notifier: Add blocking_notifier_call_chain_is_empty()
authorDmitry Osipenko <digetx@gmail.com>
Sun, 30 Jan 2022 23:36:58 +0000 (02:36 +0300)
committerJens Axboe <axboe@kernel.dk>
Tue, 1 Mar 2022 17:50:01 +0000 (10:50 -0700)
commit98484b6810879de1999eb9b1d1a3b380f91f129f
treeb52a705b715499abe8397862f7e09d4c08b78966
parente6ada6df471f847da3b09b357e246c62335bc0bb
notifier: Add blocking_notifier_call_chain_is_empty()

Add blocking_notifier_call_chain_is_empty() that returns true if call
chain is empty.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
include/linux/notifier.h
kernel/notifier.c