clockevents: Improve clockevents_notify_released() comment

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When a new clockevent device is added and replaces a previous device,
the latter is put into the released list. Then the released list is
added back.

This may look counter-intuitive but the reason is that released device
might be suitable for other uses. For example a released CPU regular
clockevent can be a better replacement for the current broadcast event.
Similarly a released broadcast clockevent can be a better replacement
for the current regular clockevent of a given CPU.

Improve comments stating about these subtleties.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241029125451.54574-2-frederic@kernel.org

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Frederic Weisbecker 2024-10-29 13:54:42 +01:00 • committed by Thomas Gleixner

parent b35108a51c

commit 17a8945f36

1 changed files with 10 additions and 2 deletions

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kernel/time/clockevents.c

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