CVS commit: src/sys/kern

["Michael van Elst" <mlelstv%netbsd.org@localhost>]

Module Name:    src
Committed By:   mlelstv
Date:           Fri Nov 30 15:05:35 UTC 2018

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

Log Message:
The SHOULDYIELD flag doesn't indicate that other LWPs could run but only
that the current LWP was seen on two consecutive scheduler intervals.

There are currently at least 3 cases for calling preempt().
- always call preempt()
- check the SHOULDYIELD flag
- check the real ci_want_resched

So the forced check for SHOULDYIELD changed the scheduler timing. Revert
it for now.


To generate a diff of this commit:
cvs rdiff -u -r1.321 -r1.322 src/sys/kern/kern_synch.c

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