linux-kernel - Re: [PATCH v3 bpf-next 00/10] bpf: per-cpu cgroup local storage

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Date:   Thu, 27 Sep 2018 23:13:50 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Roman Gushchin <guro@...com>, netdev@...r.kernel.org
Cc:     Song Liu <songliubraving@...com>, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH v3 bpf-next 00/10] bpf: per-cpu cgroup local storage

On 09/26/2018 01:33 PM, Roman Gushchin wrote:
> This patchset implements per-cpu cgroup local storage and provides
> an example how per-cpu and shared cgroup local storage can be used
> for efficient accounting of network traffic.
> 
> v3->v2:
>   1) incorporated Song's feedback
>   2) rebased on top of current bpf-next
> 
> v2->v1:
>   1) added a selftest implementing network counters
>   2) added a missing free() in cgroup local storage selftest
> 
> Roman Gushchin (10):
>   bpf: extend cgroup bpf core to allow multiple cgroup storage types
>   bpf: rework cgroup storage pointer passing
>   bpf: introduce per-cpu cgroup local storage
>   bpf: don't allow create maps of per-cpu cgroup local storages
>   bpf: sync include/uapi/linux/bpf.h to tools/include/uapi/linux/bpf.h
>   bpftool: add support for PERCPU_CGROUP_STORAGE maps
>   selftests/bpf: add verifier per-cpu cgroup storage tests
>   selftests/bpf: extend the storage test to test per-cpu cgroup storage
>   samples/bpf: extend test_cgrp2_attach2 test to use per-cpu cgroup
>     storage
>   selftests/bpf: cgroup local storage-based network counters
> 
>  include/linux/bpf-cgroup.h                    |  55 ++++--
>  include/linux/bpf.h                           |  12 +-
>  include/linux/bpf_types.h                     |   1 +
>  include/uapi/linux/bpf.h                      |   1 +
>  kernel/bpf/cgroup.c                           |  74 +++++---
>  kernel/bpf/helpers.c                          |  25 ++-
>  kernel/bpf/local_storage.c                    | 167 +++++++++++++++---
>  kernel/bpf/map_in_map.c                       |   3 +-
>  kernel/bpf/syscall.c                          |  20 ++-
>  kernel/bpf/verifier.c                         |  23 ++-
>  net/bpf/test_run.c                            |  20 ++-
>  samples/bpf/test_cgrp2_attach2.c              |  19 +-
>  tools/bpf/bpftool/map.c                       |   4 +-
>  tools/include/uapi/linux/bpf.h                |   1 +
>  tools/testing/selftests/bpf/Makefile          |   6 +-
>  tools/testing/selftests/bpf/netcnt_common.h   |  23 +++
>  tools/testing/selftests/bpf/netcnt_prog.c     |  71 ++++++++
>  .../selftests/bpf/test_cgroup_storage.c       |  60 ++++++-
>  tools/testing/selftests/bpf/test_netcnt.c     | 153 ++++++++++++++++
>  tools/testing/selftests/bpf/test_verifier.c   | 139 ++++++++++++++-
>  20 files changed, 778 insertions(+), 99 deletions(-)
>  create mode 100644 tools/testing/selftests/bpf/netcnt_common.h
>  create mode 100644 tools/testing/selftests/bpf/netcnt_prog.c
>  create mode 100644 tools/testing/selftests/bpf/test_netcnt.c
> 

Applied to bpf-next, thanks Roman!