linux-ext4 - Re: Ext4 projects for 2014

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Message-ID: <52A7FB57.7060201@tao.ma>
Date:	Wed, 11 Dec 2013 13:42:47 +0800
From:	Tao Ma <tm@....ma>
To:	Theodore Ts'o <tytso@....edu>, linux-ext4@...r.kernel.org,
	mingming.cao@...cle.com
Subject: Re: Ext4 projects for 2014

Hi Ted and Mingming,
On 12/09/2013 09:43 AM, Theodore Ts'o wrote:
> Unfortunately, I forgot my notes from our last conference call before
> heading off to the airport.  My fault for taking the notes on paper
> instead of electronically in the first place.  :-(
> 
> This is my best reconstruction of some of the ext4 projects for 2014.
> Please let me know if I've forgotten anything.
> 
> 1)  Support for Shingled (SMR) Drives
> 
> 2)  Data block compression -- Lukas
> 
> 3)  reflink support --- Mingming
>        block-level snapshot support
>        Use case:  (a) VM guest images which are mostly derived from
>        	   	      the same common master image
Any more details about your plan? And what advantage we can get over
QCOW2 and VHD?

Thanks,
Tao
> 
> 4)  Subvolume quotas (aka project quotas) -- Zheng
> 
> 5)  block improvements -- raid support / flash block size
> 
> 6)  Better support for non-rotating media
>        Differences between thinp and flash?
>        General problem: how do we measure improvements in the
>        block allocator?
> 
> Other more minor todo items:
> 
> A)  Finish integration of inline support in e2fsprogs
> 
> B)  Dioread nolock cleanup
> 
> C)  Extent status tree shrinker
> 
> 
> 						- Ted
> 
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