From owner-freebsd-arch  Sun Feb 17 17:42:14 2002
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Date: Sun, 17 Feb 2002 17:42:04 -0800 (PST)
From: Matthew Dillon <dillon@apollo.backplane.com>
Message-Id: <200202180142.g1I1g4L09623@apollo.backplane.com>
To: Terry Lambert <tlambert2@mindspring.com>
Cc: Poul-Henning Kamp <phk@critter.freebsd.dk>,
	Julian Elischer <julian@elischer.org>,
	Alfred Perlstein <bright@mu.org>, arch@FreeBSD.ORG, jhb@FreeBSD.ORG,
	peter@wemm.org, jake@locore.ca
Subject: Re: gettimeofday() and crhold()/crfree() (was Re: gettimeofday()and 
 copyout(). Is copyout() MPSAFE on non-i386 archs? )
References: <5405.1013975811@critter.freebsd.dk> <200202172011.g1HKBsv88526@apollo.backplane.com> <3C7049A4.15412853@mindspring.com> <200202180030.g1I0UU309210@apollo.backplane.com> <3C705190.8B56A024@mindspring.com>
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:So actually, I would prefer that the call succeed
:always, and that the failure be fatal.  The only
:reason to maintain support for system-call based
:access to the data is for legacy applications, IMO.
:
:-- Terry

    I have to disagree.  Structural based shared memory has severe issues
    with forwards and backwards compatibility, even if you stick a version
    number on it.  So it's nice to have but the kernel should not be forced
    to supply it.

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>


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