Re: [PATCHv3 2/2] generic/496: ext4 and xfs supports swapon on fallocated file

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On Tue, Jan 05, 2021 at 08:01:43PM +0530, Ritesh Harjani wrote:
> ext4, xfs should not fail swapon on fallocated file. Currently if this
> fails the fstst was not returning a failure. Fix those for given
> filesystems (for now added ext4/xfs).
> There were some regressions which went unnoticed due to this in ext4
> tree, which later got fixed as part of this patch [1]
> 
> [1]: https://patchwork.ozlabs.org/patch/1357275
> 
> Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

--D

> ---
> v2 -> v3:
> 1. Removed whitelisted naming convention.
> 
>  tests/generic/496   | 16 +++++++++++++---
>  tests/generic/group |  2 +-
>  2 files changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/tests/generic/496 b/tests/generic/496
> index 805c6ac1c0ea..1bfd16411b8a 100755
> --- a/tests/generic/496
> +++ b/tests/generic/496
> @@ -5,7 +5,7 @@
>  # FS QA Test No. 496
>  #
>  # Test various swapfile activation oddities on filesystems that support
> -# fallocated swapfiles.
> +# fallocated swapfiles (for given fs ext4/xfs)
>  #
>  seq=`basename $0`
>  seqres=$RESULT_DIR/$seq
> @@ -61,8 +61,18 @@ touch $swapfile
>  $CHATTR_PROG +C $swapfile >> $seqres.full 2>&1
>  $XFS_IO_PROG -f -c "falloc 0 $len" $swapfile >> $seqres.full
>  "$here/src/mkswap" $swapfile
> -"$here/src/swapon" $swapfile >> $seqres.full 2>&1 || \
> -	_notrun "fallocated swap not supported here"
> +
> +# ext4/xfs should not fail for swapon on fallocated files
> +case $FSTYP in
> +ext4|xfs)
> +	"$here/src/swapon" $swapfile >> $seqres.full 2>&1 || \
> +		_fail "swapon failed on fallocated file"
> +	;;
> +*)
> +	"$here/src/swapon" $swapfile >> $seqres.full 2>&1 || \
> +		_notrun "fallocated swap not supported here"
> +	;;
> +esac
>  swapoff $swapfile
> 
>  # Create a fallocated swap file and touch every other $PAGE_SIZE to create
> diff --git a/tests/generic/group b/tests/generic/group
> index fec35d8e7b12..30a73605610d 100644
> --- a/tests/generic/group
> +++ b/tests/generic/group
> @@ -498,7 +498,7 @@
>  493 auto quick swap dedupe
>  494 auto quick swap punch
>  495 auto quick swap
> -496 auto quick swap
> +496 auto quick swap prealloc
>  497 auto quick swap collapse
>  498 auto quick log
>  499 auto quick rw collapse zero
> --
> 2.26.2
> 



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