CONFIG_PREEMPT_DYNAMIC=y?

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From	Johannes Schauer Marin Rodrigues <josch@debian.org>
Newsgroups	linux.debian.kernel
Subject	CONFIG_PREEMPT_DYNAMIC=y?
Date	Sun, 08 Oct 2023 18:30:01 +0200
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Hi,

I'm wondering whether it'd make sense for the Debian kernel to be built with
CONFIG_PREEMPT_DYNAMIC=y. Sorry if I have missed existing discussion on that
topic but I haven't found any.

Context: I'm maintaining a fork of the Debian linux kernel (thank you so much
for your amazing work!) with a couple of patches and config options on top so
that the Debian kernel can work on the imx8mq, imx8mplus, bananapi a311d and
ls1028 SoM for the MNT Reform open source laptop. A user suggested that we also
enable PREEMPT_DYNAMIC for our custom kernel builds:

https://source.mnt.re/reform/reform-debian-packages/-/merge_requests/18

I do not have enough insight to make this choice and was wondering whether it
would make sense for the Debian kernel to be built with that option enabled?
And if not: why is it not done? As far as I understand its documentation, the
option is meant for distros to enable it so that users can choose at boot-time
instead of at compile time preempt=none, voluntary or full.

Thanks!

cheers, josch

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Thread

CONFIG_PREEMPT_DYNAMIC=y? Johannes Schauer Marin Rodrigues <josch@debian.org> - 2023-10-08 18:30 +0200
  Re: CONFIG_PREEMPT_DYNAMIC=y? Diederik de Haas <didi.debian@cknow.org> - 2023-10-08 19:30 +0200
    Re: CONFIG_PREEMPT_DYNAMIC=y? Emanuele Rocca <ema@debian.org> - 2023-10-10 12:10 +0200
      Re: CONFIG_PREEMPT_DYNAMIC=y? Johannes Schauer Marin Rodrigues <josch@debian.org> - 2023-10-10 12:20 +0200
        Re: CONFIG_PREEMPT_DYNAMIC=y? Emanuele Rocca <ema@debian.org> - 2023-10-10 12:40 +0200
          Re: CONFIG_PREEMPT_DYNAMIC=y? Marc Haber <mh+debian-kernel@zugschlus.de> - 2023-10-10 15:50 +0200
      Re: CONFIG_PREEMPT_DYNAMIC=y? Diederik de Haas <didi.debian@cknow.org> - 2023-10-10 14:00 +0200
        Re: CONFIG_PREEMPT_DYNAMIC=y? Vincent Blut <vincent.debian@free.fr> - 2023-10-10 14:20 +0200
          Re: CONFIG_PREEMPT_DYNAMIC=y? Diederik de Haas <didi.debian@cknow.org> - 2023-10-10 15:20 +0200
        Re: CONFIG_PREEMPT_DYNAMIC=y? Emanuele Rocca <ema@debian.org> - 2023-10-10 15:00 +0200
          Re: CONFIG_PREEMPT_DYNAMIC=y? Diederik de Haas <didi.debian@cknow.org> - 2023-10-10 23:30 +0200
            Re: CONFIG_PREEMPT_DYNAMIC=y? Diederik de Haas <didi.debian@cknow.org> - 2023-10-17 20:00 +0200
  Re: CONFIG_PREEMPT_DYNAMIC=y? Emanuele Rocca <ema@debian.org> - 2023-10-20 20:40 +0200

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