> * Until now, unified EH seems good enough. In fact, not a single driver > needs to go further than calling ata_do_eh() w/ proper callbacks. This has been shown to be fairly true for the old IDE as well. Other than the years old unfixed promise crash (for which patches exist) the core error recovery doesn't need to do anything in a different order for different devices. For PATA controllerrs using the traditional i/o API the variances are small and normally around the resetting of the bus, and whether you also have to whack the state machine with a large hammer to get it back into shape after an error case, or whether hardware does it. The promise is "special" purely because if you reset the state machine then read from the data port before you do another operation you hang the box, and that sequence of events is a failure of the old IDE design rather than a "different" ordering of events. Alan - : send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
