git: kernel - Streamline refcount API

[Matthew Dillon]

commit 0486d94aa7bae282562c0a132d7393ed3e4aa661
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Mon Apr 13 21:47:43 2020 -0700

    kernel - Streamline refcount API
    
    * Streamline the refcount API, with a few provisios, to improve SMP
      performance.

Summary of changes:
 sys/kern/kern_refcount.c | 54 +++++-------------------------------------------
 sys/sys/refcount.h       | 35 +++++++++++++++++++++----------
 2 files changed, 29 insertions(+), 60 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/0486d94aa7bae282562c0a132d7393ed3e4aa661


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