Re: [PATCH v5 3/9] iov_iter: Use IOCB/IOMAP_WRITE if available rather than iterator direction

Martin K. Petersen
2023-01-14T01:36:10Z

Bart,

> I'm not sure that we still need the double copy in the sg driver. It
> seems obscure to me that there is user space software that relies on
> finding "0xec" in bytes not originating from a SCSI
> device. Additionally, SCSI drivers that do not support residuals
> should be something from the past.

Yeah. I'm not aware of anything that relies on this still. But obviously
Doug has more experience in the app dependency department.

--
Martin K. Petersen Oracle Linux Engineering