Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.debian.kernel > #80640
| From | Vincent Blut <vincent.debian@free.fr> |
|---|---|
| Newsgroups | linux.debian.kernel |
| Subject | Re: CONFIG_PREEMPT_DYNAMIC=y? |
| Date | 2023-10-10 14:20 +0200 |
| Message-ID | <HnjSp-eRSW-1@gated-at.bofh.it> (permalink) |
| References | <HmEPf-eqdx-7@gated-at.bofh.it> <HmFLj-eqM9-7@gated-at.bofh.it> <HnhQB-eQol-7@gated-at.bofh.it> <Hnjz3-eRsk-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
[Multipart message — attachments visible in raw view] - view raw
Hi,
Le 2023-10-10 13:54, Diederik de Haas a écrit :
> On Tuesday, 10 October 2023 12:10:07 CEST Emanuele Rocca wrote:
> > CONFIG_PREEMPT_DYNAMIC is set to 'y' by default on amd64 due to
> > HAVE_PREEMPT_DYNAMIC_CALL being 'y', see:
> > https://sources.debian.org/src/linux/6.5.6-1/kernel/Kconfig.preempt/?hl=101#
> > L101
> >
> > arm64 does not have PREEMPT_DYNAMIC_CALL, this is why PREEMPT_DYNAMIC is
> > not set by default there.
>
> Neither does amd64. So it appears something else is causing
> CONFIG_PREEMPT_DYNAMIC to be enabled on amd64.
From the commit message introducing PREEMPT_DYNAMIC:¹
CONFIG_PREEMPT_DYNAMIC is automatically selected by CONFIG_PREEMPT if
the architecture provides the necessary support (CONFIG_STATIC_CALL_INLINE,
CONFIG_GENERIC_ENTRY, and provide with __preempt_schedule_function() /
__preempt_schedule_notrace_function()).
Cheers,
Vincent
¹ https://lore.kernel.org/all/20210118141223.123667-5-frederic@kernel.org/T/#u
Back to linux.debian.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll 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
csiph-web