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Fix typo "excpetion" with "exception".
Signed-off-by: Sukrut Heroorkar <hsukrut3@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260411155120.233357-1-hsukrut3@gmail.com>
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Fix the following typos and duplicated words:
- admin-guide/pm/intel-speed-select.rst: "weather" -> "whether"
- core-api/real-time/differences.rst: "the the" -> "the"
- admin-guide/bcache.rst: "to to" -> "to"
Signed-off-by: Manuel Cortez <mdjesuscv@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260406030323.1196-1-mdjesuscv@gmail.com>
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Commit 4843a45ef9fe8 ("entry: Rename "kvm" entry code assets to "virt"
to genericize APIs") renames the config KVM_XFER_TO_GUEST_WORK to
VIRT_XFER_TO_GUEST_WORK.
Adjust the documentation to the current situation, and specifically
refer to the new name of the config.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251127154343.292156-3-bigeasy@linutronix.de>
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Some thoughts on hardware that is used for real-time workload. Certainly
not complete but should cover some of the import topics such as:
- Main memory, caches and the possiblie control given by the hardware.
- What could happen by putting critical hardware behind USB or VirtIO.
- Allowing real-time tasks to consume the CPU entirely without giving
the system some time to breath.
- Networking with what the kernel provides.
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20251127154343.292156-2-bigeasy@linutronix.de>
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The documents explain the design concepts behind PREEMPT_RT and highlight key
differences necessary to achieve it.
It also include a list of requirements that must be fulfilled to support
PREEMPT_RT on a given architecture.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
[jc: tweaked "how they differ" section head]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250815093858.930751-4-bigeasy@linutronix.de
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