Underlying filesystem for file-backed loop

[Chris Rigsby <rigsby@ix.netcom.com>]

I apologize in advance if this has been extensively discussed, but I'm 
curious about facts/opinions regarding the use of file-backed loop where 
the file lives inside an ext3 filesystem.  For example,  I setup 
/dev/loop3 to point to /home/rigsby/bigsecrets.dat and /home is an ext3 
file system.

Are there any concerns, advantages, or disadvantages to having the 
source file for a file-backed loop in an ext3 filesystem versus ext2?

Thanks,
</CR>

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