Re: [Libguestfs] [PATCH v2 1/4] file: Avoid unsupported fallocate() calls

> #ifdef FALLOC_FL_ZERO_RANGE > - r = do_fallocate (h->fd, FALLOC_FL_ZERO_RANGE, offset, count); > - if (r == -1 && errno != EOPNOTSUPP) { > - nbdkit_error ("zero: %m"); > + if (h->can_zero_range) { > + r = do_fallocate (h->fd, FALLOC_FL_ZERO_RANGE, offset, count); > + if (r== 0) Spacing is off.