Date: Sun, 17 Feb 2002 17:42:04 -0800 (PST) From: Matthew Dillon <dillon@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? ) Message-ID: <200202180142.g1I1g4L09623@apollo.backplane.com> 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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