btrfs-progs: tests: Add '-o loop' to mount command line in convert-tests.sh

To fix following bug:
 # ./convert-tests.sh
     [TEST]   ext2 4k nodesize, btrfs defaults
 failed: mount /root/btrfsprogs/tests/test.img /root/btrfsprogs/tests/mnt
 # tail convert-tests-results.txt
 ...
 ############### mount /root/btrfsprogs/tests/test.img /root/btrfsprogs/tests/mnt
 mount: /root/btrfsprogs/tests/test.img is not a block device (maybe try `-o loop'?)
 failed: mount /root/btrfsprogs/tests/test.img /root/btrfsprogs/tests/mnt

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/tests/convert-tests.sh b/tests/convert-tests.sh
index 68c03dc..4d99a61 100755 (executable)
--- a/tests/convert-tests.sh
+++ b/tests/convert-tests.sh
@@ -42,7 +42,7 @@ convert_test() {
 
        # create a file to check btrfs-convert can convert regular file
        # correct
-       run_check $SUDO_HELPER mount $IMAGE $TEST_MNT
+       run_check $SUDO_HELPER mount -o loop $IMAGE $TEST_MNT
        run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/test bs=$nodesize \
                count=1 1>/dev/null 2>&1
        run_check $SUDO_HELPER umount $TEST_MNT