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.
