[patch] POSIX advisory mode lock panic fix by Dfly

[Matthew Dillon]

:I'm going to think about the whole lock handling in kern_lockf.c, I have
:the slight feeling I can simplify it and do the allocation properly at the
:same time.
:
:Joerg

    I am going to commit the basic resource limit infrastructure but hold
    off on the lockf implementation that is still under discussion.

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>