Christoph Hellwig wrote:
> 
> I think we should do it similar to the ext2 resizing patch and add a
> resize= option to mount (or remount to be more precise).

I wasn't familiar with this approach, but I like it.  I didn't really 
like the ioctl on the root directory, but didn't have a better idea.  (I 
didn't want to have to go through procfs.)

I'm not sure about defrag.  This utility makes many private syscalls to 
the file system, and I'm afraid (though I haven't verified it) that 
remount would contain too much overhead to call it repeatedly.  We may 
have to resort to something less elegant here.


-- 
David Kleikamp
IBM Linux Technology Center

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