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To: Don Lewis <truckman@FreeBSD.org>
References: <200402162354.i1GNs87E047987@gw.catspoiler.org>
From: des@des.no (Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?=)
Date: Tue, 17 Feb 2004 10:01:37 +0100
In-Reply-To: <200402162354.i1GNs87E047987@gw.catspoiler.org> (Don Lewis's
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cc: scottl@FreeBSD.org
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Subject: Re: cvs commit: src/sys/vm vm_kern.c
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Don Lewis <truckman@FreeBSD.org> writes:
> While I think an extra malloc option to get this behaviour is
> reasonable, I think this is another situation where it would be better
> to wire the user buffer and copy the data directly to user space.
> Approximately the same amount of memory will be tied up servicing the
> request in either case.

No, the issue in pseudofs is that it needs a buffer of size offset +
resid rather than just resid.  There is a way to get around this
though, by hack^H^H^H^Hextending the sbuf(9) API.

DES
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Dag-Erling Sm=F8rgrav - des@des.no