Zach Brown <z...@redhat.com> wrote: > This adds a syscall and vfs entry point for clone_range which offloads > data copying between existing files. > > The syscall is a thin wrapper around the vfs entry point. Its arguments > are inspired by sys_splice().
Why introduce a new syscall instead of extending sys_splice? Perhaps adding a new SPLICE_F_COPYRANGE flag to avoid compatibility problems with userspace which may expect ESPIPE when given two non-pipes would be useful. If the user doesn't need a out offset, then sendfile() should also be able to transparently utilize COPY/CLONE_RANGE, too. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
