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| author | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2022-05-19 14:02:32 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-05-19 19:25:06 +0200 |
| commit | 13dfd97a341a5cf9d15f415dd469f45e971ef12a (patch) | |
| tree | 956f0adb0fd184cc3fc9ea45e990f47bfccfa56c /kernel/user-return-notifier.c | |
| parent | 42226c989789d8da4af1de0c31070c96726d990c (diff) | |
| download | linux-13dfd97a341a5cf9d15f415dd469f45e971ef12a.tar.gz linux-13dfd97a341a5cf9d15f415dd469f45e971ef12a.tar.bz2 linux-13dfd97a341a5cf9d15f415dd469f45e971ef12a.zip | |
notifier: Add atomic_notifier_call_chain_is_empty()
Add atomic_notifier_call_chain_is_empty() that returns true if given
atomic call chain is empty.
The first user of this new notifier API function will be the kernel
power-off core code that will support power-off call chains. The core
code will need to check whether there is a power-off handler registered
at all in order to decide whether to halt machine or power it off.
Reviewed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/user-return-notifier.c')
0 files changed, 0 insertions, 0 deletions