Date: Sun, 10 Feb 2008 16:10:11 -0600 From: Mike Pritchard <mpp@mail.mppsystems.com> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Dag-Erling Sm??rgrav <des@des.no>, Mike Pritchard <mpp@FreeBSD.org>, cvs-all@FreeBSD.org, src-committers@FreeBSD.org, cvs-src@FreeBSD.org Subject: Re: cvs commit: src/share/man/man5 fstab.5 Message-ID: <20080210221011.GA2731@mail.mppsystems.com> In-Reply-To: <37092.1202587353@critter.freebsd.dk> References: <86ir0xc45r.fsf@ds4.des.no> <37092.1202587353@critter.freebsd.dk>
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On Sat, Feb 09, 2008 at 08:02:33PM +0000, Poul-Henning Kamp wrote: > In message <86ir0xc45r.fsf@ds4.des.no>, =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= wr > ites: > >Mike Pritchard <mpp@FreeBSD.org> writes: > >> Log: > >> Explain how the passno field in /etc/fstab works with fsck > >> and quotacheck in some more detail. > > > >One thing that isn't entirely clear: how do fsck and quotacheck behave > >for passno > 1? I get the impression (both from the man page and from > >previous mailing list discussions) that all file systems with a passno > >above 1 are treated equally, rather than being ranked by their passno. > > Last I mucked about with this code, it would handle passes sequentially > but disks[1] in each pass in parallel. > > The reason for doing it this way was that there is no way to see from > /dev/ccd0 which drives this would affect, this using passes to control > when ccd devices where handled allowed manual sceduling. > > If people have changed it since then, I'm not aware of it. > > Poul-Henning > > [1] A disk being defined as anything in the device name up to and including > the first numeric sequenc of characters. Ie: "ad0s4b" is on disk "ad0" It is how phk stated. I'll try and make it a bit clearer in the man page. And in the past, only pass numbers 0, 1 and 2 were supported. Around 2001 Poul-Henning changed it to support any passno up to INTMAX-1, and until recently quotacheck still only supported passnos 0 - 2. -- Mike Pritchard mpp @ FreeBSD.org "If tyranny and oppression come to this land, it will be in the guise of fighting a foreign enemy." - James Madison (1787)
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