Make the disk mini-layer check for and handle zero-length transfers

instead of the underlying drivers.

1 files changed, 0 insertions, 7 deletions

diff --git a/sys/dev/aac/aac_disk.c b/sys/dev/aac/aac_disk.c
index 09bd971..564f79e 100644
--- a/sys/dev/aac/aac_disk.c
+++ b/sys/dev/aac/aac_disk.c
@@ -168,13 +168,6 @@ aac_disk_strategy(struct bio *bp)
 	return;
     }
 
-    /* do-nothing operation? */
-    if (bp->bio_bcount == 0) {
-	bp->bio_resid = bp->bio_bcount;
-	biodone(bp);
-	return;
-    }
-
     /* perform accounting */
     devstat_start_transaction(&sc->ad_stats);