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

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Message-ID: <20151112155230.GA30642@infradead.org>
Date:	Thu, 12 Nov 2015 07:52:30 -0800
From:	Christoph Hellwig <hch@...radead.org>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Matias Bj??rling <m@...rling.me>, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, axboe@...com
Subject: Re: [PATCH] null_blk: Register as a LightNVM device

On Thu, Nov 12, 2015 at 08:49:08AM -0700, Jens Axboe wrote:
> But it still avoids duplicating the generics of it. Patch for null_blk:
> 
> 3 files changed, 168 insertions(+), 7 deletions (-)
> 
> vs a standalone of:
> 
> 3 files changed, 459 insertions(+)
> 
> It doesn't screw up null_blk, so I'd prefer just adding it as an on-the-side
> mode for that.

300 lines of boilerplate for just setting up a few request_queues seem
wrong, can you show the actual patch you measured?
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