linux-ext4 - Re: [RFC] ext4-locality-groups patch

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Message-ID: <45801018.1090001@bull.net>
Date:	Wed, 13 Dec 2006 15:37:12 +0100
From:	Valerie Clement <valerie.clement@...l.net>
To:	Alex Tomas <alex@...sterfs.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [RFC] ext4-locality-groups patch

Alex Tomas wrote:
>>>>>> Valerie Clement (VC) writes:
> 
>  VC> Hi Alex,
>  VC> I did the following test:
>  VC> # mkfs /dev/sdc1
>  VC> # mount -t ext4dev -o extents,mballoc,delalloc /dev/sdc1 /test
>  VC> # dumpe2fs -h /dev/sdc1
>  VC> # cp linux.tar /test
>  VC> # tar xf /test/linux.tar
>  VC> # dumpe2fs -h /dev/sdc1
> 
>  VC> The "Free blocks" and "Free inodes" counters in the dumpe2fs output
>  VC> did not change after running the cp and tar commands.
> 
> sync should help, I think.

No, I've just tried, it does not change anything.
   Valérie

> 
>  VC> I think it misses a call to ext4_commit_super() at the end of the
>  VC> ext4_lg_sync_inodes function.
>  VC> Am I right ?
> 
> what for? allocation was delayed, no blocks were allocated.
> 
> thanks, Alex
> 

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