>>>>> "Rob" == Rob Evers <revers@xxxxxxxxxx> writes: Rob> These patches replace the original t10 type 2 dif mempool Rob> implementation by increasing the block and scsi cdb maximum sizes Rob> from 16 to 32 bytes. The cdb embedded in the request structure can Rob> then be used for type 2 dif commands, or other 32 byte cdbs as Rob> required. Rob> Motivation for this is that type-2 dif commands should be treated Rob> as any other read/writes generally, without any performance Rob> penalty. We did the mempool because we did not want to penalize everybody else by always allocating 32-byte CDBs. Type 2 is a really rare corner case. So while I agree we should handle the UA scenario correctly, I'm not sure I agree with the fix. Why are you messing with Type 2 devices in the first place? These should really only be used inside disk arrays. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
