linux-kernel - Re: [PATCH bpf-next 0/2] Add kfunc for doing pid -> task lookup

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Date:   Thu, 24 Nov 2022 02:10:15 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     David Vernet <void@...ifault.com>
Cc:     bpf@...r.kernel.org, ast@...nel.org, andrii@...nel.org,
        daniel@...earbox.net, martin.lau@...ux.dev, yhs@...com,
        song@...nel.org, sdf@...gle.com, john.fastabend@...il.com,
        kpsingh@...nel.org, jolsa@...nel.org, haoluo@...gle.com,
        tj@...nel.org, kernel-team@...com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next 0/2] Add kfunc for doing pid -> task lookup

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@...nel.org>:

On Tue, 22 Nov 2022 08:52:58 -0600 you wrote:
> A series of prior patches added support for storing struct task_struct *
> objects as kptrs. This patch set proposes extending this with another
> kfunc called bpf_task_from_pid() which performs a lookup of a task from
> its pid, from the root pid namespace idr.
> 
> This allows BPF programs that don't have a kptr to a task, to instead
> perform a lookup by pid. This will be useful for programs that are
> tracking pids and want, e.g., to do a lookup to find task->comm.
> 
> [...]

Here is the summary with links:
  - [bpf-next,1/2] bpf: Add bpf_task_from_pid() kfunc
    https://git.kernel.org/bpf/bpf-next/c/3f0e6f2b41d3
  - [bpf-next,2/2] selftests/bpf: Add selftests for bpf_task_from_pid()
    https://git.kernel.org/bpf/bpf-next/c/f471748b7fe5

You are awesome, thank you!
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