Re: [PATCH 3/5] generic/449: always fill up the data device

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On Tue, Apr 27, 2021 at 09:09:12PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@xxxxxxxxxx>
> 
> This is yet another one of those tests that looks at what happens when
> we run out of space for more metadata (in this case, xattrs).  Make sure
> that the 256M we write to the file to try to stimulate ENOSPC gets
> written to the same place that xfs puts xattr data -- the data device.
> 
> Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> ---
>  tests/generic/449 |    5 +++++
>  1 file changed, 5 insertions(+)
> 
> 
> diff --git a/tests/generic/449 b/tests/generic/449
> index a2d882df..5fd15367 100755
> --- a/tests/generic/449
> +++ b/tests/generic/449
> @@ -43,6 +43,11 @@ _require_attrs trusted
>  _scratch_mkfs_sized $((256 * 1024 * 1024)) >> $seqres.full 2>&1
>  _scratch_mount || _fail "mount failed"
>  
> +# This is a test of xattr behavior when we run out of disk space for xattrs,
> +# so make sure the pwrite goes to the data device and not the rt volume.
> +test "$FSTYP" = "xfs" && \
> +	$XFS_IO_PROG -c 'chattr -t' $SCRATCH_MNT
> +

This seems like the type of thing we'll consistently be playing
whack-a-mole with unless we come up with a better way to manage it. I'm
not sure what the solution for that is though, so:

Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>

>  TFILE=$SCRATCH_MNT/testfile.$seq
>  
>  # Create the test file and choose its permissions
> 




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