linux-kernel - Re: [PATCH] blk-mq: kick requeue list in blk_mq_requeue

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Message-ID: <20140610112827.GA359@lst.de>
Date:	Tue, 10 Jun 2014 13:28:27 +0200
From:	Christoph Hellwig <hch@....de>
To:	Ming Lei <tom.leiming@...il.com>
Cc:	Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
	Matias Bjørling <m@...rling.me>,
	Christoph Hellwig <hch@....de>
Subject: Re: [PATCH] blk-mq: kick requeue list in blk_mq_requeue_request()

On Tue, Jun 10, 2014 at 12:52:05PM +0800, Ming Lei wrote:
> blk_mq_requeue_request() should kick off the requeue list so
> that the request can be scheduled to queue finally.
> 
> In nvme conversion patch, blk_mq_requeue_request() is called
> to requeue failed request from completion handler, this patch
> fixes the issue and makes the block API working as expected.

I've intentionally kepts the two separate so that we can batch operations
and just do a single kick for multiple requeued commands.

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