Subject: Re: shooting oneself in the foot
To: Alfred Perlstein <email@example.com>
From: Greywolf <firstname.lastname@example.org>
Date: 01/16/2002 12:05:08
My two cents:
disklabel(8) should not be allowing modifications of mounted filesystems
(by checking at write time). At least not without sufficient warnings
that will drive off someone with a shadow of a doubt as to what they
On Wed, 16 Jan 2002, Alfred Perlstein wrote:
# * David Laight <email@example.com> [020116 11:13] wrote:
# > When a disk write is done, the offset of the partition on the disk is
# > taken from the CURRENT disklabel, not the label that existed at the time
# > the partition was mounted.
# > There are no checks to stop you changing the partition offsets of a
# > partition that has a filesystem mounted on it. However changing these
# > values will be rather devastating on the disk area that the label now
# > points to.
# > IMHO the mount should grab the current offset and stick with it.
# This would seem to be a major layering violation. The FS is only
# supposed to know about the underlying disk, not the boundry of
# the partition. It sees 0..endofpartition, not start..end. :)
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