linux-ext4 - Re: [PATCH RFC v1 0/5]Factor common code from convert and split unwritten.

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Date:	Wed, 27 Apr 2011 09:14:19 +0800
From:	Yongqiang Yang <xiaoqiangnk@...il.com>
To:	Allison Henderson <achender@...ux.vnet.ibm.com>
Cc:	linux-ext4@...r.kernel.org, cmm@...ibm.com
Subject: Re: [PATCH RFC v1 0/5]Factor common code from convert and split unwritten.

On Wed, Apr 27, 2011 at 3:08 AM, Allison Henderson
<achender@...ux.vnet.ibm.com> wrote:
> On 4/23/2011 1:44 AM, Yongqiang Yang wrote:
>>
>> v0->v1:
>>    fix a bug in ext4_ext_convert_to_initialized() reported by
>>    Allison<achender@...ux.vnet.ibm.com>.
>>
>>    optimize ext4_ext_convert_to_initialized().
>>
>> -- factor common code
>>    These patches factor common code from ext4_ext_convert_to_initialized()
>> and
>>    ext4_split_unwritten_extents() so that extent-move-on-write in snapshot
>> and
>>    punch hole can be built on the common code.
>>
>> -- optimization
>>    the 4th and the 5th patch optimize ext4_ext_convert_to_initialized() by
>>    zeroing out in memory.
>>
>>
>> [PATCH RFC v1 1/5] ext4:Add a function merging extent right and left.
>> [PATCH RFC v1 2/5] ext4:Add two functions splitting an extent.
>> [PATCH RFC v1 3/5] ext4:Reimplement convert and split_unwritten.
>> [PATCH RFC v1 4/5] ext4: Add a function ext4_ext_zeroout_mem().
>> [PATCH RFC v1 5/5] ext4: optimize ext4_ext_convert_to_initialized().
>> --
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>
> Hi there,
>
> Just an update on your patch set.  Im am working on getting the punch hole
> patch to work with this new set, but I'm am having trouble getting it
> through the stress test.  It gets up to around 48265 file operations, and
> then hangs. So I am currently trying to narrow down the problem.  It looks
> like it does it with or with out the extra punch hole patches, but you may
> need to enable fallocate in the fsx Makefile to recreate the problem.  I
> will keep you posted if I find any more clues.
ok. Thank you.
>
> Allison Henderson
>



-- 
Best Wishes
Yongqiang Yang
--
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