netdev - Re: [PATCH net-next 3/5] bpftool: implement cgattach command

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Message-ID: <bf2a8929-8cd6-b6b2-7db8-6debbcfab25e@gmail.com>
Date:   Thu, 30 Nov 2017 09:24:48 -0700
From:   David Ahern <dsahern@...il.com>
To:     Roman Gushchin <guro@...com>, netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, ast@...nel.org,
        daniel@...earbox.net, jakub.kicinski@...ronome.com, kafai@...com
Subject: Re: [PATCH net-next 3/5] bpftool: implement cgattach command

On 11/30/17 6:43 AM, Roman Gushchin wrote:
> +	if (bpf_prog_attach(prog_fd, cgroup_fd, attach_type, 0)) {
> +		bpf_object__close(obj);
> +		close(prog_fd);
> +		close(cgroup_fd);
> +		p_err("Failed to attach program");
> +		return -1;
> +	}


Also, what about support for BPF_F_ALLOW_OVERRIDE and BPF_F_ALLOW_MULTI
flags?