test that unregister_files processes task work
test that unregister_files processes task work

Ensure that unregister_files processes task work from defer_taskrun even
when not explicitly flushed.

Signed-off-by: Dylan Yudaken <203ae8bb785c49229d9d2ff72bddc0c8f3aba6ea@meta.com>
Reviewed-by: Ammar Faizi <a8266392a329a5c7b5ab982a8996391d75b6438e@gnuweeb.org>
Link: https://lore.kernel.org/r/20221108124207.751615-1-203ae8bb785c49229d9d2ff72bddc0c8f3aba6ea@meta.com
Signed-off-by: Jens Axboe <cd8c6775e60d6f67a6984377324e5290df3d5358@kernel.dk>

axboe/liburing,axboe/liburing,axboe/liburing