On Fri, 17 May 2024 10:05:14 +0800, Ming Lei wrote: > Commit a46c27026da1 ("blk-mq: don't schedule block kworker on isolated CPUs") > rules out isolated CPUs from hctx->cpumask, and hctx->cpumask should only be > used for scheduling kworker. > > Add helper blk_mq_cpu_mapped_to_hctx() and apply it into cpuhp handlers. > > This patch avoids to forget clearing INACTIVE of hctx state in case that one > isolated CPU becomes online, and fixes hang issue when allocating request > from this hctx's tags. > > [...] Applied, thanks! [1/1] blk-mq: add helper for checking if one CPU is mapped to specified hctx commit: 7b815817aa58d2e2101feb2fcf64c60cae0b2695 Best regards, -- Jens Axboe