netdev - Re: [PATCH bpf-next v4 1/2] bpf: Add bpf_task_under

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Message-ID: <4325c18b-9470-8b4a-d62c-a4efe0da5b7e@meta.com>
Date:   Fri, 28 Apr 2023 09:24:28 -0700
From:   Yonghong Song <yhs@...a.com>
To:     Feng zhou <zhoufeng.zf@...edance.com>, martin.lau@...ux.dev,
        ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        song@...nel.org, yhs@...com, john.fastabend@...il.com,
        kpsingh@...nel.org, sdf@...gle.com, haoluo@...gle.com,
        jolsa@...nel.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, mykolal@...com,
        shuah@...nel.org
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
        yangzhenze@...edance.com, wangdongdong.6@...edance.com
Subject: Re: [PATCH bpf-next v4 1/2] bpf: Add bpf_task_under_cgroup() kfunc



On 4/28/23 12:17 AM, Feng zhou wrote:
> From: Feng Zhou <zhoufeng.zf@...edance.com>
> 
> Add a kfunc that's similar to the bpf_current_task_under_cgroup.
> The difference is that it is a designated task.
> 
> When hook sched related functions, sometimes it is necessary to
> specify a task instead of the current task.
> 
> Signed-off-by: Feng Zhou <zhoufeng.zf@...edance.com>
Acked-by: Yonghong Song <yhs@...com>