Btrfs devel - Dec 2012 - btrfs df confusion

Hi

I''ve made some updates on the wiki and I''d like a technical
review for
correctness. This particular topic is already confusing - some 
unnecessary sarcasm made it even more so:
https://btrfs.wiki.kernel.org/index.php/FAQ#Why_does_df_show_incorrect_free_space_for_my_RAID_volume.3F

Due to the terms "used" and "allocated" in the wiki, viric
in #btrfs
made the good suggestion that we could adjust the show and df output 
with more intuitive language:

Before I git a patch together, please let me know if there are any good 
reasons why we wouldn''t want to make such a change.

(13:31:29) viric: zatricky: "devid ... used" are allocated data, while
"FS bytes used" is the sum of used bytes, isn''t it?
(13:33:28) zatricky: viric: correct
(13:33:52) viric: zatricky: maybe the devid lines could be changed 
s/used/allocated/
(13:34:37) zatricky: viric: that''s a good idea - would make it more 
intuitive
(13:35:29) viric: the same way, ''btrfs fi df'' could change
s/total/allocated
^ GMT+2 ;)

Thanks

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http://www.webafrica.co.za/?AFF1E97

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On 12/27/2012 12:59 PM, Brendan Hide wrote:
> Hi
Hi,
> 
> I''ve made some updates on the wiki and I''d like a
technical review for
> correctness. This particular topic is already confusing - some
> unnecessary sarcasm made it even more so:
>
https://btrfs.wiki.kernel.org/index.php/FAQ#Why_does_df_show_incorrect_free_space_for_my_RAID_volume.3F
I posted some patches in order to address this issue. However these
aren''t integrated (yet). At the end I think that I reached a general
consensus about the wording. A general description is here [1]. The
patch related to man page is here [2], which can help about the wording.

I hope that it will help your work.

BR
G.Baroncelli

> 
> 
> Due to the terms "used" and "allocated" in the wiki,
viric in #btrfs
> made the good suggestion that we could adjust the show and df output
> with more intuitive language:
> 
> Before I git a patch together, please let me know if there are any good
> reasons why we wouldn''t want to make such a change.
> 
> (13:31:29) viric: zatricky: "devid ... used" are allocated data,
while
> "FS bytes used" is the sum of used bytes, isn''t it?
> (13:33:28) zatricky: viric: correct
> (13:33:52) viric: zatricky: maybe the devid lines could be changed
> s/used/allocated/
> (13:34:37) zatricky: viric: that''s a good idea - would make it
more
> intuitive
> (13:35:29) viric: the same way, ''btrfs fi df'' could
change
> s/total/allocated
> ^ GMT+2 ;)
> 
> Thanks
> 
[1] http://permalink.gmane.org/gmane.comp.file-systems.btrfs/21071
[2]
http://markmail.org/thread/nol2gcjky4cxndhv#query:+page:1+mid:xqnyqp7slb7rrach+state:results

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Thanks, duplicate effort averted :)

On 2012/12/27 07:04 PM, Goffredo Baroncelli wrote:
> On 12/27/2012 12:59 PM, Brendan Hide wrote:
>> Hi
> Hi,
>
>> I''ve made some updates on the wiki and I''d like a
technical review for
>> correctness. This particular topic is already confusing - some
>> unnecessary sarcasm made it even more so:
>>
https://btrfs.wiki.kernel.org/index.php/FAQ#Why_does_df_show_incorrect_free_space_for_my_RAID_volume.3F
> I posted some patches in order to address this issue. However these
> aren''t integrated (yet). At the end I think that I reached a
general
> consensus about the wording. A general description is here [1]. The
> patch related to man page is here [2], which can help about the wording.
>
> I hope that it will help your work.
>
> BR
> G.Baroncelli
>
>
>>
>> Due to the terms "used" and "allocated" in the
wiki, viric in #btrfs
>> made the good suggestion that we could adjust the show and df output
>> with more intuitive language:
>>
>> Before I git a patch together, please let me know if there are any good
>> reasons why we wouldn''t want to make such a change.
>>
>> (13:31:29) viric: zatricky: "devid ... used" are allocated
data, while
>> "FS bytes used" is the sum of used bytes, isn''t it?
>> (13:33:28) zatricky: viric: correct
>> (13:33:52) viric: zatricky: maybe the devid lines could be changed
>> s/used/allocated/
>> (13:34:37) zatricky: viric: that''s a good idea - would make it
more
>> intuitive
>> (13:35:29) viric: the same way, ''btrfs fi df'' could
change
>> s/total/allocated
>> ^ GMT+2 ;)
>>
>> Thanks
>>
> [1] http://permalink.gmane.org/gmane.comp.file-systems.btrfs/21071
> [2]
>
http://markmail.org/thread/nol2gcjky4cxndhv#query:+page:1+mid:xqnyqp7slb7rrach+state:results
>

-- 
Brendan Hide

083 448 3867
http://swiftspirit.co.za/

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