linux-ext4 - Re: [RFC][PATCH 2/3] ext4 online defrag (ver 0.7)

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Message-ID: <47D01D8C.1000806@redhat.com>
Date:	Thu, 06 Mar 2008 10:36:28 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	Akira Fujita <a-fujita@...jp.nec.com>
CC:	Andreas Dilger <adilger@....com>, tytso@....edu, cmm@...ibm.com,
	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [RFC][PATCH 2/3] ext4 online defrag (ver 0.7)

Akira Fujita wrote:
> Hi Andreas,
>> On Mar 06, 2008  09:01 +0900, Akira Fujita wrote:
>>   
>>> Change the name of functions (ext4_ext_xxx -> ext4_defrag_xxx)
>>> and some cleanups.
>>>
>>> -int ext4_ext_walk_space(struct inode *inode, ext4_lblk_t block,
>>> -			ext4_lblk_t num, ext_prepare_callback func,
>>> -			void *cbdata)
>>> -{
>>>     
>> We were just going to be using this function for the FIEMAP support.
>> I think there are several other functions which are not specific
>> to defrag, so they shouldn't be renamed to be defrag specific.
>>   
> 
> ext4_ext_walk_space is no longer used by ext4 online defrag.
> So I just removed from defrag.c not renamed.
> 
> Shouldn't I remove ext4_ext_walk_space from defrag
> for support FIEMAP?
> I think it should be moved to extents.c

I agree.  I'm working on FIEMAP, and I'll put it back into extents.c
along with the FIEMAP patch, if you don't need it for defrag.

-Eric
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