[PATCH] iotests: Fix 291 across more file systems

[Eric Blake <eblake@redhat.com>]

Depending on the granularity of holes and amount of metadata consumed
by a file, the 'disk size:' number of 'qemu-img info' is not reliable.
Adjust our test to use a different set of filters to avoid spurious
failures.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Fixes: cf2d1203dc
Signed-off-by: Eric Blake <eblake@redhat.com>
---
 tests/qemu-iotests/291     | 4 ++--
 tests/qemu-iotests/291.out | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/qemu-iotests/291 b/tests/qemu-iotests/291
index 3ca83b9cd1f7..910326b0ec55 100755
--- a/tests/qemu-iotests/291
+++ b/tests/qemu-iotests/291
@@ -77,7 +77,7 @@ echo

 # Only bitmaps from the active layer are copied
 $QEMU_IMG convert --bitmaps -O qcow2 "$TEST_IMG.orig" "$TEST_IMG"
-$QEMU_IMG info "$TEST_IMG" | _filter_img_info --format-specific
+_img_info --format-specific
 # But we can also merge in bitmaps from other layers.  This test is a bit
 # contrived to cover more code paths, in reality, you could merge directly
 # into b0 without going through tmp
@@ -87,7 +87,7 @@ $QEMU_IMG bitmap --add --merge b0 -b "$TEST_IMG.base" -F $IMGFMT \
 $QEMU_IMG bitmap --merge tmp -f $IMGFMT "$TEST_IMG" b0
 $QEMU_IMG bitmap --remove --image-opts \
     driver=$IMGFMT,file.driver=file,file.filename="$TEST_IMG" tmp
-$QEMU_IMG info "$TEST_IMG" | _filter_img_info --format-specific
+_img_info --format-specific

 echo
 echo "=== Check bitmap contents ==="
diff --git a/tests/qemu-iotests/291.out b/tests/qemu-iotests/291.out
index 8c62017567e9..9f661515b417 100644
--- a/tests/qemu-iotests/291.out
+++ b/tests/qemu-iotests/291.out
@@ -24,7 +24,7 @@ qemu-img: Format driver 'raw' does not support bitmaps
 image: TEST_DIR/t.IMGFMT
 file format: IMGFMT
 virtual size: 10 MiB (10485760 bytes)
-disk size: 4.39 MiB
+cluster_size: 65536
 Format specific information:
     compat: 1.1
     compression type: zlib
@@ -44,7 +44,7 @@ Format specific information:
 image: TEST_DIR/t.IMGFMT
 file format: IMGFMT
 virtual size: 10 MiB (10485760 bytes)
-disk size: 4.48 MiB
+cluster_size: 65536
 Format specific information:
     compat: 1.1
     compression type: zlib
-- 
2.27.0