and all idp_layers. After this function, idp is
completely unused and can be freed / recycled. The caller is
responsible for ensuring that no one else accesses idp during or after
idr_destroy.
A typical clean-up sequence for objects stored in an idr tree will use
idr_for_each to free all objects, if necessary, then idr_destroy to
free up the id mappings and cached idr_layers.