[linux-lvm] snapshot implementation

[Navendu Jain <nav cs utexas edu>]

Hi,

I am looking for a documentation/HOW-TO/tech report explaining the
implementation of the snapshots feature in LVM1/LVM2 source. I couldn't
find much related info on snapshot internals in the mailing-list archive.

Also, a related question is if there are in-built methods of comparing two
snapshots of the same logical volume ?

Thanks,
Navendu