On Tue, 15 Jan 2019, Miroslav Benes wrote: > An administrator may send a fake signal to all remaining blocking tasks > of a running transition by writing to > /sys/kernel/livepatch/<patch>/signal attribute. Let's do it > automatically after 15 seconds. The timeout is chosen deliberately. It > gives the tasks enough time to transition themselves. > > Theoretically, sending it once should be more than enough. However, > every task must get outside of a patched function to be successfully > transitioned. It could prove not to be simple and resending could be > helpful in that case. > > A new workqueue job could be a cleaner solution to achieve it, but it > could also introduce deadlocks and cause more headaches with > synchronization and cancelling. > > Signed-off-by: Miroslav Benes <mbenes@xxxxxxx> [ ... snip ... ] > @@ -400,6 +408,7 @@ void klp_try_complete_transition(void) > */ > schedule_delayed_work(&klp_transition_work, > round_jiffies_relative(HZ)); > + > return; > } I somehow didn't like the newly added newline here :) so I've removed it, and applied both patches to for-5.1/fake-signal. Thanks, -- Jiri Kosina SUSE Labs
