linux-kernel - Re: [PATCH RFC 01/10] rcu: Make CONFIG

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Date:   Wed, 8 Aug 2018 11:05:42 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Kirill Tkhai <ktkhai@...tuozzo.com>
Cc:     akpm@...ux-foundation.org, gregkh@...uxfoundation.org,
        rafael@...nel.org, viro@...iv.linux.org.uk,
        darrick.wong@...cle.com, paulmck@...ux.vnet.ibm.com,
        josh@...htriplett.org, rostedt@...dmis.org,
        mathieu.desnoyers@...icios.com, jiangshanlai@...il.com,
        hughd@...gle.com, shuah@...nel.org, robh@...nel.org,
        ulf.hansson@...aro.org, aspriel@...il.com,
        vivek.gautam@...eaurora.org, robin.murphy@....com, joe@...ches.com,
        heikki.krogerus@...ux.intel.com, vdavydov.dev@...il.com,
        mhocko@...e.com, chris@...is-wilson.co.uk,
        penguin-kernel@...ove.SAKURA.ne.jp, aryabinin@...tuozzo.com,
        willy@...radead.org, ying.huang@...el.com, shakeelb@...gle.com,
        jbacik@...com, mingo@...nel.org, mhiramat@...nel.org,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH RFC 01/10] rcu: Make CONFIG_SRCU unconditionally enabled

Hi Kirill,

On Tue, 07 Aug 2018 18:37:36 +0300 Kirill Tkhai <ktkhai@...tuozzo.com> wrote:
>
> This patch kills all CONFIG_SRCU defines and
> the code under !CONFIG_SRCU.
> 
> Signed-off-by: Kirill Tkhai <ktkhai@...tuozzo.com>
> ---
>  drivers/base/core.c                                |   42 --------------------
>  include/linux/device.h                             |    2 -
>  include/linux/rcutiny.h                            |    4 --
>  include/linux/srcu.h                               |    5 --
>  kernel/notifier.c                                  |    3 -
>  kernel/rcu/Kconfig                                 |   12 +-----
>  kernel/rcu/tree.h                                  |    5 --
>  kernel/rcu/update.c                                |    4 --
>  .../selftests/rcutorture/doc/TREE_RCU-kconfig.txt  |    5 --
>  9 files changed, 3 insertions(+), 79 deletions(-)

You left quite a few "select SRCU" statements scattered across Kconfig
files:

$ git grep -l 'select SRCU' '*Kconfig*'
arch/arm/kvm/Kconfig
arch/arm64/kvm/Kconfig
arch/mips/kvm/Kconfig
arch/powerpc/kvm/Kconfig
arch/s390/kvm/Kconfig
arch/x86/Kconfig
arch/x86/kvm/Kconfig
block/Kconfig
drivers/clk/Kconfig
drivers/cpufreq/Kconfig
drivers/dax/Kconfig
drivers/devfreq/Kconfig
drivers/hwtracing/stm/Kconfig
drivers/md/Kconfig
drivers/net/Kconfig
drivers/opp/Kconfig
fs/btrfs/Kconfig
fs/notify/Kconfig
fs/quota/Kconfig
init/Kconfig
kernel/rcu/Kconfig
kernel/rcu/Kconfig.debug
mm/Kconfig
security/tomoyo/Kconfig

-- 
Cheers,
Stephen Rothwell

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