Re: [PATCH 3/3] common/rc: relax xfs swapfile support checks

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On Tue, Apr 27, 2021 at 09:09:47PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@xxxxxxxxxx>
> 
> In commit 725feeff, I forgot that xfs has *not* always supported all
> swap file configurations -- the bmap swapfile activation prior to the
> introduction of iomap_swapfile_activate did not permit the use of
> unwritten extents in the swap file.  Therefore, kick xfs out of the
> always-supported list.
> 
> Fixes: 725feeff ("common/rc: swapon should not fail for given FS in _require_scratch_swapfile()")
> Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
> ---

Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>

>  common/rc |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> 
> diff --git a/common/rc b/common/rc
> index 429cc24d..7882355a 100644
> --- a/common/rc
> +++ b/common/rc
> @@ -2494,10 +2494,10 @@ _require_scratch_swapfile()
>  	statx_attr="$($XFS_IO_PROG -c 'statx -r' $SCRATCH_MNT/swap 2>/dev/null | grep 'stat.attributes = ' | awk '{print $3}')"
>  	test "$((statx_attr & 0x200000))" -gt 0 && _notrun "swapfiles not supported on DAX"
>  
> -	# ext* and xfs have supported all variants of swap files since their
> +	# ext* has supported all variants of swap files since their
>  	# introduction, so swapon should not fail.
>  	case "$FSTYP" in
> -	ext2|ext3|ext4|xfs)
> +	ext2|ext3|ext4)
>  		if ! swapon "$SCRATCH_MNT/swap" >/dev/null 2>&1; then
>  			_scratch_unmount
>  			_fail "swapon failed for $FSTYP"
> 




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