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Darwish" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1785852946; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=15vnxRschpsYFHx4zEsIj6+uMHXtX6Eyfofh2Bn83U4=; b=t6NWS35dEhlKOVZAfWparVs5a+/4fQneCsE7/CPOcafr01SAShg5Nfxiw8h0t2xoCsCyZC QElrvCFV6hxHDYMbs9pFrlgCcexCXQ7vz7GznuTIJy4nCvQGJq7qIKctkNxA7091MzfhGm MNu3M7G47n/JHhxJrTPTyEpY2DDU2iRHZbW9fpV+dGaz3qP/bCbq0h98F9WeZNea9hneQc xvJJZvGq2Ivk5gpizD3ftGbFqBpIhfAA5plF8rv+n8Egynmc37IISHGKRQUG+iZ8YYy63B 8+ZydjP6PJZhKATmeNneGFbUxePkpEfxXGfZakvqsDMoV2ZurxlAGYIvQX9bjQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1785852946; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=15vnxRschpsYFHx4zEsIj6+uMHXtX6Eyfofh2Bn83U4=; b=PjLWKdt3/tRVjplT/mBLuc4NqlwuLPkboFF1ew3bz2M6ENSPSWVmjOAKg/VzNDO+0+gO+i L6Lyg3UETKRZ5GBA== To: Jonathan Corbet , Clark Williams , Steven Rostedt , linux-rt-devel@lists.linux.dev Cc: "Rafael J. Wysocki" , Matthew Wilcox , Sebastian Andrzej Siewior , John Ogness , Derek Barbosa , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, "Ahmed S. Darwish" Subject: [PATCH v6 0/1] Documentation: Add real-time kernel configuration guide Date: Tue, 4 Aug 2026 16:15:39 +0200 Message-ID: <20260804141541.747704-1-darwi@linutronix.de> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 v6 ------------ Handle Sashiko review; minor typographical issue. Changelog v5 ------------ https://msgid.link/20260804133746.744212-1-darwi@linutronix.de Handle Sebastian remarks: - Reference other documents as Jonathan prefers; i.e., no :doc: tags. - Coalesce the CPU frequency governors text, and the tracing text. - Add might_sleep() note to CONFIG_DEBUG_ATOMIC_SLEEP. - Mention debugfs only as "allowed". - Mention CONFIG_DEBUG_BUGVERBOSE. - Do not mention DEBUG_INFO as it's not selectable; mention the CONFIG_DEBUG_INFO* selectable variants. Changelog v4 ------------ https://msgid.link/20260716195716.256025-1-darwi@linutronix.de 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 ------------ https://msgid.link/20260715150147.225715-1-darwi@linutronix.de 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. This is due to: https://msgid.link/20260227170103.4042157-1-bigeasy@linutronix.de now being merged mainline. Changelog v2 ------------ https://msgid.link/20260414174159.1271171-1-darwi@linutronix.de 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@linutronix.de 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 | 307 ++++++++++++++++++ 2 files changed, 308 insertions(+) create mode 100644 Documentation/core-api/real-time/kernel-configuration.rst base-commit: 075b74841bd0065a3bda3440873c747938e69b68 -- 2.55.0