Re: VFS: C99 sparse format for struct vfsops

From: Poul-Henning Kamp <phk_at_phk.freebsd.dk>
Date: Tue, 03 Jun 2003 23:36:11 +0200
In message <XFMail.20030603173300.jhb_at_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_at_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.
Received on Tue Jun 03 2003 - 12:36:31 UTC

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