linux-kernel - Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i

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Message-ID: <840e19dc-e2bf-b2f8-3256-ba49a3cc1ead@kernel.org>
Date:   Sat, 5 Nov 2016 11:12:00 +0800
From:   Chao Yu <chao@...nel.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <yuchao0@...wei.com>
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, liushuoran@...wei.com
Subject: Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times

On 2016/11/5 6:53, Jaegeuk Kim wrote:
> On Fri, Nov 04, 2016 at 04:30:09PM +0800, Chao Yu wrote:
>> On 2016/11/4 2:02, Jaegeuk Kim wrote:
>>> On Fri, Nov 04, 2016 at 12:26:56AM +0800, Chao Yu wrote:
>>>> From: Chao Yu <yuchao0@...wei.com>
>>>>
>>>> i_times of inode will be set with current system time which can be
>>>> configured through 'date', so it's not safe to judge dnode block as
>>>> garbage data depend on i_times.
>>>
>>> This is not to detect garbage data, but to skip redundant unchanged inode.
>>
>> Oops, seems 807b1e1c8e08 ("f2fs: do not recover from previous remained wrong
>> dnodes") did't describe like that. But after reading the codes, it looks like
>> the purpose of this change is to skip unchanged inode. So, commit log in
>> original is incorrect, right?
> 
> Oh, right. This indicats both of purposes: stale data and detecting same inodes.

Alright.

> Let me just revert the original patch.

I can see that you have did reverting it in your git tree, but seems commit
number is not right.

Could you please merge my updated v2 patch instead?

Thanks,

> 
> Thanks,
> 
>>
>> Thanks,