Date: Sun, 11 Mar 2001 21:23:11 +0100 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Alfred Perlstein <bright@wintelcom.net> Cc: mjacob@feral.com, Dag-Erling Smorgrav <des@ofug.org>, "Niels Chr. Bank-Pedersen" <ncbp@bank-pedersen.dk>, current@FreeBSD.org, Greg Lehey <grog@lemis.com> Subject: Re: how's vinum these days with DEVFS? Message-ID: <46116.984342191@critter> In-Reply-To: Your message of "Sun, 11 Mar 2001 12:13:37 PST." <20010311121337.J18351@fw.wintelcom.net>
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In message <20010311121337.J18351@fw.wintelcom.net>, Alfred Perlstein writes: >What's up with devfs not gc'ing itself? Ie, after a directory >becomes empty it seems to still exist within the devfs namespace >instead of disappearing. That was a deliberate decision, removing a directory(-inode) which might have a valid vnode is kind of a nasty thing to attempt. >Since you guys are in docco mode, you might as well document how one >detects a devfs system in a running system. There's an example >in the vinum(8) source: > > if (sysctlbyname("vfs.devfs.generation", NULL, NULL, NULL, 0) == 0) > devfs_is_active = 1; > else > devfs_is_active = 0; Which is the correct and blessed way to find out. -- 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-current" in the body of the message
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