linux-kernel - Re: [PATCH v9 0/5] use bin_attribute to break the size limitation of cpumap ABI

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Date:   Thu, 12 Aug 2021 16:44:26 +1200
From:   Barry Song <21cnbao@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     song.bao.hua@...ilicon.com, agordeev@...ux.ibm.com,
        akpm@...ux-foundation.org, andriy.shevchenko@...ux.intel.com,
        bristot@...hat.com, dave.hansen@...el.com, guodong.xu@...aro.org,
        jianpeng.ma@...el.com, linux-kernel@...r.kernel.org,
        linux@...musvillemoes.dk, linuxarm@...wei.com,
        peterz@...radead.org, prime.zeng@...ilicon.com, rafael@...nel.org,
        rdunlap@...radead.org, sbrivio@...hat.com,
        tangchengchang@...wei.com, tim.c.chen@...ux.intel.com,
        valentin.schneider@....com, yangyicong@...wei.com,
        yury.norov@...il.com
Subject: Re: [PATCH v9 0/5] use bin_attribute to break the size limitation of cpumap ABI

> V9:
>   - Split bitmask and list APIs and removed bool parameter with respect to
>     Greg's comment
>   - Removed duplication in code doc
>
...
>
> Background:
>
> the whole story began from this thread when Jonatah and me tried to add a
> new topology level-cluster which exists on kunpeng920 and X86 Jacobsville:
> https://lore.kernel.org/lkml/YFRGIedW1fUlnmi+@kroah.com/
> https://lore.kernel.org/lkml/YFR2kwakbcGiI37w@kroah.com/
>

Hi Greg,
Will you take this series so that I can rebase the cluster-scheduler series[1] on top of
this? that cluster series is where this ABI series really get started. I am looking forward
to sending a normal patchset for cluster series after this ABI series settles down.

[1] scheduler: expose the topology of clusters and add cluster scheduler
https://lore.kernel.org/lkml/20210420001844.9116-1-song.bao.hua@hisilicon.com/

>
> Barry Song (1):
>   lib: test_bitmap: add bitmap_print_bitmask/list_to_buf test cases
>
> Tian Tao (3):
>   cpumask: introduce cpumap_print_list/bitmask_to_buf to support large
>     bitmask and list
>   topology: use bin_attribute to break the size limitation of cpumap ABI
>   drivers/base/node.c: use bin_attribute to break the size limitation of
>     cpumap ABI
>
> Yury Norov (1):
>   bitmap: extend comment to bitmap_print_bitmask/list_to_buf
>
>  drivers/base/node.c     |  63 +++++++++++------
>  drivers/base/topology.c | 115 ++++++++++++++++--------------
>  include/linux/bitmap.h  |   6 ++
>  include/linux/cpumask.h |  38 ++++++++++
>  lib/bitmap.c            | 121 ++++++++++++++++++++++++++++++++
>  lib/test_bitmap.c       | 150 ++++++++++++++++++++++++++++++++++++++++
>  6 files changed, 418 insertions(+), 75 deletions(-)
>
> --
> 2.25.1

Thanks
Barry