Date: Wed, 11 Sep 2002 09:18:03 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Nate Lawson <nate@root.org> Cc: des@freebsd.org, arch@freebsd.org Subject: Re: PATCH: vnode->v_tag to const char * Message-ID: <24013.1031728683@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 10 Sep 2002 16:38:09 PDT." <Pine.BSF.4.21.0209101629150.19569-100000@root.org>
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In message <Pine.BSF.4.21.0209101629150.19569-100000@root.org>, Nate Lawson wri tes: >I have built and tested a patch that changes v_tag and all users of >it. Since it should never be accessed other than for debugging, it is now >a const char *, set by the caller of getnewvnode(9). Background: The main motivations for this change is to make it hard(er) for code to abuse v_tag, since doing so is almost invariably a mistake and to remove the need to edit the vtagtype enum in <sys/vnode.h> everytime a filesystem is added. -- 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. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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