K 10
svn:author
V 4
jeff
K 8
svn:date
V 27
2020-02-19T19:58:31.446233Z
K 7
svn:log
V 313
Use SMR to provide a safe unlocked lookup for vm_radix.

The tree is kept correct for readers with store barriers and careful
ordering.  The existing object lock serializes writers.  Consumers
will be introduced in later commits.

Reviewed by:	markj, kib
Differential Revision:	https://reviews.freebsd.org/D23446

END