linux-kernel - Re: [PATCH v2 0/2] Support cgroup1 in get from fd/file interfaces

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Date:   Tue, 11 Oct 2022 06:51:25 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Yosry Ahmed <yosryahmed@...gle.com>
Cc:     Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Yonghong Song <yhs@...com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <martin.lau@...ux.dev>,
        Song Liu <song@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...nel.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org
Subject: Re: [PATCH v2 0/2] Support cgroup1 in get from fd/file interfaces

On Tue, Oct 11, 2022 at 12:33:57AM +0000, Yosry Ahmed wrote:
> commit f3a2aebdd6fb ("cgroup: enable cgroup_get_from_file() on cgroup1")
> enabled using cgroup_get_from_file() and cgroup_get_from_fd() on
> cgroup1, to enable bpf cgroup_iter to attach to cgroup1.
> 
> Apparently, other callers depended on these functions only supporting
> cgroup2, so f3a2aebdd6 was reverted. Instead, add new separate interfaces
> that support both cgroup1 and cgroup2 and use them in bpf cgroup_iter.

Applied to cgroup/for-6.1-fixes.

Thanks.

-- 
tejun