Messages in this thread | | | Date | Thu, 22 Sep 2022 08:20:10 +0200 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH] blk-mq: hctx has only one ctx mapping is no need to redirect the completion |
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On Wed, Sep 21, 2022 at 11:32:03AM +0800, Liu Song wrote: > From: Liu Song <liusong@linux.alibaba.com> > > High-performance NVMe devices usually support a large hw queue, which
a larger number of?
> /* > - * For a polled request, always complete locally, it's pointless > - * to redirect the completion. > + * For request which hctx has only one ctx mapping, > + * or a polled request, always complete locally, > + * it's pointless to redirect the completion. > */ > - if (rq->cmd_flags & REQ_POLLED) > + if (rq->mq_hctx->nr_ctx == 1 || > + rq->cmd_flags & REQ_POLLED)
Some very odd comment formatting and and indentation here.
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