review D18906

[Mark Johnston]

Hi,

It seems Phabricator's mail delivery isn't working at the moment, hence
this email.  There's a race in the LLE code, with a patch in
https://reviews.freebsd.org/D18906 .  Since this is an area I'm not very
familiar with, I was hoping to get some review before committing, which
I'd like to do sooner rather than later in preparation for a 12.0 EN.
If anyone familiar with that code could review, I'd appreciate it.
Thanks in advance.