Re: [PATCH] blk-mq: kick requeue list in blk_mq_requeue_request()

From: Christoph Hellwig
Date: Tue Jun 10 2014 - 08:45:20 EST


On Tue, Jun 10, 2014 at 07:45:47PM +0800, Ming Lei wrote:
> OK, but the API name is a bit confusing, and that is easy to cause
> misuse, like in nvme.
>
> Also requeue one request in completion handler may be a
> common case, so maybe it is better to let blk_mq_requeue_request()
> handle both adding to request list and kicking off, and introduce
> blk_mq_prep_requeue_req()(or better name) to batch operations.

For now please just add some documentation. I'm happy to revisit
these once we have a few user in tree, but for now I'd like to keep
blk-mq a little more stable to not impact the merges of the major
users.
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