K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2020-09-15T19:21:58.283781Z
K 7
svn:log
V 391
Improve unix socket PCB refcounting.

- Use refcount_init().
- Define an INVARIANTS-only zone destructor to assert that various
  bits of PCB state aren't left dangling.
- Annotate unp_pcb_rele() with __result_use_check.
- Simplify control flow.

Reviewed by:	glebius, kevans, kib
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D26295

END