On Sun, Dec 12, 2010 at 03:28:14PM +0000, Stefan Hajnoczi wrote: > Do you have qemu-io support for discard?
Now that you wrote it we have the support :) > Any hints on testing this? A recent guest kernel and ext -o discard > might exercise the code but I haven't tried yet. Anything that submits a discard in the guest is fine. The simples thing to test are the various mkfs tools, as they do a whole device discard. Also -o discard for various Linux filesystem works, Mark Lord's wiper.sh script, or any Windows 7 installation.
