linux-kernel - Re: [PATCH] SQUASHME: Streamline pmem.c

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Message-ID: <1427408258.29730.10.camel@theros.lm.intel.com>
Date:	Thu, 26 Mar 2015 16:17:38 -0600
From:	Ross Zwisler <ross.zwisler@...ux.intel.com>
To:	Boaz Harrosh <boaz@...xistor.com>
Cc:	Christoph Hellwig <hch@....de>, linux-nvdimm@...1.01.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, axboe@...nel.dk
Subject: Re: [PATCH] SQUASHME: Streamline pmem.c

On Thu, 2015-03-26 at 19:02 +0200, Boaz Harrosh wrote:
> Christoph why did you choose the fat and ugly version of
> pmem.c beats me. Anyway, here are the cleanups you need on
> top of your pmem patch.
> 
> Among other it does:
> * Remove getgeo. It is not needed for modern fdisk and was never
>   needed for libgparted and cfdisk.
> 
> * remove 89 lines of code to do a single memcpy. The reason
>   this was so in brd (done badly BTW) is because destination
>   memory is page-by-page based. With pmem we have the destination
>   contiguous so we can do any size, in one go.
> 
> * Remove SECTOR_SHIFT. It is defined in 6 other places
>   in the Kernel. I do not like a new one. 9 is used through
>   out, including block core. I do not like pmem to blasphemy
>   more than needed.
> 
> * More style stuff ...
> 
> Please squash into your initial submission
> 
> Signed-off-by: Boaz Harrosh <boaz@...xistor.com>

I agree with Christoph's comments, but overall I think these changes are
great.  Please send out as a series & you can add:

Reviewed-by: Ross Zwisler <ross.zwisler@...ux.intel.com>

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