>>>>> "Kent" == Kent Overstreet <koverstreet@xxxxxxxxxx> writes: >> Hmm, careful here. I think that in DIF/DIX the checksums are >> per-sector, not per IO, right? That'd mean that the PAGE_SIZE attr >> limit in this patch would be magically creating different max IO size >> limits on different architectures. That doesn't seem great. Kent> Not just per sector, Per hardware sector. Per logical block (or for some devices less). Kent> For passing around checksums userspace would have to find out the Kent> hardware sector size and checksum type/size via a different Kent> interface, The relevant information is already exported in sysfs. Including the format, how many bytes of integrity metadata go with how many bytes of data, etc. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
