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Subject: Re: [PATCH V2] generic: test reflinked file corruption after short
 COW
To:     Eryu Guan <guan@eryu.me>, Eric Sandeen <sandeen@redhat.com>
Cc:     fstests@vger.kernel.org, xfs <linux-xfs@vger.kernel.org>
References: <b63354c6-795d-78e2-4002-83c08a373171@redhat.com>
 <72427003-febc-cc31-743d-41e25b314874@redhat.com>
 <20201011050122.GU3853@desktop>
From:   Eric Sandeen <sandeen@sandeen.net>
Message-ID: <d676e096-c80f-cb57-99f8-d022281925aa@sandeen.net>
Date:   Mon, 12 Oct 2020 10:46:31 -0500
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On 10/11/20 12:01 AM, Eryu Guan wrote:
>> +# Make all files w/ 1m hints; create original 2m file
>> +$XFS_IO_PROG -c "extsize 1048576" $DIR | _filter_xfs_io
>> +$XFS_IO_PROG -c "cowextsize 1048576" $DIR | _filter_xfs_io
> This only works on xfs, and prints extra message on btrfs like
> 
> +foreign file active, extsize command is for XFS filesystems only                                     
> +foreign file active, cowextsize command is for XFS filesystems only
> 
> So I discard outputs of above xfs_io commands.
> 
> Thanks,
> Eryu
> 

Oh, sorry about that.  Thanks for fixing.