broadcom: Add BCM50610M support

[~andy/linux] / block / elevator.c

diff --git a/block/elevator.c b/block/elevator.c
index ca861927ba41b2dfc9ff80c139f6c8cc162fc251..2d511f9105e16abcf93cad6ac849ad9996661a32 100644 (file)
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -100,6 +100,19 @@ int elv_rq_merge_ok(struct request *rq, struct bio *bio)
        if (bio_integrity(bio) != blk_integrity_rq(rq))
                return 0;
 
+       /*
+        * Don't merge if failfast settings don't match.
+        *
+        * FIXME: The negation in front of each condition is necessary
+        * because bio and request flags use different bit positions
+        * and the accessors return those bits directly.  This
+        * ugliness will soon go away.
+        */
+       if (!bio_failfast_dev(bio)       != !blk_failfast_dev(rq)       ||
+           !bio_failfast_transport(bio) != !blk_failfast_transport(rq) ||
+           !bio_failfast_driver(bio)    != !blk_failfast_driver(rq))
+               return 0;
+
        if (!elv_iosched_allow_merge(rq, bio))
                return 0;