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Date:   Tue, 12 Mar 2019 12:00:24 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Song Liu <songliubraving@...com>
Cc:     bpf@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, ast@...nel.org, daniel@...earbox.net,
        kernel-team@...com, peterz@...radead.org, acme@...hat.com,
        jolsa@...nel.org, namhyung@...nel.org, sdf@...ichev.me
Subject: Re: [PATCH v9 perf,bpf 08/15] perf, bpf: save btf in a rbtree in
 perf_env

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);
>  }

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