svn commit: r334708 - head/sys/kern

[Konstantin Belousov]

On Fri, Jun 08, 2018 at 07:03:04AM +0200, Mateusz Guzik wrote:
> Part of the problem is lack of primitives like READ_ONCE/WRITE_ONCE as
> seen in the linux kernel, someone should hack up equivalents.
Only replying to this statement right now.  What is the semantic of
the _ONCE operations ?  Isn't it the same as atomic_load/store (without
fences) ?