Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times

From	Jaegeuk Kim <jaegeuk@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times
Date	2016-11-05 00:00 +0100
Message-ID	<szVCO-7Wf-21@gated-at.bofh.it> (permalink)
References	<szt3P-6jb-1@gated-at.bofh.it> <szt3Q-6jb-23@gated-at.bofh.it> <szuCB-7nG-7@gated-at.bofh.it> <szIcx-7IN-11@gated-at.bofh.it>
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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@huawei.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.
Let me just revert the original patch.

Thanks,

> 
> Thanks,

Thread

[PATCH 1/2] f2fs: fix wrong i_atime recovery Chao Yu <chao@kernel.org> - 2016-11-03 17:30 +0100
  [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times Chao Yu <chao@kernel.org> - 2016-11-03 17:30 +0100
    Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times Jaegeuk Kim <jaegeuk@kernel.org> - 2016-11-03 19:10 +0100
      Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times Chao Yu <yuchao0@huawei.com> - 2016-11-04 09:40 +0100
        Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times Jaegeuk Kim <jaegeuk@kernel.org> - 2016-11-05 00:00 +0100
          Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times Chao Yu <chao@kernel.org> - 2016-11-05 04:20 +0100
            Re: [PATCH 2/2] f2fs: don't skip recovering inode depend on i_times Jaegeuk Kim <jaegeuk@kernel.org> - 2016-11-05 08:10 +0100

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