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Re: [PATCH] f2fs: fix fdatasync

From Chao Yu <yuchao0@huawei.com>
Newsgroups linux.kernel
Subject Re: [PATCH] f2fs: fix fdatasync
Date 2016-11-17 02:20 +0100
Message-ID <sEjwS-2bf-13@gated-at.bofh.it> (permalink)
References <sE7m1-2EG-23@gated-at.bofh.it> <sE7m1-2EG-39@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 2016/11/16 20:15, Christoph Hellwig wrote:
> On Wed, Nov 16, 2016 at 08:12:11PM +0800, Chao Yu wrote:
>> For below two cases, we can't guarantee data consistence:
>>
>> a)
>> 1. xfs_io "pwrite 0 4195328" "fsync"
>> 2. xfs_io "pwrite 4195328 1024" "fdatasync"
>> 3. godown
>> 4. umount & mount
>> --> isize we updated before fdatasync won't be recovered
>>
>> b)
>> 1. xfs_io "pwrite -S 0xcc 0 4202496" "fsync"
>> 2. xfs_io "fpunch 4194304 4096" "fdatasync"
>> 3. godown
>> 4. umount & mount
>> --> dnode we punched before fdatasync won't be recovered
> 
> Can you please add testcases for these to xfstests?

It's OK, will do.

> 
> .
> 

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Thread

[PATCH] f2fs: fix fdatasync Chao Yu <yuchao0@huawei.com> - 2016-11-16 13:20 +0100
  Re: [PATCH] f2fs: fix fdatasync Christoph Hellwig <hch@infradead.org> - 2016-11-16 13:20 +0100
    Re: [PATCH] f2fs: fix fdatasync Chao Yu <yuchao0@huawei.com> - 2016-11-17 02:20 +0100
      Re: [PATCH] f2fs: fix fdatasync Jaegeuk Kim <jaegeuk@kernel.org> - 2016-11-17 03:40 +0100
  Re: [PATCH] f2fs: fix fdatasync Jaegeuk Kim <jaegeuk@kernel.org> - 2016-11-16 20:20 +0100
    Re: [PATCH] f2fs: fix fdatasync Jaegeuk Kim <jaegeuk@kernel.org> - 2016-11-17 04:00 +0100
      Re: [PATCH] f2fs: fix fdatasync Chao Yu <yuchao0@huawei.com> - 2016-11-17 04:40 +0100
        Re: [PATCH] f2fs: fix fdatasync Jaegeuk Kim <jaegeuk@kernel.org> - 2016-11-17 04:50 +0100
          Re: [PATCH] f2fs: fix fdatasync Chao Yu <yuchao0@huawei.com> - 2016-11-17 18:30 +0100
    Re: [PATCH] f2fs: fix fdatasync Chao Yu <yuchao0@huawei.com> - 2016-11-17 04:00 +0100

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