On Tue, Jul 17, 2018 at 06:57:41AM -0700, Christoph Hellwig wrote: > On Fri, Jul 13, 2018 at 02:39:55PM +0200, Carlos Maiolino wrote: > > Did we? I couldn't find any interface, design, or whatever saying that userspace > > can safely assume a zero block file don't have data there and can be ignored, > > in fact, the link I posted previously already shows how tar people were not sure > > if they should assume a zero block file could be ignored. So, in fact, we didn't > > break anything, because as far as I know, nobody and no standard said an > > existing zero block file could be safely ignored, assuming it contains no data > > at all. Such thing might exist, but I'm not aware of. > > You are right that there is no interface. But breaking existing > userspace simply isn't an option either, especially when it could > lead to data loss and corruption. Fair enough. -- Carlos -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
