[patch] POSIX advisory mode lock panic fix by Dfly

[Devon H. O'Dell]

Devon H. O'Dell wrote:
Hey all,

I've ported my patch for the local kernel panic that I fixed in a patch 
Joerg pointed out a couple of problems with my patch (a case for lock 
starvation in an SMP scenario) and will be posting an alternate version 
to the list.

Kind regards,

Devon H. O'Dell