[PATCHv10 9/9] scsi: set permanent stream count in block limits

[Christoph Hellwig]

On Tue, Oct 29, 2024 at 10:18:31AM -0700, Bart Van Assche wrote:
> On 10/29/24 8:26 AM, Christoph Hellwig wrote:
>> Bart, btw: I think the current sd implementation is buggy as well, as
>> it assumes the permanent streams are ordered by their data temperature
>> in the IO Advise hints mode page, but I can't find anything in the
>> spec that requires a particular ordering.
>
> How about modifying sd_read_io_hints() such that permanent stream
> information is ignored if the order of the RELATIVE LIFETIME information
> reported by the GET STREAM STATUS command does not match the permanent
> stream order?

That seems odd as there is nothing implying that they should be ordered.
The logic thing to do would be to a little array mapping the linux
temperature levels to the streams ids.