On Mon, Mar 25, 2024 at 01:23 PM +01, Jakub Sitnicki wrote: [...] > But we also need to cover sock_map_unref->sock_sock_map_del_link called > from sock_hash_delete_elem. It also grabs a spin lock. On second look, no need to disable interrupts in sock_map_unref->sock_sock_map_del_link. Call is enclosed in the critical section in sock_hash_delete_elem that has been updated. I have a question, though, why are we patching sock_hash_free? It doesn't get called unless there are no more existing users of the BPF map. So nothing can mutate it from interrupt context. [...]
