On 1/30/24 22:28, Zhaoyang Huang wrote: >> That information does not belong to the ioprio. And which scheduler acts on a >> number of pages anyway ? The scheduler sees requests and BIOs. It can determine >> the number of pages they have if that is an information it needs to make >> scheduling decisison. Using ioprio to pass that information down is a dirty hack. > No. IO scheduler acts on IOPRIO_CLASS which is transferred from the > page's activity by the current method. I will implement another > version of iterating pages before submit_bio and feed back to the list Then why are you modifying the ioprio user API to add the 7 bits of activity ? If the scheduler only needs the priority class, then only set that and do not touch the user facing API. -- Damien Le Moal Western Digital Research
