CVS commit: src/sys

["Andrew Doran" <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Sun Jan 19 18:34:24 UTC 2020

Modified Files:
        src/sys/kern: kern_rwlock.c
        src/sys/sys: rwlock.h

Log Message:
Tidy rwlocks a bit, no functional change intended.  Mainly:

- rw_downgrade(): do it in a for () loop like all the others.
- Explicitly carry around RW_NODEBUG - don't be lazy.
- Remove pointless macros.
- Don't make assertions conditional on LOCKDEBUG, there's no reason.
- Make space for a new flag bit (not added yet).


To generate a diff of this commit:
cvs rdiff -u -r1.60 -r1.61 src/sys/kern/kern_rwlock.c
cvs rdiff -u -r1.12 -r1.13 src/sys/sys/rwlock.h

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