K 10
svn:author
V 4
manu
K 8
svn:date
V 27
2020-05-25T12:44:07.474545Z
K 7
svn:log
V 268
linuxkpi: Add refcount.h

Implement some refcount functions needed by drm.
Just use the atomic_t struct and functions from linuxkpi for simplicity.

Sponsored-by: The FreeBSD Foundation

Reviewed by:	hselsasky
Differential Revision:	https://reviews.freebsd.org/D24985

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