block: change the tag sync vs async restriction logic

Make them fully share the tag space, but disallow async requests using
the last any two slots.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index 49065075d46..1c748403882 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1815,7 +1815,7 @@ void blk_dequeue_request(struct request *rq)
          * the driver side.
          */
         if (blk_account_rq(rq))
-                q->in_flight++;
+                q->in_flight[rq_is_sync(rq)]++;
 }
 
 /**