K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2020-09-15T22:13:21.220483Z
K 7
svn:log
V 324
Microoptimize tmpfs node ref/unref by using atomics.

Avoid tmpfs mount and node locks when ref count is greater than zero,
which is the case until node is being destroyed by unlink or unmount.

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D26346

END