Date: Tue, 21 Jan 2003 19:26:13 +0100 From: phk@freebsd.org To: Robert Watson <rwatson@freebsd.org> Cc: Matthew Dillon <dillon@apollo.backplane.com>, "Alan L. Cox" <alc@imimic.com>, Peter Wemm <peter@wemm.org>, arch@freebsd.org Subject: Re: getsysfd() patch #1 (Re: Virtual memory question) Message-ID: <16711.1043173573@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 21 Jan 2003 13:01:11 EST." <Pine.NEB.3.96L.1030121125651.11405B-100000@fledge.watson.org>
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In message <Pine.NEB.3.96L.1030121125651.11405B-100000@fledge.watson.org>, Robe
rt Watson writes:
>
>Ok, so lemme revise my thinking. Could we take this patch, rename the API
>from getsysfd(various things) to memfd(size), and simply provide anonymous
>swap-backed memory only?
The traditional design would be:
fd = open("/dev/shmem", ...);
ptr = mmap(..., fd, ...)
--
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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