From: Jeff Dike <jdike@addtoit.com>
To: Matheus Izvekov <mizvekov@gmail.com>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>,
Neil Brown <neilb@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: Who uses the 'nodev' flag in /proc/filesystems ???
Date: Mon, 20 Mar 2006 12:56:33 -0500 [thread overview]
Message-ID: <20060320175633.GA5797@ccure.user-mode-linux.org> (raw)
In-Reply-To: <305c16960603200817u3c8e4023nf2621245fdb0ed65@mail.gmail.com>
On Mon, Mar 20, 2006 at 01:17:59PM -0300, Matheus Izvekov wrote:
> If a filesystem is nodev, then what would you fsck? Am i missing something?
There's a UML filesystem for which the nodev-implies-no-fsck behavior
is inconvenient. It stores its files as files on the host, where the
file metadata is stored separately from the file data. If the two
fall out of sync after a crash, we need to fsck it. In this case,
fsck would do a hostfs mount of the data and metadata (where the files
are available as they exist on the host) and fix things up.
So, in this case, the thing being fscked is a directory hierarchy on
the host.
Jeff
next prev parent reply other threads:[~2006-03-20 17:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-19 5:27 Who uses the 'nodev' flag in /proc/filesystems ??? Neil Brown
2006-03-19 9:27 ` Jan Engelhardt
2006-03-20 4:46 ` Neil Brown
2006-03-20 16:06 ` Jan Engelhardt
2006-03-20 16:17 ` Matheus Izvekov
2006-03-20 17:56 ` Jeff Dike [this message]
2006-03-20 19:22 ` Matheus Izvekov
2006-03-20 19:48 ` Jeff Dike
2006-03-20 19:58 ` Jan Engelhardt
2006-03-21 0:32 ` Jeff Dike
2006-03-21 17:31 ` Jan Engelhardt
2006-03-20 21:14 ` Andreas Schwab
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