Messages in this thread | | | Date | Tue, 3 Aug 1999 18:55:46 -0400 | From | "Theodore Y. Ts'o" <> | Subject | Re: BLKRRPART ioctl |
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Date: Tue, 03 Aug 1999 12:00:52 +0100 From: David Woodhouse <David.Woodhouse@mvhi.com>
tytso@mit.edu said: > Or if you moved the start or end points of the partition!
If you move the start, OK. Moving the end is allowed as long as you make sure you resize the filesystem before actually clobbering it.
If the filesystem is mounted, then you don't want to allow either the start or the end of the filesystem to move. If you are playing with the kernel patches do live-mounted resizes of ext2, then one could imagine a patch where the partition remounting code asks the filesystem code for permission about whether it is safe to allow the partition reloadto proceed. But since those patches are still in development, a simple "if the filesystem is in use, then it shouldn't change (or at least not let it shrink!)" hueristic is probably the safest.
- Ted
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