generic/009: don't run for btrfs if PAGE_SIZE > 4096

Btrfs has the same issue as XFS here in that the extent layout on a
> 4096 page size system will not match what is reflected in the test
output.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
diff --git a/tests/generic/009 b/tests/generic/009
index 797def5..d9e349c 100755
--- a/tests/generic/009
+++ b/tests/generic/009
@@ -56,12 +56,12 @@
 	_ext4_disable_extent_zeroout
 fi
 
-# When PAGE_SIZE > 4096 xfs extent layout is different so it would not match
-# the output.
-if [ "$FSTYP" = "xfs" ]; then
+# When PAGE_SIZE > 4096 some filesystems extent layout is different so
+# it would not match the output.
+if [ "$FSTYP" = "xfs" -o "$FSTYP" = "btrfs" ]; then
 	PAGE_SIZE=`getconf PAGE_SIZE`
 	if [ $PAGE_SIZE -gt 4096 ]; then
-		_notrun "Not supported on xfs with page size > 4096"
+		_notrun "Not supported on $FSTYP with page size > 4096"
 	fi
 fi