Am 17.12.2010 16:58, schrieb Stefan Hajnoczi: > This patch series adds zero data clusters to QED. Clusters can be marked as > zero clusters to store zeroed regions in a space-efficient way. The patch > never actually creates new zero clusters but includes the I/O path support > code > to handle them if they are used by an image file. > > Image streaming and copy-on-read take advantage of zero data clusters to avoid > expanding out zeroes from the backing file. Those features are separate > patches that will come later but I'm presenting this patch now so we can get > this core QED image format feature in before doing the first QEMU release > containing QED. > > The first patch fixes up an issue with the QED merge where '^' characters were > dropped from the QED specification. > > The last two patches document and implement zero clusters, which were > originally implemented by Anthony Liguori <aligu...@us.ibm.com>.
Thanks, applied all to the block branch. Kevin
