Il 21/02/2013 07:33, Dietmar Maurer ha scritto: >> This should call bdrv_is_allocated_above like the other block jobs do. >> It would be needed later anyway to backup only the topmost image. > > I do not need that information now, so why do you want that I add dead code?
I think you do. You're wasting time reading unallocated clusters and checking that they are zero. bdrv_is_allocated_above gives you the same information much more efficiently. Do VMA files have to store all the blocks of the source file? Paolo
