CVS commit: src

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Tue Sep  8 17:02:18 UTC 2020

Modified Files:
        src/share/man/man9: workqueue.9
        src/sys/kern: subr_workqueue.c

Log Message:
workqueue: Lift unnecessary restriction on workqueue_wait.

Allow multiple concurrent waits at a time, and allow enqueueing work
at the same time (as long as it's not the work we're waiting for).
This way multiple users can use a shared global workqueue and safely
wait for individual work items concurrently, while the workqueue is
still in use for other items (e.g., wg(4) peers).

This has the side effect of taking away a diagnostic measure, but I
think allowing the diagnostic's false positives instead of rejecting
them is worth it.  We could cheaply add it back with some false
negatives if it's important.


To generate a diff of this commit:
cvs rdiff -u -r1.14 -r1.15 src/share/man/man9/workqueue.9
cvs rdiff -u -r1.38 -r1.39 src/sys/kern/subr_workqueue.c

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