* btrfs-progs: btrfs convert v2
@ 2016-03-03 15:33 Vytautas D
2016-03-04 0:52 ` Qu Wenruo
0 siblings, 1 reply; 2+ messages in thread
From: Vytautas D @ 2016-03-03 15:33 UTC (permalink / raw)
To: Btrfs BTRFS, Qu Wenruo
Hi Qu, thanks for your work on btrfs convert.
Does your btrfs convert work ( namely
https://www.spinics.net/lists/linux-btrfs/msg49719.html patches )
change any caveats described here ->
https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3#Before_first_use
i.e. does larger than 1 gb files still needs defrag after which
rollback is not possible ?
Thanks,
Vytas
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: btrfs-progs: btrfs convert v2
2016-03-03 15:33 btrfs-progs: btrfs convert v2 Vytautas D
@ 2016-03-04 0:52 ` Qu Wenruo
0 siblings, 0 replies; 2+ messages in thread
From: Qu Wenruo @ 2016-03-04 0:52 UTC (permalink / raw)
To: Vytautas D, Btrfs BTRFS
Vytautas D wrote on 2016/03/03 15:33 +0000:
> Hi Qu, thanks for your work on btrfs convert.
>
> Does your btrfs convert work ( namely
> https://www.spinics.net/lists/linux-btrfs/msg49719.html patches )
> change any caveats described here ->
> https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3#Before_first_use
>
NO caveats is changed.
The only visible change is, after convert, metadata are all in SINGLE
profile other than DUP.
The rework is aimed to fix the chunk type mismatch problem.
(A lot of codes just for a workaround-able problem...)
> i.e. does larger than 1 gb files still needs defrag after which
> rollback is not possible ?
Not sure why 1GB files needs defrag.
I assume it's related to ext* block group size, the default size would
be 128M for each block group, and since each block group will have
metadata as its beginning, splitting large files into 120+M parts.
Thans,
Qu
>
> Thanks,
> Vytas
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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