linux-kernel - Re: [PATCH] null_blk: Register as a LightNVM device

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Date:	Thu, 12 Nov 2015 07:58:31 -0800
From:	Christoph Hellwig <hch@...radead.org>
To:	Jens Axboe <axboe@...com>
Cc:	Jens Axboe <axboe@...nel.dk>, Matias Bj??rling <m@...rling.me>,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] null_blk: Register as a LightNVM device

On Thu, Nov 12, 2015 at 08:54:48AM -0700, Jens Axboe wrote:
> >300 lines of boilerplate for just setting up a few request_queues seem
> >wrong, can you show the actual patch you measured?
> 
> I just took it from Matias' last posting:
> 
> http://marc.info/?l=linux-kernel&m=144605858228534&w=2

Well, that one has all these crazy completion methods which
are of no use for a blk-mq driver, so it should really be
compared without those.
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