On Tue, Oct 22, 2024 at 11:33 PM Danilo Krummrich <dakr@xxxxxxxxxx> wrote: > > Add a Rust abstraction for the kernel's devres (device resource > management) implementation. > > The Devres type acts as a container to manage the lifetime and > accessibility of device bound resources. Therefore it registers a > devres callback and revokes access to the resource on invocation. > > Users of the Devres abstraction can simply free the corresponding > resources in their Drop implementation, which is invoked when either the > Devres instance goes out of scope or the devres callback leads to the > resource being revoked, which implies a call to drop_in_place(). > > Signed-off-by: Danilo Krummrich <dakr@xxxxxxxxxx> How is this intended to be used? Every single field I add of this type is going to result in an additional synchronize_rcu() call in my destructor. Those calls are pretty expensive. Alice
