linux-ext4 - Re: [PATCH] ext4: Protect group inode free counting with group lock.

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Message-ID: <4FC431E6.7020206@tao.ma>
Date:	Tue, 29 May 2012 10:18:14 +0800
From:	Tao Ma <tm@....ma>
To:	Ted Ts'o <tytso@....edu>
CC:	Eric Sandeen <sandeen@...hat.com>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: Protect group inode free counting with group lock.

On 05/29/2012 06:22 AM, Ted Ts'o wrote:
> On Thu, May 17, 2012 at 10:17:34AM +0800, Tao Ma wrote:
>> oh, I see. Yes, we mkfs the system with the following configurations:
>> mke2fs -O ^resize_inode,^uninit_bg,extent,meta_bg,flex_bg,ext_attr
>> Maybe that's the reason why it has never be met by others before. ;)
> 
> I'm curious -- is there a specific reason you're disabling the group
> descriptor checksum?  Or was that just something that was picked at
> one point and you haven't changed it since?
We are just disabling the uninit_bg so as to let the block group
initialization happen in the mkfs time. I don't know why the checksum is
also disabled by ^uninit_bg.

Thanks
Tao
> 
> Thanks,
> 
> 						- Ted
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