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From: John Baldwin <jhb@freebsd.org>
To: Edward Tomasz Napierala <trasz@freebsd.org>
Date: Fri, 28 Jan 2011 17:12:41 -0500
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Cc: Perforce Change Reviews <perforce@freebsd.org>
Subject: Re: PERFORCE change 188283 for review
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On Friday, January 28, 2011 4:04:15 pm Edward Tomasz Napierala wrote:
> http://p4web.freebsd.org/@@188283?ac=10
> 
> Change 188283 by trasz@trasz_victim on 2011/01/28 21:03:18
> 
> 	Prevent one from adding per-process limits for processes marked
> 	as P_SYSTEM, or retrieving resource usage information for these
> 	processes.

You probably don't need the PROC_LOCK just to check this flag.  It is set on 
fork() and that bit never changes, so even if the other bits in p_flag are 
stale, you don't care as that doesn't affect testing for P_SYSTEM.

-- 
John Baldwin