Date: Wed, 12 Mar 2003 23:30:36 +1100 (EST) From: Bruce Evans <bde@zeta.org.au> To: "Tim J. Robbins" <tjr@FreeBSD.org> Cc: src-committers@FreeBSD.org, "" <cvs-src@FreeBSD.org>, "" <cvs-all@FreeBSD.org> Subject: Re: cvs commit: src/sys/kern kern_resource.c Message-ID: <20030312231337.N29621@gamplex.bde.org> In-Reply-To: <200303121124.h2CBOfQg069239@repoman.freebsd.org> References: <200303121124.h2CBOfQg069239@repoman.freebsd.org>
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On Wed, 12 Mar 2003, Tim J. Robbins wrote: > tjr 2003/03/12 03:24:41 PST > > FreeBSD src repository > > Modified files: > sys/kern kern_resource.c > Log: > Acquire sched_lock around use of FOREACH_KSEGRP_IN_PROC, accesses > to kg_nice and calls to sched_nice() in getpriority() and setpriority() > (really donice()). Locking for read access doesn't seem to be any more useful in getpriority() than anywhere else. Even when the value is used before the lock is released (in the loops), the value may become stale before it gets back to userland, and having a coherent set of values in the loops is not critical. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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