It's probably worth mentioning the sparse expansion caveat in the docs, as it's important and not obvious. I.E. copy_file_range() could be called from, but would still benefit from a user space app using a SEEK_{HOLE,DATA} loop. thanks, Pádraig. -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html