On Wed, Apr 12, 2017 at 10:34:47AM -0500, Eric Sandeen wrote: > Is it safe to do that on a device that /actually/ has only 512 sectors? Except for NVMe none of the storage standards actually guarantees sector atomicy, although the whole storage stack traditionally relies on it.. Maybe we should claim a 4k physical block size for NVMe devices that hab 512 byte LBAs and a "Atomic Write Unit Power Fail" setting of at least 8 so that the mkfs sector size logic triggers.. -- 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