On 10/13/21 11:32 AM, Christoph Hellwig wrote: > On Wed, Oct 13, 2021 at 10:49:37AM -0600, Jens Axboe wrote: >> For some reason we still have them in blk-core, with the rest of the >> request completion being in blk-mq. That causes and out-of-line call >> for each completion. >> >> Move them into blk-mq.c instead. > > The status/errno helpers really are core code. And if we change > the block_rq_complete tracepoint to just take the status and do the > conversion inside the trace event to avoid the fast path out of line > call. It's all core code at this point imho, there's on request based without mq. -- Jens Axboe