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Date:   Thu, 3 Dec 2020 17:39:22 -0800
From:   Martin KaFai Lau <>
To:     Florent Revest <>
CC:     <>, <>,
        <>, <>, <>,
        <>, <>, <>,
        <>, <>,
        <>, <>
Subject: Re: [PATCH bpf-next v4 5/6] bpf: Add an iterator selftest for

On Wed, Dec 02, 2020 at 09:55:26PM +0100, Florent Revest wrote:
> The eBPF program iterates over all files and tasks. For all socket
> files, it stores the tgid of the last task it encountered with a handle
> to that socket. This is a heuristic for finding the "owner" of a socket
> similar to what's done by lsof, ss, netstat or fuser. Potentially, this
> information could be used from a cgroup_skb/*gress hook to try to
> associate network traffic with processes.
> The test makes sure that a socket it created is tagged with prog_tests's
> pid.
Acked-by: Martin KaFai Lau <>

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