This still requires off-line resizing (as the re-sizing of ext2
is not trivial to do safe)? For "online" functionality, ext2 would
need to be able to use or free an extend on the fly. Otherwise
using a logical volume should be fine.
The plan is to eventually add kernel support for moving the location of
data blocks of a file, and given an inode number and all of the
directories in which that inode appears, move an inode to another
location on disk. This would allow a user-mode program to be able to do
on-line resizing at some point in the future.
This will be a ways off, but theoretically it really isn't all that hard
to do. (As always, the devil is in the details. :-)
- Ted
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