[PATCH v4 0/1] Documentation: Add real-time kernel configuration guide

From: Ahmed S. Darwish

Date: Thu Jul 16 2026 - 15:57:36 EST


Hi,

There is a no "one size fits all" solution for configuring a PREEMPT_RT
kernel.

Intorduce a PREEMPT_RT kernel configuration guide to better help system
developers and integrators.

Changelog v4
------------

Handle Sashiko review: Remove a no-longer-referenced link. Remove
CONFIG_WQ_SYS reference, which I thought it exists due to a quick
misunderstanding of core-api/workqueue.

Changelog v3
------------

CONFIG_EFI_DISABLE_RUNTIME: Mention that system integrators can now assign
the efi_runtime workqueue CPU affinity, then safely pin RT tasks on a
different CPU range.

Changelog v2
------------

https://msgid.link/20260414174159.1271171-1-darwi@xxxxxxxxxxxxx

Handle Rostedt remarks:

- Better reword certain paragraphs and statements
- Warn about enabling CONFIG_IRQSOFF_TRACER and CONFIG_PREEMPT_TRACER

Handle Wilcox remarks:

- Remove ToC comment + minor rewording

Changelog v1
------------

https://msgid.link/20260305205023.361530-1-darwi@xxxxxxxxxxxxx

Thanks,

8<-----

Ahmed S. Darwish (1):
Documentation: real-time: Add kernel configuration guide

Documentation/core-api/real-time/index.rst | 1 +
.../real-time/kernel-configuration.rst | 310 ++++++++++++++++++
2 files changed, 311 insertions(+)
create mode 100644 Documentation/core-api/real-time/kernel-configuration.rst

base-commit: a13c140cc289c0b7b3770bce5b3ad42ab35074aa
--
2.54.0