CVS commit: src/sys/kern

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Sun Sep 26 23:34:46 UTC 2021

Modified Files:
        src/sys/kern: kern_event.c

Log Message:
- Rename kqueue_misc_lock -> kqueue_timer_lock, since EVFILT_TIMER is
  now its only user.  Also initialize it as IPL_SOFTCLOCK; there is no
  practical difference in how it operates (it is still an adaptive lock),
  but this serves as a visual reminder that we are interlocking against
  a callout.
- Add some comments that describe why we don't need to hold kqueue_timer_lock
  when detaching an EVFILT_TIMER due to guarantees made by callout_halt().
- Mark timer_filtops as MPSAFE.


To generate a diff of this commit:
cvs rdiff -u -r1.124 -r1.125 src/sys/kern/kern_event.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.