On Mon, Jul 01, 2019 at 08:47:29AM -0700, Bart Van Assche wrote: > No code that occurs between blk_mq_get_ctx() and blk_mq_put_ctx() depends > on preemption being disabled for its correctness. Since removing the CPU > preemption calls does not measurably affect performance, simplify the > blk-mq code by removing the blk_mq_put_ctx() function and also by not > disabling preemption in blk_mq_get_ctx(). Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>