perf top: Add overwrite fall back

[linux-2.6-microblaze.git] / block / blk-wbt.c

diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index ae8de97..f92fc84 100644 (file)
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -697,7 +697,15 @@ u64 wbt_default_latency_nsec(struct request_queue *q)
 
 static int wbt_data_dir(const struct request *rq)
 {
-       return rq_data_dir(rq);
+       const int op = req_op(rq);
+
+       if (op == REQ_OP_READ)
+               return READ;
+       else if (op == REQ_OP_WRITE || op == REQ_OP_FLUSH)
+               return WRITE;
+
+       /* don't account */
+       return -1;
 }
 
 int wbt_init(struct request_queue *q)