Date: Tue, 03 Jun 2003 23:36:11 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: John Baldwin <jhb@freebsd.org> Cc: "M. Warner Losh" <imp@bsdimp.com> Subject: Re: VFS: C99 sparse format for struct vfsops Message-ID: <26877.1054676171@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 03 Jun 2003 17:33:00 EDT." <XFMail.20030603173300.jhb@FreeBSD.org>
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In message <XFMail.20030603173300.jhb@FreeBSD.org>, John Baldwin writes: > >On 02-Jun-2003 Paul Richards wrote: >> On Mon, 2003-06-02 at 21:04, Paul Richards wrote: >> >>> >>> The tradeoff with using an index into an array is that there'd be a >>> heavy penalty for growing the array if an extra method didn't fit, but >>> that would be exceptionally rare and with our present usage we'd never >>> have that happen. >> >> I'm not sure this is actually a problem after all since the Interface >> doesn't change and therefore we know a-priori how many methods there can >> be so we can pre-allocate an array. I thought the point in KOBJ was that it was extensible so you could KLD load stuff which added more methods ? -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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