PM: hibernate: add configurable delay for pm_test

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Turn the default 5 second test delay for hibernation into a
configurable module parameter, so users can determine how
long to wait in this pseudo-hibernate state before resuming
the system.

The configurable delay parameter has been added for suspend, so
add an analogous one for hibernation.

Example (wait 30 seconds);

  # echo 30 > /sys/module/hibernate/parameters/pm_test_delay
  # echo core > /sys/power/pm_test

Signed-off-by: Zihuan Zhang <zhangzihuan@kylinos.cn>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20250507063520.419635-1-zhangzihuan@kylinos.cn
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Zihuan Zhang 2025-05-07 14:35:20 +08:00 • committed by Rafael J. Wysocki

parent f0050a3e21

commit 50c9bb30dc

2 changed files with 14 additions and 2 deletions

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7

Documentation/admin-guide/kernel-parameters.txt

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9

kernel/power/hibernate.c

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