iotests: fix _check_o_direct
Unfortunately commit "iotests: handle tmpfs" breaks running iotests
with -nbd -nocache, as _check_o_direct tries to create
$TEST_IMG.test_o_direct, but in case of nbd TEST_IMG is something like
nbd+unix:///... , and test fails with message
qemu-img: nbd+unix:///?socket[...]test_o_direct: Protocol driver
'nbd' does not support image creation, and opening the image
failed: Failed to connect to '/tmp/tmp.[...]/nbd/test_o_direct': No
such file or directory
Use TEST_DIR instead.
Fixes:
cfdca2b9f9d4ca26bb2b2dfe8de3149092e39170
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <
20201218182012.47607-1-vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>