bpf_user_rnd_state 2000 kernel/bpf/core.c static DEFINE_PER_CPU(struct rnd_state, bpf_user_rnd_state); bpf_user_rnd_state 2004 kernel/bpf/core.c prandom_init_once(&bpf_user_rnd_state); bpf_user_rnd_state 2018 kernel/bpf/core.c state = &get_cpu_var(bpf_user_rnd_state); bpf_user_rnd_state 2020 kernel/bpf/core.c put_cpu_var(bpf_user_rnd_state);