On Sun, Jul 05, 2026 at 03:51:07AM +0800, Yu Kuai wrote: > From: Yu Kuai <[email protected]> > > This RFC moves queue-local blkg topology synchronization from > q->queue_lock to q->blkcg_mutex. > > q->queue_lock is a hot block-layer spinlock used by request queue runtime > paths,
I don't think it is hot any more. If it is in one of your workloads we have a deep problem somewhere. That being said, futher removing uses of his old catch-all lock is always good, hopefully we can eventually remove it entirely. So this series looks great to me conceptually, but I'm unfortunately not a very qualified reviewer for the blk-cgroup code.
