Re: [PATCH v9 perf,bpf 08/15] perf, bpf: save btf in a rbtree in perf_env

[Arnaldo Carvalho de Melo]

Em Mon, Mar 11, 2019 at 10:30:44PM -0700, Song Liu escreveu:
>  static void perf_env__purge_bpf(struct perf_env *env)
>  {
> @@ -83,6 +135,19 @@ static void perf_env__purge_bpf(struct perf_env *env)
>  		rb_erase(&node->rb_node, root);
>  		free(node);
>  	}
> +
> +	root = &env->bpf_progs.btfs;
> +	next = rb_first(root);
> +
> +	while (next) {
> +		struct btf_node *node;
> +
> +		node = rb_entry(next, struct btf_node, rb_node);
> +		next = rb_next(&node->rb_node);
> +		rb_erase(&node->rb_node, root);
> +		free(node);
> +	}

Added this as well:

	env->bpf_progs.btfs_cnt = 0;

> +
>  	up_write(&env->bpf_progs.lock);
>  }