block: fix blk_rq_map_kern bio direction flag

This bug was introduced in 7b6d91daee5cac6402186ff224c3af39d79f4a0e
"block: unify flags for struct bio and struct request"

Cc: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
1 file changed