[PATCH] shared/298: run xfs_db against the loop device instead of the image file

[Christoph Hellwig <hch@lst.de>]

xfs_db fails to properly detect the device sector size and thus segfaults
when run again an image file with 4k sector size.  While that's something
we should fix in xfs_db it will require a fair amount of refactoring of
the libxfs init code.  For now just change shared/298 to run xfs_db
against the loop device created on the image file that is used for I/O,
which feels like the right thing to do anyway to avoid cache coherency
issues.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 tests/shared/298 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/shared/298 b/tests/shared/298
index 071c03dee..f657578c7 100755
--- a/tests/shared/298
+++ b/tests/shared/298
@@ -69,7 +69,7 @@ get_free_sectors()
 	agsize=`$XFS_INFO_PROG $loop_mnt | $SED_PROG -n 's/.*agsize=\(.*\) blks.*/\1/p'`
 	# Convert free space (agno, block, length) to (start sector, end sector)
 	_umount $loop_mnt
-	$XFS_DB_PROG -r -c "freesp -d" $img_file | $SED_PROG '/^.*from/,$d'| \
+	$XFS_DB_PROG -r -c "freesp -d" $loop_dev | $SED_PROG '/^.*from/,$d'| \
 		 $AWK_PROG -v spb=$sectors_per_block -v agsize=$agsize \
 		'{ print spb * ($1 * agsize + $2), spb * ($1 * agsize + $2 + $3) - 1 }'
 	;;
-- 
2.39.2