block: get rid of the manual directory counting in blktrace
It can result in a stuck blktrace system, if --kill is used.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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It can result in a stuck blktrace system, if --kill is used.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>