K 10
svn:author
V 4
jeff
K 8
svn:date
V 27
2019-12-15T21:11:15.891725Z
K 7
svn:log
V 400
schedlock 1/4

Eliminate recursion from most thread_lock consumers.  Return from
sched_add() without the thread_lock held.  This eliminates unnecessary
atomics and lock word loads as well as reducing the hold time for
scheduler locks.  This will eventually allow for lockless remote adds.

Discussed with:	kib
Reviewed by:	jhb
Tested by:	pho
Differential Revision:	https://reviews.freebsd.org/D22626

END