CVSROOT: /cvs
Module name: src
Changes by: chel...@cvs.openbsd.org 2023/04/20 20:41:06
Modified files:
sys/kern : kern_clockintr.c
Log message:
clockintr: add clockqueue_reset_intrclock()
If a call to clockintr_advance(), clockintr_cancel(), or
clockintr_schedule() changes which clockintr on a given queue is
expiring soonest, we need to rearm the queue's intrclock according
to that most imminent expiration.
Add clockqueue_reset_intrclock() and use it during the aforementioned
scheduling operations if the caller is running on the queue's
controlling CPU.
Scheduling operations are not currently run while CQ_INTRCLOCK is set,
so this patch changes no behavior yet.
clockqueue_reset_intrclock() is only part of the story. At some point
we will also need to add IPIs to every architecture to handle the case
when the caller is not running on a queue's controlling CPU.
