On 03/12/2014 07:15 PM, NeilBrown wrote: > I also think there should probably be just one FAILFAST flag. Where it was > the DEV or the TRANSPORT or the DRIVER that failed could be returned in the > error code for any caller that cared. But as I don't know why the one became > three I could well be missing something important.
It was for multipath. The problem was dm-multipath does not know what to do with low level device errors, but wanted transport errors returned quickly. Other drivers like the scsi_dh (formerly dm hardware handlers) modules, want all errors fast failed. I can add documentation or we can just change the code to better suite your needs. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
