Re: [PATCH] btrfs: test direct IO write against raid5/6 filesystems

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On Thu, Jul 13, 2017 at 03:10:40PM +0100, fdmanana@xxxxxxxxxx wrote:
> From: Filipe Manana <fdmanana@xxxxxxxx>
> 
> Test that a direct IO write works against raid5/6 filesystems and that
> after the write operation we are able to read back the correct data
> and scrub operations don't find any errors.
> 
> This test is motivated by a regression introduced in the merge window
> for the 4.13 linux kernel, which was undetected by the current set of
> test cases. The issue is fixed by the following patch:
> 
>   "Btrfs: fix write corruption due to bio cloning on raid5/6"
> 
> Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx>

Thanks for the test! I did minor updates and committed:

- add _require_odirect in the test
- add rw group

Thanks,
Eryu
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