CVS commit: src/external/cddl/osnet/sys/kern

["Juergen Hannken-Illjes" <hannken%netbsd.org@localhost>]

Module Name:    src
Committed By:   hannken
Date:           Tue Jun 11 09:05:33 UTC 2019

Modified Files:
        src/external/cddl/osnet/sys/kern: taskq.c

Log Message:
There is no 1:1 relation between cv_signal() and cv_timedwait() as
the latter implicitly calls cv_signal() on error.

This leads to "tq_waiting > 0" with "tq_running == 0" and the
taskq stalls.

Change task_executor() to increment and decrement "tq_waiting"
and always check and run the queue after cv_timedwait().

Use mstohz(), fix timeout and sort includes.

Addresses PR port-xen/54273: "zpool create pool xbd2" panics DOMU kernel


To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/external/cddl/osnet/sys/kern/taskq.c

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