Date: 15 Jun 1999 08:51:24 +0200 From: Dag-Erling Smorgrav <des@flood.ping.uio.no> To: Tani Hosokawa <unknown@riverstyx.net> Cc: Brett Glass <brett@lariat.org>, Dag-Erling Smorgrav <des@flood.ping.uio.no>, David Schwartz <davids@webmaster.com>, David Kelly <dkelly@hiwaay.net>, Morten Seeberg <morten@seeberg.dk>, freebsd-chat@FreeBSD.ORG Subject: Re: SGI Donated Journalised FS Source to Linux Message-ID: <xzphfoaez2r.fsf@flood.ping.uio.no> In-Reply-To: Tani Hosokawa's message of "Tue, 15 Jun 1999 04:03:01 -0700 (PDT)" References: <Pine.LNX.4.10.9906150401120.23539-100000@avarice.riverstyx.net>
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Tani Hosokawa <unknown@riverstyx.net> writes: > I don't know if LKM's use kernel services by normal system calls. I'm > guessing they probably do, since they'll just tie into the VFS layer, > which is just a set of hooks designed for plunking in filesystems. No, they don't. System calls only exist in userland. LKMs use kernel services by direct function calls. The only difference between a compiled-in driver and an LKM is when it's linked into the kernel. DES -- Dag-Erling Smorgrav - des@flood.ping.uio.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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