Re: [PATCH 3/3] block/mq-deadline: Disable I/O prioritization in certain cases

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On Tue, Dec 12, 2023 at 09:15:48AM -0800, Bart Van Assche wrote:
> As mentioned before, UFS devices implement the SCSI command set and hence do not
> support write append operations. If anyone else standardizes a write append
> command for SCSI we can ask UFS vendors to implement that command. However, as
> far as I know nobody in T10 is working on standardizing a write append command.

The actual hardware support does not matter, it's the programming model.
Even with the zone append emulation in sd you don't need to care about
reordering due to I/O priorities.




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