linux-ext4 - Re: [PATCH V2] e2fsprogs: add ext2fs_group_blocks

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Date:	Thu, 21 Jul 2011 10:06:56 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Yongqiang Yang <xiaoqiangnk@...il.com>
CC:	linux-ext4@...r.kernel.org, tytso@....edu
Subject: Re: [PATCH V2] e2fsprogs: add ext2fs_group_blocks_count helper

On 7/21/11 9:57 AM, Yongqiang Yang wrote:
> On Thu, Jul 21, 2011 at 9:55 PM, Eric Sandeen <sandeen@...hat.com> wrote:
>> On 7/20/11 4:57 PM, Eric Sandeen wrote:
>>> Code to count the number of blocks in the last partial
>>> group is cut and pasted around the e2fsprogs codebase, and
>>> is wrong in at least one instancem as pointed out by
>>> Yongqiang Yang (but not fixed in this patch).
>>>
>>> Making this a helper function should improve matters.
>>>
>>> Signed-off-by: Eric Sandeen <sandeen@...hat.com>
>>> ---
>>
>> Argh V3 coming today, I got a little too fast and loose sending this one
>> at the end of the day yesterday didn't I:
> Hi Eric,
> 
> It seemed you did not send out the v3 patch.   You just pointed out
> what to be added in the V3 patch.

That is correct.  :)

I'll send it out a bit later after I carefully review this time :(

-Eric

> Yongqiang.
>>
>>> @@ -499,18 +499,8 @@ retry:
>>>               ext2fs_bg_flags_zap(fs, i);
>>>               if (csum_flag)
>>>                       ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_UNINIT | EXT2_BG_INODE_ZEROED);
>>> -             if (i == fs->group_desc_count-1) {
>>> -                     numblocks = (ext2fs_blocks_count(fs->super) -
>>> -                                  fs->super->s_first_data_block) %
>>> -                                          fs->super->s_blocks_per_group;
>>> -                     if (!numblocks)
>>> -                             numblocks = fs->super->s_blocks_per_group;
>>> -             } else {
>>> -                     numblocks = fs->super->s_blocks_per_group;
>>> -                     if (csum_flag)
>>> -                             ext2fs_bg_flags_set(fs, i,
>>> -                                                 EXT2_BG_BLOCK_UNINIT);
>>
>> still need to do that flag set with the new helper.
>>
>> - Eric
>>
>>> -             }
>>> +
>>> +             numblocks = ext2fs_group_blocks_count(fs, i);
>>>
>>>               has_super = ext2fs_bg_has_super(fs, i);
>>>               if (has_super) {
>>>
>>> --
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>>
>>
> 
> 
> 

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