On 10/03/11 14:13, Jim Meyering wrote: > Have you thought of adding a test that would check for > the merged extents in the result, say using filefrag?
That's a bit tricky, at least until I merge fallocate() support, and even then we're at the behest of the file system as to what actually happens in the dest. Perhaps I could do something with strace. I'll think about it. cheers, Pádraig.