Re: [PATCH] fstests: Do not execute xfs/{532,533,538} when realtime feature is enabled

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On Mon, Apr 05, 2021 at 01:14:47PM +0530, Chandan Babu R wrote:
> The minimum length space allocator (i.e. xfs_bmap_exact_minlen_extent_alloc())
> depends on the underlying filesystem to be fragmented so that there are enough
> one block sized extents available to satify space allocation requests.
> 
> xfs/{532,533,538} tests issue space allocation requests for metadata (e.g. for
> blocks holding directory and xattr information). With realtime filesystem
> instances, these tests would end up fragmenting the space on realtime
> device. Hence minimum length space allocator fails since the regular
> filesystem space is not fragmented and hence there are no one block sized
> extents available.
> 
> Thus, this commit disables execution of xfs/{532,533,538} when realtime
> feature is enabled on the filesystem instance.
> 
> Reported-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> Signed-off-by: Chandan Babu R <chandanrlinux@xxxxxxxxx>
> ---
>  tests/xfs/532 | 1 +
>  tests/xfs/533 | 1 +
>  tests/xfs/538 | 1 +
>  3 files changed, 3 insertions(+)
> 
> diff --git a/tests/xfs/532 b/tests/xfs/532
> index 2bed574a..5359add5 100755
> --- a/tests/xfs/532
> +++ b/tests/xfs/532
> @@ -37,6 +37,7 @@ _supported_fs xfs
>  _require_scratch
>  _require_attrs
>  _require_xfs_debug
> +_require_no_realtime

Alternately, you could do:

	$XFS_IO_PROG -c 'chattr -t' $SCRATCH_MNT

and not reduce test coverage.

--D

>  _require_test_program "punch-alternating"
>  _require_xfs_io_error_injection "reduce_max_iextents"
>  _require_xfs_io_error_injection "bmap_alloc_minlen_extent"
> diff --git a/tests/xfs/533 b/tests/xfs/533
> index be909fcc..4826cccc 100755
> --- a/tests/xfs/533
> +++ b/tests/xfs/533
> @@ -35,6 +35,7 @@ rm -f $seqres.full
>  _supported_fs xfs
>  _require_scratch
>  _require_xfs_debug
> +_require_no_realtime
>  _require_test_program "punch-alternating"
>  _require_xfs_io_error_injection "reduce_max_iextents"
>  _require_xfs_io_error_injection "bmap_alloc_minlen_extent"
> diff --git a/tests/xfs/538 b/tests/xfs/538
> index 90eb1637..53a2c060 100755
> --- a/tests/xfs/538
> +++ b/tests/xfs/538
> @@ -35,6 +35,7 @@ rm -f $seqres.full
>  _supported_fs xfs
>  _require_scratch
>  _require_xfs_debug
> +_require_no_realtime
>  _require_test_program "punch-alternating"
>  _require_xfs_io_error_injection "bmap_alloc_minlen_extent"
>  
> -- 
> 2.29.2
> 



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