K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2015-09-01T13:21:32.417909Z
K 7
svn:log
V 386
Clean up the kqueue use of the uma KPI.

Explain why it is fine to not check for M_NOWAIT failures in
kqueue_register().  Remove unneeded check for NULL result from
waitable allocation in kqueue_scan().  uma_free(9) handles NULL
argument correctly, remove checks for NULL.  Remove useless cast and
adjust style in knote_alloc().

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks

END