On Mon, Jan 06, 2025 at 06:58:00PM +0900, Damien Le Moal wrote: > Ah, yes, that would potentially be an issue... Hmmm... Maybe a better solution > would be to move the start update out of the main loop and do it first, before > the freeze. What I do not fully understand with the code of this function is > that it does freeze and limit update for each tag list of the tag set, but > there is only a single request queue for all of them. So I am confused. Why > does the blk_mq_freeze_queue and poll limit setting have to be done in the loop > multiple times for each tag list ? I do not see it... If we can move these out > of the tag list loops, then correcting the ordering becomes easy. I've come up with a version that simply never updates the flag. About to send it out.