linux-kernel - Re: [PATCH bpf-next v7 0/8] bpf: rstat: cgroup hierarchical stats

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Message-Id: <166006201418.29142.16195047594672738404.git-patchwork-notify@kernel.org>
Date:   Tue, 09 Aug 2022 16:20:14 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Hao Luo <haoluo@...gle.com>
Cc:     linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
        cgroups@...r.kernel.org, netdev@...r.kernel.org, ast@...nel.org,
        andrii@...nel.org, daniel@...earbox.net, martin.lau@...ux.dev,
        song@...nel.org, yhs@...com, tj@...nel.org,
        lizefan.x@...edance.com, kpsingh@...nel.org, hannes@...xchg.org,
        mhocko@...nel.org, benjamin.tissoires@...hat.com,
        john.fastabend@...il.com, mkoutny@...e.com,
        roman.gushchin@...ux.dev, rientjes@...gle.com, sdf@...gle.com,
        shakeelb@...gle.com, yosryahmed@...gle.com
Subject: Re: [PATCH bpf-next v7 0/8] bpf: rstat: cgroup hierarchical stats

Hello:

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

On Fri,  5 Aug 2022 14:48:13 -0700 you wrote:
> This patch series allows for using bpf to collect hierarchical cgroup
> stats efficiently by integrating with the rstat framework. The rstat
> framework provides an efficient way to collect cgroup stats percpu and
> propagate them through the cgroup hierarchy.
> 
> The stats are exposed to userspace in textual form by reading files in
> bpffs, similar to cgroupfs stats by using a cgroup_iter program.
> cgroup_iter is a type of bpf_iter. It walks over cgroups in four modes:
> - walking a cgroup's descendants in pre-order.
> - walking a cgroup's descendants in post-order.
> - walking a cgroup's ancestors.
> - process only a single object.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v7,1/8] btf: Add a new kfunc flag which allows to mark a function to be sleepable
    https://git.kernel.org/bpf/bpf-next/c/fa96b24204af
  - [bpf-next,v7,2/8] cgroup: enable cgroup_get_from_file() on cgroup1
    https://git.kernel.org/bpf/bpf-next/c/f3a2aebdd6fb
  - [bpf-next,v7,3/8] bpf, iter: Fix the condition on p when calling stop.
    https://git.kernel.org/bpf/bpf-next/c/be3bb83dab2d
  - [bpf-next,v7,4/8] bpf: Introduce cgroup iter
    (no matching commit)
  - [bpf-next,v7,5/8] selftests/bpf: Test cgroup_iter.
    (no matching commit)
  - [bpf-next,v7,6/8] cgroup: bpf: enable bpf programs to integrate with rstat
    (no matching commit)
  - [bpf-next,v7,7/8] selftests/bpf: extend cgroup helpers
    (no matching commit)
  - [bpf-next,v7,8/8] selftests/bpf: add a selftest for cgroup hierarchical stats collection
    (no matching commit)

You are awesome, thank you!
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